MMST5551Q-7-F Datasheet & Equivalents
NPN
SOT-323
General Purpose
DIODES
VCEO
160V
Ic Max
200mA
Pd Max
200mW
hFE Gain
250
Quick Reference
The MMST5551Q-7-F is a NPN bipolar junction transistor in a SOT-323 package, manufactured by DIODES. It supports a breakdown voltage of 160V and continuous collector current of 200mA. It is widely used in switching and amplification circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | DIODES | Original Manufacturer |
| Package | SOT-323 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| Category | Single | Configuration |
| Collector-Emitter Voltage (VCEO) | 160V | Max breakdown voltage |
| Collector Current (Ic) | 200mA | Max current handling |
| Power Dissipation (Pd) | 200mW | Max thermal limit |
| DC Current Gain (hFE) | 250 | Base signal amplification ratio |
| Transition Frequency (fT) | 100MHz | Max operating frequency |
| Saturation Voltage (VCEsat) | 150mV | Voltage drop when fully ON |
| Emitter-Base Voltage (Vebo) | 6V | Max emitter-base breakdown |
| Collector Cutoff Current | 50nA | Leakage current when OFF |
| Operating Temp | -55℃~+150℃ | Safe junction temperature range |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | IC | hFE | Pd | Manufacturer / Datasheet |
|---|---|---|---|---|---|---|---|
| MMST5551-7-F | NPN | SOT-323 | 160V | 200mA | 250 | 200mW | DIODES 📄 PDF |
| MMSTA42 | NPN | SOT-323 | 300V | 200mA | 60 | 300mW | JSCJ 📄 PDF |
| MMSTA42-7-F | NPN | SOT-323 | 300V | 200mA | 40 | 200mW | DIODES 📄 PDF |