Vishay Intertechnology Announces New IHTH High-Current, High-Temperature Inductors for Automotive Applications

With a frequency range up to 10 MHz for some values, the devices released today serve as high-performing, space- and power-saving solutions for voltage regulator modules (VRM) and DC/DC converters. The IHTH-0750IZ-5A and IHTH-1125KZ-5A are designed for high-temperature automotive applications, including engine and transmission control units, diesel injection drivers, LED drivers, HID lighting, and noise suppression for motors in windshield wipers, power seats and mirrors, and heating and ventilation blowers.

The new inductors handle high transient current spikes without hard saturation. Packaged in an RoHS-compliant, 100 % lead (Pb)-free shielded, composite construction that reduces buzz noise to ultra-low levels, the devices are specified for an operating temperature range of -55 °C to +155 °C, with high resistance to thermal shock, moisture, mechanical shock, and vibration. The inductors are halogen-free and conform to Vishay Green standards.

Device Specification Table:

Part number IHTH-0750IZ-5A IHTH-1125KZ-5A
Case size 0750 1125
Inductance @ 100 kHz, 0.25 V, 0 A 0.47 µH to 100 µH 0.47 µH to 100 µH
DCR typ. 25 °C 0.47 mΩ to 60.80 mΩ 0.26 mΩ to 30.7 mΩ
DCR max. 25 °C 0.52 mΩ to 64.00 mΩ 0.3 mΩ to 32.2 mΩ
Heating rating current DC typ. 5.0 A to 83.0 A 8.8 A to 125 A
Saturation current DC typ. 5.2 A to 44.0 A 6.0 A to 112 A

Samples and production quantities of the new high-temperature inductors are available now, with lead times of 10 weeks for large orders.