STR1550 STMicroelectronics Transistor BJT NPN (SOT23 (3-Pin)) In Stock

Name: STR1550
Brand: STMicroelectronics
SKU: STR1550
Availability: InStock

Use the download button to access the STR1550 schematic symbol, PCB footprint, and 3D model.

ACTIVETransistor BJT NPNVerified May 2026

Package / Visual Reference

STR1550SOT23 (3-Pin)

Quick Facts

Manufacturer: STMicroelectronics
Package: SOT23 (3-Pin)
Pin Count: 3
Lifecycle: ACTIVE
Datasheet: STR1550 Datasheet PDF
Category: Transistor BJT NPN
Price: From $0.0766(MOQ 100)
Temp Range: ?°C to 150.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the specifications of STR1550?

Factory Lead Time	14Weeks
YTEOL	9
Collector Current-Max (IC)	0.5A
Collector-Emitter Voltage-Max	500V
Configuration	SINGLE
DC Current Gain-Min (hFE)	10
JESD-30 Code	R-PDSO-G3
JESD-609 Code	e3
Number of Elements	1
Package Body Material	PLASTIC/EPOXY
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE
Peak Reflow Temperature (Cel)	260
Polarity/Channel Type	NPN
Power Dissipation-Max (Abs)	0.5W
Surface Mount	YES
Terminal Finish	Matte Tin (Sn) - annealed
Terminal Form	GULL WING
Terminal Position	DUAL
Transistor Application	AMPLIFIER
Transistor Element Material	SILICON
Package	SOT23 (3-Pin)

Compliance & Regulatory

RoHS Status	Compliant
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
Country of Origin	Mainland China

Where can I find the STR1550 datasheet?

STR1550 Datasheet Download

Official datasheet from STMicroelectronics

What are equivalent replacements for STR1550?

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What is the price of STR1550?

STR1550 is priced from $0.0766 USD depending on quantity. Submit an RFQ on FindMyChip for the best current pricing from authorized China distributors.

Is STR1550 in stock?

STR1550 is listed as in stock at FindMyChip, sourced from authorized distributors, and ships worldwide with typical 3-7 business day lead time. Submit an RFQ for current quantity pricing, MOQ, and confirmed availability.

Where can I buy STR1550?

You can buy STR1550 from FindMyChip, a B2B electronic component platform sourcing from China distributors. We offer competitive pricing and low MOQ for STR1550 from STMicroelectronics.

What is the datasheet for STR1550?

The official STR1550 datasheet from STMicroelectronics contains full specifications including pin configuration, electrical characteristics, and application notes. Download it directly from the datasheet section above.

What package does STR1550 come in?

STR1550 is available in SOT23 (3-Pin) packaging. See the package diagram and pinout above for detailed dimensional information.

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.

Aug 6, 2026

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.

Aug 6, 2026

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.

Aug 4, 2026

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.

Aug 4, 2026

Why Buy from FindMyChip

Authorized Source

Verified supply chain with full traceability & inspection

Competitive Pricing

Factory-direct from China distributors, low MOQ

Fast Shipping

DHL Express 3–5 days · FedEx/UPS 5–7 days worldwide

Quality Guaranteed

30-day replacement for defective parts, no questions asked

About STMicroelectronics

STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.

View all STMicroelectronics parts →

More from STMicroelectronics

STM32H563IIK6

BGA

Integrated Circuit

STM32MP135CAG3

BGA

Integrated Circuit

STEF512SRIPUR

Other

Integrated Circuit

STM32MP131FAF7T

BGA

Integrated Circuit

TN1605H-8G

Other

SCR

STM32MP135FAG7T

BGA

Integrated Circuit

AvailabilityIn Stock

Reference Price (USD)

From $0.0766

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
100+	$0.1268	$12.68
1000+	$0.1207	$120.70
10000+	$0.1090	$1090.00
12000+	$0.0794	$952.56
24000+	$0.0779	$1870.56
48000+	$0.0766	$3677.28

pcs

Unit price: $0.1268 · Total: $12.68

In Stock · 24h Response · Worldwide Shipping

Direct Contact

WhatsApp Inquiry Email RFQ

Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”

Marco Rossi

CTO, AutoDrive Systems, Italy

STR1550 STMicroelectronics Transistor BJT NPN (SOT23 (3-Pin)) In Stock

What are the specifications of STR1550?

Compliance & Regulatory

Where can I find the STR1550 datasheet?

What are equivalent replacements for STR1550?

Frequently Asked Questions

What is the price of STR1550?

Is STR1550 in stock?

Where can I buy STR1550?

What is the datasheet for STR1550?

What package does STR1550 come in?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About STMicroelectronics

More from STMicroelectronics

You May Also Like