This is information on a product in full production.

May 2014

DocID022364 Rev 5

1/9

9

STR1550

High voltage fast-switching NPN power transistor

Datasheet

Figure 1. Internal schematic diagram

Features

• Miniature SOT-23 plastic package for surface

mounting circuits

• Tape and reel packaging

• The PNP complementary type is STR2550

Applications

• LED driving

Description

This device is a high voltage fast-switching NPN

power transistor, manufactured using diffused

collector planar technology for high switching

speeds.

It employs a base island structure with planar

edge termination to enhance switching speeds,

while maintaining a wide RBSOA.

SOT-23

1

3

2

Table 1. Device summary

Order code

Marking

Package

Packing

STR1550

1550

SOT-23

Tape and reel

www.st.com