PESD12VS1UA-Q

Unidirectional ESD protection for transient voltage
suppression
13 June 2022

Product data sheet

1. General description
Unidirectional ElectroStatic Discharge (ESD) protection diodes in a very small SOD323 SurfaceMounted Device (SMD) plastic package designed to protect one signal line from the damage
caused by ESD and transient overvoltage.

2. Features and benefits
••
•
•
•
•
•
•

Transient Voltage Suppression (TVS) protection of one line
Max. peak pulse power: PPP = 600 W
Low clamping voltage: VCL = 27 V
Low leakage current: IRM = 1 nA
ESD protection up to 30 kV
IEC 61000-4-2; level 4 (ESD)
IEC 61000-4-5 (surge); IPP = 22.5 A
Qualified according to AEC-Q101 and recommended for use in automotive applications

3. Applications
••
•
•
•
•

Computers and peripherals
Audio and video equipment
Cellular handsets and accessories
Communication systems
Portable electronics
Medical and industrial equipment

4. Quick reference data
Table 1. Quick reference data
SymbolParameter

Conditions

MinTypMax

Unit

VRWM

reverse standoff
voltage

Tamb = 25 °C--12VCd

diode capacitancef = 1 MHz; VR = 0 V; Tamb = 25 °C-160

180pF

PESD12VS1UA-Q

Nexperia

Unidirectional ESD protection for transient voltage suppression

5. Pinning information
Table 2. Pinning information
PinSymbol
Description
1K1

cathode 1[1]

2

A

anode

Simplified outline
1Graphic symbol
2

SOD323[1]AK006aaa152

The marking band indicates the cathode6. Ordering information
Table 3. Ordering information
Type number
Package
PESD12VS1UA-Q

NameDescription

Version

SOD323plastic, surface-mounted package; 2 leads; 1.3 mm pitch;
1.7 mm x 1.25 mm x 0.95 mm body

SOD3237. Marking
Table 4. Marking codes
Type numberMarking code

PESD12VS1UA-Q

AWPESD12VS1UA-Q

Product data sheet

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Unidirectional ESD protection for transient voltage suppression

8. Limiting values
Table 5. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
SymbolParameter

Conditions

PPPM

rated peak pulse power

tp = 8/20 µs

IPPM

rated peak pulse current

Ptot

total power dissipation

Tamb ≤ 25 °CMinMaxUnit[1] [2]-600W

[1] [2]-

22.5

A

[3]-

360mW

[4]-500mW

Tj

junction temperature-150°C

Tambambient temperature-55150°C

Tstg

storage temperature

-65

150°C

-30kV

IEC 61000-4-2; air discharge-15kV

machine model; Tamb = 25 °C

-400

V

MIL-STD-883 (human body model);Tamb = 25 °C-16kV

ESD maximum ratings
VESD

[1]
[2][3][4][5]electrostatic discharge
voltage

IEC 61000-4-2; contact discharge;
Tamb = 25 °C[5]Non-repetitive current pulse 8/20 μs exponential decay waveform according to IEC 61000-4-5.
Soldering point of cathode tab.
Device mounted on an FR4 Printed-Circuit Board (PCB), single-sided copper, tin-plated and standard footprint.
2Device mounted on an FR4 PCB, single-sided copper, tin-plated, mounting pad for cathode 1 cm .
Device stressed with ten non-repetitive ESD pulses
001aaa630

120IPP100 %100 % IPP; 8 µs

IPP(%)
80

90 %e-t
50 % IPP; 20 µs

40

10 %0Fig. 1.

0102030t (µs)

8/20 µs pulse waveform according toIEC 61000-4-5

PESD12VS1UA-Q

Product data sheett

tr = 0.6 ns to 1 ns4030 ns
60 nsFig. 2.

ESD pulse waveform according toIEC 61000-4-2

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Nexperia

Unidirectional ESD protection for transient voltage suppression

9. Thermal characteristics
Table 6. Thermal characteristics
SymbolParameter
Rth(j-a)Rth(j-sp)[1][2][3]Conditions

MinTypMax

Unit

thermal resistance from in free air
junction to ambient[1]--345

K/W

[2]

--250

K/W

thermal resistance fromjunction to solder point[3]--90

K/W

Device mounted on an FR4 PCB, single-sided copper, tin-plated and standard footprint.
2
Device mounted on an FR4 PCB, single-sided copper, tin-plated, mounting pad for cathode 1 cm .
Soldering point of cathode tab.

10. Characteristics
Table 7. Characteristics
SymbolParameter

Conditions

MinTypMax

Unit

VRWM

reverse standoff
voltage

Tamb = 25 °C--12V

VBR

breakdown voltage

IR = 5 mA; Tamb = 25 °C

13.3

14.5

15.75

VIRM

reverse leakage current VRWM = 12 V; Tamb = 25 °C-1100nACd

diode capacitancef = 1 MHz; VR = 0 V; Tamb = 25 °C

-160

180pF

VCL

clamping voltage

IPPM = 22.5 A; Tamb = 25 °C[1]--27V

IPP = 15 A; Tamb = 25 °C

[1]--

23.5

V

IPP = 5 A; Tamb = 25 °C

[1]--

19V

-

5100

ΩRdiff[1]

differential resistanceIR = 5 mA; Tamb = 25 °C

Non-repetitive current pulse 8/20 μs exponential decay waveform according to IEC 61000-4-5.
aaa-034659

104PPPP PP(W)

PPP(25°C)

103

0.8

102

0.4

101
101

102

103

tp (µs)0104

Tamb = 25 °C
Fig. 3.

001aaa193

1.2

Peak pulse power as a function of exponential
pulse duration; typical values

PESD12VS1UA-Q

Product data sheet

Fig. 4.

0100

150

Tj (°C)

200

Relative variation of peak pulse power as afunction of junction temperature; typical values

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Nexperia

Unidirectional ESD protection for transient voltage suppression
aaa-034660

500

aaa-034661

103Cd(pF)

IRM
(nA)

400

102300
10200
1100

00

48VR (V)

10-1-75

12f = 1 MHz; Tamb = 25 °C
Fig. 5.

Fig. 6.

Diode capacitance as a function of reverse
voltage; typical values-252575

125
175
T amb (°C)

Reverse leakage current as a function ofambient temperature; typical values

IV-VCL -VBR -VRWM-IRM-IR-+P-N-IPP
006aaa407

Fig. 7.

V-I characteristics for a unidirectional ESD protection diodePESD12VS1UA-Q

Product data sheet

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PESD12VS1UA-Q

Nexperia

Unidirectional ESD protection for transient voltage suppression
ESD TESTER
acc. to IEC 61000-4-2
CZ = 150 pF; R Z

4 GHz DIGITALOSCILLOSCOPE
RG 223/U

RZ

10 x
ATTENUATOR

CZ

DUT(DEVICEUNDERTEST)

vertical scale = 10 A/div
horizontal scale = 15 ns/div

vertical scale = 10 V/divhorizontal scale = 10 ns/div

GND

clamped +8 kV ESD pulse waveform(IEC 61000-4-2 network)

unclamped +8 kV ESD pulse waveform(IEC 61000-4-2 network)

vertical scale = 10 V/div
horizontal scale = 10 ns/div

vertical scale = 10 A/div
horizontal scale = 15 ns/div
GND

unclamped -8 kV ESD pulse waveform(IEC 61000-4-2 network)

Fig. 8.

clamped -8 kV ESD pulse waveform(IEC 61000-4-2 network)

aaa-034662

ESD clamping test setup and waveforms

PESD12VS1UA-Q

Product data sheet

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Nexperia

Unidirectional ESD protection for transient voltage suppression

11. Application information
The device is designed for protection of one unidirectional data or signal line from surge pulses
and ESD damage. The device is suitable on lines where the signal polarities are either positive or
negative with respect to ground.
line to be protected(positive signal polarity)

line to be protected(negative signal polarity)

ESD protection diodeESD protection diode

GNDGNDunidirectional protection of one line
aaa-002440

Fig. 9.

Application diagram
Circuit board layout and protection device placement
Circuit board layout is critical for the suppression of ESD, Electrical Fast Transient (EFT) and surgetransients. The following guidelines are recommended:
1.
2.
3.
4.
5.
6.
7.
8.

Place the device as close to the input terminal or connector as possible.
Minimize the path length between the device and the protected line.
Keep parallel signal paths to a minimum.
Avoid running protected conductors in parallel with unprotected conductors.
Minimize all Printed-Circuit Board (PCB) conductive loops including power and ground loops.
Minimize the length of the transient return path to ground.
Avoid using shared transient return paths to a common ground point.
Use ground planes whenever possible. For multilayer PCBs, use ground vias.

12. Test information
Quality information
This product has been qualified in accordance with the Automotive Electronics Council (AEC)
standard Q101 - Stress test qualification for discrete semiconductors, and is suitable for use inautomotive applications.

PESD12VS1UA-Q

Product data sheet

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Nexperia

Unidirectional ESD protection for transient voltage suppression

13. Package outline
Plastic surface-mounted package; 2 leads

SOD323A

DEXv M A

HD

1Q

2bp

A

A1(1)

c

detail X

01

Lp

2 mmscale
DIMENSIONS (mm are the original dimensions)
UNITA

A1max

bp

cDEHD

LpQv

mm

1.1
0.8

0.05

0.40
0.25

0.25
0.10

1.8
1.6

1.35
1.15

2.7
2.3

0.45
0.150.25
0.15

0.2

Note
1. The marking bar indicates the cathodeOUTLINE
VERSION

REFERENCES
IEC

SOD323

JEDEC

JEITA
SC-76

EUROPEAN
PROJECTION

ISSUE DATE
03-12-17
06-03-16

Fig. 10. Package outline SOD323

PESD12VS1UA-Q

Product data sheet

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Nexperia

Unidirectional ESD protection for transient voltage suppression

14. Soldering
3.05
2.1
solder lands
solder resist
1.65 0.95

0.5 (2×)

0.6 (2×)solder paste
occupied area

2.2

Dimensions in mm

0.5(2×)0.6(2×)sod323_fr

Fig. 11. Reflow soldering footprint for SOD323
52.9
1.5 (2×)solder lands
solder resist
occupied area

1.2
2.75
(2×)

Dimensions in mm
preferred transport
direction during soldering

sod323_fw

Fig. 12. Wave soldering footprint for SOD323

PESD12VS1UA-Q

Product data sheet

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NexperiaUnidirectional ESD protection for transient voltage suppression

15. Revision history
Table 8. Revision history
Data sheet ID
Release date

Data sheet status

Change notice

Supersedes

PESD12VS1UA-Q v.1

Product data sheet--

PESD12VS1UA-Q

Product data sheet

20220613

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Nexperia

Unidirectional ESD protection for transient voltage suppression
equipment, nor in applications where failure or malfunction of an Nexperia
product can reasonably be expected to result in personal injury, death orsevere property or environmental damage. Nexperia and its suppliers accept
no liability for inclusion and/or use of Nexperia products in such equipment orapplications and therefore such inclusion and/or use is at the customer's own
risk.

16. Legal information
Data sheet status
Document status[1][2]

Productstatus [3]Definition

Quick reference data — The Quick reference data is an extract of theproduct data given in the Limiting values and Characteristics sections of thisdocument, and as such is not complete, exhaustive or legally binding.

Objective [short]data sheet

Development

This document contains data fromthe objective specification for
product development.

Preliminary [short]data sheet

Qualification

This document contains data fromthe preliminary specification.

Applications — Applications that are described herein for any of theseproducts are for illustrative purposes only. Nexperia makes no representation
or warranty that such applications will be suitable for the specified use
without further testing or modification.

Product [short]data sheet

Production

This document contains the productspecification.

[1]
[2]
[3]

Please consult the most recently issued document before initiating orcompleting a design.
The term 'short data sheet' is explained in section "Definitions".
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Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above thosegiven in the Recommended operating conditions section (if present) or theCharacteristics sections of this document is not warranted. Constant or
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Suitability for use in automotive applications — This Nexperia producthas been qualified for use in automotive applications. Unless otherwise
agreed in writing, the product is not designed, authorized or warranted tobe suitable for use in life support, life-critical or safety-critical systems orPESD12VS1UA-Q

Product data sheet

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Unidirectional ESD protection for transient voltage suppression

Contents
1. General description...................................................... 1
2. Features and benefits.................................................. 1
3. Applications.................................................................. 1
4. Quick reference data....................................................1
5. Pinning information......................................................2
6. Ordering information....................................................2
7. Marking.......................................................................... 28. Limiting values............................................................. 3
9. Thermal characteristics............................................... 4
10. Characteristics............................................................ 4
11. Application information..............................................712. Test information..........................................................713. Package outline.......................................................... 8
14. Soldering..................................................................... 9
15. Revision history........................................................10
16. Legal information......................................................11© Nexperia B.V. 2022. All rights reserved

For more information, please visit: http://www.nexperia.com
For sales office addresses, please send an email to: salesaddresses@nexperia.com
Date of release: 13 June 2022

PESD12VS1UA-Q

Product data sheet

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