Vishay Intertechnology has expanded its automotive component portfolio with the launch of a high-performance 50 W thick film power resistor designed for use in electric and hybrid vehicles.
The new Vishay Sfernice LTA 50, which meets AEC-Q200 automotive qualification standards, is built for direct mounting on a heatsink and is intended to deliver long-term reliability under harsh operating conditions. The component can tolerate temperatures up to +175 °C and withstand high levels of humidity, vibration, and electrical stress, according to the company.
Vishay said the LTA 50 is suitable for use as a pre-charge or discharge resistor in on-board chargers, battery management systems, and motor control units for electric (EV), hybrid (HEV), and plug-in hybrid (PHEV) vehicles.
The device offers resistance values ranging from 0.010 Ω to 450 kΩ, with tolerances down to ± 1 %, and features a non-inductive design. It provides a dielectric strength of 1500 Vrms and a limiting element voltage of 500 V.
The company noted that the component is RoHS-compliant and designed to maintain stable performance in safety-critical automotive environments. Samples and production quantities of the LTA 50 are available immediately, with standard lead times of around ten weeks.
