Interested in EV Charging products and applications expertise?

Electric Vehicle (EV) Charging

Since 1927, Littelfuse has defined the industry standard for automotive fuses. With our circuit protection, power control and sensing expertise, we can help extend the life of your ev charging equipment and improve the system’s overall performance. We offer guidance on what solutions work best for your unique system plus have insights on codes and standards for the EV market.

Electric Vehicle Charging Infrastructure

Western Automation, a leading provider of premium technology solutions for electrical fault detection, is now part of Littelfuse Learn More

Product Categories for EV Charging

Charging Ahead with eMobility

Littelfuse has a long history of pioneering innovative products that drive technological advances. Since its founding in 1927, our company has gone on to define the industry standard for automotive fuses and become a global leader in circuit protection, power control, and sensing.

Our commitment to the automotive industry continues today as it enters a new era of innovation. The future of cars and mobility is electric. As the demand for electric vehicles grows, so does the need for reliable and safe charging systems.

Three Key Goals

Littelfuse application expertise has helped to engineer some of the most advanced systems for EV charging stations. Let our team of experts show you how you can build safety, efficiency and reliability into your designs.

Whether you’re developing alternating current (ac) charging systems, which provide ac power to a vehicle’s on-board charger, or direct current (dc) fast chargers, which provide dc power to a vehicle’s battery system, you need a partner that can help you meet three key goals.

Safety

Considering the use by the general public year-round, it’s important that your EV charging equipment remains safe by minimizing the threat of electrical shock or other hazards.

Efficiency

Power conversion is crucial for dc fast charging systems. Minimizing losses in power conversion ensures the maximum amount of power is delivered for charging the vehicle’s battery.

Reliability

Once installed, you’ll want to ensure that your EV charging equipment remains functional for 10 or more years, even in the harshest conditions, to ensure you deliver the best return on investment.

DC Charging Station (Fast Charger)

Dc charging stations are designed to convert the electrical grid’s ac power into dc power that can then be fed directly into a vehicle’s battery system for fast charging—in 30 minutes or less. Because the conversion from ac to dc power is being done in the charging station, these units can provide higher levels of power (50 kW to 350 kW and beyond) to the vehicle compared to ac charging stations. Working with tens to hundreds of kilowatts of power, efficient conversion, reliability of the system, and user safety are critical.

DC Charging Station

DC Charger Functional Block Diagram

**Note:** Other Littelfuse solutions may be suitable depending on design-specific requirements.
Technology	Product Series
AC Fuse (PDU Level)	JLLS, JLLN
Overcurrent Protection (Primary Protection) Surge protection (Primary protection) TVS Diode	PSR, L50QS, L75QS SPD Type 2 AK6, 1.5SMC
Si MOSFET Rectifier and Schottky Diode AC Fuse (Secondary Protection) MOV GDT SIDACtor® + MOV	Polar™ DMA, DMA, DST, DSA, DSB 314, 324 TMOV, UltraMOV CG2, CG3 Pxxx0FNL + UltraMOV
Rectifier Diode Rectifier Module SiC/Si MOSFET/Discrete IGBT Diode Temperature Sensor	DMA MDD, VUO, MDNA LSIC1M0/X2-Class/XPT LSIC2SD, DHG, DSEI USUR1000, KC
Gate Driver	IXDN609, IX4351NE
6 Current Transformer	SE-CS30
AC Earth-Fault Relay	SE-704
SiC or Si MOSFET Diode Temperature Sensor	LSIC1MO, X-Class, X2-Class, HiPerFET^TM, LSIC2SD, DHG, DSEI USUR1000, KC
Gate Driver	IXDN609, IX4351NE
DC Fuse Diode HV DC Contactors	PSR,SPFJ DMA,DHG,DSEI DCNxx
DC Earth-Fault Relay Earth Reference Module	SE-601 SE-GRM
Temperature Sensor/Temperature Indicator Reed Sensor	PPG,USW,Glass Coated Thermistor 59060,59045
TVS Diode Array	AQ24CAN, SM712
TVS Diode Array Polymer ESD	SP1026, XGD10402
Reed Sensor	59060, 59045

AC Charging Station

Although simpler in nature compared to dc chargers, ac charging stations safely deliver ac power from the electrical grid into the vehicle. Due to space and weight constraints in the vehicle, on-board chargers and ac charging stations are typically limited to lower amounts of power (22 kW or less), which means charging time is slow – taking several hours. These systems also rely on a vehicle’s on-board charger to enable the conversion of ac power from the grid into dc power to charge the vehicle’s battery. It’s critical that proper measures are taken to safeguard both the charger and vehicle.

AC Charging Station

AC Charger Functional Block Diagram

**Note:** Other Littelfuse solutions may be suitable depending on design-specific requirements.
Technology	Product Series
Fuse Circuit Breakers MOV	606, 505, 607, JLLN N-series TMOV, Xtreme, SPDx, SM10
Mechanical Relay	EVR
Temperature Sensor	PPG, USW, Glass Coated Thermistor
Residual Current Monitor Reed Relay	RCM14-01, RCM14-03, RCM14-04, RCM01-02, RCM20-01, RCMP20-01, RCMP20-03 HE3600
TVS Diode Polymer ESD	SP1026 XGD10402
Fuse + Varistor or PPTC + Varistor Schottky Diode SIDACtor + MOV	215, 443E, TMOV, SM10 or LVR + MOV, SM10 DST, DSA, DSB Pxxx0FNL + UltraMOV
TVS Diode Array Switch	AQ24CAN, SM712 Rotary Switch
Fuse + Varistor or PPTC + Varistor Schottky Diode SIDACtor + MOV	215, 443E, TMOV, SM10 or LVR + MOV, SM10 DST, DSA, DSB Pxxx0FNL + UltraMOV
Fuse + Varistor or PPTC + Varistor Schottky Diode SIDACtor + MOV	215, 443E, TMOV, SM10 or LVR + MOV, SM10 DST, DSA, DSB Pxxx0FNL + UltraMOV
Fuse + Varistor or PPTC + Varistor Schottky Diode SIDACtor + MOV	215, 443E, TMOV, SM10 or LVR + MOV, SM10 DST, DSA, DSB Pxxx0FNL + UltraMOV

Wireless Charging Station

A wireless charging station adds power to the lithium-ion battery of an electrical vehicle without a cable connection. Based on inductive charging, when the car reaches the requisite proximity to the charging coil located underground, the charging process begins.

Wireless Charging Station

Wireless Charger Functional Block Diagram

**Note:** Other Littelfuse solutions may be suitable depending on design-specific requirements.
Technology	Product Series
AC Fuse (PDU Level)	JLLS, JLLN
Overcurrent Protection (Primary Protection) Surge protection (Primary protection) TVS Diode	PSR, L50QS, L75QS SPD Type 2 AK6, 1.5SMC
Si MOSFET Rectifier and Schottky Diode AC Fuse (Secondary Protection) MOV GDT SIDACtor® + MOV	Polar™ DMA, DMA, DST, DSA, DSB 314, 324 TMOV, UltraMOV CG2, CG3 Pxxx0FNL + UltraMOV
Rectifier Diode Rectifier Module SiC/Si MOSFET/Discrete IGBT Diode Temperature Sensor	DMA MDD, VUO, MDNA LSIC1M0/X2-Class/XPT LSIC2SD, DHG, DSEI USUR1000, KC
Gate Driver	IXDN609, IX4351NE
Current Transformer	SE-CS30
AC Earth-Fault Relay	SE-704
SiC or Si MOSFET Temperature Sensor	LSIC1MO USUR1000, KC
Gate Driver	IXDN609, IX4351NE
TVS Diode Array	AQ24CAN, SM712
TVS Diode Array, Polymer ESD	SP1026, XGD10402
Reed Switch	59060, 59045