# MMBTA44SI (Component)

## Description

Single Bipolar Transistors
MMBTA44SI
SOT\-89\-3\_L4\.5\-W2\.4\-P1\.50\-LS4\.0\-BR
LCSC Part Number: C55342643
JLCPCB Part Class: Extended Part
Manufactured by YFW\(佑风微\) 

## Component Details

- **Owner:** lcsc
- **Created:** 10/4/2026
- **Last Updated:** 10/4/2026
- **Visibility:** Public
- **Datasheet URL:** https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/bec3500eb3671caa492a172ed6d81b67cc7618f92d551f601d971b04f43c58c2\.pdf
- **JLCPCB Part Class:** Extended Part
- **LCSC Part Number:** C55342643
- **Standard Symbol:** NPN Transistor
- **Package or Case Code:** SOT\-89\-3\_L4\.5\-W2\.4\-P1\.50\-LS4\.0\-BR
- **Manufacturer Name:** YFW\(佑风微\)
- **Product Info Url:** https://www\.lcsc\.com/product\-detail/C55342643\.html
- **Part Type:** Transistor
- **Manufacturer Part Number:** MMBTA44SI

## Distributor Pricing (qty 1)

*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*

| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [LCSC](https://www.lcsc.com/product-detail/C55342643.html) | N/A | N/A |

- **Part Type:** Transistors
- **Sub-Type:** Bipolar
- **Manufacturer:** YFW
- **MPN:** MMBTA44SI
- **Mount Type:** PCB
- **Package / Case Code:** 89\-SOT
- **Pin Count:** 3
## Pins

| Pin | Name | Type |
|-----|------|------|
| 1 | B | Unspecified |
| 2 | C | Unspecified |
| 3 | E | Unspecified |

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*Generated from [https://flux\.ai/lcsc/mmbta44si\~bgw0](https://flux.ai/lcsc/mmbta44si~bgw0)*