Passives

Thin film resistors provide high precision and tight TCR

1st July 2020
Mick Elliott

Thin film wraparound resistors from Vishay are ideal for use in oil industry precision applications requiring low noise, long term stability under high temperature, ultra-low temperature coefficient of resistance, and low voltage coefficient.

They are also used in military, telecommunications and industrial applications.

The devices are in stock at New Yorker Electronics. 

The high temperature Vishay Dale PLTT has an operating temperature range from -55°C to 215°C. The series has stable film and performance characteristics and has a very low noise and voltage coefficient (less than -30 dB, 0.1 ppm/V). 

The PLTT0603 case size is qualified to AEC-Q200 for automotive applications. It has anti corrosion resistant film with special passivation method (SPM) and is UL 94 V-0 flame resistant.

The surface mount resistor has wraparound gold over nickel barrier terminations. 

The PATT Precision Automotive High Temperature Thin Film Chip Resistor is also AEC-Q200 Qualified.

The terminations consist of an adhesion layer, a leach resistant nickel barrier and gold plating that is compatible with high temperature solder systems. 

It’s key benefits include its wide operating temperature range up to 215°C, its absolute TCR of ± 5 ppm/°C, its 250Ω to 3MΩ resistance range, a low noise of less than - 35dB and its voltage range of between 75V and 200V.

The resistors have an absolute TCR of ± 25 ppm/°C with tolerances to ± 0.1 %

Resistance range is 2.75 Ω to 301 kΩ resistance range.

Applications include high-temperature automotive applications, under the hood applications, high-precision oil/gas exploration, military, telecommunications and industrial applications.

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