• The triangular mark (▼) and contact num-
bers are not printed on the connectors.
Use the raised reference point used to
prevent reverse insertion as a guide when
designing boards.
• On the mating side, the row of terminals on the
raised reference point side are called row a, and
the row on the other side is called row b. The
numbers are in the order shown.
• XH4A Half-pitch Connectors are integrated
male/female connectors. The contact numbers
on row a correspond to the contact numbers on
row b. Be careful when using these connectors
because they function slightly differently from
separate male and female connectors (i.e.,
Plugs and Sockets).
■ Precautions
Correct Use
PCB settings
XH4A Half-pitch Connectors are male/
female connectors with integrated plugs
and sockets.
Refer to Contact Numbers above when
designing boards.
Mating Compatibility
XH4 Half-pitch Connectors do not mate
with XH2 or XH3 Half-pitch Connectors.
Soldering Conditions
Straight DIP Terminals (Automated Solder-
ing)
(1) Soldering temperature: 250±5°C
(2) Continuous soldering time: Within 5±1 s
Be sure to wash the board after automated
soldering is completed.
SMT Terminals
Recommended reflow conditions
Pre-heat temperature: 150±10°C
Pre-heat time: 60 to 120 s
Soldering temperature: 200 to 240°C
Soldering time: Within 30 s
(Within 10 s at the maximum tempera-
ture of 240°C)
