littelfuse.com© 2017 Littelfuse Revised: 12/18/17
Specifications are subject to change without notice.
59105 Terminal Flange Sensor + 57105 Actuator
Description
The 59105 is a flange mounting reed sensor 28.57mm x 19.05mm x 6.35mm
(1.125” x 0.750” x 0.250”) with an integral two-pin connector. It has choices of
normally open, normally open high voltage or normally closed contacts and it’s
case design enables screw or adhesive mounting. It is capable of switching up to
265Vac/300Vdc at 10VA. The 59105 functions best with the matching
actuator 57105-000.
Agency Approvals
Agency Agency File Number
E61760
Reed Sensors
Features
• Two-part magnetically operated
proximity sensor
• Shrouded terminals accept Molex
SL series connector
• Case design allows screw down or
adhesive mounting
• Customer-defined sensitvity option
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
• Industrial process control
Dimensions
Dimensions in mm (inch)
Flange Mounting Sensor > 59105
28.57
(1.125)
Actuator
Sensor
1
4.28
(.560)
19.05
(.75)
9.53
(.375)
6.35
(.250)
3.43
(.135)
15.88
(.625)
3.18x7..82
(.125x.308 LG)
SLOT 2
28.57
(1.125)
11.6
(.457)
7. 3
(.287)
2.54 (.100)
2.54 (.100)
1
4.28
(.560)
19.05
(.75)
9.53
(.375)
6.35
(.250)
3.43
(.135)
15.88
(.625)
3.18x7..82
(.125x.308 LG)
SLOT 2
Note: The 57105 Actuator is sold separately.
Note: Contact Littelfuse for specific agency approval ratings.
Schematics Switch Type
1 and 2
3
4
Black
Black
Black
Blue
White
Black
Black
Actuator
Actuator
Sensor
Sensor
littelfuse.com© 2017 Littelfuse Revised: 12/18/17
Specifications are subject to change without notice.
59105 Terminal Flange Sensor + 57105 Actuator
Reed Sensors
Electrical Ratings
Contact Type Normally
Open
Normally Open
High Voltage
Normally
Closed
Switch Type 1 2 4
Contact Rating 1VA/Watt - max. 10 10 5
Voltage 4
Switching 2
Breakdown 3
Vdc - max.
Vac - max.
Vdc - min.
200
140
250
300
265
400
175
120
200
Current 4
Switching 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
Resistance 5Contact, Initial
Insulation
Ω - max.
Ω - min.
0.2
1010
0.2
1010
0.2
109
Capacitance Contact pF - typ. 0.3 0.2 0.3
Temperature Operating °C -40 to +105 -20 to +105 -40 to +105
Product Characteristics
Operate Time 6ms - max. 1.0 1.0 3.0
Release Time 6ms - max. 1.0 1.0 3.0
Shock 711ms ½ sine G - max. 100 100 50
Vibration 750-2000 Hz G - max. 30 30 30
Flange Mounting Sensor > 59105
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 57105 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 12.5 (.492) 17-23 11.3 (.445) 22-28 9.8 (.385) 27-33 8.9 (.350)
2High Voltage -- -- 17-23 11.3 (.445) 22-28 9.8 (.385) 27-33 8.9 (.350)
4Normally Closed 15-20 8.0 (.315) 20-25 7.2 (.283) 25-30 5.9 (.233) -- --
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© 2017 Littelfuse Revised: 12/18/17
Specifications are subject to change without notice.
Packaging
Packaging Option Packaging Specification Quantity Quantity & Packaging Code Taping Width
Bulk Bulk 500 N/A N/A
Part Numbering System
59105 - X - X - 00 - 0Sensor: Actuator:
Series
Switch Type
1, 2, or 4
Sensitivity
S, T, U, or V
Reed Sensors
Flange Mounting Sensor > 59105
59105 Terminal Flange Sensor + 57105 Actuator
57105 - 000
Series
Standard Actuator
000
Note: The 57105 Actuator is sold separately.
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.
