The 35Z5 is a half wave rectifier for heater chain service. The heater current is 150 mA but the heater has a centre tap suggesting a dual use for 300 mA heater chains as well. The maximum reservoir capacitor is 40 μF and the surge limiting series resistance must be at least 100 Ohms.
The anode has a small front to back dimension.
Face on the anode is broad and the plates are fixed together by punching rectangular holes in one plate and pushing lugs formed in the other plate into the holes and then folding them over to lock them.
The thin glass tube envelope is 27 mm in diameter, and excluding the IO base pins is 68 mm tall.
Pin Connections
IO |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |

|
- |
h |
hct |
- |
a |
- |
h |
k |
Absolute Maximum Operating Conditions
Rectifier |
Vh |
Ah |
Va |
mAa |

|
35 |
0.15 |
235 |
100 |
Thanks to Frank Philipse for supplying the above datasheet
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