Linear positive temperature sensitive resistors (+3300). Temperature coefficients are obtained by adjusting the film composition. LPT features platinum film for improved linearity, interchangeability and +300°C operating temp. Small sizes result in fast response times. The tempco should be placed in thermal contact with the matched pair of NPN (or PNP) transistors found in expo convertors.

The metal film tempcos have the advantage of not being as inductive as the wire-wounds and my experiments show they work every bit as well as the wire wounds.

These parts have full leads and are the same size as a 1/4 watt resistor.