59025-1-T-02-F
Proximity Reed Sensor, 20.32 mm, Cable Mount, 500 mA, -40°C to 105°C, 59025 Series
- Manufacturer: LITTELFUSE
- Product type: Reed Proximity Sensors
- Sensing Range Max:20.32mm; Sensor Mounting:-; Operating Temperature Min:-40°C; Operating Temperature Max:105°C; Supply Current:500mA; Product Range:59025 Series; Body Length:25.4mm; Contact Con
- SVHC: No SVHC (17-Dec-2014)
- Sensor Type: Firecracker Reed Sensor
- Product Range: 59025 Series
- Supply Current: 500mA
- Sensor Mounting: Cable
- Sensing Range Max: 20.32mm
- Sensing Distance Max: 20.32mm
- Operating Temperature Max: 105°C
- Operating Temperature Min: -40°C
| Delivery and price | |
|---|---|
| Units per pack | 100 |
| Price | 1.35 € |
| Current stock | 200+ |
| Lead time | 30 days |
**Reed Sensors** Firecracker > 59025 ## 59025 Firecracker Reed Se ~~nsor + 57025 Actuator~~ ## **Description** The 59025 Firecracker Reed Sensor is a small cylindrical reed sensor, 25.4mm (L) x 6.22mm (Dia.) (1.00” x 0.245”), with a choice of normally open, normally closed or change-over contacts. It is capable of switching up to 265Vac/300Vdc at 10VA. The 59025 Firecracker Reed Sensor is available with a range of sensitivity and cable length options. It functions best with the 57025 actuator. ## **Note: The 57025 Actuator is sold separately.** ## **Features** ## **Agency Approvals** - Magnetically-operated proximity sensor - Hermetically sealed contacts - Operates through non-ferrous materials such as wood, plastic or aluminum - Customer-defined sensitivity option - Custom cable length and connector options available - RoHS compliant **==> picture [173 x 33] intentionally omitted <==** **----- Start of picture text -----**<br> ||| |---|---| |Agency|Agency File Number| |E61760| **----- End of picture text -----**<br> Note: Contact Littelfuse for specific agency approval ratings. ## **Dimensions** Dimensions in mm (inch) **==> picture [244 x 168] intentionally omitted <==** **----- Start of picture text -----**<br> ||||| |---|---|---|---| |A| |CQ)||| ||| |na|A|BS|.| |Ti|B|C| |A|B|C| |Nom.|Nom.|Nom.| |57025 Actuator|6.22 (.245)|25.40 (1.000)|--| |59025 Sensor|6.22 (.245|25.40 (1.000)|Cable Length ±| |10.00 (.393)| **----- End of picture text -----**<br> ## **Benefits** - Fits nicely into small confined spaces - Quick and easy to install - Well suited for usage in highmoisture and contaminated environments - Non-contact solution, aesthetically more appealing than push-button or lever mechanical-type switches ## **Applications** - Position and limit sensing - Security - Ideal for battery-powered applications as the contacts do not draw power when in the nonactivated state - Reed contacts last for millions of operating cycles under microcontroller logic level loads - Level sensing - Linear actuators © 2019 Littelfuse Revised: 02/08/19 Specifications are subject to change without notice. littelfuse.com **Reed Sensors** Firecracker > 59025 **==> picture [94 x 32] intentionally omitted <==** ## 59025 Firecracker Reed Se ~~nsor + 57025 Actuator~~ ## **Electrical Ratings** **==> picture [507 x 266] intentionally omitted <==** **----- Start of picture text -----**<br> Normally Open<br>Contact Type Normally Open Change Over Normally Closed<br>HighVoltage<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. Leakage current is less than 0.1mA for 60 seconds. 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. 9. Custom sensitivities and a high voltage switch are options ## **Sensitivity Options (Using 57025 Actuator)** **==> picture [507 x 109] intentionally omitted <==** **----- Start of picture text -----**<br> Select Option S T U V<br>Activate Distance−D Activate Distance−D Activate Distance−D Activate Distance−D<br>Pull-In Pull-In Pull-In Pull-In<br>Switch Type mm (inch) mm (inch) mm (inch) mm (inch)<br>AT Range AT Range AT Range AT Range<br>Average Average Average Average<br>1 Normally Open 12-18 7.9 (.311) 17-23 6.2 (.244) 22-28 4.9 (.193) 27-33 4.2 (.165)<br>2 High Voltage -- -- 17-23 6.2 (.244) 22-28 4.9 (.193) 27-33 4.2 (.165)<br>3 Change Over 15-20 7.2 (.283) 20-25 5.7 (.224) 25-30 4.7 (.185) -- --<br>4 Normally Closed 15-20 7.2 (.283) 20-25 5.7 (.224) 25-30 4.7 (.185) -- --<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. **==> picture [215 x 72] intentionally omitted <==** **----- Start of picture text -----**<br> Sensor Actuator<br>D<br>**----- End of picture text -----**<br> **==> picture [245 x 88] intentionally omitted <==** **----- Start of picture text -----**<br> Schematics Switch Type<br>Black<br>1<br>Black<br>Black<br>Blue 3<br>White<br>Black<br>4<br>Black<br>**----- End of picture text -----**<br> © 2019 Littelfuse Revised: 02/08/19 Specifications are subject to change without notice. littelfuse.com **Reed Sensors** Firecracker > 59025 **==> picture [94 x 32] intentionally omitted <==** ## 59025 Firecracker Reed Se ~~nsor + 57025 Actuator~~ ## **Cable Length Specification** ## **Part Numbering System** **==> picture [194 x 52] intentionally omitted <==** **----- Start of picture text -----**<br> Cable Type: 24 AWG 7/32 PVC 105°C UL1430/UL1569<br>Cable Length<br>Select Option<br>mm (inch)<br> 02 300 (11.81)<br>**----- End of picture text -----**<br> **==> picture [485 x 296] intentionally omitted <==** **----- Start of picture text -----**<br> Sensor: 59025 - X - X - XX - X<br>Cable Length<br>Select Option<br>mm (inch)<br> 02 300 (11.81)<br>Series<br>Switch Type<br>Termination Specification 1, 2, 3, or 4<br>Sensitivity<br> Termination Options<br>S, T, U or V<br>Select Description<br>Cable Length<br>Option (Two-wire versions illustrated)<br>02<br>A Tinned leads (6.4±0.76)mm<br>Termination<br>A, F, or E<br>F Untinned leads (6.4±0.76)mm<br>E JST type XHP 2.5mm pitch Actuator: 57025 - 000<br>Series<br>Standard Actuator<br>000<br>**----- End of picture text -----**<br> **Note: The 57025 Actuator is sold separately.** |**Packaging**||||||| |---|---|---|---|---|---|---| |**Packaging Option**|**Packaging Specification**||**Quantity**|**Quantity & Packaging Code**||**Taping Width**| |Bulk||Bulk|500||N/A|N/A| **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. © 2019 Littelfuse Revised: 02/08/19 Specifications are subject to change without notice. littelfuse.com
Updated at April 27, 2026
Founded in 1927 and headquartered in Chicago, Illinois, Littelfuse is a premier global manufacturer of circuit protection, power control, and sensing technologies. Widely recognized for pioneering the first small, fast-acting protective fuse, the company has grown into an industry leader whose highly reliable components are essential to modern industrial, transportation, and consumer electronics applications worldwide. At the core of the Littelfuse portfolio is an expansive and industry-leading range of circuit protection solutions. This encompasses a massive selection of traditional fuses, fuse holders, and resettable PTC thermistor fuses designed to safely interrupt overcurrent conditions. To defend against electrical overstress, Littelfuse also provides advanced transient voltage suppression (TVS) technologies, including thousands of specialized TVS diodes, TVS varistors, and gas discharge tubes (GDTs) that ensure robust defense against voltage spikes and environmental hazards. Beyond its foundational protection components, Littelfuse manufactures a diverse array of discrete semiconductors, sensors, and switching devices. Engineers rely on their high-performance thyristors, including TRIACs and SCRs, alongside power-efficient Schottky diodes and MOSFETs for demanding power control applications. Complemented by precision proximity sensors and highly reliable reed and solid-state relays, Littelfuse delivers the critical building blocks required for secure, efficient, and complete system design.
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