78H01 Grayhill Inc, 78H01 Datasheet - Page 2

• Manufacturer Part Number: 78H01
• Description: SWITCH DIP 500V 4A 1POS 4PST
• Manufacturer: Grayhill Inc
• Series: 78r

Specifications of 78H01

• Circuit: 4PST
• Number Of Positions: 1
• Contact Rating @ Voltage: 0.15A @ 30VDC
• Actuator Type: Standard
• Actuator Level: Raised
• Mounting Type: Through Hole
• Orientation: Top Actuated
• Washable: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Q1677787

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.
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: [phone] • Fax: [phone] • www.grayhill.com
ratings
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:
10 mA, 50 mVdc; or 25 mA, 24 Vdc; or 100 mA, 6 Vdc:
contact resistance: Initially:
After life, at 10 mA, 50 mVdc, open circuit:
insulation resistance:
Minimum, at 100 Vdc between adjacent closed
contacts and also across open switch contacts
Dielectric Strength: Minimum voltage (AC,
RMS) measured between adjacent closed
contacts and also across open switch contacts.
current carry rating: Maximum rise of 20°C
Switch capacitance: At 1 megahertz
Operating Temperature range:
Storage Temperature range:
Initially (Mohms):
After life (Mohms):
Initially:
After life:
Soldering information
Series 90 MIDIP
(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).TerpeneacceptableforSeries90only.
Solutions which are not recommended include
acetone, methylene chloride, freon TMC.
-40°C to + 85°C
-55°C to + 85°C
®
and Series 76 recessed rocker
≤ 100 mΩ
≤ 30 mΩ
2,000
2,000
5,000
1,000
750 V
500 V
2 pF
5 A
76
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—
Thru-Hole DIP Switches
-40°C to + 85°C
-55°C to + 85°C
≤ 100 mΩ
≤ 30 mΩ
2,000
2,000
5,000
1,000
750 V
500 V
2 pF
4 A
78
—
—
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:
90:
Tape Seal integrity: Passes gross leak test
using 125°C flourinert for 20 seconds minimum.
Reference MIL-STD-202, Method 112.
-40°C to + 85°C
-55°C to + 85°C
Polyester film
Polyimide film
≤ 100 mΩ
≤ 20 mΩ
500 V
2,000
2,000
2,000
5,000
1,000
500 V
90B
2 pF
3 A
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