PC BOARD CONNECTORS
740 SERIES
s FEATURES
• Various types of headers are available: one side
shrouded, both sides shrouded, with simplified latch,
and box type.
• The connector having a simplified latch prevents the
connector from working loose because of vibration.
• The mini header has a clip to prevent incorrect
insertion.
• A 740 series connector with a power terminal (2 in 1)
for SCSI/IDE interface unit connections is also
available.
s SPECIFICATIONS
1. Standard type
Specification
Item
Operating temperature range
–55°C to +105°C
Current rating
DC 1 A
Voltage rating
AC 250 V
Contact resistance
15 mΩ max. (DC 6 V, 0.1 A)
s MATERIALS
Insulation resistance
1000 MΩ min. (DC 500 V)
Dielectric strength
AC 500 V for 1 minute
1. Standard type
Insertion force
3.5 kg max. (10 pins), 10.5 kg max. (30 pins)
Withdrawal force
0.25 kg min. (10 pins), 1.0 kg min. (30 pins)
Insulating material
Polyester (UL94V-0)
Applicable wire
Flat cable: 1.27 mm (0.050 in.) pitch
AWG #28 (stranded) or AWG #30 (solid)
Conductor
Copper alloy
Applicable PC board (standard)
1.6 mm
Plating
Item
Materials
Contact
Terminal
2. Power connector integrated type
Item
Specification
Operating temperature range
DC 1 A (signal pin)
DC 5 A (power pin)
Voltage rating
AC 250 V
Contact resistance
15 mΩ max. (signal pin, DC 6 V, 0.1 A)
10 mΩ max. (power pin, DC 6 V, 0.3 A)
Insulation resistance
1000 MΩ min. (DC 500 V)
Dielectric strength
AC 500 V for 1 minute (signal pin)
AC 1000 V for 1 minute (power pin)
Insertion force
50-contact signal pin: 17.5 kg max.
40-contact signal pin: 14.0 kg max.
Power pin (reference value): 8.8 kg max.
Withdrawal force
50-contact signal pin: 2.0 kg max.
40-contact signal pin: 1.5 kg max.
Power pin (reference value): 0.8 kg max.
Applicable PC board (standard)
Palladium
2. Power connector integrated type
–55°C to +105°C
Current rating
Gold
1.6 mm (0.062 in.) (through hole type)
Specifications
subject to change
Item
Materials
Insulating material
Through hole type:
Polyester (UL94V-0)
SMT type: PPS (UL94V0)
Conductor
Copper alloy
Signal pin contact
Plating
Dimensions are in millimeters (inches)
Gold
Signal pin tail
Palladium
Power pin
Solder
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