Automotive-grade resistors offer TCR down to ± 2 ppm/K

28th May 2020
Mick Elliott

Vishay Intertechnology has extended its TNPU e3 series of Automotive Grade ultra-precision thin film flat chip resistors with lower temperature coefficient of resistance (TCR) down to ± 2 ppm/K in the 0603, 0805, and 1206 case sizes.

The resistors offer excellent long-term stability — for example, permitted maximum resistance change ≤ 0.05 % for 1,000 hours at rated power P70 — the Vishay Draloric TNPU e3 series combines the reliability of the well-known TNPW e3 series with lower TCR and tighter tolerances down to ± 0.02 % for increased accuracy.

This combination makes the AEC Q200 qualified resistors suited for applications such as operational amplifier circuits and sensors for test and measurement, automotive, industrial, medical, and telecommunications equipment.

The TNPU e3 series with TCR down ± 2 ppm/K is available in 0603, 0805, and 1206 case sizes, with resistance values from 500 Ω to 20 kΩ.

Offering superior moisture resistivity (85 °C; 85 % RH), sulfur resistance in accordance to ASTM B 809, and a wide temperature range of -55 °C to +125 °C, the resistors boast extremely stable operation that withstands even harsh environmental conditions.

The devices are suitable for processing on automatic SMD assembly systems and for automatic soldering using wave, reflow, or vapour phase. The resistors are RoHS-compliant, and their pure tin plating provides compatibility with lead (Pb)-free and lead (Pb)-containing soldering processes.

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