Thru-Hole DIP Switches SERIES 79A Linear Action Circuit Selector SERIES 79C Linear Action Tap FEATURES • Single-Setting Programming • Isolated or Bussed Circuits • 10 or 16 Positions • 125 mA, 6 Vdc, 2000 Cycles DIMENSIONS Circuit Selector Tap Switch Isolated Circuits in 10 and 16 Positions Each position is a single isolated circuit, which connects the two terminals across the switch package. The movable contact is non-shorting. SP/10 Positions, and SP/16 Postions All contacts on one side of the switch are internally bussed for a common pole. Any terminal on that side may be used as a common, the others may be clipped. The movable contact is non-shorting. CIRCUITRY In inches (and millimeters) DIMENSION A For 10 Position Switch: 1.180 ± .010 (29,97 ± 0,25) For 16 Position Switch: 1.780 ± .010 (45,21 ± 0,25) 1 2 3 4 5 6 7 8 9 10 .395 ± .010 (10,03 ± 0,25) DIP Switches .080 ± .005 (2,03 ± 0,13) .015/.020 (0,38/0,51) TYP. .145 + .010 – .015 (3,68 + 0,25 –0,38) TYP. .100 ± .005 (2,54 ± 0,13) .250 ± .010 (6,35 ± 0,25) Tap Switch .190 ± .010 (4,83 ± 0,25) .012 ± .001 (0,30 ± 0,03) TYP. .180 ± .010 (4,57 ± 0,25) CL Circuit Selector DIMENSION A ± .010 (0,25) .050 ± .005 (1,27 ± 0,13) TYP. .300 + .030 – .000 CL (7,62 + 0,76 – 0,00) .020 ± .002 (0,51 ± 0,05) TYP. .100 ± .005 (2,54 ± 0,13) TYP. CL .140 ± .005 (3,56 ± 0,13) TYP. CL SPECIFICATIONS Mechanical Ratings Electrical Ratings Mechanical Life: 4,000 cycles maximum. Note: a cycle is one complete operation, back and forth through all switch positions. Vibration Resistance: 10 to 2,000 Hz at 15G or 0.060" double amplitude, per MIL-STD-202F per MIL-5-83504; Method 213, Condition A. No damage and no contact openings exceeding 10 mS (Method 204, Test Condition B). Shock Resistance: 509, 11 mS, half sine; no damage and no openings exceeding 10 mS (Method 213, Test Condition A). Make-and-break Current Rating: 2,000 cycles at 10 mA, 50 mVdc; 2,000 cycles at 125 mA, 6 Vdc; 2,000 cycles at 50 mA, 30 Vdc. Contact Resistance: (measured at 10 mA, 50 mVdc) Coded Switches: 60 mohms maximum initially. Other Switches: 50 mohms maximum initially. After LIfe: 100 mohms maximum Insulation Resistance (at 100 Vdc): Between adjacent isolated contacts: Initial:5,000 Mohms; 1,000 Mohms minimum after life. Across open contacts: Initial: 5,000 Mohms; 1,000 Mohms minimum after life. Dielectric Strength: Between adjacent isolated contacts and also across open contacts. Initially: 750 Vac: 500 Vac after life Contact Carry Rating: 2 Amps with a maximum contact temperature rise of 20°C 1 2 3 4 5 6 7 8 9 10 Environmental Rating Operating Temperature Range: -40°C to +85°C Storage Temperature Range: -55°C to +85°C Moisture Resistance: 240 hours with temperature cycling and polarization, per MILSTD-202F, Method 305 Materials and Finishes Nonconductive Parts: Plastic UL94V-O Shorting Arm: Phosphor bronze, gold plate over nickel plate Base Contacts: Copper alloy, gold plate over nickel plate Terminals: Copper alloy, matte tin plated over nickel barrier. Potting Material: Epoxy Tape and Seal Packaging Seal Strength: Per MIL-STD-202, Method 112. 30 seconds at 125° hot Fluorocarbon Solderability: Per MIL-STD-202, Method 208. Tape Seal: Polyester film Available from your local Grayhill Distributor. For prices and discounts, contact a local Sales Office, an authorized local Distributor or Grayhill. ORDERING INFORMATION Number of Positions 10 10 16 16 Type of Circuit Code Circuit Selector Single Pole Circuit Selector Single Pole Number per Tube Part Number* 9 9 6 6 79A10T 79C10T 79A16T 79C16T *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" before the "T" in the Grayhill part number. DIP 15 Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com