Vishay enhance resistors for stable performance

28th October 2013

Vishay

Staff Reporter

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Datasheet

Designed to deliver stable performance under harsh environmental conditions, the enhanced MC AT professional and precision series of automotive thin film chip resistors from Vishay come in standard case sizes from 0402 to 1206. The Vishay Beyschlag devices now offer lower TCR down to ± 10 ppm/K and a wider range of resistance values from 1 Ω to 1 MΩ.

With a new extended resistance range of 1 Ω to 1 MΩ, the enhanced MC AT professional resistors combine high-temperature performance to +175 °C. Precision series devices now offer resistance values of 47 Ω to 1 MΩ with tolerances down to ± 0.1 %, and lower TCR down to ± 10 ppm/K. The professional and precision series resistors provide a high power rating of 400 mW at +85 °C and +70 °C, respectively, in the 1206 case size.

With an excellent moisture and sulfur resistivity, operating voltages from 50 V to 200 V, and 2000 V ESD capability, all MC AT devices are optimized to provide highly reliable performance in harsh environments. Typical applications will include engine control units, climate control, braking systems, power supplies, lighting, and sensors in automotives; telecom base stations; and industrial and medical measurement equipment.

The MC AT resistors are AEC-Q200-qualified and approved to EN 140401-801. Suitable for processing on automatic SMD assembly systems, the devices are RoHS-compliant and compatible with lead (Pb)-free and tin/lead (Sn/Pb) reflow and vapor-phase soldering processes.

Device Specification Table:

Series	Part #	Resistance	Tolerance	TCR	Rated dissipation
Professional series	MCS 0402 AT	221 kΩ	± 1 %; ± 0.5 %	± 50 ppm/K; ± 25 ppm/K		+175 °C
	MCT 0603 AT	1 Ω - 511 kΩ	± 1 %; ± 0.5 %	± 50 ppm/K; ± 25 ppm/K		+175 °C
	MCU 0805 AT	1 Ω - 1 MΩ	± 1 %; ± 0.5 %	± 50 ppm/K; ± 25 ppm/K		+175 °C
	MCA 1206 AT	1 Ω - 1 MΩ	± 1 %; ± 0.5 %	± 50 ppm/K; ± 25 ppm/K		+175 °C
Precision series	MCS 0402 AT	47 Ω - 221 kΩ	± 0.1 %	± 25 ppm/K; ± 15 ppm/K; ± 10 ppm/K		+155 °C
	MCT 0603 AT	47 Ω - 511 kΩ	± 0.1 %	± 25 ppm/K; ± 15 ppm/K; ± 10 ppm/K		+155 °C
	MCU 0805 AT	47 Ω - 1 MΩ	± 0.1 %	± 25 ppm/K; ± 15 ppm/K; ± 10 ppm/K		+155 °C
	MCA 1206 AT	47 Ω - 1 MΩ	± 0.1 %	± 25 ppm/K; ± 15 ppm/K; ± 10 ppm/K		+155 °C