Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Thru-Hole DIP Switches
DIP Switches
FEATURES
• Raised and Recessed Rocker,
and Toggle Actuated Styles
• DPDT with Common Poles, or
DPDT with 4 Isolated Circuits
• Spring and Ball Contact
• Top Tape Seal Option for
Most Styles
1
C1
C2
2
.380 ± .010
(9,65 ± 0,25)
.380 ± .010
(9,65 ± 0,25)
.020
± .002
(0,51
± 0,05)
TYP.
.090 ± .005
(2,29 ± 0,13)
TYP.
.100 ± .005
(2,54 ± 0,13)
TYP.
Toggle-DIP
CIRCUITRY: Series 76
DIMENSIONS: Series 78 In inches (and millimeters) CIRCUITRY: Series 78
DIMENSIONS: Series 76 In inches (and millimeters)
To create common poles, tie together 2
adjoining terminals on 1 (either) side of switch.
ORDERING INFORMATION
Circuitry No./ Length Length No./ Raised Recessed Toggle-
Positions Inches Metric Tube Type* Rockers* DIP*
DPDT 1 0.380" 9,7mm 27 76SD01 76RSD01 76STD01
Form D 2 0.780" 19,8mm 13 76SD02 76RSD02 76STD02
DPDT 1 0.480" 12,2mm 21 78K01 ——
4 Circ. 2 0.880" 22,4mm 12 78K02 ——
A top tape seal is required for switches that are machine soldered or heavily cleaned after hand
soldering. To order top seal versions, add "S" to the Grayhill part number. Not available on Toggle-
DIP.
ADDITIONAL INFORMATION
For Specifications, see page B-16. For other
Options and Accessories, see pages B-20 and
B-21.
Available from your local Grayhill Distributor.
For prices and discounts, contact a local Sales
Office, an authorized local Distributor or Grayhill.
DPDT, 4 Circuits
(No Commons)
Dot on cover indicates active terminal when
slide is on that side of switch. Contact is made
with terminal on opposite side.
Series 78 Slide
DPDT with Commons
True Form D Switching
Series 76 Raised Rocker, Double-DIP
Recessed Rocker
.247 ± .010
(6,27 ± 0,25)
1
C1
C2
2
1
C1
C2
2
1
C1
2
C2
1
C1
2
C2
1
C
LC
L
2
.380 ± .005
(9,65 ± 0,25)
DIM. A
SEE CHART
.300 ± .002
(7,62 ± 0,05)
.020 ± .002
(0,51 ± 0,05) TYP.
.090 ± .005 (2,29 ± 0,13) TYP.
.100 ± .005 (2,54 ± 0,13) TYP.
11
.447 ± .015
(11,35 ± 0,38)
TYP.
C
L
C
L
.070 (1,78) REF.
A.295 + .000 –.020
(7,49 –0,51)
.020
± .002
(0,51
± 0,05) .156 + .015 –.010
(3,96 + 0,38 –0,25) TYP.
A = .245 + .000 –.020
(6,22 + 0,51)
.050 ± .005
(1,27 ± 0,13)
TYP. .180 ± .010 (4,57 ± 0,25)
.012 ± .001 (0,30 ± 0,03)
.300 + .030 –.000
(7,62 + 0,76)
C
L
C
L
A
A = .247 ± .010
(6,27 ± 0,25)
.295 + .000 –.020
(7,49 –0,51)
.020 + .005 –.000
(0,51 + 0,13)
.050 ± .005
(1,27 ± 0,13)
.180 ± .010
(4,57 ± 0,25) .012 ± .001
(0,30 ± 0,03)
.300 + .030 –.000
(7,62 + 0,76)
.156 + .015 –.010
(3,96 + 0,38 –0,25)
SERIES 76 and 78
DPDT
B-15
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Thru-Hole DIP Switches
DIP Switches
Ratings 76 78 90B
Mechanical Life: Operations per switch position 20,000 20,000 5,000
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: 10,000 10,000 —
10 mA, 30 Vdc; or 10 mA, 50 mVdc: ——2,000
10 mA, 50 mVdc; or 25 mA, 24 Vdc; or 100 mA, 6 Vdc: ——2,000
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 5,000 5,000
After life (Mohms): 1,000 1,000 1,000
Dielectric Strength: Minimum voltage (AC,
RMS) measured between adjacent closed
contacts and also across open switch contacts.
lnitially: 750 V 750 V 500 V
After life: 500 V 500 V 500 V
Current Carry Rating: Maximum rise of 20°C 5 A4 A3 A
Switch Capacitance: At 1 megahertz 2 pF 2 pF 2 pF
Operating Temperature Range: -40°C to + 85°C -40°C to + 85°C -40°C to + 85°C
Storage Temperature Range: -55°C to + 85°C -55°C to + 85°C -55°C to + 85°C
SPECIFICATIONS: Standard and Military Qualified Styles
Mechanical Ratings
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
Thermal Aging: 1,000 hours at 85°C; no failures.
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.
Soldering Information
Series 90 MIDIP® and Series 76 recessed rocker
(76RSB style) sealed switches have been tested
to EIA Standard RS-448-2. Similar performance
can be expected from other sealed Series 76 and
78 DIP switches.
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: 76RSB, 90: 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.
Materials and Finishes
Shorting Member (Ball): Brass, gold-plated
10 microinches minimum over nickel barrier.
Base Contacts: Copper alloy, gold-plated
10 microinches minimum over nickel barrier.
Terminals: Copper alloy, solder-plated over nickel
barrier.
Non-Conductive Parts: Thermoplastic (UL94V-O)
Potting Material: Epoxy, 76,78 only.
Protective Cover: 76,78, only-Polycarbonate.
Tape and Reel Packaging
Tape Seal:
76, 78: Polyester film
90: Polyimide film or foil
Tape Seal Integrity: Passes gross leak test using
125°C flourinert for 20 seconds minimum.
Reference MIL-STD-202, Method 112.
B-16
