Rotary Switches 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 Single Deck Rotary Switches RAtED LOADS Switches are rated to make and break the following loads: Lamp Load Inductive Load (140mH) Resistive Load Environment Cycles Condition Milliamp Volts Milliamp Volts Milliamps Volts 50 28 VDC 30 28 VDC 50 12 VDC 25,000 10 28 VDC 25,000 50 28 VDC 10,000 Atmospheric Pressure 100 28 VDC 7,500 200 28 VDC 5,000 50 115 Vrms 10,000 Reduced Pressure 100 28 VDC 7,500 (70,000 feet) One cycle is 360-degree rotation and a return through all switch positions to the starting position. Electrical Specifications Materials and Finishes Vibration: MIL-DTL-3786, MIL-STD-202, Low Level Circuit Rating: 10 milliamperes, Switch Base: Diallyl Phthalate per MIL-M-14 30 millivolts DC or Peak AC open-circuit voltage, method 204, condition Bushing: Zinc alloy, tin zinc plating Shock: MIL-DTL-3786, Medium impact per 25,000 cycles Detent Rotor: Nylon Contact Resistance: 50 milliohms max MIL-STD-202, Method 213. Detent Balls: Steel, nickel-plated Moisture Resistance: MIL-DTL-3786, MIL- (15 milliohms initially). Contact Spring: Tinned music wire STD-202, Method 106 100 milliohms max low level. Detent Spring: Stainless steel Insulation Resistance: 50,000 Mohms initially Salt Spray: MIL-DTL-3786, MIL-STD-202, Shaft: Stainless steel method 101, condition (10,000 Mohms after life) at 100 VDC Shaft Seal: Ethylene Propylene Voltage Breakdown: 600 Vac initially, Explosion Proof: MIL-DTL-3786, MIL-STD Panel Seal: Silicone 202, method 109 250 Vac after life Rotor Contact: Silver cad-oxide, gold-plated Immersion: With shaft operation Shaft and t erminals and Common: Brass, gold plate panel seal withstands water pressure of 15 .00002 minimum thickness over silver plate Mechanical / Environmental Ratings psi minimum per MIL-DTL-3786 (Equivalent to .0003 minimum. Operating t emperature: -40C to +85C 33ft 10m immersion for 30 minutes). Mounting Hardware: One mounting nut .089 Storage t emperature: -65C to +100C Without shaft operation - Shaft and panel thick by .433 across flats and one external tooth Altitude: 70,000 feet sealed to withstand 74ft 22m immersion for 2 lockwasher supplied with each switch. Mounting Rotational t orque: 3 in-oz min. to 7 in-oz hours, MIL-DTL-810G Method 512.5. nut is brass, nickel plated and lockwasher is max Sand and Dust: MIL-DTL-3786, MIL-STD- stainless steel. Stop Strength: 7.5 inch pounds min 202 Method 110 Withstanding Shaft Push Force: 100 Flux Seal (Process Sealed Versions): Level pounds Additional Characteristics 1 & 2 per MIL-DTL-3786. Weight: 4.7 grams with hardware Contact t ype: Non-shorting, wiping contacts 3.9 grams without hardware t erminals: Switches are provided with the full circle of terminals regardless of the number of active positions. 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 one listed for the desired number of cycles, or if elevated temperatures or reduced pressures are part of the operating environment. 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 Positions per pole: 02 up to 10 positions (1 pole), 02 up to 05 positions (2 poles) Poles per deck: 1 or 2 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