38BM-4-H-3-S Grayhill Inc, 38BM-4-H-3-S Datasheet
38BM-4-H-3-S
Manufacturer Part Number
38BM-4-H-3-S
Description
Pushbutton Switch, SPST, Momentary, .215" Plunger, Gold Contact, O-ring Seal, RoHS Compliant
Manufacturer
Grayhill Inc
Series
38BMr
Type
Standardr
Datasheet
1.38BM-0-H-3-S.pdf
(2 pages)
Specifications of 38BM-4-H-3-S
Circuit
SPST-NO
Switch Function
Off-Mom
Contact Rating @ Voltage
0.4VA @ 20VAC/DC
Actuator Type
Plunger
Mounting Type
Surface Mount
Termination Style
Gull Wing
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Illumination Type, Color
-
Illumination Voltage (nominal)
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
38BM-4-H-3-S
Manufacturer:
GHY
Quantity:
70
Pushbutton
Rating Criteria
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)
Materials and Finishes
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
38BM
38BC
SPST
SPDT
4
C
L
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
.410 (10,41)
(8,13)
.320
MAX.
In inches (and millimeters)
Butt Contact Pushbutton Switches
.100 (2,54)
DIA.
.180 (4,57)
DIA.
.125
(3,18)
DIM "A"
DIM "A"
(1,91)
.075
.125
(3,18)
.162
(4,11)
.162
(4,11)
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
Available from your local Grayhill Distributor.
For prices and discounts, contact a local Sales
Office, an authorized local Distributor or Grayhill.
(7 34)
.075
(1,91)
.289
(0,76)
(7,34)
.289
.030
(5,08)
.200
.030
(0,76)
"
.024
(0,61)
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
" A
.024
(0,61)
(5,080,25)
.200.010
90˚
(2,54)
.100
.105 (2,67)
TYP.
1
.410 (10,41)
(8.13)
MAX.
.320
2
3
.200.010
(5,080,25)
.020 (0,51)
TYP.
.105
(2,67)
TYP.
.200
(5.08)
TERMINAL ID
(9.35)
.368
(9,35)
.368
.128 (3,25)
(1,02)
TYP.
.040
(2,03)
.080 (2,03)
.080
.040
(1.02)
PC Mounting
.143
(3,63)
TYP.
STANDOFF PADS
TERMINAL PADS
.070
(1.78)
.070
(1,78)
.040
(1.02)
.080 (2,03)
TYP.
.080
(2,03)
(1,02)
TYP.
.040
.150 (3,81)
TYP.
.143
(6.63)
.150
(3.81)
(3,25)
TYP.
.128
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38BM-4-H-3-S Summary of contents
Page 1
... 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 ...
Page 2
... SPST–N.O. N.C. TERM. 1 COMM TERM. 2 N.O. TERM. 3 SPDT–N.O. ORDERING INFORMATION Series: 38BM = SPST, Momentary, Surface Mount 38BC = SPDT, Momentary, Surface Mount Dimension "A" 0.020" 0.215" 38BX-0-H-3-S Seal O-Ring Seal Contact Material Solder Dip over Gold 2 = Solder Dip over Silver ...