littelfuse.com© 2019 Littelfuse Revised: 02/08/19
Specifications are subject to change without notice.
Reed Sensors
Flange Mounting Sensor > 59135
59135 High Temperature Flange Mount Sensor + 57135 Actuator
Description
The 59135 is a high temperature flange mounting reed sensor 28.57mm x
19.05mm x 6.35mm (1.125” x 0.750” x 0.259”) with a choice of normally open,
normally open high voltage, normally closed or changeover contacts. It’s case
design enables screw or adhesive mounting. It is rated for operation up to 150°C.
It is capable of switching up to 265Vac/300Vdc at 10VA. The 59135 functions
best with the matching actuator 57135-000.
Agency Approvals
Agency Agency File Number
E61760
Reed Sensors
Features
• Two-part magnetically operated
proximity sensor
• High temperature rated
• Cross-slotted mounting holes for
optimum adjustability
• Customer defined sensitivity option
• Choice of cable length and
connector
• Thermoset overmold material
• Teflon insulated wires
Benefits
• Hermetically sealed, magnetically
operated contacts continue to
operate long after optical and other
technologies fail due to
contamination
• No standby power requirement
• Operates through non-ferrous
materials such as wood, plastic or
aluminium
Applications
• Position and limit sensing
• Security system switch
• Linear actuators
• Door switch
Dimensions
Dimensions in mm (inch)
Flange Mounting Sensor > 59135
Note: The 57135 Actuator is sold separately.
Note: Contact Littelfuse for specific agency approval ratings.
Schematics Switch Type
1 and 2
3
4
Red
Red
Red
Blue
White
Red
Red
28.57
(1.125)
9.53
(.375) 19.05
(.75)
3.43 (.1
35)
6.35 (.250)
10.31
(.406)
15.88
(.625)
28.57
(1.125)
6.35
(.250) NOM.
300
(11.81) 6.35
(.250)
19.05
(.75)
9.53
(.375)
3.43
(.135)
14.28
(.562)
15.88
(.625)
6.35 (.250)
3.18x7.82 (.125x.308 LG.)
SLOT 2
3.96x8.71 (.156x.343 LG.)
3.18x7.82
(.125x.308 LG.)
SLOT 2
Actuator
Sensor
Sensors
Actuator
littelfuse.com© 2019 Littelfuse Revised: 02/08/19
Specifications are subject to change without notice.
Reed Sensors
Flange Mounting Sensor > 59135
59135 High Temperature Flange Mount Sensor + 57135 Actuator
Reed Sensors
Electrical Ratings
Contact Type Normally
Open Normally Open
High Voltage Change
Over Normally
Closed
Switch Type 1 2 3 4
Contact Rating 1VA/Watt - max. 10 10 5 5
Voltage 4Switching 2
Breakdown 3
Vdc - max.
Vac - max.
Vdc - min.
200
140
250
300
265
400
175
120
200
175
120
200
Current 4Switching 2
Carry
Adc - max.
Aac - max.
Adc - max.
0.5
0.35
1.2
0.4
0.30
1.4
0.25
0.18
1.5
0.25
0.18
1.5
Resistance 5Contact, Initial
Insulation Ω - max.
Ω - min. 0.2
1010 0.2
1010 0.2
1090.2
109
Capacitance Contact pF - typ. 0.3 0.2 0.3 0.3
Temperature Operating °C -40 to +150 -20 to +150 -40 to +150 -40 to +150
Product Characteristics
Operate Time 6ms - max. 1.0 1.0 3.0 3.0
Release Time 6ms - max. 1.0 1.0 3.0 3.0
Shock 711ms ½ sine G - max. 100 100 50 50
Vibration 750-2000 Hz G - max. 30 30 30 30
Flange Mounting Sensor > 59135
Notes:
1. Contact rating - Product of the switching voltage and current should never exceed the wattage rating. Contact Littelfuse for additional load/life information.
2. When switching inductive and/or capacitive loads, the effects of transient voltages and/or currents should be considered. Refer to Application Notes AN108A and AN107 for details.
3. Breakdown Voltage - per MIL-STD-202, Method 301.
4. Electrical Load Life Expectancy - Contact Littelfuse with voltage, current values along with type of load.
5. This resistance value is for 11.81mm wire length. Resistance changes when wire lengthens.
6. Operate (including bounce)/Release Time - per EIA/NARM RS-421-A, diode suppressed coil (Coil II).
7. Shock and Vibration - per EIA/NARM RS-421-A and MIL-STD-202.
8. For custom modifications to the wire length or size, or adding a special connector, please contact Littelfuse.
Sensitivity Options (Using 57135 Actuator)
Select Option S T U V
Switch Type Pull-In
AT Range
Activate Distance-D
mm (inch)
Average
Pull-In
AT Range
Activate Distance-D
mm (inch)
Average
Pull-In
AT Range
Activate Distance-D
mm (inch)
Average
Pull-In
AT Range
Activate Distance-D
mm (inch)
Average
1Normally Open 12-18 18.5 (.729) 17-23 17.1 (.673) 22-28 15.8 (.622) 27-33 15.1 (.595)
2High Voltage -- -- 17-23 17.1 (.673) 22-28 15.8 (.622) 27-33 15.1 (.595)
3Change Over 15-20 16.7 (.657) 20-25 14.7 (.579) 25-30 13.4 (.528) -- --
4Normally Closed 15-20 16.7 (.657) 20-25 14.7 (.579) 25-30 13.4 (.528) -- --
D
Actuator
Sensor
Note:
1. Pull-In AT Range: These AT values are the bare reed switch AT before modification.
2. The activation distance is average value on the final sensor assembly
littelfuse.com© 2019 Littelfuse Revised: 02/08/19
Specifications are subject to change without notice.
Reed Sensors
Flange Mounting Sensor > 59135
Packaging
Packaging Option Packaging Specification Quantity Quantity & Packaging Code Taping Width
Bulk Bulk 500 N/A N/A
Part Numbering System
59135 - X - X - XX - X
Series
Switch Type
1, 2, 3, or 4
Sensitivity
S, T, U, or V
Termination
A, E, or F
Cable Length
02
Reed Sensors
Flange Mounting Sensor > 59135
59135 High Temperature Flange Mount Sensor + 57135 Actuator
57135 - 000
Series
Standard Actuator
000
Note: The 57135 Actuator is sold separately.
Sensor:
Actuator:
Cable Length Specification
Cable Type: 20 AWG 19/32 FEP UL1130/UL1332
Select Option Cable Length
mm (inch)
02 300 (11.81)
Termination Specification
Termination Options
Select
Option Description
(Two-wire versions illustrated)
ATinned leads (6.4±0.76)mm
FUntinned leads (6.4±0.76)mm
EJST type XHP 2.5mm pitch
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and
test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete
Disclaimer Notice at www.littelfuse.com/disclaimier-electronics.
