This post explains for the semiconductor C3953.
The Full Part Number is 2SC3953.
The function of this semiconductor is NPN Epitaxial Planar Silicon Transistor.
The manufacturers of this product is Sanyo Semicon Device.
See the preview image and the PDF file for more information.
Preview images :
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Description
Applications
· High-definition CRT display video output, wide-band amplifier.
Features
· High fT : fT=400MHz.
· High breakdown voltage : VCEO=120Vmin.
· Small reverse transfer capacitance and excellent HF response : Cre=1.7pF/NPN, 2.2pF/PNP.
· Complementary PNP and NPN types.
· Adoption of FBET process.
· Micaless type : TO-126 plastic package
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