MMBTA70 is a Kexin SOT-23 package NPN general purpose transistor. Its maximum collector-emitter voltage is -40V, maximum emitter-base voltage is -4V and maximum collector current is -100mA.
The MMBTA70 is a general‑purpose NPN transistor. The datasheet lists its key features, absolute maximum ratings, and electrical characteristics for design reference. It also includes thermal specifications for different substrate types and the device marking.
Key specifications include collector‑emitter voltage, emitter‑base voltage, collector current limits, power dissipation, thermal resistance, and gain parameters. The document also specifies storage temperature range and typical output capacitance, helping engineers assess suitability for various applications.
| Collector‑emitter voltage (VCEO) | -40 V |
|---|---|
| Emitter‑base voltage (VBE0) | -4 V |
| Collector current (Ic) | -100 mA |
| Total device dissipation (FR‑5) at 25 °C | 225 mW |
| Derate above 25 °C (FR‑5) | 1.8 mW/°C |
| Thermal resistance, junction‑to‑ambient (FR‑5) | 556 °C/W |
| Junction temperature (Tj) | 150 °C |
| Storage temperature range (Tstg) | -55 °C to +150 °C |
The MMBTA70 is rated for a maximum collector‑emitter voltage of -40 V.
It can be stored from -55 °C up to +150 °C.
The device is marked with the code M2c.