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KOA Introduces High Power Ceramic Cased Resistors for Automotive Pre-Charge / Discharge

12.2.2020
Reading Time: 2 mins read
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VIEWS

KOA is introducing new range of wire wound and metal oxide high power resistors in ceramic case, dedicated to automotive pre-charge/discharge applications.

  • BGRV wirewound resistors – designed to withstand the high inrush currents present in Electric Vehicle pre-charge circuits.
  • BWRV wirewound resistors – features lower resistance values as well as improved T.C.R. and tight resistance tolerances.
  • BSRV metal oxide resistors – designed for the capacitor discharge function in the DC/DC converter and in Electric Vehicle discharge circuits.All 3 resistor series are available with spade/lug terminals for use in wiring harness or connector blocks.

Product Features

RelatedPosts

Snubber Capacitors in Power Electronics

TAIYO YUDEN Expands Lineup of Multilayer Metal Power Inductors

Bourns Releases New High Energy Gas Discharge Tubes

  • High reliability, suitable for automotive applications Excellent inrush current withstand characteristics Excellent overload performance
  • Optional ‘quick connect’ terminals
  • Flame-retardant ceramic case 1 Ω…75 kΩ
  • ±5 % or ±10 %
  • 3W…40W
  • Operating temperatures up to +155 °C Tested acc. to AEC-Q200 requirements EU-RoHS compliant

Application Examples

  • Battery unit / inverter circuits for automotive electronics (HEV, EV, PHEV, FCV)
  • Pre-charge circuit of electric vehicle (BGRV, BWRV) Discharge circuit of electric vehicle (BSRV)
  • On board car charger
  • Industrial converter / inverter

Example of Application Circuit

Source: KOA

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