38BM-0-H-3-S

Butt Contact Pushbutton Switches Series 38BM and 38BC Sub-Miniature Surface Mount Features • Surface Mount Process Compatible • Sealed Construction • SPST and SPDT, Momentary Contact • Extended or Flush Plunger • Drop-In Replacement for Industry Standard SPECIFICATIONS DIMENSIONS in inches (and millimeters) 38BM Pushbutton Switches PC Mounting .320 (8,13) .105 (2,67) TYP. .162 (4,11) DIM "A" .200 (5,08) CL .410 (10,41) MAX. SPST .100 (2,54) DIA. .180 (4,57) DIA. .125 (3,18) .075 (1,91) .024 (0,61) .020 (0,51) TYP. .030 (0,76) .289 (7,34) .320 (8.13) .200.010 (5,080,25) .162 (4,11) .024 (0,61) SPDT Rating Criteria .075 (1,91) Operating Life: 80,000 make-and-break cycles at full load Contact Rating (resistive load): Gold Contacts: 0.4 VA maximum at 20 Vac or Vdc maximum Silver Contacts: I.O. Amps maximum at 120 Vac or 28 Vdc Contact Resistance: Below 20 milliohms typical initial at 2-4 Vdc, 100 mA Insulation Resistance: 1000 megaohms min. Voltage Breakdown: 1000 Vrms minimum at sea level Operating Temperature: -30°C to +85°C Solderability: Per MIL-STD-202F, Method 208D, or EIA RS-186E Method 9 (1 hour steam aging) .105 (2,67) TYP. .100 (2,54) .040 .128 (1,02) (3,25) TYP. TYP. .080 (2,03) TYP. .150 (3,81) TYP. STANDOFF PADS .040 (1.02) .070 (1.78) .143 (6.63) 90˚ "A" DIM "A" .368 .080 (9,35) (2,03) .200.010 (5,080,25) 38BC .125 (3,18) .070 (1,78) .040 (1,02) .143 TYP. (3,63) TYP. .030 (0,76) .200 (5.08) 1 2 3 .410 (10,41) MAX. .289 (7,34) .368 .128 (3,25) (9.35) .080 (2,03) .080 (2,03) .150 (3.81) TERMINAL ID .040 (1.02) TERMINAL PADS Materials and Finishes Base and Cover: Thermoplastic (UL 94V-0) Plunger: Thermoplastic (UL 94V-0), with standard internal o-ring seal Terminals: Copper alloy, gold plate over nickel plate Spring: Plated Music Wire Contact System: Copper alloy, gold or silver plate (as specified) over nickel plate Switch Support: Brass, tin-plated 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 Series 38BM AND 38BC Sub-Miniature Surface Mount TAPE AND REEL PACKAGING Circuitry SWITCHES AND COVER TAPE NOT SHOWN FOR CLARITY DIRECTION OF FEED SPSt n.O. SPST–N.O. N.C. TERM. 1 COMM TERM. 2 1.260±.012 (32.00± 0.3MM) N.O. TERM. 3 13 INCH REEL ORDERING INFORMATION Series: 38BM = SPST, Momentary, Surface Mount 38BC = SPDT, Momentary, Surface Mount Dimension "A": 0 = 0.020" 4 = 0.215" 38BX-0-H-3-S Seal: S = O-Ring Seal Contact Material: 1 = Solder Dip over Gold 2 = Solder Dip over Silver 3 = Gold - RoHS Compliant 4 = Silver - RoHS Compliant Orientation: H = Horizontal to PCB Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com Pushbutton Switches SPDT–N.O. 38BM-4-H-1-S SHOWN FOR REFERENCE ONLY .630±.004 (16.00±0.1MM) POCKET CENTER LINES