59141-1-S-02-A

Reed Sensors **Datasheet** 

**59141 Miniature Flange Mount Sensor** Flange Mounting Sensor 

## **Description** 

The 59141 is a miniature flange mounting reed sensor occupying only 3.22cm² (0.500”²) board space with a choice of normally open, normally open high voltage, normally closed or changeover contacts. The case design enables mounting with M3 screw with washer at 1 Nm torque maximum or adhesive mounting. The wires exit from the left-hand side, see Drawing 2. It is also available with right-hand exit - see 59140 Series. The 59141 series is capable of switching up to 265Vac/300Vdc at 10VA. It is well suited for use in a wide range of industrial, appliances, or IoT proximity sensing applications. 

The 59141 functions best with the matching actuator 57141-000. 

## **Additional Information** 

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**Dimensions** Dimensions in mm (inch) 

Tolerances are +/- 0.25 (0.010) unless otherwise noted. 

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Drawing 1<br>Actuator  (sold separately)<br>6.00 23.00<br>(.236) (.906)<br>“| ' CI<br>3.00 14.00<br>(.118) (.551)<br>a 3.20x3.81 Typ. oa<br>Slot (.126x.150)<br>Sensor  (Two-wire version) Drawing 2<br>23.00 6.00<br>(.906) (.236)<br>(Excluding Encapsulant)<br>14.00 3.00<br>(.551) (.118)<br>t eal 3.20x3.81 Typ.<br>Table 1<br>Schematics Switch Type<br>BlackBlack 1 and 2<br>Black<br>BlueWhite 3<br>BlackBlack 4<br>7.50 (.295)<br>11.00 (.433)<br>14.00 (.551)<br>11.00 (.433) 7.50 (.295)<br>14.00 (.551)<br>**----- End of picture text -----**<br>


## **Features and Benefits** 

- Non-contact switching ■ Can operate through solution for wet & harsh non-ferrous materials (for environments example, wood, plastic or 

- ■ Housing design for optimum aluminium) adjustability ■ Helps implement efficient 

- ■ Available in select sensitivities proximity/access and energy management systems 

- Available in select sensitivities (operating distances) 

- Standard cable ■ Compact size and easy configurations; customization installation and effective options available concealment in many applications 

- Hermetically sealed, IP67 rated; UL and REACH ■ UL Recognized per UL 508 compliant and CSA C22.2 No. 14. 

- No leakage current in ‘open’ state−ideal for batterypowered IoT applications 

## **Applications** 

- Security and access control ■ Major appliances 

- ■ Factory automation ■ Small appliances ■ Process equipment ■ Proximity and limit sensing **Table 2** 

- **Agency Approvals** 

- **Agency Agency File Number** E61760 

- **Note:** Contact Littelfuse for specific agency approval ratings. 

© 2022 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 03/25/22 

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Reed Sensors **Datasheet** 

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**59141 Miniature Flange Mount Sensor** Flange Mounting Sensor 

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## **Table 3** 

## **Electrical Ratings** 

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Normally Open<br>Contact Type Normally Open Change Over Normally Closed<br>High Voltage<br>Switch Type 1 2 3 4<br>Contact Rating  [1] VA/Watt - max. 10 10 5 5<br>Switching  [2] Vdc - max. 200 300 175 175<br>Voltage  [4] Vac - max. 140 265 120 120<br>Breakdown  [3] Vdc - min. 250 400 200 200<br>Switching  [2] Adc - max. 0.5 0.4 0.25 0.25<br>Current  [4] Aac - max. 0.35 0.30 0.18 0.18<br>Carry Adc - max. 1.2 1.4 1.5 1.5<br>Contact, Initial  Ω - max. 0.2 0.2 0.2 0.2<br>Resistance  [5]<br>Insulation Ω - min. 10 [10] 10 [10] 10 [9] 10 [9]<br>Capacitance Contact pF - typ. 0.3 0.2 0.3 0.3<br>Temperature Operating °C -40 to +105 -20 to +105 -40 to +105 -40 to +105<br>Table 4<br>Product Characteristics<br>Operate Time  [6] ms - max. 1.0 1.0 3.0 3.0<br>Release Time  [6] ms - max. 1.0 1.0 3.0 3.0<br>Shock  [7] 11ms 1⁄2 sine G - max. 100 100 50 50<br>Vibration  [7] 50-2000 Hz G - max. 30 30 30 30<br>**----- End of picture text -----**<br>


## **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 300 mm 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. 

## **Table 5** 

## **Sensitivity Options (Using 57141 Actuator)** 

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Select Option S T U V<br>Pull-In  Activation  Pull-In  Activation  Pull-In  Activation  Pull-In  Activation<br>Deactivation  Deactivation  Deactivation  Deactivation<br>Switch Type AT  Distance  AT  Distance  AT  Distance  AT  Distance<br>Distance (mm) Distance (mm) Distance (mm) Distance (mm)<br>Range (mm) Range (mm) Range (mm) Range (mm)<br>1 Normally Open 12-18 9-16 10-17 17-23 7-15 9-17 22-28 6-13 8-16 27-33 5-12 8-16<br>2 High Voltage - - - 17-23 8-15 9-17 22-28 6-12 9-16 27-33 5-12 7-16<br>3 Change Over 15-20 7-14 8-17 20-25 6-13 7-17 25-30 5-12 6-16 - - -<br>4 Normally Closed 15-20 7-14 8-17 20-25 6-13 7-17 25-30 5-12 6-16 - - -<br>**----- End of picture text -----**<br>


## **Notes:** 

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. 

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© 2022 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 03/25/22 

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Reed Sensors **Datasheet** 

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**59141 Miniature Flange Mount Sensor** Flange Mounting Sensor 

## **Part Numbering System** 

## **Table 6 Cable Length Specification** 

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Sensor: 59141- X - X - XX - X<br>Series<br>Switch Type<br>  1, 2, 3, or 4<br>Sensitivity<br>S, T, U, or V<br>Cable Length<br> 02, 05<br>Termination<br>A<br>**----- End of picture text -----**<br>


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Cable Type: 24 AWG 7/32 PVC 105°C UL1430/UL1569<br>Cable Length<br>Select Option<br>mm (inch)<br>02 300 +/-10.00 (11.81 +/- 0.394)<br>05 1000+/-10.00 (39.37+/- 0.394)<br>**----- End of picture text -----**<br>


|**Table 7**<br>**Termination Specifcation**|**Table 7**<br>**Termination Specifcation**|
|---|---|
|<br>**Termination Options**||
|**Select**<br>**Option**<br>A|**Description**<br>**(Two-wire versions illustrated)**<br>Tinned leads (6.4±0.76)mm|



## **Table 8** 

## **Material Specification** 

||**Housing Material**|**Color**|**Sealing**<br>**Component**|
|---|---|---|---|
|57141 Actuator|20% GF P.B.T|Black|Epoxy|
|59141 Sensor|20% GF P.B.T|Black|Epoxy|



## **Table 9** 

## **Packaging** 

|**Cable Length**|**Packaging Option**|**Quantity**|
|---|---|---|
|02|Bulk|500|
|05|Bulk|500|



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Actuator: 57141 - 000<br>Series<br>Standard Actuator<br>000<br>**----- End of picture text -----**<br>


**Note:** The 5714 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. 

© 2022 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 03/25/22 

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