DIP Switches
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
.247 ± .010
(6,27 ± 0,25)
SERIES 76 and 78
SPDT
DIMENSIONS: Series 76 In inches (and millimeters)
Toggle-DIPSeries 76 Raised Rocker
Recessed Rocker
Circuitry Positions Length Length No./ Raised Recessed Toggle-
Inches Metric Tube Type* Rockers* DIP*
SPDT 2 0.380" 9,7mm 27 76SC02T 76RSC02T 76STC02T
Form 3 0.580" 14,7mm 18 76SC03T 76RSC03T 76STC03T
C 4 0.780" 19,8mm 13 76SC04T 76RSC04T 76STC04T
SPDT 1 0.280" 7,1mm 35 78J01T ——
2 2 0.480" 12,2mm 21 78J02T ——
Circuits 3 0.680" 17,3mm 15 78J03T ——
4 0.880" 22,4mm 12 78J04T ——
5 1.080" 27,4mm 9 78J05T ——
6 1.280" 32.5mm 8 78J06T
Series 78 Slide
DIMENSIONS: Series 78 In inches (and millimeters)
ORDERING INFORMATION
1 2
C1
C2
.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.
.447 ± .015
(11,35 ± 0,38)
TYP.
FEATURES
• Raised and Recessed Rocker,
and Toggle Actuated Styles
• SPDT with a Common Pole, or
SPDT with 2 Isolated Circuits
• Spring and Ball Contact
• Top Tape Seal Option for
Most Styles
*To order top seal versions, add "S" before the "T" in the Grayhill part number.
Not available on Toggle-DIP.
11
SPDT with Common
True Form C Switching
CIRCUITRY: Series 78
1 2
C1
1
C1
1
C1
C2
1 2
C1
C2
CIRCUITRY: Series 76
To create common poles, tie together 2
adjoining terminals on 1 (either) side of switch.
SPDT, 2 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.
1
C
LC
L
2 3 4 5
0.380 ± .005
(9,65 ± 0,13)
DIM. A
SEE CHART
.100 ± .002
(2,54 ± 0,05)
.020 ± .002 (0,51 ± 0,05) TYP.
.090 ± .005 (2,29 ± 0,13) TYP.
.100 ± .005 (2,54 ± 0,13) 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)
Available from your local Grayhill Distributor.
For prices and discounts, contact a local Sales
Office, an authorized local Distributor or Grayhill.
DIP
12
Thru-Hole DIP Switches
Ratings 76 78 90B
Mechanical Life: Operations per switch position 2,000 2,000 2,000
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: 2,000 2,000 —
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 A 4 A 3 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 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 MIL-STD-202,
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: 76, 78 and 90 series 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.
Materials and Finishes
Shorting Member (Ball): Brass, gold-plated
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.
Tape Seal:
76, 78: Polyester film
90: Polyimide film
Tape Seal Integrity: Passes gross leak test
using 125°C flourinert for 20 seconds minimum.
Reference MIL-STD-202, Method 112.
Reflow Soldering
Profile:
(260°C
Peak Temperature)
Recommended Soldering Conditions:
WAVE SOLDERING: 260°C maximum solder temperature for 5 seconds max.
** Note: 100% matte tin terminal plating does not meet MIL-S-83504 for lead content.
DIP
14
Thru-Hole DIP Switches
DIP Switches
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
