▼ Menu


Sensibly equivalent to:
Extras ▼


The 922 photocell is described as a cartridge type for use where a small size is required. The peak sensitivity at 800 nm is in the near infra-red. Uses include relay operation and light measurement.
The semi-circular cathode and RCA name.
Looking into the surface of the photocathode.
The cathode connection on the right and the at the other end the circular anode plate.
The anode connection.
The thin glass tube envelope is 21 mm in diameter and, including the base, is 43 mm tall.
Reference: Data-sheet. Type 922 was first introduced in 1945.


Absolute Maximum Operating Conditions
Light Control
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated March 14, 2021.
Return to Main Index