Extreme-stability resistors for signal-conditioning and precision

November 05, 2014 // By Graham Prophet
TT Electronics has introduced advanced metal film precision resistors using Water Insoluble Nitride (WIN) technology. These thin film chip resistors provide extremely high levels of reliability and stability for precision and signal conditioning applications.

The WIN series resistor features a Water Insoluble Nitride film to resist the moisture vulnerability problems of nichrome and passivated nichrome resistor film technologies. Until now this has only been possible using high cost military grade tantalum nitride products. This inherent moisture resistance means users do not need to rely on expensive assembly-level sealing or encapsulation production processes.

The new WIN series also delivers highly stable, predictable life drift and high reliability even in exceptionally humid or polluted environments or in the event of damage to the component's coating. This is due to its ability to self-passivate by forming a very stable oxide layer, which protects the resistor from moisture failures associated with nichrome resistor films.

Available in 0603, 0805 and 1206 sizes at 0.1W, 0.25W and 0.33W respectively, the series offers resistance values from 10R to 1M0 with a tolerance of +0.1% and TCR of +25ppm/°C. These features combined with sulphur-resistant terminations make the WIN series a suitable choice for mission critical applications in harsh environments in medical, aerospace and industrial fields.

TT Electronics; www.ttelectronicsresistors.com/datasheets/WIN.pdf