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März 17, 2017 /  Category: Passive components, Beck Handel

New Current Sensing Thick Film Resistors for Automotive from KOA

 

resistor-thick-film-automotive-koa

KOA’s UR73V-series thick film low ohm resistors are designed for current detection, especially in demanding environments. The special facedown construction makes lower resistance values with a low T.C.R. possible.

The low T.C.R of new UR73V-series and its wide operating temperature range of -55 °C to +155 °C make it ideal for applications such as automotive or high reliability DC-DC converters.

The T.C.R. of ±75 ppm/K is specified for resistance values between 15 mΩ and 75 mΩ in 1206 size.

The UR73V-series is available from 10 mΩ to 100mΩ and is available in 0805 and 1206 sizes.

Features:

  • 10 mΩ to 100 mΩ
  • 0.5 W (0805 size), 0.75 W (1206 size)
  • AEC-Q200 qualified
  • ±1 % tolerance
  • Lower cost alternative to metal plate parts
  • Standard and face down type available
  • Improved high temperature reliability
    (operating temperature -55 °C to +155 °C)

Applications:

  • Automotive, including "under the hood" applications such as ECUs
  • Power supplies
  • DC-DC converters
  • Motor controls
  • Industrial automation
  • Meter
  • LED Lighting
Ratings
TypeSize
(inch)
Power
Rating
Rated Terminal
Part Temp.
T.C.R.
(ppm/K)
Resistance Range (Ω)
E24 & 25 m, 50 m
Resistance
Tolerance
UR73VD 2A
(facedown)
0805
0.5 W+100 °C0 ~ +25010 m - 11 m±1 %
0 ~ +15012 m - 13 m
±7515 m - 36 m
UR73V 2A±7539 m - 100 m
UR73VD 2B
(facedown)
12060.75 W+110 °C 0 ~ +25010 m - 11 m
±7512 m - 27 m
UR73V 2B±7533 m - 75 m
±10030 m, 82 m - 100 m