59150-1-T-02-F

Reed Sensors **Datasheet** 

**59150 Flange Mount Sensor** Flange Mounting Sensor 

## **Description** 

The 59150 is a flange mounting reed sensor 28.57mm x 19.05mm x 6.35mm (1.125” x 0.750” x 0.250”) with a choice of normally open, normally open high voltage, normally closed or changeover contacts. The wires exit from the left-hand side, see Drawing 2. It is also available with right-hand exit - see 59145 series. The 59150 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 59150 functions best with the matching actuator 57150-000. 

## **Features and Benefits** 

## **Additional Information** 

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**Dimensions** 

Dimensions in mm (inch) Tolerances are +/- 0.25 (0.010) Unless otherwise noted. (Actuator sold separately) 

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3.43 3.18 x 7.82 LG. SLOT 15.88 6.35<br>[.135] [.125 x .308 ] [.625] [.250]<br>i n \<br>; oo Actuator<br>6.35[.250] — 28.57[1.125]<br>3.43[.135] 3.18 x 7.82 LG. SLOT[.125 x .308 ] 15.88[.625] 6.35[.250]<br>6.4<br>[.252]<br>Sensor<br>6.35 a Os ● 28.57[1.125] 3.8 Max[.150]<br>[.250]<br>30<br>[1.181] 6.4<br>[.252]<br>ot J. i_<br>3.8 Max<br>Se [.150]<br>Schematics Switch Type<br>—_ BlackBlack 1 and 2<br>Black<br>(—— BlueWhite 3<br>— BlackBlack 4<br>19.05 [.750]<br>14.28 [.562]<br>9.53 [.375]<br>19.05 [.750]<br>14.28 [.562]<br>9.53 [.375] ●<br>**----- End of picture text -----**<br>


- 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 proximity/access and energy sensitivities (operating management systems distances) ■ Compact size and easy 

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

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

- 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 

## **Agency Approvals** 

|**Agency**<br>**Agency File Number**<br>E61760<br>**Note:**Contact Littelfuse for specific agency approval ratings.<br>~~~~~|
|---|



© 2025 Littelfuse, Inc. Specifications are subject to change without notice. Revised: VL 07/23/25 

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Reed Sensors **Datasheet** 

**59150 Flange Mount Sensor** Flange Mounting Sensor 

## **Electrical Ratings** 

|**Contact Type**<br>Switch Type|||**Normally Open**<br>1|**Normally Open**<br>**High Voltage**<br>2|**Change Over**<br>3|**Normally Closed**<br>4|
|---|---|---|---|---|---|---|
|Contact Rating1||VA/Watt - max.|10|10|5|5|
|Voltage4|Switching2<br>Breakdown3|Vdc - max.<br>Vac - max.<br>Vdc - min.|200<br>140<br>250|300<br>265<br>400|175<br>120<br>200|175<br>120<br>200|
|Current4|Switching2<br>Carry|Adc - max.<br>Aac - max.<br>Adc - max.|0.5<br>0.35<br>1.2|0.4<br>0.30<br>1.4|0.25<br>0.18<br>1.5|0.25<br>0.18<br>1.5|
|Resistance5|Contact, Initial<br>Insulation|Ω - max.<br>Ω - min.|0.2<br>1010|0.2<br>1010|0.2<br>109|0.2<br>109|
|Capacitance|Contact|pF - typ.|0.3|0.2|0.3|0.3|
|Temperature|Operating|°C<br>(PVC Wire)|-40 to +105|-20 to +105|-40 to +105|-40 to +105|
|||°C<br>(2-C Cable)|-20 to +80|-20 to +80|-|-20 to +80|



## **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 with lead length. 

**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 lead length or size, or adding a special connector, please contact Littelfuse. 

## **Sensitivity Options (Using 57150 Actuator)** 

|**Select Option**|**Select Option**|**S**|**S**|**S**|**T**|**T**|**T**|**U**|**U**|**U**|**V**|**V**|**V**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|**Switch Type**<br>1 Normally Open||**Pull-In**<br>**AT**<br>**Range**<br>12-18|**Activation**<br>**Distance**<br>**(mm) Min.**<br>8.2|**Activation**<br>**Deactivation**<br>**Distance**<br>**(mm) Max.**<br>22.5|**Pull-In**<br>**AT**<br>**Range**<br>17-23|**Activation**<br>**Distance**<br>**(mm) Min.**<br>7.2|**Activation**<br>**Deactivation**<br>**Distance**<br>**(mm) Max.**<br>20.5|**Pull-In**<br>**AT**<br>**Range**<br>22-28|**Activation**<br>**Distance**<br>**(mm) Min.**<br>6.4|**Activation**<br>**Deactivation**<br>**Distance**<br>**(mm) Max.**<br>19.5|**Pull-In**<br>**AT**<br>**Range**<br>27-33|**Activation**<br>**Distance**<br>**(mm) Min.**<br>5.7|**Activation**<br>**Deactivation**<br>**Distance**<br>**(mm) Max.**<br>20.5|
|2|High Voltage|-|-|-|17-23|7.2|20.5|22-28|6.3|20.5|27-33|5.7|20.5|
|3|Change Over|15-20|7.5|18.5|20-25|6.3|17|-|-|-|-|-|-|
|4|Normally Closed|15-20|7.5|18.5|20-25|6.3|17|-|-|-|-|-|-|



## **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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© 2025 Littelfuse, Inc. Specifications are subject to change without notice. Revised: VL 07/23/25 

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Reed Sensors **Datasheet** 

**59150 Flange Mount Sensor** Flange Mounting Sensor 

## **Lead Wire Length & Specification** 

|**Select Option**|**Select Option**|**Cable Length mm (inch)**|
|---|---|---|
|02|Wire|300 ± 10.00 (11.81 ± 0.394)|
|05|Wire|1000 ± 10.00 (39.37 ± 0.394)|
|12|2-C Cable|300 ± 20.00 (11.81 ± 0.394)|
|15|2-C Cable|1000 ± 20.00 (39.37 ± 0.394)|



## **Termination Specification** 

||**Termination Options**|||
|---|---|---|---|
|**Select**<br>**Option**|**Description**<br>**Stripped & Tinned Lead Detail**|||
|A|Tinned leads 6.4 ± 0.76 mm<br>(0.252 ± 0.03 in)|||



## **Material Specifications** 

|57150 Actuator|**Housing Material**<br>20% GF P.B.T|**Color**<br>Black|**Sealing Component**<br>Epoxy|
|---|---|---|---|
|59150 Sensor|20% GF P.B.T|Black|Epoxy|



## **Part Numbering System** 

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Sensor: 59150 - 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, 12, 15<br>Termination<br>A<br>**----- End of picture text -----**<br>


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Actuator: 57150 - 000<br>Series<br>Standard Actuator<br>000<br>**----- End of picture text -----**<br>


## **Packaging** 

|**Lead Length**<br>2/12|**Packaging Option**<br>Bulk|**Quantity**<br>500|
|---|---|---|
|5/15|Bulk|500|



**Note:** The 57150 Actuator is sold separately. 

## **Recommended Fastener for Sensor[1]** 

|**Series**<br>Metric|**Fastener**<br>M3|**Type**<br>Screw with washer|**Torque**<br>1.0 N-m|
|---|---|---|---|
|Standard|#4 (7/64”)|Screw with washer|8.85 in-lbf|



**Note: 1.** Sensor Housing may be secured using mechanical fasteners, M3 or #4 Screws (Torque to 1 N-m (8.9 in-lbf)), or suitable adhesive tape material. Please note that you must use a suitable washer with the mechanical fastener. Fastener material shuld be non-magnetic stainless steel or brass. 

**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. 

© 2025 Littelfuse, Inc. Specifications are subject to change without notice. Revised: VL 07/23/25 

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