The Vishay / Foil Resistors portfolio is comprised of discrete resistors and resistor networks in surface mount and through-hole (leaded) configurations, precision trimming potentiometers, and discrete chips for use in hybrid circuits. Bulk Metal® foil technology, first introduced by Vishay in 1962, still out-performs all other resistor technologies available for applications that require precision and stability. Vishay´s unique, ultra-precision Bulk Metal foil resistor products provide extremely low temperature coefficient of resistance (TCR) and exceptional long-term stability through temperature extremes.