Reed Relays and
Electronics India Limited
Manufacturer of Reed Switches, Reed Sensors and Reed-based products
Reed Relays and Electronics India Limited Incorporated in 1971

R5 Ultra-Miniature SMD Reed Sensor

These SMD Ultra-Miniature Reed Sensors are designed for signal switching applications and have a size advantage over the standard size SMD reed sensor. As they are molded with pre-flattened leads, no shock is transferred into the device when SMD formation takes place. Various actuating distances are available depending on the magnet and the AT band used. These Ultra-Miniature Reed Sensors are tested 100% for Operate AT, Release AT, Static Contact Resistance and Variable Contact Resistance before packing. Being an Omni-polar device, this sensor can be actuated with either a north pole or a south pole or both. Choosing the right AT band, magnet strength, and operating axis, will restrict the number of operates and releases to one. All dimensions are in mm.

  • R5-J SMD Reed Sensor drawing
  • Drawing of R5J PCB Layout
  • R5-J SMD Reed Sensor Carrier Tape Drawing
  • R5-S SMD Reed Sensor Drawing
  • Drawing of R5S PCB Layout
  • R5-S SMD Reed Sensor Carrier Tape Drawing


Normally Open contact. Two sensitivity bands. Two Lead Formations. Packed in Tapes for automatic assembly.



Omni-polar. Does not require power for operation. Sputtered Contact. RoHS Compliant. Not ESD Sensitive.

Actuation Distances for R5 Ultra-miniature Reed Sensors

R5S magnet actuation Operate and release distances for the R5 ultra-miniature reed sensor in the two lead formations and two standard AT bands when actuated Continue reading ->

Jun 4, 2021

Cylindrical and Rectangular Magnets

Standard magnets-RRE Drawing of Cylindrical MagnetsDrawing of Rectangular Bar Magnets starFeaturesNdFeB High Energy. Nickel coated. Energized Continue reading ->

Nov 18, 2020


Contact FormA
Contact Rating (max)W/VA5.0
Switching Current (max)A0.35
Carry Current (max)A0.5
DC Switching Voltage (max)VDC100
Breakdown Voltage (min)VDC150
Contact Resistance (max)200
Insulation Resistance (min)Ω109
Capacitance (typ)pF0.2


Operate Time (max)ms0.35
Bounce Time (max)ms0.30
Release Time (max)ms0.10
Resonance Frequency (typ)Hz<2000
Operating Frequency (max)Hz500
Operating Temperature Range°C-40 to +140
Shock Resistance (½Sin wave for 11ms)G30
Vibration Resistance (10-2000 Hz)G20

Ordering Code

R5-(Formation Code)-(Operate Band Code)

Formation CodeLead Type
SGull-wing SMD
Operate Band Code

Examples: R5-S-1 denotes Gull-wing SMD version in 7-12 Operate Band (AT). R5-J-2 denotes J-Lead Formed SMD Lead version in 12-17 Operate Band (AT).

Other Special Configurations: Lower Static Contact Resistance, Dynamic Contact Resistance Limit, Higher Insulation Resistance, Special Release Limits, Gold plated leads.

Usage Notes

Here are some of the recommended usage notes to ensure maximum durability of this R5 Ultra-Miniature Reed Sensor. The complete usage notes are available here.

Ampere Turn Selection for your Application

Ampere Turn Selection Selecting the appropriate Ampere Turn (AT) or magnetic sensitivity for a Reed Switch, Reed Sensor, or Magnet Sensor is crucial in any Continue reading ->

Jun 16, 2024

Handling of Reed Switches

Dropping Reed switch Handling of Reed Switches Reed Switches, Reed Sensors, and Magnet Sensors are delicate devices prone to developing micro cracks in Continue reading ->

Jun 17, 2024

Reflow Soldering of Reed Switches

Drawing of SMD reflow soldering curve Reflow Soldering is a sophisticated process used in electronics manufacturing to solder components onto printed circuit boards (PCBs). It Continue reading ->

Jun 17, 2024

Soldering of Reed Switches

Soldered Reed switch Soldering Reed Switches and Reed Sensors requires meticulous handling to safeguard these delicate components against inadvertent damage. Continue reading ->

Jun 17, 2024

Ferro-magnetic Parts

Ferro-magnetic parts Reed Switches utilize a nickel-iron alloy, sputter coated with additional Ruthenium to render it ferromagnetic while maintaining low Continue reading ->

Jun 17, 2024

Protection Circuits for Reed Switches

Inductive Load Protection Circuit It is assumed that the ideal reed switch load is a Resistive Load, but it is almost impossible to reduce any load to purely resistive. Continue reading ->

Jun 17, 2024


Although we can never restrict the use of a reed sensor to a particular field of usage, the following is a list of some of the applications that the R5 Ultra-Miniature Reed Sensor is known to perform well in.

Defibrillators Use Reed switches to Switch High Voltages

Defibrillator Defibrillator Defibrillators are equipments that deliver an electric current to the heart, when cardio-pulmonary resuscitation, or CPR Continue reading ->

Mar 18, 2024

Ignition detection in Keys using Reed Sensors

key ignition Automobile Key In ignition detection in automobile, two primary types reign supreme: the traditional manual key and the more modern Continue reading ->

Jun 10, 2024

Feeding tubes are Used with a Reed Sensor for Psotion Detection

Pediatric feeding tube Pediatric Feeding Tube Feeding tubes are used by pediatrics in nursing homes and hospitals on babies and young children, in an Continue reading ->

Mar 18, 2024

Electric Vehicle Chargers use Reed Sensors

E-car charger Electric Car Charging Station Electric vehicles (EVs) are engineered to deliver an impressive range of 300-450 kilo-meters on a single Continue reading ->

Jun 11, 2024

Canal Hearing Aids Use Reed Sensors for Volume Level Cycling

Reed sensors in canal hearing aids In-canal Hearing Aid As widely known, Hearing Aids are devices designed to improve hearing by making sound audible to a person with Continue reading ->

Mar 18, 2024

Radio Controlled Airplanes and Gliders Use Reed Sensors

Reed switches in model airplanes Radio controlled Airplanes Radio controlled airplanes, including gliders and helicopters, are available in a wide range of sizes and Continue reading ->

Jun 19, 2024

Fluid Level sensing on Ships and Yachts

Reed switches in fluid level sensing Level Sensing In maritime vessels like ships and yachts, meticulous fluid level sensing of fuel, sewage, and portable water is Continue reading ->

Jun 14, 2024

Reed switches in Domestic Coffee Machines

Reed switches in Domestic coffee machine Domestic Coffee Machine Coffee Machines brew coffee when the user adds water, coffee powder and milk. Intelligent coffee machines such Continue reading ->

Mar 1, 2024

Reed sensors in weather proof electronics

Water proof reed switch IP67 certified Smart phone The IP67 Code, also known as the International Protection Marking establishes a set of pertaining to the Continue reading ->

Mar 8, 2024

A Spirometer Use Reed Sensors to Assess Lung Function

Spirometer Spirometer for Lung Function Testing A Lung function test or Pulmonary Function test, PFT for short, is a system to evaluate the Continue reading ->

Mar 18, 2024

Vagus Nerve Stimulators Use Reed Sensors for Activation

Vagus Nerve stimulator Vagus Nerve Stimulator The Vagus nerve in the neck is one of the primary communication lines to the brain. For patients with epilepsy Continue reading ->

Mar 19, 2024

Pacemakers Use Reed sensors for Mode Changing

pacemaker Pacemakers Artificial pacemakers are implantable devices that generate electrical impulses to the heart, to contract the muscles and Continue reading ->

Mar 19, 2024

R5 Ultra-miniature SMD Reed Sensors
R5 SMD Ultra-Miniature Reed Sensors: 6.5mm body length, gull wing and J-lead, 5W, omnipolar, complete data sheet and technical specifications.
Brand: RRE
Manufacturer: Reed Relays and Electronics
Model: R5
3.9 based on 9 reviews