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Wiping Contact Pushbutton Switches
SERIES 49
Subminiature Horizontal PC Mount
FEATURES
? Process Sealed Plunger
? Printed Circuit Board Mount
? SPST and SPDT (Momentary
Contact)
? Gold-Plated Contacts
? Drop-In Industry Replacement
DIMENSIONS In inches (and millimeters)
APPLICATIONS
? Telecommunications
Equipment
? Networking Equipment
? Personal Computers
Front View
Back View
SPST Version
Side View
SPDT Version
.089 (2,26)
.177 (4,50)
.078 (1,98)
.276 (7,01)
.078 (1,98)
.276 (7,01)
.228
(5,79)
.065
(1,65)
.015
(0,38)
.130
.052
(1,32)
DIA.
.358
(9,09)
REF.
.052
(1,32)
DIA.
.358
(9,09)
REF.
EPOXY
SEAL
.015 (0,38 )
(3,30)
1
3
1
2
3
.089 (2,26)
.015 ± .003
(0,38 ± 0,08) TYP.
.038 (0,97)
.200 (5,08)
.038 (0,97)
.020 ± .003
(0,51 ± 0,08) .200 (5,08)
TYP.
.100 (2,54)
.020 ± .003
(0,51± 0,08)
TYP.
.100 (2,54)
Unless otherwise specified, standard tolerances are ± 0.010 (0,25)
SPECIFICATIONS
Rating Criteria
CIRCUITRY OPTIONS
PC MOUNTING
Operating Life: 40,000 make-and-break cycles
at full load
Contact Rating (resistive load):
Gold Contacts: 0.4 VA maximum at 20 Vac
or Vdc maximum
Contact Resistance: Below 50 milliohms
typical initial at 2-4 Vdc, 100 mA
C
1
SPST
Wiping Contacts
3
N.O.
.100 (2,54)
TYP.
Insulation Resistance: 1000 megaohms
minimum
Voltage Breakdown: 500 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
Base and Cover: Thermoplastic (UL 94V-0)
C
2
SPDT
Wiping Contacts
1
3
N.C.
N.O.
.035 DIA.
(0,89) TYP.
49-01: Omit Center Hole
Plunger: Thermoplastic (UL 94V-0)
Terminals: Copper alloy, tin/lead over nickel
plate, solder-coated
Spring: Plated music wire
ORDERING INFORMATION
Series: 49 = Subminiature, Horizontal PC Mount
Contact: Phospher bronze, gold over nickel
plate
49-01
Circuitry: 01 = SPST, 02 = SPDT
Available from your local Grayhill Component 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
E-32
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