GERMANIUM DIODES
Data for the following Diodes: OA70,OA71,OA79 and OA81.
The following table lists the parameters for early Germanium Diodes.
| Type |
Resistance at +1v |
Resistance at 10v |
Resistance at 30v |
Reverse Voltage |
Forward Current |
Peak Forward Current |
| GD3 |
350R max |
50K min |
- |
-25v max |
30ma |
100ma |
| GD4 |
350R max |
250K min |
- |
-50v max |
30ma |
100ma |
| GD5 |
350R max |
500K min |
300k min |
-85v max |
30ma |
100ma |
Germanium Diodes Later Series
| Type |
Max Inverse Voltage Peak |
Average |
Max Forward Current Peak |
Average |
| OA70 |
22.5v |
15v |
150ma |
50ma |
| OA71 |
90v |
60v |
150ma |
35ma |
| OA79 |
45v |
30v |
100ma |
4 ma |
| OA81 |
115v |
90v |
150ma |
50ma |
Germanium Diode Equivalents
| Brimar |
GEC |
BTH |
Mullard |
- |
- |
- |
- |
- |
| GD3 |
GEX33 |
CG5E |
- |
- |
- |
- |
- |
- |
| GD3 |
GEX35 |
CG12E |
OA60 |
- |
- |
- |
- |
- |
| GD3 |
GEX99 |
- |
- |
- |
- |
- |
- |
- |
| GD4 |
GEX44 |
- |
- |
- |
- |
- |
- |
- |
| GD4 |
GEX44/1 |
CG1E |
- |
- |
- |
- |
- |
- |
| GD4 |
GEX45 |
CG6E |
- |
- |
- |
- |
- |
- |
| GD5 |
GEX54 |
CG1E |
- |
- |
- |
- |
- |
- |
| GD5 |
GEX55 |
CG4E |
OA61 |
- |
- |
- |
- |
- |
Last updated 3.7.2004
2003 © Maurice Woodhead
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