Magnetic Sensors and Reed Switches

Reed Switches

Back

Reed Switches

59166

Datasheet

A miniature overmolded reed sensor 16.00mm x 2.40mm x 2.40mm (0.630" x 0.094" x 0.094") with straight or gull-wing leads. Provided with normally open contacts. Capable of switching up to

200Vdc at 10W. Its package contains molded stand-offs to allow board washing. Available with a range of sensitivity options, including customer-defined sensitivity. Well suited for position and limit sensing, security, and door/window alarm systems. Functions best with the 57045 actuator.

Note: The 57045 actuator is sold separately.

Features:

Two-part, magnetically-operated proximity sensor
Gull-wing or straight lead options
Molded stand-off to allow board washing
Customer-defined sensitivity
Suitable for reflow soldering

Benefits:

Well suited for usage in high-moisture and contaminated environments
Reed contacts last for millions of operating cycles under micro-controller voltage and current logic-level loads
Suitable for pick-and-place assembly

Applications:

Position and limit switching
Security
Door switch

Electrical Characteristics
- Catalog # 59166-1-S-00-C
- Switching Power (W) 10
- Switching Voltage (V DC) 200
- Switching Current (A DC) 0.5
- Breakdown Voltage (V DC) 250
- Max Contact Resistance (Ω) 0.2
- Magnetic Sensitivity (AT) 10 to 15
- Body Length (mm) 16
- Overall Length (mm) 19.51
- Switch Type A: SPST-NO
- Check Stock Order Sample
- Catalog # 59166-1-S-00-D
- Switching Power (W) 10
- Switching Voltage (V DC) 200
- Switching Current (A DC) 0.5
- Breakdown Voltage (V DC) 250
- Max Contact Resistance (Ω) 0.2
- Magnetic Sensitivity (AT) 10 to 15
- Body Length (mm) 16
- Overall Length (mm) 19.51
- Switch Type A: SPST-NO
- Check Stock Order Sample
- Catalog # 59166-1-T-00-C
- Switching Power (W) 10
- Switching Voltage (V DC) 200
- Switching Current (A DC) 0.5
- Breakdown Voltage (V DC) 250
- Max Contact Resistance (Ω) 0.2
- Magnetic Sensitivity (AT) 15 to 20
- Body Length (mm) 16
- Overall Length (mm) 19.51
- Switch Type A: SPST-NO
- Check Stock Order Sample
- Catalog # 59166-1-T-00-D
- Switching Power (W) 10
- Switching Voltage (V DC) 200
- Switching Current (A DC) 0.5
- Breakdown Voltage (V DC) 250
- Max Contact Resistance (Ω) 0.2
- Magnetic Sensitivity (AT) 15 to 20
- Body Length (mm) 16
- Overall Length (mm) 19.51
- Switch Type A: SPST-NO
- Check Stock Order Sample
- Catalog # 59166-1-U-00-C
- Switching Power (W) 10
- Switching Voltage (V DC) 200
- Switching Current (A DC) 0.5
- Breakdown Voltage (V DC) 250
- Max Contact Resistance (Ω) 0.2
- Magnetic Sensitivity (AT) 20 to 25
- Body Length (mm) 16
- Overall Length (mm) 19.51
- Switch Type A: SPST-NO
- Check Stock
- Catalog # 59166-1-U-00-D
- Switching Power (W) 10
- Switching Voltage (V DC) 200
- Switching Current (A DC) 0.5
- Breakdown Voltage (V DC) 250
- Max Contact Resistance (Ω) 0.2
- Magnetic Sensitivity (AT) 20 to 25
- Body Length (mm) 16
- Overall Length (mm) 19.51
- Switch Type A: SPST-NO
- Check Stock Order Sample

Technical Resources
- 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.
- 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.
- Rice Cooker Lid Lock Application Note
  The position sensing lid lock ensures that the lid is securely locked in place.
- Sensors Products Catalog
  This guide provides an introduction to magnetic sensing and options for value-added custom design packages.
- Reed Switch Selection Guide
  A quick reference guide to selecting reed switches for electronic applications
- Ampere turn versus mT and Gauss Application Note
  What is the relationship between AT (Ampere*turn) and Tesla or Gauss? What magnet strength will activate a 15 AT reed switch at 5 mm?
- 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.
- Catalog Glossary Reed Switch Terms Application Note
  Reed Switch Terms Glossary
- Extreme Temperature Reed Switch Operation Application Note
  Littelfuse reed switches are normally specified to operate in a temperature range of -40 �C to +125 �C. T
- Handling of Reed Sensors Relays And Switches Application Note
  When used within their capabilities Littelfuse reed sensors reed relays and reed switches provide many years of robust performance
- 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.)
- Measuring Reed Switch Sensitivity and Contact Resistance Application Note
  The purpose of this application note is to document the preferred method of reading the sensitivity and contact resistance of Littelfuse reed switches.
- Modifying Reed Switches Application Note
  When cutting and forming reed switch leads it is important to use the correct support and cutting tools to avoid causing damage to the glass-to-metal hermetic seals.
- 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.
- 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
- Soldering Temperatures Application Note
  This application note applies to all of Littelfuse�s products that are normally soldered to printed circuit boards (PCBs) including all reed switches.
- Storage of Littelfuse Sensor Parts Application Note
  The data sheets for Littelfuse parts show temperature ranges for storage. However long term exposure to extreme temperatures in the specified storage temperature range may degrade solderability of terminals.
- 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).