Butt Contact Pushbutton Switches SERIES 04 4PST FEATURES • Joy Stick Action • Position Locator On CRT Screens • Moves Cursor On Menu Display DIMENSIONS In Inches (and millimeters) Basic Switch Bat Handle 04A-B01 .188 ± .005 (4,78 ± 0,13) DIAMETER .375 ± .005 (9,53 ± 0,13) DIA. .187 ±.010 (4,75 ± 0,25) .469 ± .010 (11,91 ± 0,25) .460 ± .010 (11,68 ± 0,25) .850 (21,59) SQUARE 1.219 ± .020 (30,96 ± 0,51) .550 ± .010 (13,97 ± 0,25) .125 (3,18) RADIUS 4 PLACES E.I.A. DATE .020 ± .010 (0,51 ± 0,25) CODE .150 ± .010 (3,81 ± 0,25) .040 (1,02) DIA. 5 PLACES Keycap .725 ± .010 (18,42 ± 0,25) SQUARE 04A-K01 .487 ± .010 (12,37) ± 0,25) .046 +.000/ –.001 (1,17 + 90/ – 0,03) 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. Pushbutton Switches 04A 1.315 ± .020 (33,40 ± 0,51) .195 ± .005 (4,95 ± 0.13) SPECIFICATIONS CIRCUITRY Rating Criteria Materials and Finishes 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: -40°C to +85°C 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 Footprint .250 ± .010 (6,35 ± 0,25) .500 (12,7) TYP. COMMON ORDERING INFORMATION Description Part No. Basic Switch Switch with Arrowhead Keycap Switch with Bat-Handle 04A 04A-K01 04A-B01* *Shipped with bat handle permanently attached. Available from your local Grayhill Distributor. 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 Pushbutton 47