39-251 RED

Butt Contact Pushbutton Switches SERIES 39 SPST and SPDT, 1/4 Amp FEATURES • Fully Protected During Flux Cleaning Operations DIMENSIONS In Inches (and millimeters) SPDT–PC Mount Large Button Style .500 ± .015 (12,7 ± 0,38) 39-261* .187 ± .010 (4,75 ± 0,25) DIA. .328 ± .015 (8,33 ± 0,38) Rating at 28 Vdc Resistive Rating at 115 Vac Resistive 1 150 mA .270 (6,86) REF. /4 Amp Rating at 220 Vac Resistive 1 /8 Amp Total Travel Action Operations at Rated Load 500,000 Partial Part Number 39-251* 39-261* Actuating Force (oz.) .090 + .010/ – .015 (2,29 + 0,25/ – 0,38) Momentary .100 ± .010 (2,54 ± 0,25) 10 ± 3 oz. .030 ± .002 (0,76 ± 0,05) DIA. .250 ± .015 (6,35 ± 0,38) .250 ± .010 (6,35 ± 0,25) DIA. Small Button Style .060 (1,52) REF. .084 ± .005 (2,13 ± 0,13) DIA. .050 ± .005 (1,27 ± 0,13) 39-251* .100 ± .015 (2,54 ± 0,38) END OF BUTTON HAS A .200 (5,08) SPHERICAL RADIUS .250 ± .010 (6,35 ± 0,25) DIA. .400 ± .015 (10,16 ± 0,38) E .100 ± .010 (2,54 ± 0,25) .090 ± .010 (2,29 C L ± 0,25) .340 ± .015 (8,64 ± 0,38) .050 ± .005 (1,27 ± 0,13) TYP. .200 ± .015 (5,08 ± 0,38) .084 ± .005 (2,13 ± 0,13) DIA. .100 ± .010 (2,54 ± 0,25) CL .300 ± .010 (7,62 ± 0,25) .100 ± .005 (2,54 ± 0,13) N.C. N.O. XXXX .060 (1,52) REF. .100 ± .015 (2,54 ± 0,38) .050 ± .005 (1,27 ± 0,13) .400 ± .015 (10,16 ± 0,38) .340 ± .015 (8,64 ± 0,38) .050 ± .005 (1,27 ± 0,13) TYP. GRAYHILL Pushbutton Switches .125 ± .010 (3,18 ± 0,25) .068 ± .010 (1,73 ± 0,25) .090 ± .010 (2,29 C ± 0,25) L .100 ± .010 (2,54 ± 0,25) CL .300 ± .010 (7,62 ± 0,25) .100 ± .010 (2,54 ± 0,25) E.I.A. DATE CODE SPECIFICATIONS CIRCUITRY Rating Criteria 2 Circuits Per Switch N.C. Actuator N.C. SPST N.C. SPST N.O. N.O. N.O. Contact Resistance: 25 milliohms maximum on a new switch Voltage Breakdown: 1,000 Vac between mutually insulated parts Insulation Resistance: 1,000 megohms minimum Operating Temperature: -40°C to +125°C Materials and Finishes Alternate Wiring Actuator N.C. SPDT BREAK BEFORE C MAKE CONNECT PINS ON PC BOARD E-11 N.O. Button: Nylon Base and Cover: Polyester, red in color Shorting Bar: Phosphor bronze, gold-plated over nickel Terminals: Brass, gold-plated over nickel Spring: Tinned music wire O-Ring: Fluorosilicone Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois ORDERING INFORMATION *Complete Part Number 39-251 RED 39-251 BLK 39-261 RED 39-261 BLK Description Small Red Button, SPDT Small Black Button, SPDT Large Red Button, SPDT Large Black Button, SPDT Available from your local Grayhill Distributor. For prices and discounts, contact a local Sales Office, an authorized local Distributor or Grayhill. 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com