Thru-Hole DIP Switches
SPECIFICATIONS: Standard Styles
Ratings
76
2,000
78
2,000
90B
2,000
Mechanical Life: Operations per switch position
Make-and-break Current Rating: Operations
per switch position at these resistive loads
1 mA, 5 Vdc; 50 mA, 30 Vdc; or 150 mA, 30 Vdc:
10 mA, 30 Vdc; or 10 mA, 50 mVdc:
2,000
—
—
2,000
—
—
—
2,000
2,000
10 mA, 50 mVdc; or 25 mA, 24 Vdc; or 100 mA, 6 Vdc:
Contact Resistance: Initially:
≤ 30 mΩ
≤ 30 mΩ
≤ 20 mΩ
After life, at 10 mA, 50 mVdc, open circuit:
≤ 100 mΩ
≤ 100 mΩ
≤ 100 mΩ
Insulation Resistance:
Minimum, at 100 Vdc between adjacent closed
contacts and also across open switch contacts
Initially (Mohms):
5,000
1,000
5,000
1,000
5,000
1,000
After life (Mohms):
Dielectric Strength: Minimum voltage (AC,
RMS) measured between adjacent closed
contacts and also across open switch contacts.
Initially:
750 V
500 V
750 V
500 V
500 V
500 V
After life:
Current Carry Rating: Maximum rise of 20°C
Switch Capacitance: At 1 megahertz
Operating Temperature Range:
5 A
4 A
3 A
2 pF
2 pF
2 pF
-40°C to + 85°C
-55°C to + 85°C
-40°C to + 85°C
-55°C to + 85°C
-40°C to + 85°C
-55°C to + 85°C
Storage Temperature Range:
Materials and Finishes
Soldering Information
Mechanical Ratings
Series90MIDIP® andSeries76recessedrocker
(76RSBstyle)sealedswitcheshavebeentested
toEIAStandardRS-448-2. Similarperformance
can be expected from other sealed Series 76
and 78 DIP switches.
Shorting Member (Ball): Brass, gold-plated
10 microinches minimum over nickel barrier.
Base Contacts: Copper alloy, gold-plated over
nickel barrier.
Terminals: Copper alloy, matte-tin plated over
nickel barrier.
Non-Conductive Parts: Thermoplastic
(UL94V-O)
Potting Material: Epoxy, 76,78 only.
Protective Cover: 76,78, only-Polycarbonate.
Vibration Resistance: Per Method 204, Test
Condition B, 1 mS opening (10 mS allowed)
Mechanical Shock: Per Method 213, Test
Condition A. 1 mS opening (10 mS allowed)
Thermal Shock Resistance: Per specification;
no failures; passes contact resistance.
Terminal Strength: Per specification
Solderability: Per MIL-STD-202, Method 208
Resistance to Soldering Heat: 76RSB:
Passes EIA Standard using two, four, and six
second soldering time. 90: Per MIL-S-83504,
six second test.
Fluxing: Per EIA RS-448-2 with flux touching
switch body.
Cleaning: 76, 78 and 90 Series tape sealed
products: Passes immersion test using water/
detergent. Acceptable solutions
ThermalAging:1,000hoursat85°C;nofailures.
Environmental Ratings
Meets all requirements of MIL- S-83504. Where
Grayhill performance is superior, the MIL spec
is listed in parentheses.
Moisture Resistance: Per specification,
Method 106.
Tape and Reel Packaging
Tape Seal:
76, 78: Polyester film
90:
Polyimide film
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
includeacetone, methylenechloride, freonTMC.
Tape Seal Integrity: Passes gross leak test
using 125°C flourinert for 20 seconds minimum.
Reference MIL-STD-202, Method 112.
Grayhill, Inc.
• 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com