pushbutton switches grayhill, inc. ? 561 hillgrove avenue ? lagrange, illinois 60525-5997 ? usa ? phone: 708-354-1040 ? fax: 708-354-2820 ? www.gr ayhill.com butt contact pushbutton switches .850 (21,59) square .125 (3,18) radius 4 places .188 .005 (4,78 0,13) diameter .187 .010 (4,75 0,25) .460 .010 (11,68 0,25) .550 .010 (13,97 0,25) .020 .010 (0,51 0,25) .040 (1,02) dia. 5 places .150 .010 (3,81 0,25) e.i.a. date code dimensions in inches (and millimeters) basic switch 04a bat handle 04a-b01 04A-K01 keycap recommended interface for customers who prefer to purchase or design separate keycaps, grayhill recommends the dimensions shown here to acquire parts which will mate well with the basic switch, part number 04a. series 04 4pst features joy stick action position locator on crt screens moves cursor on menu display specifications rating criteria rated: make and break 250 ma at 115 vac or 125 ma at 220 vac resistive load for 500,000 operations contact resistance: 25 milliohms maximum on a new switch insulation resistance: 1,000 megohms at 100 vdc dielectric strength: 500 vac rms minimum operating temperature: -40c to +85c circuitry footprint ordering information description part no. basic switch 04a switch with arrowhead keycap 04A-K01 switch with bat-handle 04a-b01* *shipped with bat handle permanently attached. materials and finishes base, cover and switch actuator: polyester (black) terminals: brass, gold-plated over nickel shorting bar: phosphor bronze, gold-plated over nickel spring: tinned music wire keycap: abs or equivalent bat-handle: abs .195 .005 (4,95 0.13) .046 +.000/ ?.001 (1,17 + 90/ ? 0,03) .375 .005 (9,53 0,13) dia. .469 .010 (11,91 0,25) 1.219 .020 (30,96 0,51) .725 .010 (18,42 0,25) square .487 .010 (12,37) 0,25) 1.315 .020 (33,40 0,51) .250 .010 (6,35 0,25) common .500 (12,7) typ. available from your local grayhill distributor. for prices and discounts, contact a local sales office, an authorized local distributor or grayhill. pushbutton 47
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