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What does a connector datasheet (such as page 2 of this datasheet ) mean by

"Current Rating: 2.1 A (Gold plating, 6 adjacent contacts)"

Does it mean

  • Each pin can handle 2.1 A each, when up to 6 adjacent contacts are carrying current? (so a total of 12.6 A per connector spread across 6 pins)
  • Up to 6 adjacent contacts can carry a total of 2.1 A? (so 350 mA per contact)
  • Up to 6 adjacent contacts can carry a total of 2.1 A out and 2.1 A back? (so 700 mA per contact)
  • Something else?

(Related, but I suspect a slightly different question: Current Rating of JST connector PER PIN)

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2 Answers 2

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Your first interpretation is correct. The contract resistance will generate a little heat and with 2.1 A per contact the middle ones will get hot.

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    \$\begingroup\$ actually: none of the above. That are the specs of an endurance test, not current ratings, as david interprets them. But I'd agree with your interpretation of the test description \$\endgroup\$ Oct 23, 2020 at 22:42
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Those are the product test specifications. The actual product data says it's 2.1A per pin (but with 2 pins powered).

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