Thru-Hole DIP Switches
SERIES 78C
Right Angle Option
Right Angle
FEATURES
• Easy Access
• SPST Circuitry
• 2-10 and 12 positions available
• Sealed versions available
APPLICATIONS
Telecommunications, computers and
peripherals, instruments and controls.
Series 78C DIMENSIONS
.059
(1,50)
In inches (and millimeters)
.100±.004
(2,54±0,10)
.100±.004
(2,54±0,10)
LENGTH
SEE TABLE
.137
(3,50)
.272 MAX
(6,90)
ON
GH
.389
(9,90)
.063
(1,60)
.039
(1,0)
Ø.038±.002
(Ø0,97±0,05)
.055
(1,40)
.023
(0,60)
.100 TYP.
(2,54)
1 2 3 4 5 6 7 8
.006±.002
(0,15±0,05)
.100±.024
(2,54±0,60)
DIP Switches
DIP
17
.114 MIN
(2,90)
.244±.024
(6,20±0,60)
Unless otherwise specified, tolerances are ±0.008 (0,20)
SPECIFICATIONS
Mechanical
Mechanical Life:
2000 operations per switch.
Operation Force:
1000gf max.
Stroke:
2.0mm
Operation Temp:
-20°C to 70°C
Storage Temp:
-40°C to 85°C
Vibration Test:
MIL-STD-202F METHOD
201A.
Frequency: 10-55-10Hz/1 min.
Directions: X,Y,Z, three mutually
perpendicular directions.
Time: 2 hours each direction.
High reliability.
Shock Test:
MIL-STD-202F METHOD 213 B.
CONDITION A.
Gravity: 50G (peak value), 11 msec.
Direction and times: 6 sides and 3 Times
in each direction.
High reliability.
CIRCUITRY
Electrical
Electrical Life:
2000 operations per switch
24VDC, 25mA.
Non-Switching Rating:
100mA, 50VDC.
Switching rating:
25mA, 24VDC.
Contact Resistance:
50mΩ max. at initial.
Insulation Resistance:
(at 500VDC) 100mΩ
min.
Dielectric Strength:
500VAC/1 minute.
Capacitance:
5pF max.
Circuit: Single pole single throw.
(2,
3,
4, 5, 6, 7,
8,
9, 10, 12, POS AVAIL)
Materials
Base Contact:
Phospher bronze with gold
plating over nickel
Terminals:
Brass with gold plating over nickel
Nonconductive Parts:
Plastic UL94V-0
Potting Material:
Epoxy
Tape Seal:
Polyester film.
Soldering and Cleaning Process
For best results follow these recommendations:
Keep switch contacts in “OFF” position for all
operations.
Wave Sodering:
Recommended solder
temperature: 500°F (260°C) max 5 seconds.
Hand Soldering:
Use a soldering iron of 30
Watts or less, controlled at 608°F (320°C)
approximately 2 seconds while applying solder.
Cleaning:
Tape sealed versions withstand
cleaning processes.
ORDERING INFORMATION
Series
Number of Positions
RoHS compliant
78C08SRAT
Right Angle
S=
Top Tape Sealed, Blank=Unsealed
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
GRAYHILL [ GRAYHILL, INC ]
