Features
1) Built-In Biasing Resistors
2) Two DTC643T chips in one package.
3) Low saturation voltage, typically VCE(sat) =40mV at IC / IB=50mA / 2.5mA, makes these transistors ideal for muting circuits.
4) These transistors can be used at high current levels, IC=600mA.
5) Built-in bias resistors enable the configuration of an inverter circuit without connecting external input resistors (see equivalent circuit).
6) The bias resistors consist of thin-film resistors with complete isolation to allow negative biasing of the input. They also have the advantage of completely eliminating parasitic effects.
7) Lead Free/RoHS Compliant.

Application
    Muting circuit