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Date: 25-05-22

Vishay's high-rel thin film wraparound chip resistors feature power density

Vishay's new Sfernice PEP thin film wraparound chip resistor available in four case sizes from 0402 to 1206 and features a high power rating to 1 W in the 1206 case size (without cooling under the PCB).

Available in resistance range of 39 Ω to 900 kΩ and tolerances down to ± 0.05 %, these are designed for industrial, military, and aerospace applications. Sfernice PEP delivers higher power ratings in smaller case sizes than competing devices, claims Vishay. Devices smaller in size and capable of handling high power increases reliability by reducing the mechanical stress on solder joints.

 PEP operates in the broad temperature range of -55 °C to +155 °C and feature very low noise of < -35 dB, a low voltage coefficient of < 0.01 ppm/V, and load-life stability of ± 0.1 % typical for 2,000 hours at +70 °C, the device’s typical specifications exceed the requirements of MIL-PRF-55342G.

End applications suggested include instrumentation, military and avionics guidance systems, automatic test equipment, industrial appliances, and operational amplifiers for test and measurement equipment.

These are RoHS-compliant, halogen-free, and Vishay Green, the device is sulfur-resistant per the ASTM B809-95 humid vapor test.

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