Vishay Intertechnology, Inc. (NYSE: VSH) today introduced a new high-temperature, surface-mount, wraparound thick film chip resistor. For down-hole drilling applications, the CHPHT is the industry's first such device to offer an operating temperature range from - 55 °C to + 230 °C and a storage temperature range of - 55 °C to + 245 °C.
Optimized for multi-chip modules (MCM) in down-hole drilling instrumentation, the high-temperature capabilities of the CHPHT resistor allow for the extraction of petroleum at deeper depths. Offered in 0603, 0805, 1206, and 2010 case sizes (with other sizes available upon request), the resistor offers a wide resistance range from 0.1 ohm to 100 megohms; tolerances of 1 %, 2 %, and 5 %; and power dissipation of 12.5 mW to 100 mW at + 230 °C.