This document describes the features of the MMST4124 NPN small signal surface mount transistor. It features an epitaxial planar die construction, complementary PNP type available (MMST4126), ideal for medium power amplification and switching, and an ultra-small surface mount package.
This document is a datasheet for the Diodes MMST4124, an NPN small signal surface mount transistor. It is designed for medium power amplification and switching applications and is available in an ultra-small surface mount package. The device features an epitaxial planar die construction and is compatible with a complementary PNP type (MMST4126).
The datasheet provides comprehensive technical specifications including maximum ratings such as a collector-base voltage of 30V and a continuous collector current of 200mA. It also lists electrical characteristics for both OFF and ON states, including DC current gain, saturation voltages, and small signal parameters like output capacitance and current gain-bandwidth product.
| Collector-Base Voltage | 30 V |
|---|---|
| Collector-Emitter Voltage | 25 V |
| Emitter-Base Voltage | 5.0 V |
| Collector Current - Continuous | 200 mA |
| Power Dissipation | 200 mw |
| Operating and Storage Temperature Range | -55 to +150 °C |
| DC Current Gain | 10 to 360 |
| Collector-Emitter Saturation Voltage | 0.30 V |
| Current Gain-Bandwidth Product | 300 MHz |
It is ideal for medium power amplification and switching applications.
Yes, a complementary PNP type is available, specifically the MMST4126.
The approximate weight of the component is 0.006 grams.