Rotary Switches Specifications are subject to change. Please refer to the current datasheet on www.grayhill.com for the most current published specifications for this product. Single Deck Rotary Switches SERIES 77 0.5 Diameter, 200 mA 0.18 Behind Panel FEATURES Small Size - Minimal Space Required Behind Panel Available with Continuous Rotation or a Fixed Stop High Stop Strength Shaft and Panel Seal Process Seal available Single Deck with 1 or 2 Poles APPLICATIONS Handheld Radios Handheld Medical Devices Night Vision Products Laser Aiming Devices DIMENSIONS in inches and millimeters .625 15,88 TERMINAL VIEW .500 1 POLE 12,7 .314 .008 .340 .005 .250 .005 .326 7,98 0,2 8,64 0,12 6,35 0,12 8,28 .200 .010 .250 .005 5,08 0,25 6,35 0,12 CIRCLE OF TERMINAL CENTERS .125 .001 TERMINAL 1 3,18 0,02 .200 .004 5,08 0,1 HOUSING 18 18 FLAT SHAFT FLAT .109 .010 10X 36 POS.1 2,77 0,25 .375 +.003 .066 .010 11X .015 9,53 -.002 1,68 0,25 REF .094 .005 +0,07 COMMON TERMINAL 0,38 2,39 0,12 -0,05 .180 4,57 3/8-32 UNEF-2A THREAD Unless otherwise specified, tolerances are .015 inch and 3 degrees RECOMMENDED PANEL CUT-OUT RECOMMENDED PCB LAYOUT (VIEWED FROM SWITCH SIDE OF PCB) TERMINAL VIEW 2 POLE 1 POLE LAYOUT 2 POLE LAYOUT COMMON 2 .200 .200 TERMINAL 1 .072 5,08 5,08 1,83 +.005 .375 -.000 36 36 +0,12 9,53 -0,00 POSITI0N 1 TERMINAL 1 TERMINAL 1 .072 .005 1,83 0,12 11X .024 .004 12X .024 .004 COMMON 1 0,61 0,1 0,61 0,1 .008 0,2 * +.003 .008 0,2 * +.003 12X .015 .345 -.002 -.000 +0,07 +0,07 0,38 8,76 *CUSTOMER TO ESTABLISH PCB DATUMS FOR HOLE PATTERN PLACEMENT -0,05 -0,00 Recommended Mounting Torque: Tighten Grayhill part number and date code marked mounting hex nut to 12 in-lb (15 in-lb max). on label. Customer part number marked on Before applying torque, rotation of the switch request. housing must be constrained by the housing flat via theRecommended Panel Cut-Ou or similar method. Constraining by PCB or anything soldered to the terminals will result Series 77 Series in damage to the switch Series 75 50 Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.comRotary Switches Specifications are subject to change. Please refer to the current datasheet on www.grayhill.com for the most current published specifications for this product. Single Deck Rotary Switches RATED LOADS Switches are rated to make and break the following loads: Inductive Load Lamp Load Resistive Load Environment Cycles Cycles (140mH) Condition Non-shorting Shorting Milliamp Volts Milliamp Volts Milliamps Volts 50 28 VDC 30 28 VDC 50 12 VDC 25,000 10,000 10 28 VDC 25,000 10,000 50 28 VDC 10,000 10,000 Atmospheric 100 28 VDC 7,500 7,500 Pressure 200 28 VDC 5,000 5,000 50 115Vms 10,000 10,000 10 0.03VDC 25,000 10,000 Reduced Pressure 100 28 VDC 7,500 7,500 (70,000 feet) One cycle is 360-degree rotation and a return through all switch positions to the starting position. Electrical Specifications Shaft Seal: Ethylene Propylene Contact Resistance: 50 milliohms max Salt Spray: MIL-DTL-3786, MIL-STD-202, Panel Seal: Silicone (15 milliohms initially). method 101, condition Rotor Contact: Silver cad-oxide, gold-plated 100 milliohms max low level. Explosion Proof: MIL-DTL-3786, MIL-STD Terminals and Common: Brass, gold plate Insulation Resistance: 50,000 Mohms initially 202, method 109 .00002 minimum thickness over silver plate (10,000 Mohms after life) at 100 VDC Immersion: With shaft operation Shaft and .0003 minimum. Voltage Breakdown: 600 Vac initially, panel seal withstands water pressure of 15 Mounting Hardware: One mounting nut .089 250 Vac after life psi minimum per MIL-DTL-3786 (Equivalent to thick by .433 across flats and one external tooth 33ft 10m immersion for 30 minutes). lockwasher supplied with each switch. Mounting Without shaft operation - Shaft and panel nut is brass, nickel plated and lockwasher is Mechanical / Environmental Ratings sealed to withstand 74ft 22m immersion for 2 stainless steel. Operating Temperature: -40C to +85C hours, MIL-DTL-810G Method 512.5. Storage Temperature: -65C to +100C Sand and Dust: MIL-DTL-3786, MIL-STD- Altitude: 70,000 feet Additional Characteristics 202 Method 110 Rotational Torque: 3 in-oz min. to 7 in-oz Contact Type: Non-shorting or Shorting, wiping Flux Seal (Process Sealed Versions): Level max contacts 1 & 2 per MIL-DTL-3786. Stop Strength: 7.5 inch pounds min Terminals: Switches are provided with the full Withstanding Shaft Push Force: 100 circle of terminals regardless of the number of pounds active positions. Materials and Finishes Weight: 4.7 grams with hardware Switch Base: Diallyl Phthalate per MIL-M-14 3.9 grams without hardware Bushing: Zinc alloy Shorting Characteristics Vibration: MIL-DTL-3786, MIL-STD-202, Detent Rotor: Nylon Typical values for current interruption during method 204, condition Detent Balls: Steel, nickel-plated shorting: Shock: MIL-DTL-3786, Medium impact per Contact Spring: music wire Temperature Duration MIL-STD-202, Method 213. Detent Spring: Stainless steel Moisture Resistance: MIL-DTL-3786, MIL- Shaft: Stainless steel Room Temperature to < 0.2 ms STD-202, Method 106 +85 C Reduced Temperatures < 20 ms Contact Grayhill if the life limiting criteria is more critical than those listed, if the required cycles of operation are greater than those listed, if a larger make and break current is required than the Values present typical current interrupt for a single one listed for the desired number of cycles, or if elevated temperatures or reduced pressures are bounce in a pulse train of unspecified length when part of the operating environment. rotating between switch positions. ORDERING INFORMATION Series 77 S = Shaft & Panel Sealed, leave blank for no shaft & panel seal P = PC Terminals T = Process Seal*, Leave blank for no process seal Angle of throw: 36 = 36 Number of Decks: 01 Only 77SPT36-01-1-10N-F Stop arrangement: Needed only with 1 pole switches with maximum positions. Leave blank for continuous rotation add F for fixed stop. Contacts: N = Non-shorting S = Shorting* Positions per pole: 02 up to 10 positions (1 pole), 02 up to 05 positions (2 poles) Poles per deck: 1 or 2 *Process seal (T style) is required for all Shorting contact switches 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