TOSHIBA 2SD1525

Mfr. Part

2SD1525

Manufacturer

Toshiba Electronic Devices and Storage Corporation TAEC

Y-IC is a quality distributor of the Toshiba brand and we will provide you with the best products and services

Detailed Description

High voltage high current NPN bipolar power transistor in a TO-3PL through hole package. Commonly used for high power switching and amplification. Frequently selected for TV horizontal output stages CRT deflection circuits switch mode power supplies motor control and other industrial power designs. Listed under Integrated Circuits ICs Specialized ICs in some catalogs but functionally it is a discrete power transistor device

Key Features

NPN bipolar transistor for high voltage and high current use

Fast switching suitable for power conversion and deflection stages

Low saturation voltage for better efficiency and reduced heat

Large safe operating area for robust performance under stress

Rugged TO-3PL body for reliable heatsink mounting

Through hole leads for secure mechanical and electrical connection

Collector tab at the back for efficient heat transfer to a heatsink

Broad industry adoption and long field history

Key Advantages

Built on Toshiba’s proven power transistor process for reliability and consistency

Simple drive requirements compared to MOS devices in some topologies

Strong thermal path when mounted correctly to a heatsink

Widely available and supported by Y-IC with quick delivery

Y-IC inventory available quantity 1171 for faster fulfillment

Backed by Y-IC technical support and sourcing expertise

Packaging

Package type TO-3PL through hole power package

Package code 1109 as listed in some catalogs

Body material molded high temperature epoxy plastic with integrated metal heat spreader

Pin count 3 pins Base Collector Emitter plus a large mounting tab

Typical pin orientation when facing the front and leads downward left Base center Collector right Emitter verify against datasheet

Mounting method clamp or screw the device to a heatsink using the tab ensure good thermal contact with thermal compound

The back metal tab is normally connected to the Collector confirm on the datasheet before layout

Case size comparable to TO-3P slim long designed for high power dissipation and mechanical strength

Thermal characteristics optimized for heatsink use low junction to case thermal resistance when properly mounted and torqued

Electrical property categories include VCEO VCE saturation IC continuous IC pulse hFE gain ranges fT transition frequency SOA curves and switching energy see the datasheet for exact ratings and design limits

Lifecycle

Lifecycle status can vary by lot and region and is not confirmed here

If you need current and exact lifecycle information please contact our sales team on the Y-IC website

Equivalent or alternative models may be possible depending on required voltage current gain speed and package fit

Typical families to consider include Toshiba 2SD15xx series high voltage NPN power transistors in TO-3P or TO-3PL and similar power NPN parts from other manufacturers

Final substitution must match electrical limits mechanical fit and thermal performance Y-IC can provide a vetted cross reference on request

Key Application Areas

CRT TV horizontal output and line deflection stages

Switch mode power supplies primary or secondary switching depending on topology

Motor drivers and inverter stages using discrete BJTs

Audio power amplifier output stages in designs that specify BJTs

General purpose high voltage high current switching in industrial equipment and power electronics

Datasheet

Y-IC hosts the most authoritative datasheet and technical files for 2SD1525 on our product page

Download the datasheet here to get absolute maximum ratings electrical characteristics pinouts mechanical drawings and application notes

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