More about VFR
Ultra-High Precision and Stability Metal Foil Resistors
- Bulk Metal® foil technology provides a very low TCR and exceptional long-term stability even in extreme temperatures
- SMD and through-hole, ultra-high precision resistors, current sense resistors, voltage dividers and networks
- New generation Z1 foil technology with a TCR to 0.05ppm/°C (0 to +60°C), stability of 0.0025% and tolerance as low as 0.005%
- Wide range of resistance values and custom values available
For their official website, please visit www.foilresistors.com
Who is Vishay Foil Resistors (VFR)?
More than four and a half decades after its invention by physicist Dr. Felix Zandman in 1962, Bulk Metal® Foil (BMF) technology still outperforms all other resistor technologies available today for applications that require precision, stability, and reliability. VFR’s unique, ultra-precision Bulk Metal Foil resistor products provide an extremely low-temperature coefficient of resistance (TCR) and exceptional long-term stability through temperature extremes.
The VFR portfolio comprises products in a variety of resistor configurations and package types to meet the needs of a wide range of applications: discrete resistors and resistor networks in surface mount and through-hole (leaded) configurations; customised chip resistor networks; precision trimming potentiometers; and discrete chips for use in hybrid circuits.
In 2000, VFR achieved a technological breakthrough with the introduction of Bulk Metal® Z-Foil. Products built on this revolutionary technology deliver an absolute temperature coefficient of resistance (TCR) of 0.2 ppm/°C. The lower the TCR, the better a resistor can maintain its precise value despite ambient temperature variations and self-heating when power is applied. Bulk Metal Foil resistors are essentially non-inductive (less than 0.08 µH) and not capacitive, providing a rise time of about 1 nanosecond, making it particularly suitable for high-frequency applications. Furthermore, its thermal EMF is less than 0.05 µV/°C making it particularly important for low-ohmic DC applications.
With the award-winning Bulk Metal® Foil resistors, designers can significantly reduce circuit errors and greatly improve overall circuit performance. By taking advantage of the overall stability, high-frequency performance, and reliability of Bulk Metal® technology we can produce customer-oriented products designed to satisfy challenging technical requirements