OC170: Difference between revisions
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(Created page with "The OC170 is a germanium PNP transistor. It has a breakdown voltage of about 20V and a maximum collector current of 10mA. Ft is about 60MHz. Beta is typically 150. * [http:...") |
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{{Discrete component | |||
Beta is typically 150. | |Model=OC170 | ||
|Part_nos= | |||
|Description=alloy-diffused Germanium PNP transistor | |||
|an=an | |||
|Used_in=321;661; | |||
}}. | |||
It has a breakdown voltage of about 20 V and a maximum collector current of 10 mA. | |||
Beta is typically 150, f<sub>t</sub> about 60 MHz. | |||
* [ | The OC170 was developed by Philips and introduced in the late 1950s. | ||
Due to [[Germanium transistors|tin whiskers growing inside the case]], OC170s are a common source of problems on equipment of the period. | |||
For more information, see the [[Germanium transistors]] page. | |||
==Links== | |||
* [https://www.vintage-radio.net/forum/showthread.php?t=5058 Thread on tin whiskers in OC170/OC171 @ vintage-radio.net] / [https://www.vintage-radio.net/forum/showthread.php?t=35171 Detail pictures] | |||
{{Part usage}} | |||
==Data== | |||
* [[Media:Mullard oc170.pdf|Mullard OC170 Datasheet]] | |||
[[Category:Transistors]] | |||
Latest revision as of 16:00, 8 January 2024
The OC170 is an alloy-diffused Germanium PNP transistor. It has a breakdown voltage of about 20 V and a maximum collector current of 10 mA. Beta is typically 150, ft about 60 MHz.
The OC170 was developed by Philips and introduced in the late 1950s.
Due to tin whiskers growing inside the case, OC170s are a common source of problems on equipment of the period. For more information, see the Germanium transistors page.
Links
Some instruments using part OC170
| Instrument | Manufacturer | Class | Model | Description | Introduced |
|---|---|---|---|---|---|
| 321 | Tektronix | Oscilloscope | 321 | Portable single channel scope | 1960 |
| 661 | Tektronix | Oscilloscope | 661 | Sampling scope | 1961 |