78RB12 Grayhill Inc, 78RB12 Datasheet - Page 2

• Manufacturer Part Number: 78RB12
• Description: SWITCH 12 POS DIP RECESSED UNSLD
• Manufacturer: Grayhill Inc
• Series: 78r

Specifications of 78RB12

• Circuit: SPST
• Number Of Positions: 12
• Contact Rating @ Voltage: 0.15A @ 30VDC
• Actuator Type: Standard
• Actuator Level: Recessed
• Mounting Type: Through Hole
• Orientation: Top Actuated
• Washable: No
• Contact Configuration: SPCO
• No. Of Switch Positions: 12
• Actuator Style: Recessed Slide
• Pitch Spacing: 2.54mm
• Contact Current Dc Max: 150mA
• Circuitry: SPST-CO
• Contact Current Max: 150mA
• Peak Reflow Compatible (260 C): No
• Rohs Compliant: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: GH1261

Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: [phone] • Fax: [phone] • www.grayhill.com
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.**
spec is listed in parentheses.
Moisture Resistance: per MIL-STD-202,
Method 106.
SpeCIFICATIOnS: Standard Styles
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.
Where Grayhill performance is superior, the MIL
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):
lnitially:
After life:
Reflow Soldering
profile:
(260°C
peak Temperature)
Recommended Soldering Conditions:
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.
-40°C to + 85°C
-55°C to + 85°C
≤ 100 mΩ
≤ 30 mΩ
750 V
500 V
2,000
2,000
5,000
1,000
2 pF
5 A
76
—
—
-40°C to + 85°C
-55°C to + 85°C
Thru-Hole DIP Switches
≤ 100 mΩ
≤ 30 mΩ
750 V
500 V
2,000
2,000
5,000
1,000
2 pF
4 A
78
—
—
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:
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
—
DIp
14