MICRO SWITCH™ Premium
Subminiature Basic Switches
SX Series
Datasheet
2sensing.honeywell.com
What makes our switches better?
• Industry-leading life cycle rating reduces the need to replace
switches over life in an OEM platform – reducing total
system cost
Very wide temperature range allows for years of reliable
performance in the harshest of conditions
MIL-PRF-8805 qualified listings
Operating forces as low as 0,147 N [15 g] and differential
travel as low as 0,025 mm [0.001 in] delivers consistent
precise switch characteristics
MICRO SWITCH™ SX Series
Premium Subminiature Basic Switches
The industry-dening name in snap-action switches, Honeywell MICRO SWITCH™ premium subminiature switches are
designed for repeatability and enhanced product life. The MICRO SWITCH™ SX Series delivers consistent performance
within a range of conditions.
Offering enhanced repeatability, the MICRO SWITCH™ SX Series’ lower operating force provides for application versatility.
Like the MICRO SWITCH™ SM Series, the SX Series (which is a smaller package) offers gold contacts for low energy
switching and bifurcated gold contacts for maximum reliability. Bifurcated contacts provide parallel redundancy within the
SX switch.
COST OPTIMIZATION • PERFORMANCE
RELIABILITY • GLOBAL ACCEPTANCE
Small in size,
large in capability!
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Features
and Benefits
LONG LIFE
With a mechanical life of up to 10,000,000 operations, SX Series switches boast
an industry-leading life cycle.
APPLICATION FLEXIBILITY
MICRO SWITCH™ SX Series delivers a selection of actuation, electrical
termination, and operating characteristics along with high-temperature
construction options.
INDUSTRY-LEADING TEMERATURE RANGE
With a wide temperature range of -54 °C to 204 °C [-65 °F to 400 °F],
SX Series switches allow for years of reliable performance in harsh
conditions.
COMPACT AND ROBUST
Built from military-grade components, MICRO SWITCH™ SX switches
deliver MIL-PRF-8805 qualified listings in a lightweight, subminiature package.
SX switches are available with FAA-PMA approvals for commercial aircraft
applications.
EASILY CONTROLS LOW-VOLTAGE DC APPLICATIONS
Switches available with a choice of silver, gold-plated, or bifurcated gold
contacts to handle a variety of electrical load requirements.
GLOBAL APPROVALS
UL/CSA, cUL, ENEC, and CE approvals allows the customer to utilize switches
in products sold across the globe - in some of the most regulated regions.
Precision switch characteristics
Life of up to 10,000,000 cycles
4sensing.honeywell.com
AEROSPACE
• In precision switch assemblies for commercial aircraft to monitor doors for
“closed” and “locked” position
• Monitor whether landing gear is “up” or “down and locked”
• In precision switch assemblies for commercial cockpit applications for
pushbuttons, toggle, or joystick assemblies
• MIL-PRF-8805 listings suitable for precision switch assemblies in military
applications
• FAA-PMA approvals for commercial aircraft
INDUSTRIAL
• In precision switch assemblies for pressure switches and temperature switches
• In power generation, fuel level switch for gas and oil
Potential Applications
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MICRO SWITCH™ Premium Subminiature Basic Switches
Table 1. Specifications
Characteristic Parameter
Differentiator low operating force to 0,147 N [15 g] max; sensitive differential travel as low as 0,025 mm [0.001 in] max.;
power load switching capability to 7 A
Ampere rating 1 A to 7 A
Circuitry SPDT, SPNO
Operating force 0.71 oz to 6 oz
Termination quick connect, solder, pcb
Actuator pin plunger, straight lever, roller lever, simulated roller lever, offset flag lever, crossed roller lever
Voltage 125 Vac, 250 Vac, 28 Vdc
Circuitry SPNO, SPDT, DPDT
Agency approvals UL, CE, CSA, ENEC, MIL-PRF-8805, FAA-PMA
Agency file information UL: E12252; CSA: LR41372
Operating temperature -54 °C to 121 °C [-65 °F to 250 °F]; select catalog listings 204 °C [400 °F]
Contacts silver, gold-plated, bifurcated gold
Housing phenolic or thermoplastic polyester
Sealing not weather sealed
Mechanical life up to 10,000,000 operations for 11SX Series
up to 1,000,000 operations for 1SX Series
Size 10,2 mm H x 5,08 mm W x 12,7 mm L [0.4 in H x 0.20 in W x 0.5 in L]
ELECTRICAL DATA AND UL CODES
Table 2. UL Electrical Ratings
Code Circuitry Electrical data and UL codes
A SPDT
5 A res., 3 A ind., (sea level),
4 A res., 2 A ind., (50,000 feet), 28 Vdc
5 A res. or ind. 115 Vac, 60 Hz. UL/CSA rating: 5 A, 250 Vac
B SPDT 7 A res., 4 A ind., (sea level),
7 A res., 2.5 A ind., (50,000 feet), 28 Vdc. UL/CSA rating: 7 A, 250 Vac
C SPDT 3.5 A res., 2 A ind., (sea level),
3.5 A res., 1.5 A ind., (50,000 feet), 28 Vdc. UL rating: 7 A, 250 Vac
D SPDT 1 A res., 0.5 amp ind., (sea level and 50,000 feet), 28 Vdc.
UL/CSA rating: 1 amp, 125 Vac
E SPDT 3 A res., 2 A ind., (sea level), 28 Vdc.
UL rating: 3 A, 250 Vac
F SPDT
7 A res., 4 A ind., 2.5 A lamp load, (sea level),
4 A res., 2.5 A ind., 2.5 A lamp load, (50,000 feet), 28 Vdc.
7 A res., 7 A ind., 2 A lamp load, 115 Vac, 60 Hz (sea level)
G SPDT 2 A res., lamp ind., (sea level) 28 Vdc
H SPDT .010 A res. and ind., (sea level). 28 Vdc.
UL/CSA rating: 1 A, 125 Vac
ISPDT 7 A res., 4 A ind., (sea level), 28 Vdc
L SPDT 1 A res., 1/2 A ind., (sea level) 28 Vdc
6sensing.honeywell.com
SX Series O.F. • Operating force
R.F. • Release force
P.T. • Pretravel
O.T. • Overtravel
D.T. • Differential travel
O.P. • Operating position
MICRO SWITCH™ SX SERIES ORDER GUIDE • PIN PLUNGER
Catalog
Listing Recommended For
Electrical
Data and
UL Codes
O.F.
N [oz]
R.F. min.
N [ oz]
P.T. max.
mm [in]
O.T. min.
mm [in]
D.T.
mm [in]
O.P. *
mm [in]
12SX2-T Bifurcated gold contacts 0.01 A
H
0.7 to 1,39
[2.5 to 5]
0,28 [1] 0,51 [0.02] 0,1 [0.004] 0,051
[0.002] 8,13 [0.32]
3SX1-T Gold-plated contacts
(1SX type)
1 A
D1,39 [5] 0,28 [1] 0,51 [0.02] 0,1 [0.004]
0,13 [0.005]
8,13 [0.32]
12SX1-T Enhanced reliability (gold
bifurcated contacts)
1 A
D1,39 [5] 0,28 [1] 0,51 [0.02] 0,1 [0.004] 0,076
[0.003] 8,13 [0.32]
12SX3-T Lowest differential travel,
bifurcated gold contacts
1 A
H1,39 [5] 0,28 [1] 0,51 [0.02] 0,1 [0.004] 0,025
[0.001] 8,13 [0.32]
13SX21-T Gold-plated contacts
(11SX type)
1 A
D1,39 [5] 0,28 [1] 0,51 [0.02] 0,1 [0.004] 0,051
[0.002] 8,13 [0.32]
23SX39-T
(MS24547-2)
MIL-PRF-8805, gold
contacts, 82 °C [180 °F]
max. use
1 A
D1,39 [5] 0,28 [1] 0,51 [0.02] 0,1 [0.004]
0,13 [0.005]
8,13 [0.32]
23SX39-T2
(MS24547-5)
MIL-PRF-8805, gold
contacts, 82 °C [180 °F]
max. use
1 A
D1,39 [5] 0,28 [1] 0,51 [0.02] 0,1 [0.004]
0,13 [0.005]
8,13 [0.32]
93SX39-T
(M8805/109-03)
0.156 in wide, gold
contacts, 82 °C [180 °F]
1 A
D1,39 [5] 0,28 [1] 0,51 [0.02] 0,1 [0.004]
0,13 [0.005]
8,13 [0.32]
411SX21-T
(M8805/106-01)
204 °C [400 °F] for
100 hours
2 A
G1,39 [5] 0,28 [1] 0,51 [0.02] 0,1 [0.004]
0,13 [0.005]
8,13 [0.32]
413SX21-T
(M8805/106-02)
204 °C [400 °F] for
100 hours
1 A
L1,39 [5] 0,28 [1] 0,51 [0.02] 0,1 [0.004] 0,051
[0.002] 8,13 [0.32]
11SX1-T Lowest differential travel 3 A
E0,97 [3.5] 0,21 [0.75] 0,51 [0.02] 0,1 [0.004] 0,025
[0.001] 8,13 [0.32]
11SX21-T General purpose 5 A
A
0.7 to 1,39
[2.5 to 5]
0,28 [1] 0,51 [0.02] 0,1 [0.004] 0,051
[0.002] 8,13 [0.32]
11SX22-T General purpose 5 A
A1,39 [5] 0,28 [1] 0,51 [0.02] 0,1 [0.004] 0,025
[0.001] 8,13 [0.32]
17SX21-T Enhanced stability under
varying humidity, 11SX type
5 A
A1,39 [5] 0,28 [1] 0,51 [0.02] 0,1 [0.004] 0,051
[0.002] 8,13 [0.32]
1SX1-T Power-duty switching 7 A
B1,39 [5] 0,28 [1] 0,51 [0.02] 0,1 [0.004] 0,13
[0.005] 8,13 [0.32]
1SX12-T Low differential travel 7 A
C1,39 [5] 0,28 [1] 0,51 [0.02] 0,1 [0.004] 0,051
[0.002] 8,13 [0.32]
1SX48-T Added overtravel 7 A
B1,39 [5] 0,28 [1] 0,51 [0.02] 0,25 [0.01]
0,13 [0.005]
8,13 [0.32]
2SX1-T Lower operating force 7 A
B0,83 [3] 0,28 [1] 0,51 [0.02] 0,1 [0.004]
0,13 [0.005]
8,13 [0.32]
4SX1-T 204 °C [400 °F] for 100
hours
7 A
I1,39 [5] 0,28 [1] 0,51 [0.02] 0,1 [0.004]
0,13 [0.005]
8,13 [0.32]
21SX1-T Enhanced stability under
varying humidity, 1SX type
7 A
B1,39 [5] 0,28 [1] 0,51 [0.02] 0,1 [0.004]
0,13 [0.005]
8,13 [0.32]
21SX39-T
(MS24547-1)
MIL-PRF-8805
82 °C [180 °F]
7 A
F1,39 [5] 0,28 [1] 0,51 [0.02] 0,1 [0.004]
0,13 [0.005]
8,13 [0.32]
21SX39-T2
(MS24547-4)
MIL-PRF-8805
82 °C [180 °F]
7 A
F1,39 [5] 0,28 [1] 0,51 [0.02] 0,1 [0.004]
0,13 [0.005]
8,13 [0.32]
91SX39-T
M8805-109-01
0.156 in wide, 82 °C
[180 °F]
7 A
F1,39 [5] 0,28 [1] 0,51 [0.02] 0,1 [0.004]
0,13 [0.005]
8,13 [0.32]
* ±0,38 mm [±0.015 in]
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sensing.honeywell.com
MICRO SWITCH™ Premium Subminiature Basic SwitchesO.F. • Operating force
R.F. • Release force
P.T. • Pretravel
O.T. • Overtravel
D.T. • Differential travel
O.P. • Operating position
MICRO SWITCH™ SX SERIES ORDER GUIDE • INTEGRAL LEVER
Catalog
Listing Recommended For
Electrical
Data and
UL Codes
O.F.
N [oz]
R.F. min.
N [ oz]
P.T. max.
mm [in]
O.T. min.
mm [in]
D.T.
mm [in]
O.P.
mm [in]
311SX1-T 3,43 mm [0.135 in] straight
lever
5 A
A0,49 [1.76] 0,09 [0.32] 1,65
[0.065]
0,36
[0.014]
0,51
[0.020]
8,43 mm
±1,14 mm
[0.332 in
±0.045 in]
313SX1-T 3,43 mm [0.135 in] straight
lever with gold contacts
1 A
D0,49 [1.76] 0,09 [0.32] 1,65
[0.065]
0,36
[0.014]
0,51
[0.020]
8,43 mm
±1,14 mm
[0.332 in
±0.045 in]
311SX2-T 12,8 mm [0.505 in] straight
lever
5 A
A0,31 [1.1] 0,05 [0.18] 2,92
[0.115]
0,64
[0.025]
0,89
[0.035]
8,26 mm
±1,91 mm
[0.325 in
±0.075 in]
313SX2-T 12,8 mm [0.505 in] straight
lever with gold contacts
1 A
D0,31 [1.1] 0,05 [0.18] 2,92
[0.115]
0,64
[0.025]
0,89
[0.035]
8,26 mm
±1,91 mm
[0.325 in
±0.075 in]
311SX3-T 24,5 mm [0.965 in] straight
lever
5 A
A0,20 [0.71] 0,03 [0.11] 4,70
[0.185]
0,61
[0.024]
1,52
[0.060]
7,75 mm
±2,92 mm
[0.305 in
±0.115 in]
313SX3-T 24,5 mm [0.965 in] straight
lever with gold contacts
1 A
D0,20 [0.71] 0,03 [0.11] 4,70
[0.185]
0,61
[0.024]
1,52
[0.060]
7,75 mm
±2,92 mm
[0.305 in
±0.115 in]
311SX4-T 1,1 mm [0.042 in]
simulated roller lever
5 A
A0,58 [2.1] 0,11 [0.39] 1,27
[0.050]
0,25
[0.010]
0,38
[0.015]
14,15 mm
±0,91 mm
[0.557 in
±0.036 in]
313SX4-T
1,1 mm [0.042 in]
simulated roller lever with
gold contacts
1 A
D0,58 [2.1] 0,11 [0.39] 1,27
[0.050]
0,25
[0.010]
0,38
[0.015]
14,15 mm
±0,91 mm
[0.557 in
±0.036 in]
311SX5-T 11,7 mm [0.459 in]
simulated roller lever
5 A
A0,31 [1.1] 0,05 [0.18] 2,67
[0.105]
0,56
[0.022]
0,89
[0.035]
14,86 mm
±1,65 mm
[0.585 in
±0.065 in]
313SX5-T
11,7 mm [0.459 in]
simulated roller lever with
gold contacts
1 A
D0,31 [1.1] 0,05 [0.18] 2,67
[0.105]
0,56
[0.022]
0,89
[0.035]
14,86 mm
±1,65 mm
[0.585 in
±0.065 in]
8sensing.honeywell.com
SX Series
NUMERIC DESIGNATIONS FOR MICRO SWITCH™ SX SERIES/ORDER GUIDE
Prex Description
1SX Plastic pin plunger, fine silver contacts with 0.188 mounting hole centers
2SX 1SX with low force characteristics (3 oz. max. operating force)
3SX 1SX with gold/gold alloy contacts
4SX 1SX with high temperature construction [400 °F]
6SX 1SX with high temperature and gold/gold alloy contacts
7SX 2SX with gold/gold alloy contacts
11SX Low force characteristics (OF and DT)
12SX 11SX with bifurcated gold contacts
13SX 11SX with gold/gold alloy contacts
14SX 11SX with high temperature construction
21SX 1SX with MIL-approvals
22SX 2SX with MIL-approvals
23SX 1SX with gold/gold alloy contacts and MIL-approvals
311SX 11SX with integral lever actuator
312SX 12SX with integral lever actuator
313SX 13SX with integral lever actuator
323SX 311SX with gold/gold alloy contacts
91SX Thin SX (0.156 in thick)
93SX Thin SX (0.156 in thick), gold/gold alloy contacts
411SX 11SX with high temperature construction [400 °F]
9
sensing.honeywell.com
MICRO SWITCH™ Premium Subminiature Basic Switches
SX SERIES • STANDARD ACTUATOR OPTIONS, SCREW TERMINALS, & DIMENSIONS (mm/in)
Pin plunger, “T” terminals Pin plunger, “T1” terminals Integral lever,
3,43 mm [0.135 in] straight lever
12,8 mm [0.505 in] straight lever
Integral lever,
24,5 mm [0.965 in] straight lever
Integral lever,
1,1 mm [0.042 in] simulated roller lever
Integral lever,
11,7 mm [0.459 in] simulated roller lever
MICRO SWITCH™ SX SERIES AVAILABLE TERMINALS
Mounting torque:
0,226 Nm max.
[2 in-lb max.]
10 sensing.honeywell.com
SX Series
MICRO SWITCH™ JX SERIES AUXILIARY ACTUATORS FOR THE MICRO SWITCH™ SX SERIES
SWITCHES (stainless steel actuators and hardware)
Description Actuator
length
Operting
Force
max.
Release
Force
min.
Pretravel
max.
Overtravel
min.
Differential
Travel max.
Operating
Point
approx.
Free
Position
ref.
JX-20
JX-219
Straight lever
(JX-219
for higher
temperatures)
18,3 mm
[0.72 in]***
0,28 N
[1 oz]
approx.
0,04 N
[0.14 oz]
– 0,76 mm
[0.030 in]
approx.
0,76 mm
[0.030 in]
approx.
10,8 mm
[0.425 in]
12,3 mm
[0.485 in]
JX-25
JX-220
Roller lever
(JX-220
for higher
temperatures)
16,5 mm
[0.65 in]***
0,42 N
[1.5 oz]
0,04 N
[0.14 oz]
– 0,51 mm
[0.020 in]
0,76 mm
[0.030 in]
14,9 ,mm
[0.585 in]
168 mm
[0.660 in]
JX-40
JX-95
Straight
leaf (JX-95
for higher
temperatures)
9,4 mm
[0.37 in]D
1,95 N
[7 oz]
0,56 N
[2 oz]
5,7 mm
[0.225 in ]
approx.
0,38 mm
[0.015 in]
0,64mm
[0.025 in]
7,5 mm
[0.295 in]
12,3 mm
[0.485 in]
JX-41**
Reverse leaf 9,4 mm
[0.37 in]D
1,67 N
[6 oz]
0,28 N
[1 oz]
2,79 mm
[0.110 in]
approx.
0,38 mm
[0.015 in]
0,64mm
[0.025 in]
7,5 mm
[0.295 in]
9,4 mm
[0.370 in]
JX-45
JX-96
Roller leaf
(JX-96 for
higher
temperatures)
6,1 mm
[0.24 in]D
1,95 N
[7 oz]
0,28 N
[1 oz]]
5,7 mm
[0.225 in ]
approx.
0,38 mm
[0.015 in]
0,64mm
[0.025 in]
12,2 mm
[0.48 in]
16,5 mm
[0.650 in]
JX-51**
Reverse roller
leaf
7,6 mm
[0.30 in]D
1,67 N
[6 oz]
0,56 N
[2 oz]
2,79 mm
[0.110 in]
approx.
0,38 mm
[0.015 in]
0,64mm
[0.025 in]
12,8 mm
[0.505 in]
14,7 mm
[0.58 in]
JX-4
Tandem leaf 7,9 mm
[0.31 in]D
4,17 N
[15 oz]
0,83 N
[3 oz]
1,65 mm
[0.065 in]
approx.
0,20 mm
[0.008 in]
0,76 mm
[0.030 in]
7,6 mm
[0.30 in]
9,40 mm
[0.37 in]
** Switch is mounted with plunger end reversed from JX-40
NOTE: Above actuators should be used below 149 °C [300 °F], except listings JX-95, JX-96, JX-219, and JX-220 are for use
with 4SX1-T to 204 °C [400 °F]
D Measurement for leaf-style levers is from center of mounting hole
nearest tip of lever to the point indicated on the drawing
*** Measurement for hinge-style levers is from pivot point of the lever
to the end of the lever or center of the lever’s roller
D
***
11
sensing.honeywell.com
MICRO SWITCH™ Premium Subminiature Basic Switches
ADDITIONAL INFORMATION
The following associated literature is available on Honeywell’s web
site at sensing.honeywell.com:
• Product installation instructions
• Product range guide
• Aerospace range guide
• Applying basic switches
• Low energy switching guide
• Product application-specific information
– Application Note: Central Vacuum System
– Application Note: Electronic Taping Machine
– Application Note: Sensors and Switches in Sanitary Valves
– Application Note: Sensors and Switches in Oil Rig Applications
– Application Note: Sensors and Switches for Potential Medical
Applications
WARNING
PERSONAL INJURY
DO NOT USE these products as safety or emergency stop
devices or in any other application where failure of the
product could result in personal injury.
Failure to comply with these instructions could result in
death or serious injury.
WARNING
MISUSE OF DOCUMENTATION
• The information presented in this product sheet is for
reference only. Do not use this document as a product
installation guide.
• Complete installation, operation, and maintenance
information is provided in the instructions supplied with
each product.
Failure to comply with these instructions could result in
death or serious injury.
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as being free of
defective materials and faulty workmanship. Honeywell’s standard
product warranty applies unless agreed to otherwise by Honeywell
in writing; please refer to your order acknowledgement or consult
your local sales office for specific warranty details. If warranted
goods are returned to Honeywell during the period of coverage,
Honeywell will repair or replace, at its option, without charge those
items it finds defective. The foregoing is buyer’s sole remedy
and is in lieu of all other warranties, expressed or implied,
including those of merchantability and fitness for a particu-
lar purpose. In no event shall Honeywell be liable for conse-
quential, special, or indirect damages.
While we provide application assistance personally, through our
literature and the Honeywell website, it is up to the customer to
determine the suitability of the product in the application.
Specifications may change without notice. The information we
supply is believed to be accurate and reliable as of this printing.
However, we assume no responsibility for its use.
004968-2-EN IL50 GLO
November 2013
Copyright © 2013 Honeywell International Inc. All rights reserved.
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