SERIES 78B
Right Angle Option
Thru-Hole DIP Switches
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: 2,000 operations per
switch.
Operation Temp: -40°C to + 85°C
Storage Temp: -55°C to + 85°C
Vibration Test: Per Method 204, Test Condition
B, 1 mS opening (10 mS allowed)
Shock Test: MIL-STD-202F METHOD 213
Test Condition A, 1ms (10 allowed)
Electrical
Electrical Life: 10,000 operations per switch
24VDC, 25mA.
Non-Switching Rating: 100mA, 50VDC.
Switching rating: 150mA, 30DVC;
10mA, 50mVDC
Contact Resistance: 30mΩ max. at initial.
Insulation Resistance: (at 100VDC) 5,000MΩ
min.
Dielectric Strength: 750VAC/1 minute.
Capacitance: 2pF max.
Soldering and Cleaning Process
Cleaning tape sealed products:
Passes immersion test using water/
detergent. Acceptable solutions include 1-1-
1 trichlorethane, freon, (TF, TE, or TMS),
isopropyl alcohol, detergent (140°F maximum).
Terpene acceptable for Series 90 only. Solutions
which are not recommended include acetone,
methylene chloride, freon TMC. Pressure wash
cleaning processes are not recommended for
tape seal switches.
Wave Soldering: 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
Contact Ball: Brass with gold plating over
nickel
Terminals: Brass with gold plating over
nickel
Nonconductive Parts: Plastic UL94V-0
Potting Material: Epoxy
Shorting Member (Ball): Brass, gold-plated
over nickel barrier.
Protective Cover: Polycarbonate.
Tape Seal: Polyester lm
Tape Seal Integrity: Passes gross leak test
using 125°C ourinert for 20 seconds minimum.
Reference MIL-STD-202, Method 112.
Series 78B DIMENSIONS in inches (and millimeters)
Series 78B, 78F, 78G, 78H, 78J, 78K, 78RB Styles available as right angle
Number of Positions 2 through 12
RoHS compliant
78B08SRAT
Right Angle
S= Top Tape Sealed, Blank=Unsealed
ORDERING INFORMATION
DIP
17
Right Angle Assemblies As Shipped Right Angle Assemblies As Installed
Tape Sealed
78R 78K 78H 78F 78J
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
DIP Switches
