This is one of the transistor types.
Part Number: D2539, 2SD2539
Function: 600V, 7A, NPN Transistor
Package: TO-220 Type
Manufacturer: Toshiba
Image
Description
This is 600V, 7A, SILICON NPN TRIPLE DIFFUSED MESA TYPE TRANSISTOR.
Features
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.
Pinout
Maximum Ratings ( Tc = 25 ºC )
1. Collector−Base Voltage : VCBO = 1500 V
2. Collector−Emitter Voltage : VCEO = 600 V
3. Emitter−Base Voltage : VEBO = 5 V
4. Base Current : IB = 3.5 A
5. Collector Power Dissipation : PC = 50 W
Equivalent Circuit
Applications:
1. Horizontal Deflection Output For Color TV
