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KOA Increases Power Ratings of its Wide Terminal Chip Resistors

11.4.2025
Reading Time: 2 mins read
A A

KOA releases new wide terminal (reverse geometry) flat SMD chip resistors. The terminal temperature specifications enable even higher power ratings specification.

KOA’s WK73R/WK73S new wide terminal type flat SMD chip resistors have a structure with large electrodes for excellent heat dissipation and can apply higher power compared to short-side electrode resistors of the same size.

RelatedPosts

KOA Increases Rated Power of its Pulse/Surge Chip Resistors

IEC 60115-8 Revision 3 Enhances SMD Resistor Safety by Introducing a New Concept of Reference Temperature for Rated Power

KOA to Build New Factory in Malaysia to Increase Thick Film Resistor Production

It is now possible to guarantee even higher power ratings by applying terminal temperature regulations and reviewing the specifications to WK73R/WK73S.

As a result, the series has accomplished higher rated power in all sizes from 0204 inch to 1225 inch, including a guaranteed maximum rated power of 4 W in the 1225 inch size (WK73S).

The category power enables high power application even at high temperatures and power can be applied up to  0.833 W at 155°C in the 0508 inch size (WK73S).

Compared to general-purpose chip resistors (RK73 series), it contributes to downsizing of circuits and reduction in the number of components. AEC-Q200 Tested.

Features

  • Flat chip resistors of wide terminal type.
  • High reliability and performance with TCR ±100×10-6/K,
  • resistance tolerance ±0.5%.
  • Suitable for both reflow and flow solderings.
  • Products meet EU-RoHS requirements.
  • AEC-Q200 Tested

Applications

  • Car electronics
  • power supply
  • industrial equipment, etc.

Related

Source: KOA

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