DIP Switches Thru-Hole DIP Switches SerieS 79A Linear Action Circuit Selector SerieS 79C Linear Action Tap FeATureS • Single-Setting Programming • Isolated or Bussed Circuits Circuit Selector Tap Switch • 10 Positions Each position is a single isolated circuit, which All contacts on one side of the switch are connects the two terminals across the switch internally bussed for a common pole. Any terminal • 125 mA, 6 Vdc, 2000 Cycles package. The movable contact is non-shorting. on that side may be used as a common, the • RoHS Compliant others may be clipped. The movable contact is non-shorting. DiMeNSiONS in inches (and millimeters) CirCuiTry Circuit Selector 1 2 3 4 5 6 7 8 9 10 Tap Switch 1 2 3 4 5 6 7 8 9 10 SpeCiFiCATiONS Mechanical ratings Materials and Finishes electrical ratings Make-and-break Current rating: 2,000 cycles Mechanical Life: 4,000 cycles maximum. Note: Nonconductive parts: Plastic UL94V-O Shorting Arm: Phosphor bronze, gold plate at 10 mA, 50 mVdc; 2,000 cycles at 125 mA, 6 a cycle is one complete operation, back and forth Vdc; 2,000 cycles at 50 mA, 30 Vdc. through all switch positions. over nickel plate Base Contacts: Copper alloy, gold plate over Contact resistance: (measured at 10 mA, 50 Vibration resistance: 10 to 2,000 Hz at 15G or 0.060" double amplitude, per MIL-STD-202F nickel plate mVdc) Coded Switches: 60 mohms maximum initially. Other Switches: 50 mohms maximum per MIL-5-83504; Method 213, Condition A. No Terminals: Copper alloy, matte tin plated over nickel barrier. initially. After LIfe: 100 mohms maximum damage and no contact openings exceeding 10 insulation resistance (at 100 Vdc): mS (Method 204, Test Condition B). potting Material: Epoxy Between adjacent isolated contacts: Shock resistance: 509, 11 mS, half sine; no damage and no openings exceeding 10 mS Tape and Seal packaging Initial:5,000 Mohms; 1,000 Mohms minimum after life. Across open contacts: Initial: 5,000 (Method 213, Test Condition A). Seal Strength: Per MIL-STD-202, Method 112. 30 seconds at 125° hot Fluorocarbon Mohms; 1,000 Mohms minimum after life. Dielectric Strength: Between adjacent isolated Solderability: Per MIL-STD-202, Method 208. environmental rating Tape Seal: Polyester film contacts and also across open contacts. Initially: Operating Temperature: -40°C to +85°C 750 Vac: 500 Vac after life Storage Temperature: -55°C to +85°C Contact Carry rating: 2 Amps with a maximum Available from your local Grayhill Moisture resistance: 240 hours with Distributor. contact temperature rise of 20°C temperature cycling and polarization, per MIL- For prices and discounts, contact a local STD-202F, Method 305 Sales Office, an authorized local Distributor or Grayhill. OrDeriNG iNFOrMATiON Number of positions Type of Circuit Code Number per Tube part Number* 10 Circuit Selector 9 79A10T 10 Single Pole 9 79C10T *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. Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com DIP Switches Thru-Hole DIP Switches SerieS 79B Linear Action, Coded Output FeATureS • Reliable Switching, Positive Detent • Codes in BCD and Hexadecimal • True Zero Output • 10 Positions • 2000 Cycle Life • Up to 60,000 Detent Operations • RoHs Compliant DiMeNSiONS In inches (and millimeters) CirCuiTry All dimensions not shown here are the same as those on the facing page. SpeCiFiCATiONS electrical ratings Mechanical ratings Materials and Finishes Make-and-break Current rating: 2,000 cycles Nonconductive parts: Plastic UL94V-O Mechanical Life: 4,000 cycles maximum. Note: at 10 mA, 50 mVdc; 2,000 cycles at 125 mA, 6 Shorting Arm: Phosphor bronze, gold plate a cycle is one complete operation, back and forth Vdc; 2,000 cycles at 50 mA, 30 Vdc. through all switch positions. over nickel plate Contact resistance: 100 mohms maximum Base Contacts: Copper alloy, gold plate over Vibration resistance: 10 to 2,000 Hz at 15G after life, measured at 10 mA dc and 50 mV (open or 0.060" double amplitude; no damage and no nickel plate circuit). Initial values are 60 mohms maximum Terminals: Copper alloy, matte tin plated over contact openings exceeding 10 mS (Method for coded switches. nickel barrier 204, Test Condition B). insulation resistance (at 100 Vdc): Shock resistance: 509, 11 mS, half sine; potting Material: Epoxy Between adjacent isolated contacts: Initial: no damage and no openings exceeding 10 5,000 Mohms minimum; After Life: 1,000 microseconds (Method 213, Test Condition A). Tape Seal and packaging Mohms minimum Tape Seal: Polyester film Across open contacts: Initial: 5,000 Mohms environmental ratings minimum; After Life: 1,000 Mohms minimum Refer to MIL-STD-202F per MIL-S-83504 Dielectric Strength: Between adjacent isolated Operating Temperature: -40°C to +85°C contacts and across open contacts. Initial: 750 Storage Temperature: -55°C to +85°C Vac; After Life: 500 Vac Moisture resistance: 240 hours with Contact Carry rating: 2 amps with a maximum temperature cycling and polarization, per MIL- contact temperature rise of 20°C. STD-202F, Method 305 OrDeriNG iNFOrMATiON Available from your local Grayhill Number of positions Type of Circuit Code Number per Tube part Number* Distributor. For prices and discounts, contact a local 10 Binary Code Decimal 9 79B10T Sales Office, an authorized local Distributor or Grayhill. *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. Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com