New Automotive Grade, Glass Protected NTC Thermistors designed for IGBT and Power MOSFET Modules in EVs and HEVs

Vishay Intertechnology, Inc. has extended its NTCS0603E3.....T and NTCS0805E3.....T series of automotive grade, glass protected NTC thermistors in the 0603 and 0805 case sizes with new electrical resistance values at +25 °C (R25). Smaller than MELF resistors, while offering easier mounting and greater resistance to bending, these devices will be used in automotive buck/boost converters, LED modules, and battery packs; EV charging infrastructure; inverters for windmills and solar panels; and office equipment.

These AEC-Q200 qualified devices are now available with lower R25 values of 1 kW and 1.5 kW, in addition to a new 5 kW value optimized for the protection of IGBT and power MOSFET modules in electric (EV) and hybrid electric (HEV) vehicles. Fully glass coated and protected, the enhanced thermistors offer tolerances down to ± 1 % for both their R25 and beta (B25/85) values for precise temperature sensing, protection, and compensation over a wide temperature range of -40 °C to +150 °C. 

Features

• TCR ranging from -7 %/K at -40 °C to -2 %/K at 150 °C

• Tolerance on R25 down to 1 %, and on B25/85 down to 1 %

• Suitable for wave or reflow soldering

• NiSn terminations

• Fully glass coated and protected

Applications

• Temperature sensing, protection and compensation in automotive, industrial, telecom and consumer applications

• Battery chargers

• Power supplies

• Office equipment

• LCD compensation

• In-car entertainment