Preliminary Data

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to

change without notice.

May 2007

Rev 1

1/8

8

Order codes

Part Number

Marking

Package

Packaging

2STF1550

1550

SOT-89

Tape & reel

2STN1550

N1550

SOT-223

Tape & reel

2STF1550

2STN1550

Low voltage fast-switching NPN power bipolar transistors

General features

■

Very low collector-emitter saturation voltage

■

High current gain characteristic

■

Fast switching speed

■

Surface mounting devices in medium power

SOT-89 and SOT-223 packages

■

In compliance with the 2002/93/EC European

Directive

Applications

■

Emergency lighting

■

LED

■

Motherboard & Hard Disk drive

■

Mobile equipment

■

Battery charger

■

Voltage regulation

Description

The 2STF1550 and 2STN1550 are NPN

transistors manufactured using new “PB-HCD”

(Power Bipolar High Current Density) technology.

The resulting transistor shows exceptional high

gain performances coupled with very low

saturation voltage.

Internal schematic diagram

SOT-89

1

2

2

3

SOT-223

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