59020-1-S-02-A

Reed Sensor **Datasheet** 

## **59020** Miniature Cylindrical Reed Sensor + 57020 Actuator 

## **Description** 

The 59020 Reed Sensor is a miniature cylindrical reed sensor 15.24mm x 5.10mm (0.600” x 0.201”) with a normally open contact. It is capable of switching up to 120 Vac/170 Vdc at 10 VA. The 59020 Reed Sensor is available with a range of sensitivity and cable length options. It is well suited for use in a wide range of industrial, appliances, or IoT proximity sensing applications. It functions best with the 57020-000 actuator. 

**Note:** The 57020 Actuator is sold separately. 

## **Features and Benefits** 

## **Additional Information** 

**Resources Accessories** 

**Samples** 

   - Hermetically sealed, IP67 rated; REACH compliant 

- Non-contact switching solution for wet & harsh environments 

   - Can operate through non-ferrous materials (for example, wood, plastic, or aluminum) 

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

- Helps implement efficient ■ Available in select sensitivities proximity/access and energy (operating distances) management systems 

   - Standard cable configurations; customization options available 

- Compact size and easy installation and effective concealment in many applications 

## **Applications** 

- Security and access control 

- Factory automation 

- Process equipment 

- Major appliances 

- Small appliances 

- Proximity and limit sensing 

© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 11/12/21 

**1** 

Reed Sensor **Datasheet** 

## **59020** Miniature Cylindrical Reed Sensor + 57020 Actuator 

**Dimensions** (Dimensions in mm (inch)) 

## **Package Dimensions** (Dimensions in mm[in]) 

|**Product**<br>57020 Actuator|**A Nom. Mm[in]**<br>5.10 +/- 0.25<br>[0.201 +/- 0.010]|**B Nom. Mm[in]**<br>15.24 +/- 0.25<br>[0.600 +/- 0.010]|
|---|---|---|
|59020 Sensor|5.10 +/- 0.25<br>[0.201 +/- 0.010]|15.24 +/- 0.25<br>[0.600 +/- 0.010]|



## **Material Specifications** 

|**Product**<br>57020 Actuator|**Housing Material**<br>30% GF PBT|**Color**<br>Black|**Sealing Component**<br>Epoxy|
|---|---|---|---|
|59020 Sensor|30% GF PBT|Black|Epoxy|



## **Electrical Ratings** 

|**Contact Type**<br>Switch Type|**Contact Type**<br>Switch Type|**Contact Type**<br>Switch Type|**Normally Open**<br>1|
|---|---|---|---|
|Contact Rating1||VA/Watt - max.|10|
|Voltage4|Switching2<br>Breakdown3|Vdc - max.<br>Vac - max.<br>Vdc - min.|170<br>120<br>175|
|Current4|Switching2<br>Carry|Adc - max.<br>Aac - max.<br>Adc - max.|0.25<br>0.18<br>0.5|
|Resistance5|Contact, Initial<br>Insulation|Ω - max.<br>Ω - min.|0.2<br>109|
|Capacitance|Contact|pF - typ.|0.3|
|Temperature|Operating|°C|-40 to +105|



## **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. 

   4. Electrical Load Life Expectancy - Contact Littelfuse with voltage, and 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  diode suppressed coil (Coil ). 

   7. Shock and Vibration - per EIA/NARM RS-421-A and MIL-STD-202. 

3. Breakdown Voltage - per MIL-STD-202, Method 301. Leakage current is less than 0.1mA for 60 seconds. 

© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 11/12/21 

**2** 

Reed Sensor **Datasheet** 

**59020** Miniature Cylindrical Reed Sensor + 57020 Actuator 

## **Sensitivity Options (Using 57020 Actuator)** 

**==> picture [486 x 70] intentionally omitted <==**

**----- Start of picture text -----**<br>
|||||||||||
|---|---|---|---|---|---|---|---|---|---|
|Select Option|S|T|U|
|Activation|Deactivation|Activation|Deactivation|Activation|Deactivation|
|Pull-In AT|Pull-In|Pull-In|
|Switch Type|Distance|Distance|Distance|Distance|Distance|Distance|
|Range|AT Range|AT Range|
|(mm)|(mm)|(mm)|(mm)|(mm)|(mm)|
|Normally|
|1|6-10|4-11|5-12|10-15|3-10|4-11|15-20|2-9|3-10|
|Open|

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


## **Notes:** 

1. Measurements are from 57020 Nominal Actuator 

2. Pull-In AT Range: These AT values are the bare reed switch AT before modification 

**==> picture [441 x 375] intentionally omitted <==**

**----- Start of picture text -----**<br>
3. Not recommended to be mounted within/near ferrous materials if doing so these activatin & deactivation distances will decrease significantly<br>Sensor Actuator<br>= [|]<br>D<br>—| --— cs:<br>Cable Length Specification Part Numbering System<br>Cable Type: 24 AWG 7/32 PVC 105°C UL1430/UL1569<br>Sensor: 59020 - 1 - X - XX - X<br>Options Cable Length mm [inch]<br>02 300 +/- 10.00 [11.81 +/- 0.394]<br>Series<br>05 1000 +/- 10.00 [39.37 +/- 0.394]<br>Switch Type<br>Termination Specification Sensitivity<br>  Termination Options S, T, U<br>Select Option Description (Two-wire versions illustrated) Cable Length<br>A Tinned leads (6.4±0.76) mm 02, 05<br>—-_ Termination = |i<br>A<br>Actuator: 57020 - 000<br>Series<br>Standard Actuator<br>— I<br>000<br>Note:  The 57020 Actuator is sold separately.<br>**----- End of picture text -----**<br>


## **Packaging** 

**==> picture [452 x 25] intentionally omitted <==**

**----- Start of picture text -----**<br>
||||||
|---|---|---|---|---|
|Packaging Option|Packaging Specification|Quantity|Quantity & Packaging Code|Taping Width|
|Bulk|Bulk|500|N/A|N/A|

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


**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 http://www.littelfuse.com/disclaimer-electronics. 

© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 11/12/21 

**3**