Thru-Hole DIP Switches
SERIES 78B
Right Angle Option
Features
• Easy Access
• SPST Circuitry
• 2-10 and 12 positions available
• Sealed versions available
Series 78B DIMENSIONS
Applications
Telecommunications, computers
and peripherals, instruments and
controls.
in inches (and millimeters)
DIP Switches
Right Angle Assemblies As Shipped
Right Angle Assemblies As Installed
SPECIFICATIONS
Mechanical
Mechanical Life: 2,000 operations per
switch.
Operation Temp: -40°C to + 85°C
Storage Temp: -55°C to + 85°C
VibrationTest: 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.
Materials
Soldering and Cleaning Process
Cleaning tape sealed products:
Passes immersion test using water/
detergent. Acceptable solutions include 1-11 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.
ORDERING INFORMATION
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 film
Tape Seal Integrity: Passes gross leak test
using 125°C flourinert for 20 seconds minimum.
Reference MIL-STD-202, Method 112.
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
78R
78K
78H
78F
78J
Tape Sealed
DIP
17
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Grayhill:
78J05SRAT 78F04RAT 78RB03SRAT 78RB08SRAT 78F03SRAT 78J02RAT 78G02SRAT 78RB09RAT
78RB04SRAT 78J03RAT 78F05RAT 78G03SRAT 78RB10SRAT 78J04RAT 78RB06RAT 78RB12RAT
78RB03RAT 78J02SRAT 78RB12SRAT 78RB06SRAT 78RB07RAT 78F05SRAT 78RB05SRAT 78RB02SRAT
78F04SRAT 78RB10RAT 78H02RAT 78F02RAT 78G02RAT 78J03SRAT 78F03RAT 78G03RAT 78J05RAT
78RB04RAT 78RB07SRAT 78K02RAT 78F02SRAT 78RB09SRAT 78RB05RAT 78K02SRAT 78RB02RAT
78H02SRAT 78RB08RAT 78J04SRAT
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