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...Continue reading ->

Cylindrical and Rectangular Magnets

Standard magnets-RRE We offer a range of magnets in different sizes and shapes, specially selected to...Continue reading ->


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

Reed Sensor Manufacturer Cross Reference For any application, it is important to select the correct Ampere Turn (AT) or...Continue reading ->

Product Handling

Dropping Reed switch Reed Switches, Reed Sensor and Magnet Sensors are sensitive devices that easily develop micro...Continue reading ->

Reflow Soldering

Drawing of SMD reflow soldering curve Reflow Soldering is the process of automatically soldering multiple devices to a PCB. Continue...Continue reading ->

Manual Soldering

Soldered Reed switch Manual Soldering of reed switch leads may be required when using custom plastic housing...Continue reading ->

Ferro-magnetic parts

Ferromagnetic parts Using Ferro-magnetic mounting parts or screws within a 100 mm vicinity of a reed switch will...Continue reading ->

Reed Contact Protection Circuits

Inductive Load Protection Circuit When a reed switch is to be connected to an inductive load or a...Continue reading ->


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.

Reed switches and Reed Sensors in Portable Defibrillators

Defibrillator Defibrillator and impantable Cardioverter-defibrillators use reed sensors to alter the mode of operation using...Continue reading ->

Reed sensors for detecting Ignition Key

key ignition As long as the ignition key detecting reed sensor is not actuated means that...Continue reading ->

Reed Sensors in Pediatric Feeding tubes

Pediatric feeding tube To know the location of the end of a feeding tube, tiny reed switches...Continue reading ->

Reed Sensors in Electric Car Chargers

E-car charger Electrical cars are designed to have a range of 250-300 kilometers on a full...Continue reading ->

Reed Switches and Reed sensors in Canal Hearing Aids

Reed sensors in canal hearing aids A tiny reed sensor inside hearing aids help the user adjust volume levels and...Continue reading ->

Reed sensors in Radio-controlled Gliders and model Airplanes

Reed switches in model airplanes Reed Sensors are very light devices and can be used in model airplanes, helicopters...Continue reading ->

Reed sensors in Accurate level sensing of fluids

Reed switches in fluid level sensing Special reed sensors with an integrated resistor can be mounted on PCBs to give...Continue reading ->

Reed switches in Domestic Coffee Machines

Reed switches in Domestic coffee machine Domestic coffee machines use a solenoid to fill up the water reservoir whenever needed....Continue reading ->

Reed sensors in weather proof electronics

Water proof reed switch In weather smart phones tablets, hermetically sealed reed sensors within the IP67 enclosure can...Continue reading ->

Reed switches and Reed sensors in Spirometers

Spirometer Reed Switches help measure the volume of air intake and the time in a...Continue reading ->

Reed switches in Vagus Nerve Stimulators

Vagus Nerve stimulator Vagus Nerve stimulators are implantable devices which control the stimulation of impulses to control...Continue reading ->

Reed switches and Reed sensors in Pacemakers

pacemaker Mode changing in a pacemaker requires an external wand with an embedded magnet, with...Continue reading ->
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
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