Application guide:
ESD protection

For automotive and industrial applications:car infotainment, body control modules, video cameras,
industrial computers, and test & measurement equipment

Contents
1. Automotive interfaces............................................................................................................................................................... 4
1.1 CAN..................................................................................................................................................................................................... 4
1.2 LIN...................................................................................................................................................................................................... 5
1.3 FlexRay ............................................................................................................................................................................................. 6
1.4 BroadR-reach ESD protection........................................................................................................................................................ 7
1.5 Car infotainment.............................................................................................................................................................................. 8

2. NFC antennas............................................................................................................................................................................... 9
3. General I/O protection............................................................................................................................................................. 10
3.1 Digital I/O ....................................................................................................................................................................................... 10
3.2 Analog I/O....................................................................................................................................................................................... 11
3.3 Low-voltage comparator.............................................................................................................................................................. 12

4. Serial buses................................................................................................................................................................................. 13
4.1 Legacy: I2C....................................................................................................................................................................................... 13
4.2 Legacy: SPI/SSI............................................................................................................................................................................... 14
4.3 Legacy: RS-232 and RS-485.......................................................................................................................................................... 15
4.4 USB2.0 and USB OTG..................................................................................................................................................................... 16

This document offers a lineupof commonly found interfaces
along with suggested methods
for protecting against ESD and/or
surges. For each interface we show
example circuits and present a
lineup of recommended solutions
from Nexperia. In all cases, theshown lineup is a subset of thetotal number of possible solutions
Nexperia can offer. Please direct
any questions or concern feel toyour local Nexperia representativefor further details and information.

4.5 USB 3.0............................................................................................................................................................................................ 17
4.6 eSATA............................................................................................................................................................................................... 18
4.7 High-speed differential mode signaling (LVDS, CML, TMDS, etc.)........................................................................................ 19

5. Display interfaces...................................................................................................................................................................... 21
5.1 HDMI................................................................................................................................................................................................ 21
5.2 DisplayPort.................................................................................................................................................................................... 22

6. Ethernet...................................................................................................................................................................................... 23
6.1 Ethernet ESD protection............................................................................................................................................................. 23

7. RF................................................................................................................................................................................................... 24
7.1 GPS /GNSS...................................................................................................................................................................................... 24
7.2 WLAN.............................................................................................................................................................................................. 25

8. Notes ........................................................................................................................................................................................... 26

Application guide: ESD protection

2

Introduction
Nexperia – your partner for ESD protection
ESD protection has been an important part of electronic
design for many years. Now, as integration levels continue toincrease, and process geometries continue to shrink, the ESDinduced damage is a more present threat than ever before.
Add this to the growing demand for portable electronics, and
ESD protection has become an essential issue at the systemlevel.
Adding comprehensive ESD protection to a system isn’t justsmart engineering, it’s also a low-cost, easy way to prevent
problems later in the product life cycle: An ESD problem
that remains hidden in a system, poses an increased risk offield failures, reduced system life, and other quality-related
problems that are difficult to manage and expensive to resolve.
The after-market costs associated with field repair and productrecalls can be crippling, and quality issues can do serious harmto the brand reputation.

What you get when you choose Nexperia for ESD protection›› Greater system-level immunity (IEC61000-4-2 level 4 standard and beyond)›› Ultra-low clamping voltages, to safeguard even the latest, smallest geometries in SoC
devices›› Minimized impact on bus and interface signal integrity›› Low leakage current, for maximum energy efficiency and minimum distortion on analog
interfaces›› Arrays that combine multiline protection in single devices›› Packages that simplify PCB design for optimized layouts

Nexperia offers more than 400 protection devices, ranging
from single-protection diodes to complete, highly integrated
companion ICs. Our ESD solutions are offered in a wide
package portfolio, ranging from leaded to leadless packages.
Moreover, package innovations like solderable side pads
enable visual inspection while a package innovation likepass-through routing assures an optimal board layout as wellas enhanced ESD protection as the device can be positioned
closed to the interface.
This application guide covers automotive and industrial
applications. But what you see here is just the tip of theiceberg. For a full listing of our most up-to-date ESD
protection solutions,visit www.nexperia.com/protection.

Application guide: ESD protection

Automotive

Industrial31. Automotive interfaces

1.1 CAN 

Nexperia’s solutions protect two automotive Controller
Area Network (CAN) bus lines from the damage caused by
ESD and other transients. They can be used with high-speed
and fault-tolerant CAN buses.

 

 
CAN system architecture with a single device to protect the CAN node

Selection guidePart

Package

Size (mm)ESD robustness(IEC61000-4-2)

Cd (max)

Pppm at tp = 8/20µs

VRWM

AEC-Q101

PESD2IVN-U

SOT3232.0 x 1.25 x 0.95

23 kV

11 pF

150 W

26.5 VYes

PESD1CAN-U

SOT3232.0 x 1.25 x 0.95

23 kV

12 pF

150 W

24 V

Yes

PESD1CAN

SOT23

2.9 x 1.3 x 1.0

23 kV

17 pF

200 W

24 V

Yes

PESD2CAN

SOT23

2.9 x 1.3 x 1.0

30 kV

30 pF

230 W

24 V

Yes

Application guide: ESD protection

4

1. Automotive interfaces

1.2 LIN
The PESD1LIN protects one automotive Local Interconnect
Network (LIN) bus line from the damage caused by ESD
and other transients. Its asymmetrical internal diodeconfiguration ensures optimized electromagnetic immunity
for the protected LIN ECU.

   LIN system architecture with a single device to protect the LIN node

Selection guidePart

Package

Size (mm)ESD robustness(IEC61000-4-2)

Cd (max)

Pppm at tp = 8/20µs

VRWM

AEC-Q101

PESD1IVN-U

SOT3232.0 x 1.25 x 0.95

23kV

11 pF

150 W

26.5 VYes

PESD1LIN

SOD323

1.7 x 1.25 x 0.95

23 kV

17 pF

160 W

15/24 VYes

Application guide: ESD protection

5

1. Automotive interfaces

1.3 FlexRay
The PESD1FLEX protects two automotive FlexRay data lines
from the damage caused by ESD and other transients. It
supports the FlexRay data rate of 10 Mbit/s and provides asurge capability of up to 200 W per line for an 8/20 μs pulse.

 
 






Bidirectional and unidirectional ESD protection for GPIO

Selection guidePart

Package

Size (mm)ESD robustness(IEC61000-4-2)

Cd (max)

Pppm at tp = 8/20μs

VRWM

AEC-Q101

PESD1FLEX

SOT23

2.9 x 1.3 x 1.0

23 kV

17 pF

200 W

24 V

YES

PESD3V3U1UL

SOT3232.0 x 1.25 x 0.95

18 kV

11 pF

150 W

26.5 VYES

Application guide: ESD protection

6

1. Automotive interfaces

1.4 BroadR-reach ESD protection
BroadR-Reach is a relatively new Ethernet standard
mainly targeting automotive applications. One of the key
advantages of this standard compared to the standard
Ethernet specification is that no transformer is required.
Today, the most commonly found speed is 100 Mbit
per channel.
Typical applications are high -speed interfaces forinfotainment or ADAS systems within a car.
The figure on the right shows a typical ESD protection
structure that can be used on a 100 Mbit BroadR-reachinterface. The shown example implements a single channel.
Multi-channel protection is possible with other devices aslisted in the table below.

BroadR-reach protection, single channel

Selection guidePart

Package

Size (mm)

Cd

Level

Note

PESD1LVDSDFN2510-10

1.0 x 2.5 x 0.5

0.6 pF

8 kV

2-channel protection, AEC-Q101

PRTR5V0U4D

SOT457

2.9 x 1.5 x 1.0

1.0 pF

8 kV

2-channel protection, AEC-Q101

1.8 pF

12 kV

1-channel protection, AEC-Q101

1.0 pF

8 kV

1-channel protection, AEC-Q101

1.8 pF

12 kV

1-channel-protection, AEC-Q101

PRTR5V0U2AX
PESD2ETH-X
PESD2ETH-AX

Application guide: ESD protection

SOT143B

2.9 x 1.3 x 1.0

7

1. Automotive interfaces

1.5 Car infotainment
The PESD1LVDS is specifically designed to provide ESD
protection for the ultra high-speed interfaces used forin-vehicle networking, such as Low-Voltage Differential
Signaling (LVDS), High-Definition Multimedia Interface(HDMI) and DisplayPort.

Central

board

The device enables pass-through routing for the TMDS
lines which supports ease of design and the minimization ofparasitic influences.

Module
board

e.g.

cameraor
display

UTPcable

PESD1LVDS 

The PESD1LVDS is AEC-Q101 qualified and hence an ideal
choice for high speed interfaces in the automotive market.
In LVDS systems, the PESD1LVDS provides ultra high-speed ESD protection that is fully AEC-Q101 compliant

Selection guidePart

Package

PESD1LVDS

Application guide: ESD protection

DFN2510-10 (XSON10)

Size (mm)1.0 x 2.5 x 0.5

ESD robustness(IEC61000-4-2)

8 kV

Cd (max)

Cd Matching

0.6 pF< 0.05 pF

VRWM

AEC-Q101

5.5 V

Yes

8

2. NFC antennas
%#''#" %' * ''"'""
#!!" #% 
$

Near Field Communication (NFC) is a standard that supports
user-friendly contactless ID functions. Typical applications
include contactless payment, ticketing in public transport,
and easy contactless data transfer.

#"'%# % '%
%('


#"'%# %"'""
%!"'#" %#''#"

'"%('

 '%
%('


%#''#""'""%!"  #'"%('"'"" #

In most NFC designs, the NFC antenna is connected to the
NFC controller IC via small contacts. These contacts are aneasy entry point for ESD strikes that can damage the NFC
controller IC. For this reason, external ESD protection ishighly recommended in systems that use NFC.
Nexperia co-created the NFC standard and founded the NFC
Forum. The PESD18VF1Bx and PESD24VF1Bx devices are
specifically designed to provide optimal protection against
ESD strikes in NFC systems, while minimizing the impactthat loading and/or impedance mismatch can have on thesensitive antenna portion of the design.

%#''#" ')" '%"!'"%('$ "'"" %)!#  #&%#''#" %' * ''"'""
#!!" #% 
$

NFC protection can reside at the antenna or between the filter and the matching circuit#"'%# % '%
%('


%#''#"

'"%('"'""%!"  #Selection guidePart

Package

Size (mm)ESD robustness(IEC61000-4-2)

Cd (max)

IPPM

VRWM

Rdyn

PESD18VF1BSF
DSN0603-2

0.6 x 0.3 x 0.3

0.45 pF

PESD1NFC-SF

0.6 Ω
18 V

%#''#" ')" '%"!'"%('$ "'"" %)!#  #&PESD18VF1BL

0.5 pFPESD24VF1BL
DFN1006-2

1.0 x 0.6 x 0.48

10 kV

0.45 pF

24 V
0.8 Ω

1A

PESD1NFC-L

0.5 pFPESD2NFC-L

0.45 pF

PESD24VF1BSF

18 V

24 V
DSN0603-2

0.6 x 0.3 x 0.3

0.4 pF

0.6 Ω

PESD2NFC-SF

Application guide: ESD protection

9

3. General I/O protection

3.1 Digital I/O
GPIO
 
bi-directional
protection

There are many ways to protect general-purpose digital I/O(GPIO). High-frequency signaling is not typically applicablefor these kind of interfaces, so there’s no need to optimize
for low capacitive loading. The three key elements to selectupon are unidirectional vs. bidirectional, one vs. multichannel device and last but not least the package variant.
As shown in the table, there are many standard devices thatmeet these various requirements.

GPIO
 
uni-directional
protection









Bidirectional and unidirectional ESD protection for GPIO

Selection guidePart

Package

ESD robustness(IEC61000-4-2)

Size (mm)Configuration

PESD5Z6.0

SOD523

1.2 x 0.8 x 0.6

30 kV

1 channel unidirectional

PESD3V3U1ULDFN1006-2

1.0 x 0.6 x 0.48

9 kV

1 channel unidirectional

PESD5V0S1BL

DFN1006-2

1.0 x 0.6 x 0.48

30 kV

1 channel bidirectional

PESD5V0S1BA

SOD323

1.7 x 1.25 x 0.95

30 kV

1 channel bidirectional

PESD5V2S2UT

SOT23

2.9 x 1.3 x 1.0

30 kV

2 channel unidirectional/ 1 channel bidirectional

BZA456A

SOT457

2.9 x 1.5 x 1.0

8 kV

4 channel unidirectional

PESD3V3S4UD

SOT457

2.9 x 1.5 x 1.0

30 kV

4 channel unidirectional

PESD5V0V1BL

DFN1006-2

1.0 x 0.6 x 0.48

30 kV

1 channel bidirectional

PESD5V0X1UALDDFN1006D-2

1.0 x 0.6 x 0.37

15 kV

1 channel unidirectional

PESD5V0V1BDSF

DSN0603-2

0.6 x 0.3 x 0.3

30 KV

1 channel bidirectional

Application guide: ESD protection

10

3. General I/O protection

3.2 Analog I/O
Although the operating voltages for analog I/O are often
limited, most devices can tolerate relatively high voltages
for prolonged period without sustaining damage. For
ESD protection, this means the required reverse blocking
voltage (VRWM) must be sufficiently high to not conduct at
higher voltages.
Low leakage is another requirement for many analog I/O
systems. When implementing a fairly accurate analog input,
it’s recommended to limit any externally induced leakage
that loads the analog input. The protection structure must
minimize leakage currents.
Nexperia offers several devices that are ideal for industrial
analog I/O port protection, offering higher-than-standard
VRWM, lower leakage, and a small footprint to enable highdensity analog front-end designs.
Analog I/O protection using the PESD36VS1UL with single or multiple devices

Selection guidePart

Package

Size (mm)ESD robustness(IEC61000-4-2)

VRWM

Configuration

PESD36VS1ULDFN1006-2

1.0 x 0.6 x 0.48

36 V

30 kV

1 channel unidirectional

PESD24VU1UT

SOT23

2.9 x 1.3 x 1.0

24 V

30 kV

1 channel unidirectional

PESD24VS1UBSOD523

1.2 x 0.8 x 0.6

24 V

23 kV

1 channel unidirectional

PESD36VS2UT

SOT23

2.9 x 1.3 x 1.0

36 V

30 kV

2 channel unidirectional

PESD24VS2UT

SOT23

2.9 x 1.3 x 1.0

24 V

23 kV

2 channel unidirectional

PESD12VV1BLDFN1006-2

1.0 x 0.6 x 0.48

12 V

30 kV

1 channel bidirectional

PESD36VS1UJSOD323F

1.7 x 1.25 x 0.8

36 V

30 kV

1 channel unidirectional

PESD18VF1BL

DFN1006-2

1.0 x 0.6 x 0.48

18 V

10 kV

1 channel unidirectional

Application guide: ESD protection

11

3. General I/O protection

3.3 Low-voltage comparator

External ESD protection forinternal microcontroller
comparator

Many microcontrollers today integrate analog functions
such as a comparator. Depending on the connection to thecomparator input(s), ESD protection may be required.

Ext
input

As long as the comparator does not operate at a very highspeed, the protection device can be a standard device with astandard capacitance.

Vref

Unidirectional, low-voltage comparator ESD protection

Selection guidePart

Package

ESD robustness(IEC61000-4-2)

Size (mm)Configuration

PESD5Z6.0

SOD523

1.2 x 0.8 x 0.6

30 kV

1 channel unidirectional

PESD3V3U1ULDFN1006-2

1.0 x 0.6 x 0.48

9 kV

1 channel unidirectional

PESD5V0S1BL

DFN1006-2

1.0 x 0.6 x 0.48

30 kV

1 channel bidirectional

PESD5V0S1BA

SOD323

1.7 x 1.25 x 0.95

30 kV

1 channel bidirectional

PESD5V2S2UT

SOT23

2.9 x 1.3 x 1.0

30 kV

2 channel unidirectional / 1 channel bidirectional
4 channel unidirectional

PESD3V3S4UD

SOT457

2.9 x 1.5 x 1.0

30 kV

PESD5V0V1BL

DFN1006-2

1.0 x 0.6 x 0.48

30 kV

1 channel bidirectional

PESD5V0X1UALDDFN1006D-2

1.0 x 0.6 x 0.37

15 kV

1 channel unidirectional

Application guide: ESD protection

12

SCL

4. Serial buses

4.1 Legacy: I2C

Rail to railwith zener clamp

Rail to railhigh side to Vcc

I2C speeds range from the original 100 KHz up to 5 MHz in
Ultra Fast mode. The solutions shown here are more tailoredfor I2C solutions running at speeds of 100 kHz (standard) to
400 kHz (Fast Mode).
The figure represents two types of rail-to-rail protection,
which tends to offer better performance for high-speed
interfacing.

SDA

SDA

SCL

SCL

I2C protection two rail-to-rail configurations that minimize capacitive line loading

Selection guidePart

Package

Size (mm)No. of Lines

ESD robustness(IEC61000-4-2)

Cd

NUP1301

SOT23

2.9 x 1.3 x 1.0

10.75 pF

30 kV

NUP1301U

SOT3232.0 x 1.25 x 0.95

10.75 pF

30 kV

IP4220CZ6SOT457

2.9 x 1.5 x 1.0

4

1 pF

8 kV

IP4221CZ6-S

DFN1410-6

1.45 x 1.0 x 0.48

4

1 pF

8 kV

PRTR5V0U4Y

SOT3632.0 x 1.25 x 0.95

4

1 pF

8 kV

PRTR5V0U2X

SOT143B

2.9 x 1.3 x 1.0

2

1 pF

8 kV

PRTR5V0U2F

DFN1410-6

1.45 x 1.0 x 0.48

2

1 pF

8 kV

PRTR5V0U2AX

SOT143B

2.9 x 1.3 x 1.0

2

1.8 pF

12 kV

Application guide: ESD protection

13

4. Serial buses

4.2 Legacy: SPI/SSIThe Serial Peripheral Interface (SPI), also known as the
Synchronous Serial Interface (SSI), is a synchronous serial
data link that has devices communicate in master/slavemode. Common clock frequencies are in the range of 10
kHz to 100 MHz.
SPI protection might be required if a connection goes offboard or is routed through a connector. For low-frequency
operation, basic single-ended protection schemes may
suffice, but, given the upper limit of bus frequencies, railto-rail implementations are a better match for universal
protection.


 




 







 




   

SPI protection showing a single device with a four-line, rail-to-rail diodeSelection guidePart

Package

NUP1301

Size (mm)No. of Lines

ESD robustness(IEC61000-4-2)

Cd

SOT23

2.9 x 1.3 x 1.0

10.75 pF

30 kV

NUP1301U

SOT323IP4220CZ6SOT4572.0 x 1.25 x 0.95

10.75 pF

30 kV

2.9 x 1.5 x 1.0

4

1 pF

8 kV

IP4221CZ6-S

DFN1410-6

1.45 x 1.0 x 0.48

4

1 pF

8 kV

PRTR5V0U4Y

SOT3632.0 x 1.25 x 0.95

4

1 pF

8 kV

PRTR5V0U2X

SOT143B

2.9 x 1.3 x 1.0

2

1 pF

8 kV

PRTR5V0U2F

DFN1410-6

1.45 x 1.0 x 0.48

2

1 pF

8 kV

PRTR5V0U2AX

SOT143B

2.9 x 1.3 x 1.0

2

1.8 pF

12 kV

Application guide: ESD protection

14

4. Serial buses

4.3 Legacy: RS-232 and RS-485
Nexperia offers several devices that are well suited forprotection of RS-485 or RS-232 interfaces.

Unidirectional protection

The figure shows unidirectional protection with the
PESD15VS2UT, and bidirectional protection with the
PESD12LV2BT. An additional serial resistor can be used tofurther limit currents entering the transceiver.

Bidirectional protection

Transceiver

TransceiverStandard serial port, RS-485, or RS-232 protection can be either unidirectional or bidirectional

Selection guidePart

Package

Size (mm)No. of Lines

ESD robustness(IEC61000-4-2)

VRWM

PESD15VS2UT

SOT23

2.9 x 1.3 x 1.0

2 unidirectional / 1 bidirectional

15 V

30 kV

PESD12VL2BT

SOT23

2.9 x 1.3 x 1.0

2 bidirectional

12 V

30 kV

Application guide: ESD protection

15

 

 







 

4. Serial buses



 

   

 



 

4.4 USB2.0 and USB OTG
The USB 2.0 standard features a maximum signaling rate of
480 Mbit/s with an effective throughput of up to 35 MByte/s
or 280 Mbit/s. USB 2.0 is a mainstream interface in today’s
electronic systems and is one of the most common interfaces
used in microcontrollers.

 

 












 



 

   







 




 

  The figure shows two basic protection setups, one for USB
2.0, and another optimized for USB On-The-Go (OTG).
Dual-port implementations are commonly found in(embedded) computing designs. Devices with protection
optimized specifically for USB 2.0, such as the IP4220CZ6and PUSB2X4Y, are perfect fits for protecting dual-port
implementations.
Since OTG implementations are often portable, they tend tobe smaller, so a single-chip solution for protecting the Vbus,
such as the PUSBMxx4-TL, is an ideal choice.

 



 



USB 2.0 and USB OTG ESD protection








 




 

 Selection guidePart 



Package

Size (mm)ESD robustness(IEC61000-4-2)

Cd

Note

PUSB2X4Y

SOT3632.0 x 1.25 x 0.95

0.55 pF

12 kV

PUSB2X4D

SOT457

2.9 x 1.5 x 1.0

0.55 pF

12 kV

4 lines, ultra-low clamping
4 lines, ultra-low clamping

PUSBMxxVX4-TL

DFN1616-6

1.6 x 1.6 x 0.5

0.8 pF

8 kV

Add Vbus protection for USB OTG & charging

PESD5V0X1ULDDFN1006D-2

1.0 x 0.6 x 0.37

0.95 pF

8 kV

1 line, unidirectional

IP4220CZ6SOT457

2.9 x 1.5 x 1.0

1 pF

8 kV

4 lines

IP4221CZ6-S

DFN1410-6

1.45 x 1.0 x 0.48

1 pF

8 kV

IP4220 with smaller package

PRTR5V0U4D

SOT457

2.9 x 1.5 x 1.0

1 pF

8 kV

4 lines, AEC-Q101 qualified

IP3319CX6WLCSP61.35 x 0.95 x 0.57

1.5 pF

15 kV

Common mode filter + ESD protection (1 line pair CMF + 1 line pair ESD protection)

PESD5V0X2UAM

SOT883

1.0 x 0.6 x 0.48

0.8 pF

15 kV

2 lines, unidirectional

Application guide: ESD protection

16

TrEOS Protection
ESD protection
without compromise

A new technology delivering the ideal combination of low capacitance, high ESD
robustness and low clamping voltage. Supporting high-speed data lines includingUSB3.1 at 10 Gbps. Protecting very sensitive system chips.
Safeguard your system now and in the future with TrEOS Protection devices –from Nexperia, the global leader in ESD protection.
More information on the following pages and www.nexperia.com/protection

4. Serial buses

4.5 High data-rate: USB 3.1

PUSB3FR4The USB 3.1 standard features a signaling speed of up
to 10 Gbit/s. Communication is full-duplex.
The ultra-high speed, combined with controlled impedancerouting, makes it a challenge to implement decent ESD
protection without significantly impacting overall signal
integrity.
Nexperia offers a variety of protection devices specificallydesigned for ultra high-speed interfaces. For USB 3.1,
Nexperia’s latest offer is based on the PUSB3FR4. Its
excellent clamping performance, combined with ultra-low
and well-matched capacitance, makes it an ideal fit for USB
3.1 protection.

PUSB3FR4

USB 3.1 ESD protection

Selection guidePart

Package

Size (mm)ESD robustness(IEC61000-4-2)

Cd

Note

PUSB3AB4

DFN2510A-10

2.5 x 1.0 x 0.5<0.2 pF

15 kV

2 channels / 4 lines TrEOS Protection

PUSB3AB6

DFN2111-7

2.1 x 1.1 x 0.5

0.15 pF

15 kV

3 channels / 6 lines TrEOS Protection

PUSB3FR4

DFN2510A-10

2.5 x 1.0 x 0.5

0.29 pF

15 kV

2 channels / 4 lines TrEOS Protection

PUSB3FR6

DFN2111-7

2.1 x 1.1 x 0.5

0.35 pF

15 kV

3 channels / 6 lines TrEOS Protection

PUSB3F96

DFN2510A-10

2.5 x 1.0 x 0.5

0.5 pF

10 kV

2 channels / 4 linesPESD5V0R1BSF

DSN0603-2

0.6 x 0.3 x 0.3

0.1 pF

10 kVSingle line bidirectional TrEOS Protection

PESD5V0H1BSF

DSN0603-2

0.6 x 0.3 x 0.3

0.15 pF

15 kVSingle line bidirectional TrEOS Protection

PESD5V0C1BSF

DSN0603-2

0.6 x 0.3 x 0.3

0.2 pF

20 kVSingle line bidirectional TrEOS Protection

PESD3V3Z1BSF

DSN0603-2

0.6 x 0.3 x 0.3

0.28 pF

20 kVSingle line bidirectional TrEOS Protection

PESD5V0C1USF

DSN0603-2

0.6 x 0.3 x 0.3

0.45 pF

20 kVSingle line unidirectional TrEOS Protection

PCMF1USB3WLCSP50.8 x 1.2 x 0.5

0.3 pF

15 kVSingle channel CMF + ESD TrEOS Protection

PCMF2USB3WLCSP10

1.6 x 1.2 x 0.5

0.3 pF

15 kV

Dual channel CMF + ESD TrEOS Protection

PCMF3USB3WLCSP15

2.4 x 1.2 x 0.5

0.3 pF

15 kV

Triple channel CMF + ESD TrEOS Protection

Application guide: ESD protection18

4. Serial buses

4.6 High data-rate: eSATA

eSATA connector

The eSATA standard is a variant of SATA, meant for external
connectivity. Having the ability to connect to the outside
world means ESD protection is strongly recommended for
eSATA.
With its ultra-low capacitance, pass through routing
package, and excellent clamping performance, thePUSB3FR4 is ideally suited for eSATA protection.

PUSB3FR4eSATA ESD protection using PUSB3FR4

Selection guidePart

Package

Size (mm)ESD robustness(IEC61000-4-2)

Cd

Note

PUSB3AB4

DFN2510A-10

2.5 x 1.0 x 0.5<0.2 pF

15 kV

2 channels/ 4 lines, 0.5 mm pitch package
TrEOS Protection

PUSB3FR4

DFN2510A-10

2.5 x 1.0 x 0.5

0.29 pF

15 kV

2 channels/ 4 lines, 0.5 mm pitch package
TrEOS Protection

PUSB3F96

DFN2510A-10

2.5 x 1.0 x 0.5

0.5 pF

10 kV

2 channels/ 4 lines, 0.5 mm pitch package

IP4285CZ10-TBB

DFN2110-9

2.1 x 1.0 x 0.5

0.8 pF

12 kV

2 channels/ 4 lines, 0.4 mm pitch package

Application guide: ESD protection19

4. Serial buses

4.7 High-speed differential mode
signaling (LVDS, CML, TMDS, etc.)
Our highly integrated companion ICs for HDMI offer
protection, level shift, LDO, buffering, and more. A single
device provides essentially all the interfacing needs for
HDMI. Our portfolio comprise dedicated solutions for HDMI
transmitters (IP4787CZ32) and HDMI receivers (IP4786CZ32).
The figure shows these devices with their basic connections.
With the exception of a small capacitor, no other external
device is needed.

TP cable
Cable
TX+
TX-

RX+
RX-

RX+
RX-

TX+
TX-

PUSB3FR4

PUSB3FR4

Nexperia also offers solutions for specific HDMI protection
subsets, such as applications where level shifting is already
implemented elsewhere. A dedicated protection solution canbe implemented using two PHDMI2F4 and a single PUSB2X4Y.
Some systems require enhanced filtering or noise removal.
For this, Nexperia offers common mode filters with built-in
ESD protection. Using two single PCMF2DFN2 devices, theHDMI TMDS channels can be protected against commonmode noise as well as ESD.

General high-speed differential mode signaling line ESD protection (actual data rate influences device choice)

Selection guidePart

Package

Size (mm)ESD robustness(IEC61000-4-2)

Cd

Note

PUSB3AB4

DFN2510A-10

2.5 x 1.0 x 0.5<0.2 pF

15 kV

2 channels/ 4 lines, 0.5 mm pitch package
TrEOS Protection

PUSB3FR4

DFN2510A-10

2.5 x 1.0 x 0.5

0.29 pF

15 kV

2 channels/ 4 lines, 0.5 mm pitch package
TrEOS Protection

PUSB3F96

DFN2510A-10

2.5 x 1.0 x 0.5

0.5 pF

10 kV

2 channels/ 4 lines

PESD1LVDSDFN2510-10

2.5 x 1.0 x 0.5

0.6 pF8 kV

0.6 pF Ch/Ch matching, AEC-Q101 qualified

IP4285CZ10-TBB

DFN2110-9

2.1 x 1.0 x 0.5

0.8 pF

12 kV

2 channels/ 4 lines

Application guide: ESD protection20

5. Display interfaces

5.1 HDMIHDMI type A
connector

Our highly integrated companion ICs for HDMI offer
protection, level shift, LDO, buffering, and more. A single
device provides essentially all the interfacing needs for
HDMI. Our portfolio comprise dedicated solutions for HDMI
transmitters (IP4787CZ32) and HDMI receivers (IP4786CZ32).
The figure shows these devices with their basic connections.
With the exception of a small capacitor, no other external
device is needed.
Nexperia also offers solutions for specific HDMI protection
subsets, such as applications where level shifting is already
implemented elsewhere. A dedicated protection solution canbe implemented using two PHDMI2F4 and a single PUSB2X4Y.
Some systems require enhanced filtering or noise removal.
For this, Nexperia offers common mode filters with built-in
ESD protection. Using two single PCMF2DFN2 devices, theHDMI TMDS channels can be protected against common
mode noise as well as ESD.

HDMI single-device ESD protection with level shift, showing IP4787CZ32 for receiver and IP4786CZ32 for transmitter
applications.

Selection guidePart

Package

Size (mm)ESD robustness(IEC61000-4-2)

Cd

Note

PHDMI2F4

DFN2510A-10

2.5 x 1.0 x 0.5

0.5 pF

10 kV

2 channel high-speed TMDS line protection, 0.5 pF

PCMF2DFN2

DFN2520-9

2.5 x 2.0 x 0.5

0.6 pF

15 kV

2 channel common mode filter + ESD

IP4786CZ32

DFN5050-32

5.0 x 5.0 x 0.85

0.6 pF

8 kV

TX, single-chip HDMI companion

IP4788CZ32DFN5050-32

5.0 x 5.0 x 0.85

0.6 pF

12 kV

TX, single chip HDMI companion, lower clamping

IP4786CZ32SDFN4040-32 (HXQFN32)

4.0 x 4.0 x 0.5

0.6 pF

8 kV

TX, single chip HDMI companion, smaller package

IP4787CZ32

DFN5050-32

5.0 x 5.0 x 0.85

0.6 pF

8 kV

RX, single-chip HDMI companion

PUSB2X4Y

SOT3632.0 x 1.25 x 0.95

0.8 pF

8 kV

DDC/ CEC/HPD protection, 0.8 pF

IP4285CZ10-TBB

DFN2110-9

2.1 x 1.0 x 0.5

0.8 pF

12 kV

2 channel high-speed TMDS line protection

Application guide: ESD protection21

5. Display interfaces

5.2 DisplayPort



With DisplayPort, the main link can have one, two, or four
differential data pairs or lanes. Each link has a raw bit rate of
1.62, 2.7, or 5.4 Gbit/s per lane, with the self-clock running at
162, 270, or 540 MHz. Using 8b/10b coding, the effective data
rate can reach a maximum of 4.32 Gbit/s per lane.



  

DisplayPort protection can be split between the high-speed
differential lanes and the much slower AUX channels. The
figure shows a straightforward implementation using the
PUSB3F96 and PUSB2X4Y.



    The PUSB3F96, with its ultra-low capacitance, excellent Cdmatching, and pass-through routing package layout, is a good
choice for implementing ESD protection on the high-speed
differential lines of DisplayPort.













 

DisplayPort ESD protection with high-speed lines protected with PUSB3F96 and low-speed lines with PUSB2X4Y

Selection guidePart

Package

Size (mm)ESD robustness(IEC61000-4-2)

Cd

Note

PUSB3FR4

DFN2510A-10

2.5 x 1.0 x 0.5

0.29 pF

15 kV

2 channels/ 4 lines TrEOS Protection

IP4292CZ10DFN2510A-10

2.5 x 1.0 x 0.5

0.45 pF

8 kV

2 channels / 4 lines

PHDMI2F4

DFN2510A-10

2.5 x 1.0 x 0.5

0.5 pF

10 kV

2 channels / 4 lines

PUSB3F96

DFN2510A-10

2.5 x 1.0 x 0.5

0.5 pF

10 kV

2 channels / 4 lines

PESD1LVDSDFN2510-10

2.5 x 1.0 x 0.5

0.6 pF8 kV

0.6 pF Ch/Ch matching, AEC-Q101 qualified

IP4285CZ10-TBB

DFN2110-9

2.1 x 1.0 x 0.5

0.8 pF

12 kV

2 channels / 4 lines

Application guide: ESD protection22

6. Ethernet

6.1 Ethernet ESD protection

ESD protection for Ethernet can typically be done in two
ways. Protection can be placed on the MAC/PHY side of
the interface or line-to-line protection can be added tothe connector side. For optimal protection, a design may
implement both schemes, as shown in the figure.







 



The figure at right shows a 100 Mbit interface that uses twopairs. A similar solution can be created for Gbit Ethernet,
using four pairs.











        

10/100 ESD protection, with ground-referred protection on the MAC side and Common mode protection
on the connector side

Selection guidePart

Package

Size (mm)ESD robustness(IEC61000-4-2)

Cd

Note

IP4233CZ6

SOT3632.0 x 1.25 x 0.95

0.9 pF

8 kV

Common mode protection

IP4220CZ6SOT457

2.9 x 1.5 x 1.0

1 pF

8 kV

1 port protection

IP4221CZ6-S

DFN1410-6

1.45 x 1.0 x 0.48

IP4221CZ6-XS

DFN1010-6 (XSON6)

1.0 x 1.0 x 0.48

1 pF

8 kV

IP4220 with smaller package

PRTR5V0U4D

SOT457

2.9 x 1.5 x 1.0

1 pF

8 kV

1 port protection, AEC-Q101 qualified

PESD5V0U1BA

SOD323

1.7 x 1.25 x 0.95

2.9 pF

10 kV

Common mode protection

Application guide: ESD protection

23

7. RF

7.1 GPS / GNSS
GPS applications are commonplace today. ESD can enter thesystem via the antenna. Protection of the sensitive receivercircuitry is often required.
Requirements for this type of protection are extremely
low capacitance and high linearity. Low clamping and highmaximum peak surge capability remain a key need as well.
The figure on the right shows a typical protection scheme
using the new, ultra-low-capacitance, bidirectional
PESD5V0R1BSF. This device comes in an ultra-small
DSN0603 package that further minimizes any resistive andinductive impedance.

Low Cap
bidir protection
PESD5V0R1BSF

RF
front end

Signalprocessing

GPS ESD protection using PESD5V0R1BSF

Selection guidePart

Package

Size (mm)ESD robustness(IEC61000-4-2)

Cd

Note

PESD5V0R1BSF

DSN0603-2

0.6 x 0.3 x 0.3

0.1 pF

10 kVSingle-line bidirectional TrEOS Protection

PESD5V0H1BSF

DSN0603-2

0.6 x 0.3 x 0.3

0.15 pF

15 kVSingle-line bidirectional TrEOS Protection

PESD5V0C1BSF

DSN0603-2

0.6 x 0.3 x 0.3

0.2 pF

20 kVSingle-line bidirectional TrEOS Protection

Application guide: ESD protection

24

7. RF

7.2 WLANWLAN is today’s de facto standard for wireless connectivity
in a multitude of applications. Dual-band is the mostcommonly found implementation. The figure on the rightshows a sample implementation with an ESD protection
device (PESD5V0R1BSF) to protect the sensitive RF circuitry
against ESD strikes entering via the antenna.

RFtranceiverIC

To maintain optimal RF performance, extremely low
capacitance and linearity for the ESD protection device arean absolute must. The table below shows a number of thelatest ultra-low-capacitance and clamping devices.

Low Cap
bidir protection
PESD5V0R1BSF

Dual-band WLAN ESD protection using PESD5V0R1BSF

Selection guidePart

Package

Size (mm)ESD robustness(IEC61000-4-2)

Cd

Note

PESD5V0R1BSF

DSN0603-2

0.6 x 0.3 x 0.3

0.1 pF

10 kVSingle-line bidirectional TrEOS Protection

PESD5V0H1BSF

DSN0603-2

0.6 x 0.3 x 0.3

0.15 pF

15 kVSingle-line bidirectional TrEOS Protection

PESD5V0C1BSF

DSN0603-2

0.6 x 0.3 x 0.3

0.2 pF

20 kVSingle-line bidirectional TrEOS Protection

Application guide: ESD protection25

NotesApplication guide: ESD protection26

© 2017 Nexperia B.V.
All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does
not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any
consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights.

nexperia.com

Date of release:
February 2017
Printed:In the Netherlands