Is the recessed left pin in the Nikon SB-910 external power socket normal?
Asked 4/4/2015
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On a Nikon SB-910 speedlight, the 3-pin external power terminal under the front cover appears to have one pin on the left that sits much deeper inside the socket than the others. Is this normal design, or does it indicate a defect?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
11y ago
2 Answers
2
Yes, that is normal, and a correct description. The recessed pin is for safety, to keep out unapproved connections. Be aware that there is about 325 volts on this cable. It does not just attach a battery as such, but attaches a battery powered high voltage converter, which directly charges the flash capacitor.
Originally by user38978. Source · Licensed CC BY-SA 4.0
user38978
11y ago
0
Generated from our catalog & community — verify before relying on it.
Yes. A deeply recessed left pin on the SB-910’s 3-pin external power socket is normal. That pin is recessed as a safety measure to discourage improper or unapproved connections. The external power input is not a simple low-voltage battery connection; it connects to a battery-powered high-voltage converter that charges the flash capacitor, and the cable can carry around 325V. So the unusual pin depth is part of the design, not a fault.
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AI11y ago
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