New WSLT3921 and WSLT5931 High-Temperature,
Surface-Mount Power Metal Strip^® Resistors

The Key Benefits:

• Offer an operating temperature range of -65 °C to +275 °C while maintaining the superior electrical characteristics of the Power Metal Strip^® construction
• A proprietary processing technique produces low resistance values ranging from 0.001 Ω to 0.004 Ω with tight tolerances of 1.0 % and 5.0 %
• Provide very low inductance of < 5 µH, excellent frequency response to 50 MHz, and low thermal EMF (< 3 µV/ °C)
• Feature an all-welded construction that contributes to their superior electrical performance

The Key Applications:

• Current-sensing, voltage division, and pulse applications, including switching and linear power supplies, instruments, and power amplifiers in automotive electronic controls such as engine and chassis controls, driver information electronics and climate controls; and industrial controls, including down-hole test/measurement equipment for oil/gas well drilling

The News:

Vishay Releases Industry's First Power Metal Strip^® Resistors in 3921 and 5931 Case Sizes With an Operating Temperature Range of -65 °C to +275 °C, Extremely Low Resistance Values Down to 0.001 Ω, and Tight Tolerances of 1.0 % and 5.0 %

Vishay Intertechnology, Inc. (NYSE: VSH) announces two new high-temperature, surface-mount Power Metal Strip^® resistors that are the industry's first such devices in the 3921 and 5931 case sizes to offer an operating temperature range of -65 °C to +275 °C.

• Proprietary construction incorporates a solid metal iron-chrome alloy resistive element with low TCR (< 20 PPM/°C) and specially selected and stabilized material for high-temperature capability
• The WSLT3921 resistor measures 0.394 in. by 0.205 in. [10.0 mm by 5.2 mm] with a maximum height profile of 0.020 in. [0.5 mm]
• The WSLT5931 resistor measures 0.591 in. by 0.305 in. [15.0 mm by 7.75 mm] with a height profile of 0.020 in. [0.5 mm]
• Offered in tape-and-reel packaging

Key Device Specifications:

The Perspective:

Vishay's new WSLT3921 and WSLT5931 surface-mount Power Metal Strip^® resistors are the Industry's first such devices in the 3921 and 5931 case sizes to feature an operating temperature range of -65 °C to +275 °C. For designers, this high-temperature capability allows the use of the WSLT3921 and WSLT5931 resistors in harsh, high-temperature environments without sacrificing power rating or electrical performance

Availability:

Samples and production quantities of the new WSLT3921 and WSLT5931 high-temperature resistors are available now, with a lead time of four to six weeks for larger orders.

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