ProjectsPricingInsights

MMST5551 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

MMST5551 product

MMST5551

Transistors - Bipolar (BJT) - Single

NPNBJTSOT-323Amplifier

The MMST5551 is a surface-mount NPN bipolar junction transistor (BJT) optimized for medium power amplification and switching tasks.

Best for

  • Medium power amplification
  • General switching circuits

Avoid if

  • Applications requiring power dissipation exceeding 200mW
  • High-frequency RF applications beyond 300MHz

Check before use

  • Thermal derating at high ambient temperatures
  • Saturation voltage requirements for switching efficiency

Key specifications

VCEO
160 V
IC
600 mA
hFE
100 - 300
Package
SOT-323

Compliance & Environment

RoHS
RoHS Compliant
REACH
-
MSL
MSL 1
ECCN
-
HTSUS
-

Application

General PurposePower Switching

Datasheet

8aa0ba64fd8b9e3c83e67f2ea8c16982_2201131400_Yangzhou-Yangjie-Elec-Tech-MMST5551_C968404.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for MMST5551: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
Get Files
PCB Footprint
Land pattern for PCB layout
Get Files
3D Model
STEP file for mechanical design
Get Files
KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
Generate library

Login required · CAD models billed separately as an add-on

Where to Buy

Real-time and catalog pricing from verified distributors

Live prices updated on demand · Catalog (~) prices may differ

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

The MMST5551 is an NPN BJT designed for general-purpose medium power amplification and switching applications, housed in a compact SOT-323 surface-mount package.