1803DFX – NPN Transistor – MD1803DFX – ST

Part number : MD1803DFX, 1803DFX

Function : High voltage NPN Power transistor

Package information : ISOWATT218FX  Type

Manufacturer : STMicroelectronics


1803DFX Transistor

General Product Information

The 1803DFX, MD1803DFX 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

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

1803DFX Datasheet PDF


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A2099 – PNP Transistor, -50V, 2SA2099 – Sanyo

Part number : A2099, 2SA2099

Functions : PNP Epitaxial Planar Silicon Transistors

Package information : TO-220ML Type

Manufacturer : Sanyo


A2099 transistor


High-Current Switching Applications

Relay drivers, lamp drivers, motor drivers.



1. Adoption of MBIT processes.

2. Large current capacitance.

3. Low collector-to-emitter saturation voltage.

4. High-speed switching.

A2099 datasheet pinout
Absolute Maximum Ratings at Ta=25°C

1. Collector-to-Base Voltage : VCBO = -50 V

2. Collector-to-Emitter Voltage : VCEO = -50 V

3. Emitter-to-Base Voltage : VEBO =-6 V

4. Collector Current : IC =-10 A

5. Collector Current (Pulse) : ICP = -13 A

6 .Base Current : IB = -2 A


A2099 Datasheet PDF


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