Butt Contact Pushbutton Switches
SerieS 39
Miniature Limit
FeatureS
• Adjustable Location Setting
• Plunger Sealed Version
diMenSiOnS
in inches (and millimeters)
E.I.A. DATE CODE
5/16-32 UNEF-2A
THREAD
HEX. NUT (2)
.093 (2,36) THICK
.437 (11,10) ACROSS
FLATS
A = .187 – .015
(4,75 – 0,38)
B = .450 – .015
(11,43 – 0,38)
.072 – .005
(1,83 – 0,13)
A
XXXX
SPSt–normally Open,
With Overtravel
39-101
.287 (7,29)
MAX.
.136 – .005 (3,45 – 0,13) DIA.
B
.837
.650
– .032 (21,26)
(16,51 REF.
– 0,81)
rating at
115 Vac
resistive
1
rating at
220 Vac
resistive
Operations
at rated
Load
Part
number
Button
Color
Nat. Nylon
/
2
Amp
1
/
4
Amp 500,000 39-101
action
total
travel
Over
travel
Mounting Hole
.339 (8,61) Diameter
‘D’ shape per above.
.068 – .015 (1,73 – 0,38)
actuating
Force (oz.)
+ 3
.187 ± .015
.060 (1,52) Min.
Momentary
5
(4,75 ± 0,38) from top of bushing
– 2
Pushbutton Switches
Terminals are not oriented to bushing flat
rating at
115 Vac
resistive
150 mA
150 mA
1
SPSt–normally Open,
With extended Overtravel
39-102
39-103
E.I.A. DATE
CODE
5/16-32
UNEF-2A
THREAD
A = .250 ± .015
(6,35 ± 0,38)
B = .600 ± .015
(15,24 ± 0,38)
.072 ± .005
(1,83 ± 0,13)
.110 ± .005
(2,79 ± 0,13) DIA.
A
XXXX
SPSt–normally Open,
With Overtravel, Sealed actuator
39-701
E.I.A. DATE
CODE
5/16-32
UNEF-2A
THREAD
A = .187 – .015
(4,75 – 0,38)
B = .600 – .015
(15,24 – 0,38)
.072 – .005
(1,83 – 0,13)
.110 – .005
(2,79 – 0,13) DIA.
A
XXXX
rating at
220 Vac
resistive
75 mA
Operations
Part
at rated
number
Load
30,000 39-102
Button
Color
Nat. Nylon
Nat. Nylon
Nat. Nylon
actuating
Force (oz.)
6.8 ± 5
75 mA 00,000 39-701
1
1
/
2
Amp
action
/
4
Amp
total
travel
30,000 39-103
Over
travel
39-102 and 39-103:
.200 (5,08) Nominal.
from top of bushing
39-701:
.060 (1,52) Min.
from top of bushing
B
1.050
.800 (26,67)
±.032 REF.
(20,32
± 0,81)
B
.987
.800 (25,07)
–.032 REF.
(20,32
– 0,81)
Momentary
.250 ± .015
(6,35 ± 0,38)
.187 ± .015
(4,75 ± 0,38)
.068 – .015 (1,73 – 0,38)
Momentary
8 ± 4
.068 ± .015 (1,73 ± 0,38)
Mounting Nuts per above.
E.I.A. DATE CODE
5/16-32 UNS-2A
THREAD
SPSt–normally Closed,
Sealed actuator
39-702
.110 – .005 (2,79 – 0,13) DIA.
A
XXXX
A = .165 +.035 .015
(4,19 +0,89 0,38)
B = .410 – .015
(10,41 – 0,38)
B
Mounting Nuts per above.
.020 (0,51) REF.
.040 (1,02) REF.
.775
.610
– .032 (19,69)
REF.
(15,5
– 0,81)
rating at
115 Vac
resistive
1
rating at
220 Vac
resistive
Operations
at rated
Load
Part
number
Button
Color
Nat. Nylon
actuating
Force (oz.)
/
4
Amp
1
/
8
Amp 100,000 39-702
action
total
travel
Over
travel
.100 (2,54) MAX.
.100 – .005 (2,54 – 0,13)
.060 – .005 (1,52 – 0,13)
.042 ± .010
Momentary
None
(1,07 ± 0,25)
8 ± 4
CirCuitry
Materials and Finishes
Standard OPtiOnS
SPSt n.O.
SPSt n.C.
SPeCiFiCatiOnS
rating Criteria
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 +85°C
Bushing and Mounting nuts: Brass, tin zinc
insulation Sleeve:
Molded polyester for
39-101, 39-102, 39-103 and 39-701: phenolic
per MIL-M-14 type CFG for 39-702
Base: Thermoset plastic
terminals: Commercial bronze, gold plated over
nickel for 39-101, 39-102, 39-103 and 39-701;
silver for 39-702
Springs: Tinned music wire
Contacts: Commercial bronze, gold-plated for
39-101, 39-102, 39-103 and 39-701; fine silver
for 39-702
Button:
Thermoplastic
O-ring: (39-701 & 39-702) Silicone
Optional plating: gold-plated contacts for dry
circuit conditions, contact Grayhill.
OrderinG inFOrMatiOn
Part
no.
39-101
39-102
39-103
39-701
39-702
description
SPST, N.O. With Overtravel
SPST, N.O. With Extended Overtravel
SPST, N.O. With Extended Overtravel
SPST, N.O. With Overtravel, Sealed
SPST, N.C. Sealed
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
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