Amphenol • HE7/HE9
4
254 DF / HE901
The 254 series is a double sided, 2,54 [.100] pitch, range of connectors for printed circuit boards. Both direct or indirect connections could be made: - For direct connection, the female receptacle mates with a 1,6 ± 0,2 [.063 ± .008] printed circuit board - For indirect connection, the female receptacle mates with the male plugs
A well-proven technology The 254 series uses a 2,54[.100] pitch, double sided. The arrangements available are from 2x13 contacts to 2 x 55 contacts. The contact technology is based on a turning fork concept.
A simple choice of solutions, adaptable to all type of configurations For motherboard: female receptacles with straight PC tails (Y). For extender boards: female extender with right angle PC tails (YC). For mounting on cables: female receptacle with solder cup contacts (Z).
In case of direct connection: the female receptacle mates directly with a 1,6 [.063] printed circuit board. In case of indirect connection, the male plug with SMT contacts (U) is used.
Various polarization system are available (for both direct or indirect connection).
The 254 series complies with here below standards:
NFC/UTE 93-423 HE901
QUICK SELECTION GUIDE
Connector 254 DFN / HE901
Polarization system
Signal contacts
Number of contacts
Female
Male
2 x 13 2 x 19 2 x 25 2 x 31 2 x 37 2 x 43 2 x 49 2 x 50 2 x 55
For direct connection
Sraight PC tails Y
+
Solder cup Z
SMT (U)
For indirect connection 254DFD
Right angle PC tails (YC, for extender)
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All dimensions are given for information only and are in mm [inch], except as otherwise specified
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