Transistor With Damper Diode

Item 2 sanyo horizontal output transistor 2sd1879 used in many tv sets sanyo horizontal output transistor 2sd1879 used in many tv sets. With similar transistors in a horizontal output stagethe internal diode is used as a damper diode.

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Silicon npn transistor darlington wdamper diode description.

Transistor with damper diode. This device is particularly suitable for use as an output stage in high power fast switching applications. Item 7 2sd1879 horizontal output with damper diode lot of 10 2sd1879 horizontal output with damper diode lot of 10. Philips semiconductors product specification silicon diffused power transistor bu2508df general description enhanced performance new generation high voltage high speed switching npn transistor with an integrated damper diode in a plastic full pack envelope intended for use in horizontal deflection circuits of colour television receivers.

In this case a uni directional tvs diode is sometimes added in series with the flyback diode connected anode to anode or cathode to cathode. Same sort of thingbut only one transistor involved. As andy aka pointed out sometimes a higher voltage than what is allowed by a diode alone is desired for faster turn off of the relay or other such as solenoids flyback transformers etc.

Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 348 mb. The process of integrating the two devices together tends to speed up of the recovery time of the diode which negates its purpose in high speed systems. This device is particularly suitable for use as an output stage in high power fast switching applications.

The nte256 is a silicon epitaxial planer npn darlington transistor in a to218 type package with an integrated baseemitter speedup diode. No ratings or reviews yet. The nte256 is a silicon epitaxial planer npn darlington transistor in a to218 type package with an integrated baseemitter speedup diode.

At the end of scan the transistor switched off and the magnetic field collapses for a half cycle of operation this then forces the semiconductor damper diode into conduction where it effectively acts like a switch and results in a substantially linear scan on the left hand side of the raster. In high speed circuits a separate damper diode is employed while low speed circuits might use a transistor having an integrated damper diode on the same silicon.

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