Power Optimizers

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.

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.

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.

Littelfuse offers a variety of discrete negative temperature coefficient (NTC) sensors and thermistors for temperature sensing, temperature measuring, and process control applications. Our NTC sensor and thermistor portfolio includes bare chip, epoxy-coated, glass-coated chip, and surface mount devices. All boast high accuracy, long-term reliability, stability, and predictable performance in challenging environments.

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.