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

R3 Miniature SMD Reed Sensor

These miniature SMD reed sensors are designed for low power, high speed switching applications, and have a cost 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 activating distances are available depending on the magnet and the AT band used. The sensors are tested 100% for Operate AT, Release AT, Static Contact Resistance and Variable Contact Resistance before packing. Our products are completely Lead-free and conforms to the RoHS directive. Being an omnipolar 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.

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Features

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

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Benefits

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

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

Actuation Distances for R3 Miniature Reed Sensors

R3S magnet actuation Operate and release distances for the R3 ultra-miniature reed sensor in the three lead formations and two standard AT bands when actuated Continue reading ->

Oct 29, 2020

Electrical

Contact FormA
Contact Rating (max)W/VA10.0
Switching Current (max)A0.5
Carry Current (max)A0.75
DC Switching Voltage (max)VDC100
Breakdown Voltage (min)VDC150
Contact Resistance (max)150
Insulation Resistance (min)Ω109
Capacitance (typ)pF0.2

Miscellaneous

Operate Time (max)ms0.35
Bounce Time (max)ms0.30
Release Time (max)ms0.15
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

R3-(Formation Code)-(Operate Band Code)

Formation CodeLead Type
SGull-wing SMD
FLow Profile SMD
Operate Band Code
1AT10-15
2AT15-20
3AT20-25

Examples: R3-S-1 denotes Gull-wing SMD version in 10-15 Operate Band (AT). R3-F-3 denotes Low Profile SMD Lead version in 20-25 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 product. 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 magnetic sensitivity of a Reed Switch, Reed Sensor or Continue reading ->

Aug 27, 2020

Product Handling

Dropping Reed switch Reed Switch Handling Reed Switches, Reed Sensor and Magnet Sensors are sensitive devices that easily develop micro cracks in the glass Continue reading ->

Aug 31, 2020

Reflow Soldering

Drawing of SMD reflow soldering curve Reflow Soldering is a process of automatically soldering multiple devices on a PCB. This is usually done after components are Continue reading ->

Aug 28, 2020

Manual Soldering

Soldered Reed switch Soldering of Reed Switches and Reed Sensors requires some care to ensure that these delicate devices are not inadvertently damaged. Damage Continue reading ->

Nov 10, 2020

Ferro-magnetic parts

Ferromagnetic parts Reed Switches use an alloy of Nickel and Iron with a few other elements that make the alloy Ferro-magnetic and having a low Remanence. Continue reading ->

Sep 4, 2019

Reed Contact Protection Circuits

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 ->

Aug 31, 2020

Applications

Although we can never restrict the use of a reed sensor to a particular field, the following is a list of some of the applications that the R3 Reed Sensor is known to perform well.

Reed sensors in Automobile Sun Visors

Automobile Sun Visor Automobile Sun Visor Automobiles are fitted with visors that can be swiveled downwards and outwards to block the sun from the driver or Continue reading ->

Nov 7, 2020

Reed Sensors in Electric Car Chargers

E-car charger Electric Car Charging Station Electrical cars are designed to have a range of 250-300 kilometers on a full charge. To ensure that the Continue reading ->

Nov 7, 2020

Reed Sensors for Early Brake Sensing

Brake pedal Automobile Brake Pedal The Brake pedal of an automobile is a very important aspect of the vehicle which is used to give an indication Continue reading ->

Nov 7, 2020

Reed switches in Lightsabers

Light Saber Light Sabers are weapons used by the Jedi and the Sith, in the fictional Star Wars Universe, set in a galaxy far, far, Continue reading ->

Nov 7, 2020

Reed sensors to control Automobile Sun-roofs

automotive sunroof Automobile Sun Roof An automotive sun-roof, usually made of tinted glass, is a movable panel that can be opened or closed, fully or Continue reading ->

Nov 7, 2020

Reed sensors in Radio-controlled Gliders and model Airplanes

Reed switches in model airplanes Model Airplane Radio controlled aircrafts, gliders and helicopters come in various sizes from simple ones with few controls to more Continue reading ->

Nov 7, 2020

Magnet Sensors in Treadmills

Reed switches in treadmill Treadmill Magnet Sensors find a few applications in treadmills for speed and gradient sensing. The speed of the belt is determined by Continue reading ->

Nov 7, 2020

Reed sensors for Tamper-proofing Electricity Meters

tamper proof electricity meter Electric Companies use meters calibrated to measure 1 kilo-watt-hour and also measure maximum demand, which is the peak kilo-watt Continue reading ->

Nov 6, 2020

Reed sensors in Accurate level sensing of fluids

Reed switches in fluid level sensing Fuel Gauge In ships and yachts, it is not only necessary to monitor the exact volume of fuel, but also the volume of the sewage and the Continue reading ->

Nov 7, 2020

Accidental airbag deployment prevention

Reed switches in airbag deployment Airbag deployment The airbag module is designed to inflate extremely rapidly then quickly deflate during a collision or a rapid sudden Continue reading ->

Nov 7, 2020

Magnet sensors for Automobile Cruise Control

Reed switches in speedometers Cruise Control Cruise Control automatically controls the speed of a motor vehicle by adjusting the accelerator so that the driver need Continue reading ->

Nov 7, 2020

Reed sensors in Accurate fuel level sensing

Reed switches in fuel level sensing Fuel Level Automobile fuel gauges are used to display the volume of fuel in the tank. These gauges require a potentiomteric feedback Continue reading ->

Nov 7, 2020

Reed switches as Impact sensors for triggering airbags

Accidental Airbag Prevention Airbags Statistics say almost 80% of automobiles use reed switch based crash sensors for triggering airbags. A ring magnet is mounted Continue reading ->

Nov 7, 2020

Magnet sensors for Dish Washer spray arm jam detection

Reed switches in dish washer spray arm jam detection Dishwasher Dish Washers are appliances used to automatically wash dishes and cutlery, by spraying high pressure hot water and Continue reading ->

Nov 6, 2020

Level Sensing in Washing Machines and Dish Washers

Washing Machines Washing Machine Water Level Washing machines and Dish Washers have smaller reservoirs to hold various fluids that help the user in Continue reading ->

Nov 6, 2020

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 ->

Nov 6, 2020

Reed sensors in Notebook computers and PC desktops

Notebook computer Notebook Computer Notebook computers and Netbooks are part of personal life. Screen time on these devices is anywhere between 2 and 6 Continue reading ->

Nov 6, 2020

Miniature Reed sensors in activating Dentist’s Drill

Dentist Drill Denstist's Drill A dental drill or hand-piece is a hand-held, mechanical instrument used to perform a variety of common dental Continue reading ->

Nov 6, 2020

R3 Miniature SMD Reed Sensor
R3 SMT reed sensors from RRE: 16.25 mm pitch gull wing, 10W, omnipolar, normally open (NO), complete data sheet and technical specifications.
Brand: RRE
Manufacturer: Reed Relays and Electronics
Model: R3
4.1 based on 6 reviews