SDT101 series is low in price compared with SDT310 series which are conformed with JIS. KOA has shipped them since 1982. The approximate expression of temperature resistance characteristics has been provided and it can be used for circuit calculation at designing. The element, which is columnar, has no directionality. They perform excellent as wind-velocity sensors or as flow sensors utilizing self-heating (Photo 1).
The SDT101 series are mainly used for the temperature compensation of load cells, wind-velocity sensors utilizing self-heating, the cold junction compensation of thermo-couples, the flow measurement of electronic fuel injector of automotives, and the compensation of each temperature sensor.
Photo 1. SDT101, SDT310 and SDT73 series