Vishay introduces 650W thick film power resistors

Vishay Intertechnology, Inc., a Fortune 1000 company listed on the New York Stock Exchange, has announced the introduction of its new RPWA 650 series thick film power resistors. These resistors can handle 650 W of continuous power and are packaged in a low profile design. The resistors offer customizable cabling options and can be integrated with temperature sensing capabilities.

Operating within a broad temperature range of -55 °C to +155 °C, the RPWA 650 series utilizes a cold system baseplate design for efficient heat transfer to an external heatsink. The resistors integrate a power resistor and an optional embedded NTC temperature sensor into a single housing, featuring an easy-mount system with self-calibrating pressure that negates the need for board-level soldering.

The resistors come with a range of resistance values from 6.2 Ω to 1 MΩ, with tolerance levels as low as ± 5 percent. They support a wide array of applications, including precharge, discharge, active discharge, power conversion, and snubber operations in various sectors such as automotive, energy, industrial, medical, and avionics systems. Key electrical specifications include a maximum operating voltage of 6000 VDC, dielectric strength up to 7000 VRMS, and a typical self-inductance of ≤ 40 nH.

With the ability to handle pulse energy up to 3.5 J per pulse during 50 μs pulses under repetitive operation, these resistors are RoHS-compliant and are currently pending AEC-Q200 qualification. Samples and production quantities are available with lead times ranging between 8 to 12 weeks.

For further details, interested parties can refer to the press release statement. Vishay Intertechnology manufactures discrete semiconductors and passive electronic components for a broad range of markets, including automotive, industrial, computing, consumer, telecommunications, military, aerospace, and medical industries.