Z-Foil resistor operates in applications up to 200°C

Posted By : Nat Bowers
Z-Foil resistor operates in applications up to 200°C

Capable of operating over a temperature range from -55 to +200°C, the Z201HT ultra-high-precision through-hole Z-Foil resistor has been introduced by Vishay Precision Group. The resistor is suited for a variety of high-temperature applications, including geothermal measuring equipment, turbine engine control, and environmental test chambers in military, industrial, automotive, and down-hole drilling systems.

The Z201HT offers a resistance range from 10Ω-100kΩ, with any conceivable ohmic value within this range (to six digits) available without additional cost or lead time effect. The Z-Foil resistor also features a nominal temperature coefficient of resistance of ±1ppm/°C, +25°C reference, tight tolerances to ±0.01%, and load-life stability to 0.1% after 1,000 hours of rated power at +200°C. Additionally, the resistor features rated power to 0.1W at +200°C, a rise time of 1ns with effectively no ringing, a thermal stabilisation time of less than 1s (within 10ppm of steady state value), current noise of less than 0.010μVrms/V of applied voltage (at less than -40 dB), and a voltage coefficient of less than 0.1ppm/V.

The Z201HT features repetitive thermal cycling and short-term power overloads to ensure reliable operation in harsh environments. Offering a non-capacitive and non-inductive design of less than 0.08μH, the resistor withstands electrostatic discharges of at least 25kV.

"Resistors are the passive building blocks of an electrical circuit, which is why it's so important that Bulk Metal Foil technology provides much more control over element formation and stability than thick film, metal film, or thin film technologies do. When the application requires stability over time and load, initial accuracy, minimal change with temperature of more than 175°C, resistance to moisture, and a number of other characteristics, only Vishay Foil Resistors have all the attributes needed," commented Yuval Hernik, Ssenior Director of Application Engineering, Vishay Foil Resistors, Vishay Precision Group.

Available with RoHS-compliant, lead-free terminations or tin/lead-plated terminations, the Z201HT ultra-high-precision through-hole Z-Foil resistors are available now for sampling and in production quantities with lead times of six weeks for large orders.

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