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    Vishay Intertechnology Thin Film Wraparound Chip Resistor

    Vishay Intertechnology, Inc. today introduced a new high precision thin film wraparound chip resistor for industrial, military, and aerospace applications. In addition to offering the widest resistance value range on the market, the Vishay Sfernice PEP delivers higher power ratings in smaller case sizes than competing devices, which enables miniaturization and increases reliability by reducing the mechanical stress on solder joints.

    The resistor released today is available in four case sizes from 0402 to 1206 and features a high power rating of 1 W in the 1206 case size (without cooling under the PCB). The PEP offers a wide resistance range from 39 Ω to 900 kΩ, with tolerances down to ± 0.05 %, and operates over a broad temperature range of -55 °C to +155 °C. Combined with 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.

    The PEP is optimized for precision applications requiring low noise and high stability over time and temperature. End products will include instrumentation, military and avionics guidance systems, automatic test equipment, industrial appliances, and operational amplifiers for test and measurement equipment.

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

    Device Specification Table:

    Case size

    Resistance range (Ω)

    Rated power (W) Pn¹

    Rated Power (W) Pd²

    Limiting element voltage (V)

    0402

    39 to 50 k

    0.125

    0.063

    50

    0603

    39 to 108 k

    0.320

    0.125

    75

    0805

    39 to 240 k

    0.500

    0.200

    150

    1206

    39 to 900 k

    0.660³

    0.330

    200

     ¹Pn = nominal power
    ²Pd = derated power intended to improve stability
    ³Pn = 1 W if the device is mounted on an alumina board

    Samples and production quantities of the PEP resistor are available now, with lead times of 16 weeks.

    For more information, visit www.vishay.com

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