Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
DIP Switches
SERIES 78C
Right Angle Option
Thru-Hole DIP Switches
Right Angle
FEATURES
• Easy Access
• SPST Circuitry
• 2-10 and 12 positions available
• Sealed versions available
APPLICATIONS
Telecommunications, computers and
peripherals, instruments and controls.
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.
Electrical
Electrical Life: 2000 operations per switch
24VDC, 25mA.
Non-Switching Rating: 100mA, 50VDC.
Switching rating: 25mA, 24VDC.
Contact Resistance: 50m: max. at initial.
Insulation Resistance: (at 500VDC) 100m:
min.
Dielectric Strength: 500VAC/1 minute.
Capacitance: 5pF max.
Circuit: Single pole single throw.
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.
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.
CIRCUITRY
Unless otherwise specified, tolerances are ±0.008 (0,20)
Series 78C DIMENSIONS In inches (and millimeters)
Series
Number of Positions
RoHS compliant
78C08SRAT
Right Angle
S= Top Tape Sealed, Blank=Unsealed
ORDERING INFORMATION
Ø.038r.002
(Ø0,97r0,05)
.100r.004
(2,54r0,10)
.100r.004
(2,54r0,10)
.059
(1,50)
.055
(1,40)
.039
(1,0)
.272 MAX
(6,90)
.063
(1,60)
.006r.002
(0,15r0,05)
.100r.024
(2,54r0,60)
.244r.024
(6,20r0,60)
ON GH
12345678
.137
(3,50)
.389
(9,90)
.023
(0,60)
.114 MIN
(2,90)
.100
(2,54)
TYP.
LENGTH
SEE TABLE
(2, 3, 4, 5, 6, 7, 8, 9, 10, 12, POS AVAIL)
DIP
17
