File:OCP71, emitter side.jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file (1,202 × 1,869 pixels, file size: 385 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]
Description

OCP71 germanium phototransistor in clear glass SO2 case. This is otherwise identical to the OC71 PNP transistor, except for the clear case. The large square is the base substrate of n-type germanium. The blob on top of this is the indium pellet, used to form a layer of p-type germanium and thus the emitter. A similar, but larger, blob on the other side forms the collector. The contact below the blob is the wire connection to the base.[1]

Bought new, over the counter in a radio shop, in 2011!
Date
Source Own work
Author Andy Dingley
Permission
(Reusing this file)
I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
Other versions
Collector side
Collector side
Emitter side
Emitter side
Edge-on view of the Base, Emitter to the left and Collector to the right
Edge-on view of the Base, Emitter to the left and Collector to the right
OCP71 transistor

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current11:37, 20 September 2011Thumbnail for version as of 11:37, 20 September 20111,202 × 1,869 (385 KB)Andy Dingley (talk | contribs)== Summary == {{Information |Description=OCP71 germanium phototransistor in clear glass SO2 case. This is otherwise identical to the OC71 PNP transistor, except for the clear case. The large square is the base substrate of n-type germanium. The blob on to

You cannot overwrite this file.

File usage on other wikis

The following other wikis use this file:

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:OCP71,_emitter_side.jpg&oldid=898081007"