Photomultipliers
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Additional Information
Sockets
Sockets are supplied with mounting flanges as standard. Unflanged versions with standard or with contacts suitable for direct soldering to a pcb are also available.
The range of ET Enterprises' sockets with general dimensions is shown on the pages accessed from the table below; engineering drawings of each socket type can be supplied on request.
options
- no mounting flange
- contacts for mounting directly to a pcb
- non-tarnishing gold plated contacts
precautions
Sockets and caps must not come in contact with any of the following:
- acetone
- cyanoacrylate adhesives
- chloroform
- dichloromethane
Only alcohol is recommended for cleaning.
Adhesives suitable for sockets and caps are epoxy resins, polyurethanes and silicones.
When inserting or removing a photomultiplier from a socket, maintain the tube axis at right angles to the plane of the socket as shown in the diagram below:

You must not, under any circumstances, solder directly to the pins of a hardpin photomultiplier. Flying leads may be soldered directly to a printed circuit board provided adequate heat sinking is used
to protect the photomultiplier .
Soldering temperatures must not exceed 270 °C.
Electrical connections must not be made to socket contacts marked ic in the photomultiplier pin connection diagrams.
| photomultiplier diameter | socket type | |
| hard pin (B) | capped (KB) | |
| side window | B11A | |
| 19 mm (¾") | B12D | |
| 25 mm (1") | B14B | B12A |
| 30 mm (1⅛") | B12A | |
| 38 mm (1½") | B14B | |
| 52 mm (2") | B15B | B14A |
| B19A | B20 | |
| B21 | ||
| 78 mm (3") | B19A | B14B |
| B20 | ||
| 90 mm (3½") | B14A | |
| 130 mm (5") | B15B | B14A |
| B19A | B20 | |
| 200 mm (8") | B20 | |
| 280 mm (11") | B20 | |
Contact us for further information.
Request a quotation.
