D2539 PDF Datasheet – 2SD2539, NPN Transistor – Toshiba

This post explains for the transistor.

The Part Number is D2539, 2SD2539.

The function of this semiconductor is 600V, 7A, NPN Transistor.

The package is TO-3P Type

Manufacturer: Toshiba Semiconductor


C5404 datasheet transistor


A NPN transistor is a type of bipolar junction transistor (BJT) that consists of two n-type semiconductor materials separated by a single p-type material.

The NPN transistor is used to amplify or switch electronic signals and is widely used in many electronic circuits. It works by controlling the current flow between the collector and emitter terminals through the base terminal.

When a small current is applied to the base, it controls a much larger current between the collector and emitter, making the NPN transistor an effective amplifier or switch.


1. High Voltage : VCBO = 1500 V
2. Low Saturation Voltage : VCE (sat) = 5 V (Max.)
3. High Speed : tf = 0.3 µs (Typ.)
4. Bult-in Damper Type
5. Collector Metal (Fin) is Fully Covered with Mold Resin.

D2539 transistor

Absolute maximum ratings ( Ta=25°C )

1. Collector to Base Voltage: Vcbo = 1500 V
2. Collector to Emitter Voltage: Vceo = 600 V
3. Emitter to Base Voltage: Vebo = 5 V
4. Collector Current: Ic = 7 A
5. Total Dissipation : Pc = 50 W
6. Junction Temperature: Tj = 150°C
7. Storage Temperature: Tsg = -55 ~ +150°C

D2539 PDF Datasheet

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