1803DFX Datasheet PDF – 700V, 10A, NPN Transistor – ST

Part Number: MD1803DFX, 1803DFX

Function: 700V, 10A, NPN Power Transistor

Package: ISOWATT218FX  Type

Manufacturer: STMicroelectronics


1803DFX Transistor



This is 700V, 10A, High Voltage NPN Power Transistor.

The MD1803DFX, 1803DFX is manufactured using Diffused Collector in Planar Technology adopting new and enhanced high voltage structure. The new MD product series show improved silicon efficiency bringing updated performance to the Horizontal Deflection stage.


1803DFX datasheet pinout

Product Summary and


1. State-of-the-art technology : – Diffused collector “enhanced generation”

2. More stable performance versus operating temperature variation

3. Low base drive requirement

4. Tighter hFE range at operating collector current

5. Fully insulated power package U.L. compliant

6. Integrated free wheeling diode

7. In compliance with the 2002/93/EC European directive


Absolute maximum ratings ( Ta=25°C )

1. Collector to Base Voltage: Vcbo = 1500 V

2. Collector to Emitter Voltage: Vceo = 700 V

3. Emitter to Base Voltage: Vebo = 10 V

4. Collector Current: Ic = 10 A

5. Total Dissipation : Ptot = 57 W ( Tc=25°C )

6. Junction Temperature: Tj = 150°C

7. Storage Temperature: Tsg = -65 ~ +150°C



1. Horizontal deflection output for TV


1803DFX Datasheet PDF


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