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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