Link has been copied to clipboardEV Wireless Chargers
Depend on Littelfuse to deliver reliable electronics solutions for each component of a wireless charging system for electric cars, buses, and semis. Trust our polymer ESD suppressors to protect drivers from shocks while using touchscreen controls. Rely on our MOSFETs and broad array of overvoltage protection devices such as gas discharge tubes for rectification and power factor correction.
Product Categories
Temperature Sensors
Littelfuse offers a broad portfolio of thermistors, resistance temperature detectors (RTDs), digital temperature indicators, and probes and assemblies to meet a wide range of demanding temperature sensing applications. Littelfuse also specializes in designing custom NTC thermistor and RTD sensors to meet unique system requirements. Each temperature sensor style has its own set of operating principles, features, benefits, considerations, and limitations for optimal use. Common applications include HVAC-R, renewable energy, appliances, food service, medical, and more.
TVS Diode Arrays
TVS diode arrays protect electronics from damage due to transient voltage surges and electrostatic discharges (ESDs). Littelfuse offers a variety of these surge protective devices (SPDs) in SOIC, DIP, flipchip, and other designs. Our lightning SPDs direct massive voltage surges from lightning strikes on outdoor equipment to ground. Our ultra-low capacitance TVS diodes provide ESD protection to data ports and cables. We also make SPDs specifically for automotive applications. Find your solution in our Circuit Protection Products Selection Guide.
Rectifier
Rectifier diodes convert alternating current to direct current. You find the solid state switches in almost all electrical systems. For this reason, Littelfuse produces many types of low- and high-current rectifiers with a range of designs and performance characteristics. Consult our Power Semiconductor Product Catalog to decide if a D-Pak, Teccor®, capsule-type, easy mount, or stud-type rectifier best serves your application.
Fuses
Littelfuse produces more fuses, fuse types and fuse sizes than any other electrical component manufacturer. Our industrial fuses, power fuses, automotive fuses, axial fuses, cartridge fuses, surface mount fuses, specialty fuses, and medium voltage fuses provide overcurrent protection and regulate current flow in practically every device, machine, and electrical system.
SIDACtor® Protection Thyristors
SIDACtor protection thyristors prevent damage from transient voltage surges due to lightning strikes and ac power crosses. The surge protective devices also protect people and electronics from electrostatic discharges generated by human–machine interactions. These specialized silicon diodes for alternating current (SIDACs) join LED protectors as circuit protection products offered by Littelfuse. Consult our catalog to find a solution for your broadband, baseband, cellular, DS1, LCAS, SLIC, voice, or lighting application.
Current Transformers
Littelfuse offers a variety of current transformers to detect phase currents, ground-fault currents, and low levels of earth-leakage currents before they cause serious damage. Installing one of our current transformers maximizes protection of electrical components.
Gate Drivers
Optimize the performance of power semiconductors, rectifiers, inverters, and other solid state switches by using gate driver ICs produced by Littelfuse and our IXYS subsidiary. We make integrated circuits to control IGBTs, MOSFETs, and innovative SiC-MOSFETs. We also offer patented optically isolated gate drivers for use in applications requiring superior fast turnoff performance.
Gas Discharge Tubes
Reduce the risk of damage from short-lived and unpredictable voltage surges by installing durable gas discharge tubes (GDTs). The plasma-filled overvoltage protection devices absorb large amounts of current and redirect it to ground without producing frequencies that could incapacitate nearby components. These characteristics make GDTs essential surge protective devices for outdoor telecom equipment prone to lightning strikes. Littelfuse offers a broad selection of leaded and surface mounted GDTs for many applications. Each boasts a minimal footprint and low weight, and our squared GDT is among the smallest available.
Fuses & Overcurrent Protection
Littelfuse offers proven, reliable overcurrent solutions. Our global reputation is built from years of engineering and design expertise. Our fuses and devices safeguard sensitive electronic systems. From automotive to industrial applications, our products meet global standards, protecting equipment worldwide.
Varistors
Varistors provide transient voltage surge suppression in consumer electronics, household appliances, telecom equipment, and computers. The overvoltage protection devices shield semiconductors and other components from damage due to lightning strikes, and electrostatic discharges. Littelfuse produces metal oxide varistors (MOVs) in surface mount, thermally protected, and radial leaded configurations. In addition to AUMOV®, UltraMOV®, and TMOV® devices, we design specialty varistors to customers’ specifications.
Surge Protective Modules & Devices
Protecting electrical equipment from transient voltage surges prevents outages and reduces maintenance. Littelfuse offers several surge protectors to limit damage from lightning and overvoltage that may occur when equipment is switched on. Our varistor modules provide overvoltage protection for outdoor equipment and LEDs. Our globally compliant Type 2 SPDs plug in to generators, motors, and telecom and computer equipment. Consult our Surge Protection Devices Catalog to find your best solution.
MOSFETs (Si/SiC)
Silicon and silicon carbide metal-oxide–semiconductor field effect transistors (MOSFETs) can perform a range of current conversion, current switching, and power factor correction (PFC) operations. This versality makes the power semiconductors first choices for thousands of applications. Littelfuse and its IXYS subsidiary ensure customers have the discrete MOSFET or MOSFET module they need for their rectifier, inverter, or PFC circuit. In addition to supplying several types of off-the-shelf MOSFETs in a wide variety of configurations, we partner with customers to design and produce customized solutions.
Reed Switches
Reed switches open and close circuits based on signals received from magnetic sensors. The electromechanical switches themselves often form integral components of liquid level sensors used in industrial controls, coolant systems, and air conditioners. When signaled, a normally open switch closes a circuit to initiate an automated process or trigger an alarm. Littelfuse makes a broad array of reed switches in bare glass and overmolded packages. Each of our liquid level sensing reed switches works with a floating actuator magnet and is engineered to withstand harsh operating conditions.
Ground-Fault Relays
Ground-fault relays help protect people from injuries and prevent damage to electrical equipment. Littelfuse produces relays for grounded and ungrounded systems. The units work by detecting slight deviations in current, voltage, resistance, or temperature. When conditions for a ground fault exist, our relays trigger alarms or trip circuit breakers.
Power Diodes
Diodes for power supply applications require low reverse recovery times and low forward voltage drops. Each discrete diode produced by Littelfuse boasts these characteristics, as well as low leakage. Our rectifier, ultrafast rectifier, fast recovery, and silicon Schottky diodes offer optimal switching solutions for dc–dc converters, induction heaters, and ultrasonic cleaners and welders. The Schottky devices are especially suited for use in EVs. Consult our Power Semiconductor Product Catalog to find the diode you require.
TVS Diodes
Transient voltage suppressor (TVS) diodes defend against damage from overvoltage events by responding within picoseconds to shunt current to ground. The classic example of TVS diode use is protecting outdoor telecom equipment from lightning strikes. Littelfuse produces surface mount and leaded diodes and TVS diode arrays for that, as well as TVS diodes for cars, personal electronics, data cables, and household appliances. Consult our Circuit Protection Selection Guide to guide your search for a solution.
Block Diagram
| Technology: | |
|---|---|
| Product Series: | |
| Features: | Low RDS(ON) and Qg; avalanche rated; international standard packages; low package inductance |
| Benefits: | Easy to mount; space-savings; high power density |
| Technology: | |
|---|---|
| Product Series: | |
| Features: | Low leakage current and forward voltage drop; improved thermal behavior; high robustness |
| Benefits: | Small footprint; multiple package options (high voltage, isolated, and standard packages) |
| Technology: | |
|---|---|
| Product Series: | IX4351NE |
| Features: | 9 A peak current; low propagation delay time; low output impedance |
| Benefits: | Quick turn-on and turn-off of MOSFETs/IGBTs; eliminates the need for separate supply |
| Technology: | |
|---|---|
| Product Series: | SE-CS30 |
| Features: | Turns ratio 600:1 and current rating 30:0.05 A |
| Benefits: | Specifically designed for low level detection; flux conditioner is included to prevent saturation |
| Technology: | |
|---|---|
| Product Series: | SE-704 |
| Features: | Microprocessor-based; adjustable pickup (10 mA-5 A); Adjustable time delay (30 ms?2 s) |
| Benefits: | No calibration; low level protection and system coordination; low maintenance |
| Technology: | |
|---|---|
| Product Series: | |
| Features: | Ultra-low output capacitance and on-resistance |
| Benefits: | Optimized for high-frequency applications |
| Technology: | |
|---|---|
| Product Series: | IX4351NE |
| Features: | 9 A peak current; low propagation delay time; low output impedance |
| Benefits: | Quick turn-on and turn-off of MOSFETs/IGBTs; eliminates the need for separate supply |
| Technology: | |
|---|---|
| Product Series: | SM712 |
| Features: | Meets ESD protection levels specified under IEC 61000-4-2; ISO10605; low leakage current and clamping voltage |
| Benefits: | Ensures reliability of the equipment without performance degradation |
EV Wireless Chargers Related Products
Littelfuse Product & Part Number
Features
Benefits
Features
- Switching power ratings from 5 W to 50 W
- Switching voltage ratings from 170 V dc to 250 V dc
- Switching current ratings from 250 mA to 1 A
- Broad range of sensitivity (AT) ratings
- RoHS compliant
Benefits
- Miniature and subminiature packages
- Surface mount versions available
- Versions with changeover contacts instead of normally open contacts available
Littelfuse Product & Part Number
Features
Benefits
Features
Benefits
Features
Benefits
Features
Benefits
Features
Benefits
Features
Benefits
Littelfuse Product & Part Number
Overvoltage Protection
Product SeriesSurge Protective Modules & Devices
Features
Benefits
Features
Benefits
Features
- Optimizes performance of dc–dc converters and power supplies.
- Diodes as Power Semiconductors, Rectifiers & Dc–Dc Converters
Benefits
Littelfuse Product & Part Number
Features
Benefits
Features
- Available with a wide range of voltage ratings, from 200 Vrpm to 7.2 Vrpm
- Available with a wide range of current ratings, from 15 A to 12.1 kA
- Operate in a temperature range of –40 ℃ to 150 ℃
- RoHS compliant
Benefits
- Available in international standard packages
- Available in surface mount, capsule, and stud configurations
- Optimized to produce low conduction losses
- High surge current capabilities
Littelfuse Product & Part Number
Features
Benefits
Features
- CT secondary current ratings from 50 mA to 5 A
- Inner diameters from 25.4 mm to 210 mm
- Typical insulation levels of 600 V
Benefits
- Wide range of turns ratios up to 800:1
- Flux conditioner available or included with several versions
- Low weight
Features
- Alternating current supply voltage ratings from 120 V ac to 600 V ac
- Operate at between 50 Hz and 60 Hz
- Ground fault trip settings as low as 5 mA
- Meet CSA standards
- UL Listed
Benefits
- Available with normally open (Form A), normally closed (Form B), or combination normally open–normally closed (Form C) contacts
- Fail safe/Non-fail safe contact operations
- Automatic reset versions available
- Optional or standard conformal coatings on internal circuits to protect against corrosion
Ask an Expert
Please let us know about your EV Wireless Chargers project to have one of our experts help you find the best Littelfuse solution for your needs.