This post describes for the semiconductor 3DD127D.
The function of this semiconductor is 400V, 2.5A, NPN Transistor.
The package is TO-126F Type
The manufacturer of this parts is Huajing Microelectronics.
See the preview image and the 3DD127D Datasheet PDF file for more information.
Pinout
Description
The 3DD127D is a silicon NPN power switching transistor, which uses a planar process, a partial pressure ring terminal structure and a few child life control technology, integrated active anti-saturation network, improve the product breakdown voltage, switching speed and reliability.
1 page
Features
1. Low switching losses
2. Reverse leakage current is small
3. High temperature characteristics
4. Suitable switching speed
5. High reliability
Applications:
1. Compact electronic energy saving lamp
2. Electronic ballast
3. General power switch circuit
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