78HF01GWRT

Surface Mount DIP Switches SERIES 78H FEATURES • Compatible with SMT Assembly Including Infrared Reflow and Vapor-Phase • Reliable Spring and Ball Contact SPDT and DPST DIMENSIONS In inches (and millimeters) SPDT, DPST, Top Actuated, Slide Operated .055 ± .010 (1,40 ± 0,25) .025 (5,84) REF. Recommended PC Pad Dimensions LENGTH ± .010 (0,25) SEE ORDER INFO .380 ± .010 (9,65 ± 0,25) .012 ± .001 (0,30 ± 0,03) TYP. .530 (13,46) TYP. .268 ± .010 (6,81 ± 0,25) .025 (0,64) R. .303 ± .015 (7,70 ± 0,38) .424 ± .015 (10,77 ± 0,38) TYP. CL CL .100 ± .005 (2,54 ± 0,13) TYP. .295 + .000 – .020 (7,49 – 0,51) SPDT 2 Circuits (no common) 1 DPST 1 ON ON with all actuators in the closed (on) position as shipped. 1 DIP Switches Dot indicates active circuit. OFF SPECIFICATIONS Electrical 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 4 3 2 1 3 2 DIRECTION OF FEED 1 1 * 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. 16mm 2 78HF01GWT 78HF02GWT 78HF03GWT 78HF04GWT 1 78HJ01GWT 78HJ02GWT 78HJ03GWT 78HJ04GWT 3 Carrier Width Part Number* Dim. A SPDT DPST 4 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 24 mm 24 mm 32 mm 44 mm 16 & 24mm TAPE 2 7,1 mm 12,2 mm 17,3 mm 22,4 mm 4 Soldering Information 3 0.280" 0.480" 0.680" 0.880" CONDUCTIVE PLASTIC EMBOSSED TAPE 1 1 1 4 Length (metric) 13 INCH DIAMETER REEL 2 1 2 3 4 Length (inches) Meets requirements of EIA 481-2 or EIA 481-3 Environmental Ratings ORDERING INFORMATION: Tube Packaging No. of Positions TAPE AND REEL PACKAGING 3 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 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) 4 Mechanical Ratings ON Materials and Finishes 4 Make-and-break Current Rating: 2 , 0 0 0 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 .070 (1,78) TYP. .100 (2,54) TYP. CL CL CIRCUITRY 1 .280 (7,11) TYP. 1 1 1 2 2 2 3 3 3 4 4 4 16mm PIN ONE LOCATION 32 & 44mm TAPE COVER TAPE DIM. A (SEE ORDER INFO.) Each reel has a 15.750 inch (390 mm) minimum leader and a 6.30 inch (160 mm) minimum trailer. Available from your local Grayhill Distributor. For prices and discounts, contact a local Sales Office, an authorized local Distributor or Grayhill. Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com