The IMH21 dual digital transistor has low saturation voltage, high current driving and other characteristics, which is suitable for mute circuits.
The IMH21 is a dual digit NPN transistor with a built‑in resistor type. It offers a very low saturation voltage (typical VCE(sat) = 40 mV) and can handle high collector currents up to 600 mA, making it suitable for audio muting circuits and other high‑current applications. The device is supplied in an SMT6 package that contains two DTC614T chips.
The datasheet lists absolute maximum ratings such as VCBO 20 V, VCEO 300 V, and a typical DC current gain (hFE) range of 820‑2700. Electrical characteristics are presented for various temperatures, and packaging specifications detail the dimensions and ordering code. An appendix notes usage restrictions for safety‑critical equipment and export control information.
| Typical saturation voltage VCE(sat) | 40 mV at IC/IB = 50 mA / 2.5 mA |
|---|---|
| Maximum collector current IC | 600 mA |
| Package type | SMT6 (SMT package) |
| Collector‑emitter breakdown voltage VCEO | 300 V |
| Collector‑base breakdown voltage VCBO | 20 V |
| DC current gain hFE (typical) | 820 – 2700 |
| Transition frequency fT (typical) | 150 MHz |
The typical VCE(sat) is 40 mV when the collector current is 50 mA and the base current is 2.5 mA.
The IMH21 can handle a collector current up to 600 mA.
It is supplied in an SMT6 surface‑mount package that contains two DTC614T chips.