MMSTA05/MMSTA06 is an NPN small signal surface mount transistor, with the following features: (1) Epitaxial planar die construction; (2) Complementary PNP type available (MMSTA55/MMSTA56); (3) Ideal for medium power amplification and switching; (4) Ultra-small surface mount package
The MMSTA05 and MMSTA06 are NPN small‑signal surface‑mount transistors offered in an ultra‑small SOT‑323 molded‑plastic package. They are intended for medium‑power amplification and switching applications and are available as complementary PNP types (MMSTA55/MMSTA56).\n\nKey specifications include collector‑base voltage up to 80 V, collector‑emitter voltage up to 80 V, continuous collector current of 500 mA, power dissipation of 200 mW, and a thermal resistance of 625 K/W. The devices operate from –55 °C to +150 °C and are marked K1H (MMSTA05) or K1G (MMSTA06).
| Collector‑Base Voltage (V_CBO) | 60 V (MMSTA05) / 80 V (MMSTA06) |
|---|---|
| Collector‑Emitter Voltage (V_CEO) | 60 V (MMSTA05) / 80 V (MMSTA06) |
| Emitter‑Base Voltage (V_EBO) | 4.0 V |
| Continuous Collector Current (I_C) | 500 mA |
| Power Dissipation (P_D) | 200 mW |
| Thermal Resistance, Junction‑to‑Ambient (RθJA) | 625 K/W |
| Operating Temperature Range | -55 °C to +150 °C |
The continuous collector current rating is 500 mA.
They are supplied in a SOT‑323 molded‑plastic surface‑mount package.
The thermal resistance is specified as 625 K/W.