Pushbutton Switches
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.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: -40°C to +85°C
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
