Grayhill DIP Switches: Surface Mount 78H Series - Manual

SerieS 78H
SPDT and DPST
FeATUreS
• Compatible with SMT Assembly
Including Infrared Reflow and
Vapor-Phase
• Reliable Spring and Ball Contact
SpecificationS
electrical Ratings
Make-and-break current Rating: 2,000
operations per switch position at 1 mA, 5 Vdc;
50 mA, 30 Vdc; or 150 mA, 30 Vdc
Contact Resistance: Initial: 30 mohms max.
After Life: 100 mohms max. (10 mA at 50 Vdc,
open circuit)
Insulation Resistance: Minimum, at 100 Vdc
between adjacent closed contacts and also
across open switch contacts. Initial: 2,000
Mohms; After Life: 1,000 Mohms
Dielectric Strength: Minimum voltage (AC, RMS)
measured between adjacent closed contacts
and also across open switch contacts. Initial:
750 volts; After Life: 500 volts
Current Carry Rating: 4 amps, maximum rise
of 20°C
Switch Capacitance: 2 pF at 1megahertz
Mechanical Ratings
Mechanical Life: 2,000 operations per switch
position
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)
terminal Strength: Per specification
Thermal Aging: 1,000 hours at 85°C; no
failures
Thermal Shock: Per specification; no failures;
passes contact resistance
Environmental Ratings
Meets all requirements of MIL- S-83504**. Where
Grayhill performance is superior, the MIL spec is
listed in parentheses.
Operating Temperature Range: -40°C to +
85°C
Storage Temperature Range: -55°C to + 85°C
Moisture Resistance: Per MIL-STD-202, Method
106
Soldering Information
Solderability: Per MIL-STD-202, Method 208
Soldering Heat Resistance: Per MIL-S-83504,
six second test
Recommended Processing Temperature:
220°C–230°C (1 pass—260°C maximum)
Processing Position: Switch is to be processed
with all actuators in the closed (on) position as
shipped.
Materials and Finishes
Shor ting Member : 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: Cover is natural color
thermoplastic, actuators are white thermoplastic
(UL94V-O)
1 1
Dot indicates
active circuit.
1 1
ON
OFF
ON
ON
CIRCUITRy
SPDT 2 Circuits (no common) DPST
No. of Length Length Carrier Width Part Number*
Positions (inches) (metric) Dim. A SPDT DPST
1 0.280" 7,1 mm 24 mm 78HJ01GWT 78HF01GWT
2 0.480" 12,2 mm 24 mm 78HJ02GWT 78HF02GWT
3 0.680" 17,3 mm 32 mm 78HJ03GWT 78HF03GWT
4 0.880" 22,4 mm 44 mm 78HJ04GWT 78HF04GWT
5 1.080" 27,4 mm 44 mm 78HJ05GWT 78HF05GWT
* Insert "R" before the "T" in the Grayhill part number for tape and reel packaging (500 switches/
reel).
** Note: 100% matte tin terminal plating does not meet MIL-S-83504 for lead content.
oRdeRing infoRMation: tube packaging
Available from your local Grayhill Distributor. For prices and discounts, contact a local Sales Office, an authorized local Distributor or Grayhill.
DIMENSIONS In inches (and millimeters)
SPDT, DPST, Top Actuated, Slide Operated Recommended PC Pad Dimensions
.380 ± .010
(9,65 ± 0,25) LENGTH ± .010 (0,25)
See OrDer iNFO
.303 ± .015
(7,70 ± 0,38)
.424 ± .015
(10,77 ± 0,38) TyP.
.023
(5,84)
REF.
.012 ± .001
(0,30 ± 0,03)
TyP.
.055 ± .010
(1,40 ± 0,25)
.025 (0,64) R.
.100 ± .005
(2,54 ± 0,13) TyP.
C
L C L
.268 ± .010
(6,81 ± 0,25)
.530
(13,46)
TyP.
.280 (7,11)
TyP.
C
L C L
.070 (1,78) TyP.
.100 (2,54) TyP. .295 + .000 – .020
(7,49 – 0,51)
TAPE AND REEL PACkAGING
1
4
3
2
1
4
3
2
1
4
3
2
4
2
3
4
2
3
4
1
13 INCH
DIAMETER REEL
COVER TAPE
DIM. A (SEE ORDER INFO.)
1
2
3
4
1
2
3
4
1 1
1
2
3
4
1
PIN ONE LOCATION
16 & 24mm
TAPe 16mm
16mm 32 & 44mm
TAPe
DIRECTION
OF FeeD
CONDUCTIVE
PLASTIC EMBOSSED
TAPe
Meets requirements of EIA 481-2 or
EIA 481-3
Each reel has a 15.750 inch (390 mm)
minimum leader and a 6.30 inch (160 mm)
minimum trailer.
DiP
7
Surface Mount DIP Switches
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
DIP Switches