Power thick film resistor offers power rating of 1100 W in 57x60 mm footprint

Vishay Intertechnology released a power thick film resistor that is the first resistor in a compact 57 mm by 60 mm package to offer a power rating of 1100 W at a heat sink temperature of + 25 °C. The LPS1100 offers high-temperature derating performance and a broad range of resistance values.

The thick film resistor is non-inductive (< 0.1 μH) and features a resistance range from 1 Ω to 1.3 kΩ. The compact footprint, low 25 mm profile, and low weight of 79 grams, save valuable space. With high power capabilities and high dielectric strength to 12 kV_RMS, the LPS1100 targets power supply, inverter, converter, HEV-EV battery management, and snubber, chopper, pre-charge, discharge, filtering, and crowbar resistor applications. End products will include windmill turbines, X-ray and oncology tables, trains, and large UPS drives.

Thermal resistance for the LPS1100 resistor at rated power and + 25 °C is 0.039 °C/W junction-to-case. The device features a temperature coefficient of ± 150 ppm/°C, tolerances from ± 1 % to ± 10 %, and an operating temperature from - 55 °C to + 200 °C. The resistor is compliant to RoHS Directive 2011/65/EU.

Samples and production quantities available now, with lead times of eight to 10 weeks for large orders. Pricing in 15-piece orders is $100 per piece (U.S. delivery).

For more information contact Vishay