59025 Series - Cylindrical Reed Sensor

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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

The 59025 Reed Sensor is a small cylindrical reed sensor, 25.4 mm (L) x 6.22 mm (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 265 Vac/300 Vdc at 10 VA. The 59025 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 57025 actuator.

Features & Benefits:

  • Non-contact switching solution for wet & harsh environments
  • No leakage current in ‘open’ state−ideal for battery-powered IoT applications 
  • Helps implement efficient proximity/access and energy management systems
  • Compact size and easy installation and effective concealment in many applications
  • Hermetically sealed, IP67 rated; UL and REACH compliant 
  • Can operate through non-ferrous materials (for example, wood, plastic, or aluminum)
  • Available in select sensitivities (operating distances)
  • Standard cable configurations; customization options available 
  • UL Recognized per UL 508 and CSA C22.2 No. 14.

Applications:

  • Security and access control
  • Factory automation
  • Process Equipment
  • Major appliances
  • Small appliances
  • Proximity and limit sensing
     

Access specifications, certifications, check availability and order parts below

Catalog #Switching Power (W)Switching Voltage (V DC)Switching Current (A DC)Switching Voltage (V AC)Switching Current (A AC)Breakdown Voltage (V DC)Max Contact Resistance (Ω)Magnetic Sensitivity (AT)Nominal Activate Distance (mm)Switch TypeMin Operating Temp (°C)Max Operating Temp (°C)Max Operate Time (ms)Max Release Time (ms)StockSamplesCompare
59025-1-S102000.51400.352500.212 to 187.9A:SPST-NO-4010511CheckOrder
59025-1-T102000.51400.352500.217 to 236.2A:SPST-NO-4010511CheckOrder
59025-1-U102000.51400.352500.222 to 284.9A:SPST-NO-4010511CheckOrder
59025-1-V102000.51400.352500.227 to 334.2A:SPST-NO-4010511CheckOrder
59025-2-S103000.41400.34000.212 to 187.9A:SPST-NO-2010511CheckOrder
59025-2-T103000.41400.34000.217 to 236.2A:SPST-NO-2010511CheckOrder
59025-2-U103000.41400.34000.222 to 284.9A:SPST-NO-2010511CheckOrder
59025-2-V103000.41400.34000.227 to 334.2A:SPST-NO-2010511CheckOrder
59025-3-S51750.251200.182000.215 to 207.2C: SPDT-CO-4010533CheckOrder
59025-3-T51750.251200.182000.220 to 255.7C: SPDT-CO-4010533CheckOrder
59025-3-U51750.251200.182000.225 to 304.7C: SPDT-CO-4010533CheckOrder
59025-4-S51750.251200.182000.215 to 207.2B:SPST-NC-4010533CheckOrder
59025-4-T51750.251200.182000.220 to 255.7B:SPST-NC-4010533CheckOrder
59025-4-U51750.251200.182000.225 to 304.7B:SPST-NC-4010533CheckOrder

pdf icon Sensing Products Selection Guide

This guide provides an introduction to magnetic sensing and options for value-added custom design packages.

pdf icon Flow Sensing in Tankless Water Heaters Application Note

Reed switches and sensors are highly effective solutions for flow sensing applications that can be used for detecting the presence of fluid flow in a system or even measure the rate of fluid flow.

pdf icon Position and Level Sensing in Washing Machines

A most integral appliance in any home is a washing machine. Washing machines have helped made the chore of cleaning clothes quite effortless.

pdf icon Rice Cooker Lid Lock Application Note

The position sensing lid lock ensures that the lid is securely locked in place.

pdf icon Capacitive Loads Application Note

When there is significant capacitance in a reed sensor reed relay or reed switch circuit the peak current and energy switched by the reed contacts should be considered.

pdf icon Inductive Load Arc Suppression Application Note

When a reed switch or reed sensor is used to control an inductive device (relay coil solenoid transformer small motor etc.)

pdf icon Reed Switch and Reed Sensor Activation Application Note

Although a reed switch can be activated by placing it inside an electrical coil many reed switches and reed sensors are used for proximity sensing and are activated by a magnet.

pdf icon Reed Switch Extended Shock Capabilities Application Note

The maximum shock specifications in the Littelfuse catalog are very conservative for most switches smaller than the DRxxxx type. T

pdf icon Vibration Testing and Precautions Application Note

Littelfuse tests sinusoidal vibration according to Mil. Std. 202G Method 204D Test Condition G (10 � 2000 Hz frequency sweep at 30 G or 0.06 inch double amplitude whichever is less).

To request product environmental information, please complete the Product Environmental Information Request Form.