# Proximity Reed Sensor, 11 mm, Flange Mount, 250 mA, -40°C to 105°C, 59145 Series

![Product image](https://novapart.co/image/farnell:5541219/)

**URL**: https://novapart.co/products/59145-4-S-02-A/proximity-reed-sensor-11-mm-flange-mount-250-ma
**SKU**: 59145-4-S-02-A
**Manufacturer**: LITTELFUSE
**Category**: Sensors & Transducers || Sensors || Proximity Sensors / Proximity Switches || Reed Proximity Sensors
**Price**: €3.8800
**Stock**: 1000+
**Lead Time**: 127 days (indicative)

## Description

Sensing Range Max:11mm; Sensor Mounting:-; Operating Temperature Min:-40°C; Operating Temperature Max:105°C; Supply Current:250mA; Product Range:59145 Series; Breakover Voltage Min:200VDC; Contac

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (17-Jan-2023) |
| Sensor Type | Reed Sensor |
| Product Range | 59145 Series |
| Supply Current | 250mA |
| Sensor Mounting | Flange |
| Sensing Range Max | 11mm |
| Sensing Distance Max | 11mm |
| Operating Temperature Max | 105°C |
| Operating Temperature Min | -40°C |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:5541219/)

**Reed Sensors** Flange Mounting Sensor > 59145 

## 59145 Flange Mount Senso ~~r + 57145 Actuator~~ 

## **Description** 

The 59145 is a 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 and the wires exit from top right hand side. It is also available with left hand exit - see 59150 Series. It is capable of switching up to 265Vac/300Vdc at 10VA. The 59145 functions best with the matching actuator 57145-000. 

## **Note: The 57145 Actuator is sold separately.** 

## **Features** 

## **Agency Approvals** 

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Agency Agency File Number<br>**----- End of picture text -----**<br>


|E61760<br>~~a~~|
|---|



## Note: Contact Littelfuse for specific agency approval ratings. 

   - Customer defined sensitivity option 

- Two-part magnetically operated proximity sensor 

- Choice of cable and connector 

## **Benefits** 

   - No standby power requirement 

- Hermetically sealed, magnetically No standby power requirement operated contacts continue to • Operates through non-ferrous operate long after optical and other materials such as wood, plastic or technologies fail due to aluminium contamination • Simple installation and adjustment 

   - Simple installation and adjustment 

## **Dimensions** 

Dimensions in mm (inch) 

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**----- Start of picture text -----**<br>
28.57<br>(1.125)<br>9.53<br>14.28 Tae (.375) ;<br>(.562) 19.05<br>(.75)<br>15.88 3.43<br>(.625) 3.18x7.82 (.135)<br>(.125x.308 LG.)<br>SLOT 2 6.35<br>Note: 59145 shown. 59150 leads exit opposite. 1 PE| 1 (.259)<br>300<br>28.57 (11.81)<br>(1.125)<br>6.35 (.250) NOM.<br>——<br>9.53<br>14.28 (.375)<br>(.562) 19.05<br>| a (.75)<br>(.125x.308 LG.) e 3.18x7.82 (.625)15.88 o (.250)6.35 4H L (.135)3.43<br>SLOT 2<br>6.35<br>(.259)<br>Schematics Switch Type<br>Black<br>1 and 2<br>co Black<br>Black<br>—— BlueWhite 3<br>Black<br>4<br>Black<br>ee<br>© 2015 Littelfuse  Revised: 10/29/15<br>Specifications are subject to change without notice.<br>**----- End of picture text -----**<br>


## **Applications** 

- Position and limit sensing 

- Security system switch 

- Linear actuators 

- Door switch 

littelfuse.com 

**Reed Sensors** Flange Mounting Sensor > 59145 

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## 59145 Flange Mount Senso ~~r + 57145 Actuator~~ 

## **Electrical Ratings** 

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Normally  Normally Open  Change Normally<br>Contact Type<br>Open High Voltage Over Closed<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>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 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 57145 Actuator)** 

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**----- Start of picture text -----**<br>
Select Option S T U V<br>Activate Distance  Activate Distance  Activate Distance  Activate Distance<br>Pull-In AT  Pull-In AT  Pull-In AT  Pull-In AT<br>Switch Type  mm (inch) mm (inch) mm (inch) mm (inch)<br>Range Range Range Range<br>Average Average Average Average<br>1 Normally Open 12-18 13.5 (.531) 17-23 11.2 (.441) 22-28 9.8 (.385) 27-33 9.0 (.357)<br>2 High Voltage -- -- 17-23 11.2 (.441) 22-28 9.8 (.385) 27-33 9.0 (.357)<br>3 Change Over 15-20 11.0 (.433) 20-25 9.2 (.362) 25-30 8.5 (.335) -- --<br>4 Normally Closed 15-20 11.0 (.433) 20-25 9.2 (.362) 25-30 8.5 (.335) -- --<br>**----- End of picture text -----**<br>


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. 

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D<br>**----- End of picture text -----**<br>


© 2015 Littelfuse Revised: 10/29/15 Specifications are subject to change without notice. 

littelfuse.com 

**Reed Sensors** 

Flange Mounting Sensor > 59145 

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## 59145 Flange Mount Senso ~~r + 57145 Actuator~~ 

## **Cable Length Specification** 

|**Cable Type: 24 AWG 7/32 PVC 105°C UL1430/UL1569**|**Cable Type: 24 AWG 7/32 PVC 105°C UL1430/UL1569**|
|---|---|
|**Select Option**|**Cable Length**<br>**mm (inch)**|
|02|300 (11.81)|



## **Termination Specification** 

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  Termination Options<br>Select  Description<br>Option (Two-wire versions illustrated)<br>A Tinned leads (6.4±0.76)mm<br>F Untinned leads (6.4±0.76)mm<br>E JST type XHP 2.5mm pitch<br>**----- End of picture text -----**<br>


## **Part Numbering System** 

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Sensor: 59145 - 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<br>Termination<br>A or F, or E<br>**----- End of picture text -----**<br>


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Actuator: 57145 - 000<br>Series<br>Standard Actuator<br>000<br>**----- End of picture text -----**<br>


**Note: The 57145 Actuator is sold separately.** 

|**Packaging**|||||||
|---|---|---|---|---|---|---|
|**Packaging Option**|**Packaging Specification**||**Quantity**|**Quantity & Packaging Code**||**Taping Width**|
|Bulk||Bulk|500||N/A|N/A|



© 2015 Littelfuse Revised: 10/29/15 Specifications are subject to change without notice. 

littelfuse.com 



## Links

- [View this product on Novapart](https://novapart.co/products/59145-4-S-02-A/proximity-reed-sensor-11-mm-flange-mount-250-ma)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/hamlin/59145-4-s-02-a/reed-sensor-flange-nc/dp/5541219)
---

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