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78 Series Datasheet

Grayhill Inc.

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Datasheet

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
SERIES 78
SPST To 4PST Slide
OPEN CLOSED
Series
90HBW
90B
76
78
FEATURES
Raised and Recessed Slides
SPST, 2PST, 3PST, 4PST
Sealed Base Standard
Spring and Ball Contact
Top Tape Seal Option
2134
O
N
2134
O
N
Single Pole/Single Throw Switch
CIRCUITRY
For switches with 5, 6, 7, 8, or 10PST circuitry,
contact Grayhill.
Typical Multiple
Pole Switch
Typical Circuit
Diagram
1
O
N
1
O
N
No. of Length Length No./ Raised Recessed
Circuitry Positions Inches Metric Tube Slides* Slides*
2 0.280" 7,1mm 35 78B02T 78RB02T
3 0.380" 9,7mm 27 78B03T 78RB03T
4 0.480" 12,2mm 21 78B04T 78RB04T
5 0.580" 14,7mm 18 78B05T 78RB05T
SPST 6 0.680" 17,3mm 15 78B06T 78RB06T
7 0.780" 19,8mm 13 78B07T 78RB07T
8 0.880" 22,4mm 12 78B08T 78RB08T
9 0.980" 24,9mm 10 78B09T 78RB09T
10 1.080" 27,4mm 9 78B10T 78RB10T
12 1.280" 32,5mm 8 78B12T 78RB12T
T
1 0.280" 7,1mm 35 78F01T
2 0.480" 12,2mm 21 78F02T
2PST 3 0.680" 17,3mm 15 78F03T
4 0.880" 22,4mm 12 78F04T Recessed
5 1.080" 27,4mm 9 78F05T Slides
6 1.280" 32,5mm 8 78F06T Not Available
1 0.380" 9,7mm 27 78G01T
3PST 2 0.680" 17,3mm 15 78G02T
3 0.980" 24,9mm 10 78G03T
4PST 1 0.480" 12,2mm 21 78H01T
2 0.880" 22,4mm 12 78H02T
ORDERING INFORMATION
Single Pole/Single Throw Switch in Raised and Recessed Slides
DIMENSIONS In inches (and millimeters)
Note:
Recessed slides have a dimple for
tool actuation. For recessed slides,
the .295 dimension does not apply.
Double Pole/Single Throw and Typical
Multiple Pole Switch with Raised Slides
21
O
N.380 ± .010
(9,65 ± 0,25)
SEE ORDERING
INFORMATION
C
LC
L
DIM. B
± .002
(± 0,05)
.020 ± .002 (0,51 ± 0,05)
.090 ± .005 (2,29 ± 0,13)
.100 ± .005 (2,54 ± 0,13)
2PST = .100 (2,54
3PST = .200 (5,08)
4PST = .300 (7,62)
=
21345678910
O
N
.380 ± .010
(9,65 ± 0,25)
SEE ORDERING
INFORMATION
C
LC
L
.060 ± .002 (1,52 ± 0,05)
.020 ± .002 (0,51 ± 0,05)
.090 ± .005 (2,29 ± 0,13)
.100 ± .005 (2,54± 0,13)
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)
*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.
Available from your local Grayhill Distributor.
For prices and discounts, contact a local Sales
Office, an authorized local Distributor or Grayhill.
12345
SEE ORDERING
INFORMATION
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 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 m 30 m 20 m
After life, at 10 mA, 50 mVdc, open circuit: 100 m 100 m 100 m
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.
Initially: 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 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: 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
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.
Tape and Reel Packaging
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.

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