EV Charging SolutionsSupercharged Solutions to Enhance
Safety, Efficiency, and Reliability
EV Infrastructure

1

Types of electric vehicle charging stations
AC Level 1*

AC Level 2*

DC Fast Charger*

Wireless Chargerǂ

Basic homeinstallation

Home and public
installation

Public and commercial
installation

Home and public
installation(Mode 1 or Mode 2)**(Mode 3)**(Mode 4)**

Voltage
120 V AC, 1-phase
250 V AC, 1-phase
480 V AC, 3-phase

Voltage
208 V–240 V AC, 1-phase
250 V AC, 1-phase
480 V AC, 3-phase

Voltage
380 V–600 V AC, 3-phase

Power levels
WPT1 − 3.7 kW
WPT2 − 7.7 kW
WPT3 − 11 kW

Current rating
12 A–16 A (32 A for 3-phase)

Current rating
12 A–80 A

Current rating
DC output (up to 400 A)

Grid to battery efficiency
94% at a 10″ ground clearance

Charging time
8–12 hours***

Charging time
4–6 hours***

Charging time
30 mins***

Vehicle ground clearance
100−250 mm (3.9″ to 9.8″)* As defined by SAE J1772
ǂ As defined by SAE J2954** As defined by IEC 61851-1*** Charge time dependent on vehicle’s battery capacity and charge acceptance rate

Littelfuse, Inc. © 2021

2

Global electric vehicle charging equipment market
Increasing production of electrified vehicles: estimated 6 million vehicles in2019 growing to 40 million vehicles in 2025  need for higher efficiency
7.3 million chargers are active across the world (as of 2019), of which, nearly
6.5 million are private chargers, 0.6 million are public slow chargers, and 0.26
million are public fast chargers
Currently, more than 70% of the charging is done at home. Convenience, costefficient, and a variety of support policies are the main driving.
Majority of charging to occur at home or workplace during a span of several
hours (AC charging)  bidirectional topologies is needed for smart grid

Rapid growth of EV Charging at ~36% CAGR
50
Million units

Market trends and drivers

40
30
20
10
0
2019

2020

2021

2022

2023

2024

2025

EV charging equipment, by type, in 2019

Limited charging grid capacity in most regions  Emergence of combo
ESS+PV with DC charger

2%

1%

7%

Increasing voltage and power output of DC chargers
for fast charging  500 V to 800 V
Low-power DC charging solution in residential/campus will replace the AC
charging solution to make charging faster (20 kW DC versus 7 kW AC)
DC charger create a need for improved safety and additional components, suchas advanced liquid-cooled cables, substations, and energy storage systems

90%

AC Level 1

AC Level 2

DC Charging

Wireless Charging

Source: IEA Report Global EV Outlook 2020; DC Fast Charging; Modor Intelligence;
Statista Report; Littelfuse estimates
Littelfuse, Inc. © 20213

AC charging station
1

Service Access Panel4

 Reed Sensor

 TVS Diode Array Polymer ESD Suppressor

124Input Protection5

 Fuse MOV
 GDT
 TVS Diode5

2
3

User Interface

6

Auxiliary Power Supply

Communication

 TVS Diode Array Reed Relay

6

Charging Plug

 Temperature Sensor
 Reed Sensor

 PPTC Schottky Diode SIDACtor® + MOV
37

7

AC Relays/Contactor

 Contactors & Relays

Littelfuse, Inc. © 2021

4

Click on the product series inthe table below for more info

AC charger functional block diagram
AC
input

1
Power
distribution
unit

7

Input
protection

Technology

Product

High-current Fuse
(Primary protection)

606, 607

Surge protection(Primary protection)

SPD Type 2

Fast-acting or Time lag Fuse
(Secondary protection)

314, 324, 215

Metal-Oxide Varistor

TMOV, UltraMOV, Xtreme

Gas Discharge Tube

CG2, CG3TVS DiodeAK6, 1.5SMC

PPTC

LVR**

Schottky Diode

DST, DSA, DSB

SIDACtor + MOV

Pxxx0FNL + UltraMOVTVS Diode Array

AQ24CAN, SM712

Reed Relay

HE3600

4

TVS Diode Array
Polymer ESD

SP1026
XGD10402

5

Reed Sensor

59060, 59045

Temperature Sensor

PPG, USW,
Glass Coated Thermistor

Reed Sensor

59060, 59045

Contactors or
RelaysHCC 1 & 2 Pole,HCC 3 & 4 Pole, HCD, or
SCO1*, SCO2*

AC output

AC relays/
contactors

OutputCurrent
sensor1
2

6

Auxiliary
power supply

Controllers

3
Communication

Wireless

Charging plug
position/temp

4
User interfaces

5

2

Access panel
sensors3

CAN Bus
Legend:
Power
Data

6

•

*Please contact Littelfuse sales for more details**Only used in case of Linear transformer
Note: Other Littelfuse solutions may be suitable depending on design-specific requirements

7

Littelfuse, Inc. © 2021

5

Click on the product series inthe table below for more info

Features and benefits of Littelfuse solutions
Technology

1High-current Fuse
(Primary Protection)
Surge protection(Primary protection)
Fast-acting Fuse
(Secondary Protection)MOV
GDT
TVS Diode
PPTC

2

Function in application
Primary over-current protection of EV
equipment

Product series
606, 607

Protects from power fluctuations or surges

SPD Type 2

Overcurrent protection of auxiliary power
supply314, 324, 215

GDT in series with TMOV protects theauxiliary power supply unit from voltage
transients induced by lightning
Protects power line from transient surgetransient
Protected linear transformers from damages
due to mech overloads, overheating, etc.

TMOV, UltraMOV, Xtreme
CG2, CG3
AK6, 1.5SMC
LVR

Schottky Diode

Used for rectification

SIDACtor + MOV

Enhancing surge protection for auxiliary
power supply

Pxxx0FNL + UltraMOVTVS Diode Array

Protects CAN, Ethernet, RS-485 bus from
ESD, EFT, and voltage transient

AQ24CAN, SM712

Reed Relay

Low power switching with up to 2500 V
isolation

HE3600

4

TVS Diode Array
Polymer ESD

Protects ICs from ESD through display

SP1026
XGD10402

5

Reed Sensor

Access panel for position sensing

59060, 59045

Temperature Sensor

DC contacts hotspot detection

PPG, USW,
Glass Coated Thermistor

Reed Sensor

Charging plug position sensing

59060, 59045

Contactors or
RelaysSafety cutoff on the grid (power network) toprevent abnormal current supply.

3

6
7

DST, DSA, DSB

HCC 1 & 2 Pole,HCC 3 & 4 Pole, HCD,
SCO1, SCO2

Benefits

Features

Rated voltage @ 500 VAC; 40−63 A rating available;
Enables robust yet compact design; can operate insmall footprint
extreme temperature environment
Withstands high-energy transients to prevent
20 kA nominal interrupting rating and 50 kA maximum
disruption, downtime, and degradationinterrupting rating
Reduces customer qualification time by complying with In accordance with UL Standard 248-14; available incartridge and axial lead format
third-party safety standards such as UL/IEC
Reduces customer qualification time by complying with High energy absorption capability:
40–530 J (2 ms); integrated thermal protection
third-party safety standards such as UL/IEC
High energy absorption capability;
Small form-factor allows for compact
small form-factor; low leakage current
system design
Good clamping and fast response time forHigh power TVS 8/20 µs rating from 1−20 kA in axialhigh-energy transient protection
lead or SMT form factor
Fast time to trip; offers boards space savings; reduces Line voltage ratings of 120 and 240 VAC; lowresistance; holding current up to 2 A; compact size
customer qual time by complying with UL/IEC
High surge capability; negligible reverse recovery
Reduces switching losses; increases systemcurrent; Tj = 175 °C
efficiency, reliability and thermal management
Good clamping and fast response time for
3 kA, 8/20 µs surge capability to help protect AC lines
high-energy transient protection
from harmful transient surges.
Meets ESD protection levels specified under IEC 61000Ensures reliability of the equipment without
4-2; ISO10605; low leakage current and clamping
performance degradation
voltageLow power consumption; galvanic isolation;
Miniature single in-line package; external magnetic
immune to environmental effects
shield option
Smaller form-factor and multi-line protection enables SP1026 has high ESD robustness for touchpads;
ease of design
XGD10402 has ultra-low capacitance for I/O
Well suited for usage in high-moisture andRobust in end application; mount directly into PCB;
contaminated environments; molded stand-off to allow
no standby power requirement
board washingLinear relationship between temp and resistance; temp
Offers high accuracy; high reliability;
range -50 °C to +500 °C
excellent stability at high temperatures
Robust design; well suited for usage in high-moisture Hermetically sealed, magnetically operated contacts;
certified tor use in NA and Europe
and contaminated environment
Predetermined life cycle for application to minimize
Long electrical life; High surge capability; Certified for
cost; high electrical and thermal conductivity; gooduse in North America, Europe and Asia
resistance to oxidation for longer life
Low heat generation and low coil power consumption;
PCB mount capable; higher flexibility for designers;
performance to meet regulatory UL/IEC compliancecompact design;
Littelfuse, Inc. © 2021

6

DC charging station
1

Service Access Panel

61

 Reed Sensor

Power Distribution Unit

 Fuse62

User Interface

 TVS Diode Array Polymer ESD Suppressor
3

7

2
7

Communication

8

 TVS Diode Array

3

Input Protection

 Fuse Surge Protection Device
 TVS Diode Current Transformer
 AC Earth Fault Relay

10
4

Rectification & PFC

8

 SiC/Si MOSFET Rectifier Diode/Module
 Gate Driver Temperature Sensor
5 DC Fuse HVDC Contactor
 Earth Fault Relay

4

5

Rectification & PFC

 SiC/Si MOSFET Rectifier Diode/Module
 Gate Driver Temperature Sensor

9
9

10

DC Output Protection

Charging Plug

 Temperature Sensor
 Reed Sensor

Auxiliary Power Supply

 Fuse MOV, GDT, SIDACtor® + MOV
 Si MOSFET Rectifier Diode
Littelfuse, Inc. © 2021

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Click on the product series inthe table below for more info

DC charger functional block diagram
Rectifier & power
factor correction
AC
input

1
Power
distribution
unit

4

2
Bridgeless,vienna orboost stage

Input
protection

3
Auxiliary
power supply

Current andvoltagemonitoring

High-Frequency
converter

8

Full bridge,
resonant

Gate drivers

Overload&
short-circuit
protection

9

5

1

DC output10
Output2

11
DC earth-fault
protection

Gate drivers

6

3
12
Charging Plug
Position/Temp

Controllers

7
AC earth-fault
protection
Wireless

13
Communication

14
User interfaces

15
Access panel
sensors

CAN Bus
Note: Power converter topologies may differ based on
design-specific requirements.
* Please contact Littelfuse Associates for details

Legend:
Power
Data

4

Technology

Product

AC Fuse (PDU level)

JLLS, JLLN

Overcurrent protection(Primary protection)

PSR, L50QS, L75QS

Surge protection(Primary protection)

SPD Type 2

Fuse +Fuse Holder (optional)

LVSP + LPSM

AC Contactor

HCD

AC RelaySC0x*

Si MOSFET

PolarTM

Rectifier and Schottky Diode

DMA, DST, DSA, DSB

AC Fuse(Secondary protection)

606, 607, 505

Metal-Oxide Varistor

UltraMOV, Xtreme

Gas Discharge Tube

CG2, CG3

SIDACtor + MOV

Pxxx0FNL + UltraMOV

Rectifier Diode
Rectifier Module
SiC/Si MOSFET/
Discrete IGBTDMA
MDD, VUO, MDNA
LSIC1MO/X2-Class/XPT

Diode

LSIC2SD, DHG, DSEI

Temperature Sensor

USUR1000, KC

5Gate Driver

IXDN609, IX4351NE

6

Current Transformer

SE-CS30

7AC Earth-Fault Relay

SE-704
Littelfuse, Inc. © 2021

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Click on the product series inthe table below for more info

Features and benefits of Littelfuse solutions
1

2

Technology

Function in application

Product series

AC Fuse(PDU Level)
Overcurrent protection(Primary protection)
Surge protection(Primary protection)

Provide fast-acting overload and short circuit
protection.

JLLS, JLLN

Fuse + Fuse holder
AC Contactor
AC Relay
Si MOSFET

3

SPD Type 2

Surge suppression fuse (+ fuse holder)intended to protect SPDsLVSP + LPSM

Safety cutoff on the grid (power network) toprevent abnormal current supply

High-speed switching
Provides output rectification in auxiliary
power supply
Overcurrent protection of auxiliary
power supply

MOV

GDT in series with TMOV protects theauxiliary power supply unit from voltage
transients induced by lightning

SIDACtor + MOV
Rectifier Diode
Rectifier Module
SiC/Si MOSFET/
Discrete IGBT
Diode
Temperature Sensor

5Gate Driver

6

Current Transformer

7

AC Earth-Fault Relay

PSR, L50QS, L75QS

Protects from power fluctuations or surges

Rectifier and Schottky
Diode
AC Fuse(Secondary protection

GDT

4Protects semiconductor devices

Enhancing surge protection for auxiliary
power supply
Converts AC line voltage supplied to thedrive to DC
Boost converter for high-frequency switchingin the PFC circuit

HCD
SC0x*
PolarTM
DMA, DST, DSA, DSB
606, 607, 505

UltraMOV, Xtreme
CG2, CG3
Pxxx0FNL + UltraMOVDMA
MDD, VUO, MDNA

Benefits

Features

Reduces damage to equipment caused by heating and Extremely current-limiting; Small footprint
200 kA interrupting rating
magnetic effects of short circuit currents;
Lower I2t performance allows for quick response to
550–1300 VAC, 500–1000 VDC, 40–2000 A
protect devices from higher heat energy
Withstands high-energy transients to prevent disruption, 20 kA nominal interrupting rating and 50 kA maximum
downtime, and degradationinterrupting rating
Very current limiting under AC short-circuit conditions; Survive the 8 x 20 µs lightning surges
available in multiple mounting configs
described in various UL /IEC standards
Long electrical life; High surge capability; Certified foruse in North America, Europe and Asia
Low heat generation and low coil power consumption;
performance to meet regulatory UL/IEC compliance
Low RDS(ON) and Qg; avalanche rated; international
Easy to mount; space-savings; high power density
standard packages; low package inductanceLow forward voltage drop; high-frequency operation;
Improves power supply unit efficiency
high junction temperature
Reduces customer qualification time by complying with In accordance with UL Standard 248-14;
available in cartridge and axial lead format
third-party safety standards such as UL/IEC
Reduces customer qualification time by complying with High energy absorption capability:
40–530 J (2 ms); integrated thermal protection
third-party safety standards such as UL/IEC
High energy absorption capability;
Small form-factor allows for compact system design
small form-factor; low leakage current
Good clamping and fast response time for
3 kA, 8/20 µs surge capability to help protect AC lines
high-energy transient protection
from harmful transient surges.
Small footprint; multiple package options
Low leakage current and forward voltage drop; improved(high voltage, isolated, and standard packages)
thermal behavior; high robustness
Package with DCB ceramic; very low forward voltage
Compact design, better electrical isolations
drop and low leakage current
Predetermined life cycle for application to minimize
cost; high electrical and thermal conductivity;
PCB mount capable; higher flexibility for designers;
compact design

LSIC1MO/X2-Class/XPT

Optimized for high-frequency applications

Ultra-low output capacitance and on-resistance

Temp sensing for semiconductors

LSIC2SD, DHG, DSEIUSUR1000, KC

Controls the switching MOSFETs/IGBTs

IXDN609, IX4351NE

Reduces switching losses; increases efficiency
Rapid thermal response and long-time reliability
Quick turn-on and turn-off of MOSFETs/IGBTs;
eliminates the need for separate supply
Specifically designed for low level detection;
flux conditioner is included to prevent saturation
No calibration; low level protection and systemcoordination; low maintenanceHigh surge capability; negligible IRR; Tj 175 °C
UL recognized; temperature range: -40−125 °C
9 A peak current; low propagation delay time;
low output impedance

SE-CS30
Offers ground-fault detection and protection
SE-704

Turns ratio 600:1 and current rating 30:0.05 A
Microprocessor-based; adjustable pickup (10 mA-5 A);
Adjustable time delay (30 ms−2 s)Littelfuse, Inc. © 2021

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Click on the product series inthe table below for more info

DC charger functional block diagram
Rectifier & power
factor correction
AC
input

1
Power
distribution
unit

4

2

High-Frequency
converter

Bridgeless,vienna orboost stage

Input
protection

Technology

Product

SiC or Si MOSFETLSIC1MO, X-Class,
X2-Class, HiPerFETTM

Diode

LSIC2SD, DHG,
DSEI

Temperature Sensor

USUR1000, KC

Gate Driver

IXDN609, IX4351NE

DC Fuse

PSR, SFPJ

Diode

DMA, DHG, DSEIHV DC Contactor

DCNxx

DC Earth-Fault Relay

SE-601

Earth Reference Module

SE-GRM

Temperature Sensor

PPG, USW,
Glass Coated Thermistor,

Reed Sensor

59060, 59045

13

TVS Diode Array

AQ24CAN, SM712

14

TVS Diode Array
Polymer ESD

SP1026
XGD10402

15

Reed Sensor

59060, 59045

DC output

8

Full bridge,
resonant

Overload&
short-circuit
protection

10
Output8

9
3
Auxiliary
power supply

Current andvoltagemonitoring

95Gate drivers

11

10

DC earth-fault
protection

Gate drivers

6
12
Charging Plug
Position/Temp

Controllers

117
AC earth-fault
protection
Wireless

12
13
Communication

14
User interfaces

15
Access panel
sensors

CAN Bus
Note: Power converter topologies may differ based on
design-specific requirements.

Legend:Power
Data

Note: Other Littelfuse solutions may be suitable depending
on design-specific requirements.
Littelfuse, Inc. © 2021

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Click on the product series inthe table below for more info

Features and benefits of Littelfuse solutions
Technology
SiC or Si MOSFET

8

Diode
Temperature Sensor

9

10

11

12

Function in application

Product series

High-frequency switching andrectification

LSIC1MO, X-Class,
X2-Class, HiPerFETTM
LSIC2SD, DHG,
DSEI

Semiconductor temperature
measurement

USUR1000, KC

Gate Driver

Controls the switching MOSFETs

IXDN609, IX4351NE

DC FuseProtects semiconductor devices

PSR, SFPJ

Diode

CHAdeMO standard requires safety
diode for secondary protection

DMA, DHG, DSEIHV DC Contactors

The main contactors connect anddisconnect the DC charging unit

DCNxx

DC Earth-Fault Relay Offers low-level ground-fault protection.
Ground-fault current is sensed using a
Earth Reference Module Ground-Reference Module
Temperature Sensor

DC contacts hotspot detection

Reed Sensor

Charging plug position sensing

SE-601
SE-GRM

Benefits

Features

Optimized for high-frequency applications

Ultra-low output capacitance and on-resistance

Reduces switching losses; increases efficiency

High surge capability; negligible IRR; Tj 175 °C

Rapid thermal response and long-time reliability

UL recognized; wide range of temperature:-40 °C to 125 °C
9 A peak current; low propagation delay time;
low output impedance

Quick turn-on and turn-off of MOSFETs;
eliminates the need for separate supply
Lower I2t performance allows for quick response to
550–1300 VAC, 500–1000 VDC, 40–2000 A
protect devices from higher heat energy
High voltage options; very low forward voltage drop;Compact design; low turn-on loss;
small form factor
lower power dissipation
Wide range of capabilities–can switch from 10’s of
Allows a low-voltage signal to switch the contacts
amps to 1000’s of amps, and 10’s of volts to 1000’sfor a high voltage signalof volts
Provides a wide range of low-level protection;
adjustable trip delay allows quick protection ordelayed response

PPG, USW,
Offers high accuracy; high reliability;
Glass Coated Thermistor, excellent stability at high temperature
Robust design; well suited for usage in59060, 59045
high-moisture and contaminated environment

Adjustable pickup (1–20 mA); adjustable time delay(50 ms–2.5 s); CSA certified, UL Listed (E340889),
CE (European Union), C-Tick
Linear relationship between temp and resistance;
temp range -50 °C to +500 °C
Hermetically sealed, magnetically operated
contacts. Certified tor use in NA and Europe
Meets ESD protection levels specified under IEC
61000-4-2; ISO10605; low leakage current andclamping voltage

13

TVS Diode Array

Protects CAN, Ethernet, RS-485 busfrom ESD, EFT, and voltage transient

AQ24CAN, SM712

Ensures reliability of the equipment without
performance degradation

14

TVS Diode Array
Polymer ESD

Protects ICs from ESD through display

SP1026
XGD10402

Smaller form-factor and multi-line protection
enables ease of design

Low capacitance of 1.0 pF per I/O

15

Reed Sensor

Access panel for position sensing

59060, 59045

Robust design; well-suited for usage inhigh-moisture and contaminated environment

Hermetically sealed; magnetically operated
contacts; certified for use in NA and Europe

Littelfuse, Inc. © 2021

11

Wireless charging station
1

Service Access Panel Reed Sensor
2

User Interface

 TVS Diode Array Polymer ESD Suppressor
36Input Protection

 Fuse Surge Protection Device
 TVS Diode Current Transformer
 AC Fault Relay

7

Power Distribution Unit

 FuseCommunication

 TVS Diode Array
4

Rectification & PFC

 SiC/Si MOSFET Rectifier Diode/Module
 Gate Driver Temperature Sensor
5High-frequency Converter SiC MOSFET Gate Driver Temperature Sensor

1

3

7
2
4
8
5

6

8

Auxiliary Power Supply

 Fuse MOV, GDT, SIDACtor® + MOV
 Si MOSFET Rectifier Diode
Littelfuse, Inc. © 2021

12

Click on the product series inthe table below for more info

Wireless Charger Functional Block Diagram
AC
input

1
Power
distribution
unitHigh frequency
converter

4

8

2
Input
protection

Auxiliary
power
supplyCurrent andvoltagemonitoringAC earthfault
protection
Wireless

Rectifier & power
factor correction
Bridgeless,vienna or
boost
stage

Full bridge,
resonant

3

5
Gate
drivers

Wireless
Power Transfer

11Outp Inpu
OutpututPowertTransmission
Coils

Impedance
Matching
Network

9

2

2

Gate
drivers

3

6
12
Access panel
sensors

Controllers

7

4
11

10
Communication

User
interfaces

CAN Bus
Note: Power converter topologies may differ based on
design-specific requirements.

Legend:Power
Data

Technology

Product

AC Fuse (PDU level)

JLLS, JLLN

Overcurrent protection(Primary protection)

PSR, L50QS, L75QS

Surge protection(Primary protection)

SPD Type 2

TVS DiodeAK6, 1.5SMC

Si MOSFET

PolarTM

Rectifier and Schottky Diode

DMA, DST, DSA, DSB

AC Fuse(Secondary protection)

314, 324

Metal-Oxide Varistor

TMOV, UltraMOV

Gas Discharge Tube

CG2, CG3

SIDACtor + MOV

Pxxx0FNL + UltraMOV

Rectifier Diode

DMA

Rectifier Module

MDD, VUO, MDNA

SiC/Si MOSFET/
Discrete IGBTLSIC1MO/X2-Class/XPT

Diode

LSIC2SD, DHG, DSEI

Temperature Sensor

USUR1000, KC

5Gate Driver

IXDN609, IX4351NE

6

Current Transformer

SE-CS30

7AC Earth-Fault Relay

SE-704

Note: Other Littelfuse solutions may be suitable depending
on design-specific requirements.
Littelfuse, Inc. © 2021

13

Click on the product series inthe table below for more info

Features and benefits of Littelfuse solutions
Technology

1
2

Si MOSFET

3

High-speed switching

Rectifier and Schottky Provides output rectification in auxiliary
power supply
Diode
Overcurrent protection of auxiliary
AC Fuse(Secondary protection power supply
MOV
GDT
SIDACtor + MOV
Rectifier Diode

4

Function in application

Provide fast-acting overload and short
AC Fusecircuit protection.
(PDU Level)
Overcurrent protection
Protects semiconductor devices(Primary protection)
Protects from power fluctuations orSurge protection(Primary protection) surges
Protects power line from transient surge
TVS Diodetransient

Rectifier Module

GDT in series with TMOV protects theauxiliary power supply unit from voltage
transients induced by lightning
Enhancing surge protection for auxiliary
power supply
Converts AC line voltage supplied to thedrive to DC

SiC/Si MOSFET/
Boost converter for high-frequency
Discrete IGBT
switching in the PFC circuit
Diode
Temperature Sensor Temp sensing for semiconductors

5Gate Driver

6

Current Transformer

7

AC Earth-Fault Relay

Controls the switching MOSFETs/IGBTs
Offers ground-fault detection andprotection

Product series
JLLS, JLLN
PSR, L50QS, L75QSSPD Type 2
AK6, 1.5SMC
PolarTM
DMA, DST, DSA, DSB
314, 324
TMOV, UltraMOV
CG2, CG3
Pxxx0FNL + UltraMOVDMA
MDD, VUO, MDNA

Benefits
Reduces damage to equipment caused by heating
and magnetic effects of short circuit currents;
Lower I2t performance allows for quick response toprotect devices from higher heat energy
Withstands high-energy transients to prevent
disruption, downtime, and degradation
Good clamping and fast response time forhigh-energy transient protection

Features
Extremely current-limiting; Small footprint
200 kA interrupting rating
550–1300 VAC, 500–1000 VDC, 40–2000 A

20 kA nominal interrupting rating and 50 kA
maximum interrupting ratingHigh power TVS 8/20 µs rating from 1 kA to
20 kA in axial-lead or SMT form factor
Low RDS(ON) and Qg; avalanche rated; international
Easy to mount; space-savings; high power density
standard packages; low package inductanceLow forward voltage drop; high-frequency operation;
Improves power supply unit efficiency
high junction temperature
Reduces customer qualification time by complying In accordance with UL Standard 248-14;
available in cartridge and axial lead format
with third-party safety standards such as UL/IEC
Reduces customer qualification time by complying High energy absorption capability:
40–530 J (2 ms); integrated thermal protection
with third-party safety standards such as UL/IEC
High energy absorption capability;
Small form-factor allows for compact system design
small form-factor; low leakage current
Good clamping and fast response time for
3 kA, 8/20 µs surge capability to help protect AC
high-energy transient protectionlines from harmful transient surges.
Small footprint; multiple package options
Low leakage current and forward voltage drop;(high voltage, isolated, and standard packages)
improved thermal behavior; high robustness
Package with DCB ceramic; very low forward
Compact design, better electrical isolations
voltage drop and low leakage current

LSIC1MO/X2-Class/XPT Optimized for high-frequency applications

Ultra-low output capacitance and on-resistance

LSIC2SD, DHG, DSEIUSUR1000, KC

High surge capability; negligible IRR; Tj 175 °C
UL recognized; temperature range: -40−125 °C
9 A peak current; low propagation delay time;
low output impedance

IXDN609, IX4351NE
SE-CS30
SE-704

Reduces switching losses; increases efficiency
Rapid thermal response and long-time reliability
Quick turn-on and turn-off of MOSFETs/IGBTs;
eliminates the need for separate supply
Specifically designed for low level detection;
flux conditioner is included to prevent saturation
No calibration; low level protection and systemcoordination; low maintenanceTurns ratio 600:1 and current rating 30:0.05 A
Microprocessor-based; adjustable pickup (10 mA-5
A); Adjustable time delay (30 ms−2 s)Littelfuse, Inc. © 2021

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Click on the product series inthe table below for more info

Wireless Charger Functional Block Diagram
Rectifier & power
factor correction
AC
input

1
Power
distribution
unit

2
Input
protection

Auxiliary
power
supplyCurrent andvoltagemonitoringAC earthfault
protection
Wireless

High frequency
converter

4

Bridgeless,vienna or
boost
stage

8
Full bridge,
resonant

3

5
Gate
drivers

Technology

Product

SiC MOSFETLSIC1MO

Temperature Sensor

USUR1000, KC

9Gate Driver

IXDN609, IX4351NE

10TVS Diode Array

AQ24CAN, SM712

11

TVS Diode Array
Polymer ESD

SP1026
XGD10402

12

Reed Switch

59060, 59045

Wireless
Power Transfer
Outp Inpu
utPowertTransmission
Coils

Impedance
Matching
Network

9

1

2

Gate
drivers

8

6
12
Access panel
sensors

Controllers

7
11

10
Communication

User
interfaces

CAN Bus
Note: Power converter topologies may differ based on
design-specific requirements.

Legend:Power
Data
Littelfuse, Inc. © 2021

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Click on the product series inthe table below for more info

Features and benefits of Littelfuse solutions
Technology

Function in application

Product series

SiC MOSFET

High-frequency switching andrectification

LSIC1MO

Temperature Sensor

Semiconductor Temperature
measurement8

Benefits

Features

Optimized for high-frequency applications

Ultra-low output capacitance and on-resistance

USUR1000, KC

Rapid thermal response and long-time reliability

UL recognized; wide range of temperature:-40 °C to 125 °C

Controls the switching
MOSFETs/IGBTs

IXDN609, IX4351NE

Quick turn-on and turn-off of MOSFETs/IGBTs;
eliminates the need for separate supply

9 A peak current; low propagation delay time;
low output impedance

9

Gate Driver10

TVS Diode Array

Protects CAN, Ethernet, RS-485 busfrom ESD, EFT, and voltage transient

AQ24CAN, SM712

Ensures reliability of the equipment without
performance degradation

Meets ESD protection levels specified under IEC
61000-4-2; ISO10605; low leakage current andclamping voltage

11

TVS Diode Array
Polymer ESD

Protects ICs from ESD through display

SP1026
XGD10402

Smaller form-factor and multi-line protection
enables ease of design

Low capacitance of 1.0 pF per I/O

12

Reed Switch

Charging plug position sensing

59060, 59045

Robust design; well suited for usage inhigh-moisture and contaminated environment

Hermetically sealed; magnetically operated
contacts; certified tor use in NA and Europe

Littelfuse, Inc. © 2021

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Select standards for EV charging equipment
Standard

Title

General Scope

RegionIEC 61851 Series

Electric Vehicle Conductive Charging System

Various parts of this standard cover general requirements, along withAC chargers and DC chargers specifically.

GlobalIEC 62196 Series

Plugs, Socket-Outlets, Vehicle Connectors and Vehicle Inlets Conductive Charging of Electric Vehicles

Standards for charging plugs, sockets, and connectors.

GlobalIEC 61980 Series

Electric Vehicle Wireless Power Transfer (WPT) Systems

Various parts of this standard cover general requirements for wirelesscharging systems, along with specific technology-based requirements.

Global

GB/T 18487 Series

Electric Vehicle Conductive Charging System

Various parts of this standard cover general requirements, along withAC chargers and DC chargers specifically.

China

GB/T 20234 Series

Connection Set for Conductive Charging of Electric Vehicles

Standards for charging plugs in China.

China

SAE J1772*

Electric Vehicle and Plug-in Hybrid Electric Vehicle Conductive
Charge Coupler

Physical, electrical, functional and performance standard for charging
plugs in North America.

North
America

SAE J2954*

Wireless Power Transfer for Light-Duty Plug-In/Electric Vehicles
and Alignment Methodology

Interoperability, electromagnetic compatibility, EMF, minimum
performance, safety and testing for wireless chargers in North
America.

North
America

UL 2594

Standard for Electric Vehicle Supply Equipment

Safety standard for supply equipment (charging stations, cord sets,
power outlets, etc.) in North America. Tri-national standard for U.S.,
Canada, and Mexico (known as CAN/CSA C22.2 No. 280 in Canada
and NMX-J-677-ANCE in Mexico).

North
AmericaUL 2202

Standard for Electric Vehicle (EV) Charging System Equipment

Safety standard for electric vehicle charging equipment

U.S.

* J1772TM and J2954TM are registered trademarks of SAE International

Littelfuse, Inc. © 2021

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Additional information can be found on Littelfuse.com

Power Relay & Control Catalog

Integrated Circuits Catalog

Click on images
to open the
catalogs

Circuit Protection Catalog

EV Charging Brochure

Explore the world of Littelfuse with the electronics eCatalogs (http://electronicscatalogs.littelfuse.com/)

Littelfuse, Inc. © 2021

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Local resources supporting our global customers
Mount Prospect
Madison
ChicagoTroy
ChampaignRock Falls
Burlington
Saskatoon

Amsterdam
DeventerBremenLampertheim
Essen
Lauf

KaunasChippenham
Rapid City
Fremont
Milpitas
Long Beach

Beverly

Round RockSan SebastianCharneca de Caparica

Piedras Negras
Matamoros
Muzquiz

Beijing
Wuxi
SuzhouShanghai
KunshanLegnagoTsukubaTokyo

DongguanShenzhenHong Kong

Seongnam
Seoul

TaipeiChu-pei
New Delhi
Singapore

Taguig
Lipa City

ManausSão Paulo
LegendSales
R&D
Manufacturing

Littelfuse, Inc. © 2021

19

Partner for tomorrow’s electronic systems
BROAD
PRODUCT PORTFOLIOCOMPLIANCE AND
REGULATORY EXPERTISE

An industrial technology manufacturing
company empowering a sustainable,
connected, and safer world

To help customers in the design
process to account for requirements
set by global regulatory authorities

APPLICATIONEXPERTISETESTINGCAPABILITIESOur engineers partner directly withcustomers to help speed up productdesign and meet their unique needs

To help customers get products tomarket faster, we offer certification
testing to global regulatory standards

GLOBALCUSTOMER SERVICEGLOBALMANUFACTURING

Our global customer service team iswith you to anticipate your needs andensure a seamless experience

High-volume manufacturing that iscommitted to the highest quality
standards

Littelfuse, Inc. © 2021

20

Littelfuse.com
This document is provided by Littelfuse, Inc. (“Littelfuse”) for informational and guideline purposes only. Littelfuse assumes no liability for errors or omissions in this document orfor any of the information contained herein. Information is provided on an “as is” and “with all faults” basis for evaluation purposes only. Applications described are for illustrative
purposes only and Littelfuse makes no representation that such applications will be suitable for the customer’s specific use without further testing or modification. Littelfuse
expressly disclaims all warranties, whether express, implied or statutory, including but not limited to the implied warranties of merchantability and fitness for a particular purpose,and non-infringement. It is the customer’s sole responsibility to determine suitability for a particular system or use based on their own performance criteria, conditions, specificapplication, compatibility with other components, and environmental conditions. Customers must independently provide appropriate design and operating safeguards to minimize
any risks associated with their applications and products. Read complete Disclaimer Notice at: www.littelfuse.com/disclaimer-electronics.
Littelfuse, Inc. © 2021

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Supplementary slide

Types of electric vehicle charging stations

AC Level 1

AC Level 2

 120V AC, 1-phase, 12 A or 16 A max.
continuous current

Mode 1 (AC)Mode 2 (AC) 250 V AC, 1-phase,
16 A max. -OR480 V AC, 3-phase,
16 A max.

 250 V AC, 1-phase,
32 A max. -OR480 V AC, 3-phase,
32 A max.

 Cord with no pilot or
auxiliaryconnections

 Cord with control
pilot & shockprotection

 208 V-240 V AC, 1-phase, ≤ 80 A max.
continuous current

Mode 3 (AC) 250V AC, 1-phase, 32A max.
-OR480 V AC, 3-phase, 32 A max.

■ As defined by SAE J1772■ As defined by IEC 61851-1

DC Fast Charger
 380 V-600 V AC, 3-phase input;
DC output

Mode 4 (DC) AC or DC input supply, cord or permanently
connected, with control pilot & shock protection

 Permanently connected to AC supply with
control pilot & shock protection

 Delivers AC power from the wall socket tovehicle’s on-board charger

 Delivers AC power from the electrical supply tovehicle’s on-board charger

 Delivers DC power, bypassing the vehicle’s
on-board charger

 Typically takes 8-12 hours* to charge fully
depleted battery

 Typically takes 4-6 hours* to charge fully
depleted battery

 Typically provides 80% charge of fully depleted
battery within 30 minutes** Charge time dependent on vehicle’s battery capacity and charge acceptance rate

Littelfuse, Inc. © 2021

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