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    Euroquartz Releases SMD VCXO Low Jitter HF Oscillator

    Crusher at the Wodgina lithium mine in Western Australia. Image courtesy of Mineral Resources.

    Restart of Wodgina Mine is a Good News for Tantalum and Lithium Supply Chain

    Vishay Introduces Highest Energy Density Wet Tantalum Capacitors

    Impact of Ripple Current on Aluminum Electrolytic Capacitors Lifetime

    A set of printed sample cubes showcasing the effects of laser power and print speed on the magnetic core structures. Image source: Tallinn University of Technology

    Researchers 3D Printed Superior Soft Magnetic Cores with Laser Additive Process

    TDK Introduces Improved Performance PFC Capacitors

    Yageo Venture to Acquire 30% of APEC and Step Into Semiconductor MOSFET Business

    Vishay NTC Thermistor LTspice Simulation for PID Optimization; Vishay Webinar

    Stackpole Presents High Current Metal Shunt Resistors

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Vishay Releases Wirewound Resistors for EVs

4.5.2022
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Vishay Intertechnology is releasing new series of wirewound resistors for electric vehicles (EV) automotive applications.

The new RHA Vishay Dale series of AEC-Q200 qualified, chassis-mount wirewound resistors offer high reliability, accuracy, and stability for pre-charge and discharge applications in electric vehicles.

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Vishay Dale RHA series resistors mount directly onto a chassis to utilize the heat-sink effect. Offering high reliability, the devices feature a completely welded and molded construction for total environmental protection, and an operating temperature range of -55 °C to +250 °C. The resistors will serve as pre-charge and discharge resistors in EVs, in addition to voltage dividers in taillights and current limiters in dimming circuits for interior lighting.

The devices released today offer high power ratings up to 50 W in four small package sizes. The resistors’ tight tolerance down to ± 1 %, TCR as low as 20 ppm/°C, and wide resistance range from 0.1 kΩ to 39.2 kΩ enable higher accuracy and stability. The RHA series is RoHS-compliant, halogen-free, and Vishay Green.

FEATURES

  • AEC-Q200 qualified
  • Molded construction for total environmental protection
  • Complete welded construction
  • Mounts on chassis to utilize heat-sink effect
  • Excellent stability in operation (< 1 % change in resistance)
RHA Wirewound Resistors Specification Table
RHA Wirewound Resistor Technical Specification Table
Source: Vishay

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