Power current sense resistors

OAR-TP series open air sense resistor from TT electronics IRC Wire and Film Technologies Div. is designed to transfer heat from circuits and solder joints.


Control Components

OAR-TP series open air sense resistor from TT electronics IRC Wire and Film Technologies Div. is designed to transfer heat from circuits and solder joints. Available in 1 or 3 W ratings, the narrow footprint device is intended for current sensing, feedback, low inductance, and surge and pulse applications. According to the company, the hot spot on the OAR-TP resistor is approximately 0.2 in. higher than on a typical metal strip chip resistor, resulting in an increased thermal path that reduces heat transfer into solder joints and circuits. Feature makes the device suitable for thermally harsh environments, including automotive and aerospace applications and enclosed, poorly ventilated circuits. Operating temperature range is–40 to 125 °C. The 1 W resistor is 0.30 in. high; the 3 W device has a height of 1.25 in.


TT electronics, IRC Wire and Film Technologies Div.

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