Datasheet

Reed Sensors
Flange Mounting Sensor > 59125
59125 Pinned Flange Sensor + 57125 Actuator
Description
The 59125 is a flange mounting reed sensor 28.57mm x 19.05mm x 6.35mm
(1.125” x 0.750” x 0.259”) with integral terminal pins with a choice of normally
open, normally open high voltage or normally closed contacts. It’s case design
enables screw or adhesive mounting. It is capable of switching up to
265Vac/300Vdc at 10VA. The 59125 functions best with the matching
actuator 57125-000.
Note: The 57125 Actuator is sold separately.
Features
• Two-part magnetically operated
proximity sensor
• Moulded in terminal pins accept
push on connector or wire wrap
Agency Approvals
Agency
• Case design allows screw down or
adhesive mounting
• Customer defined sensitivity option
Agency File Number
Benefits
E61760
• Hermetically sealed, magnetically
operated contacts continue to
operate long after optical and other
technologies fail due to
contamination
Note: Contact Littelfuse for specific agency approval ratings.
Dimensions
• No standby power requirement
• Operates through non-ferrous
materials such as wood, plastic or
aluminium
Dimensions in mm (inch)
28.57
(1.125)
6.35
(.259)
9.53
(.375)
14.28
(.562)
15.88
(.625)
Applications
• Position and limit sensing
• Security system switch
• Linear actuators
• Industrial process control
19.05
(.75)
3.43
(.135)
3.18x7.82
(.125x.308 LG.)
SLOT 2
4.05
(.160)
28.57
(1.125)
6.10 (.240)
2.54 (.100)
14.28
(.562)
SQ. PINS x 2
0.64
(.025)
2.54 (.100)
15.88
(.625)
3.18x7.82
(.125x.308 LG.)
SLOT 2
6.35 (.250)
© 2015 Littelfuse
Revised: 10/29/15
Specifications are subject to change without notice.
9.53
(.375)
6.35
(.250)
19.05
(.75)
3.43
(.135)
littelfuse.com
Reed Sensors
Flange Mounting Sensor > 59125
59125 Pinned Flange Sensor + 57125 Actuator
Electrical Ratings
Normally
Open
Contact Type
Switch Type
Normally Open
High Voltage
Normally
Closed
1
2
4
VA/Watt - max.
10
10
5
Vdc - max.
Vac - max.
Vdc - min.
200
140
250
300
265
400
175
120
200
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
Contact, 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
Contact Rating
Voltage
4
Current
4
1
Switching
2
Breakdown
Switching
Resistance
5
3
2
Product Characteristics
Operate Time
6
ms - max.
1.0
1.0
3.0
Release Time
6
ms - max.
1.0
1.0
3.0
11ms 1⁄2 sine
G - max.
100
100
50
50-2000 Hz
G - max.
30
30
30
Shock
7
Vibration
7
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 57125 Actuator)
Select Option
Switch Type
S
T
U
Distance Pull-In AT Activate Distance
Pull-In AT Activate
mm (inch)
mm (inch)
Range
Range
Average
Average
V
Pull-In AT
Range
Activate Distance
mm (inch)
Average
Pull-In AT
Range
Activate Distance
mm (inch)
Average
1
Normally Open
12-18
12.5 (.492
17-23
11.3 (.445)
22-28
9.8 (.385)
27-33
8.9 (.350)
2
High Voltage
--
--
17-23
11.3 (.445)
22-28
9.8 (.385)
27-33
8.9 (.350)
4
Normally Closed
15-20
8.0 (.315)
20-25
7.2 (.283)
25-30
5.9 (.233)
--
--
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
© 2015 Littelfuse
Revised: 10/29/15
Specifications are subject to change without notice.
D
littelfuse.com
Reed Sensors
Flange Mounting Sensor > 59125
59125 Pinned Flange Sensor + 57125 Actuator
Part Numbering System
Sensor:
59125 - X - X - 00 - 0
Actuator: 57125 - 000
Series
Series
Switch Type
1, 2, or 4
Standard Actuator
000
Sensitivity
S, T, U, or V
Note: The 57125 Actuator is sold separately.
Packaging
Packaging Option
Packaging Specification
Bulk
© 2015 Littelfuse
Revised: 10/29/15
Specifications are subject to change without notice.
Bulk
Quantity
500
Quantity & Packaging Code
N/A
Taping Width
N/A
littelfuse.com