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
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Micro Miniature Reed Sensor, R3

  • Drawing of R3S Miniature Reed Sensor
  • Drawing of R3S PCB Layout
  • Drawing of R3F Miniature Reed Sensor
  • Drawing of R3F PCB Layout
  • Drawing of R3 Tape
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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.

📝Description

These micro miniature reed sensors are specifically engineered for high-efficiency, low-power switching applications, offering a significant cost advantage over standard-sized SMD reed sensors. The design incorporates pre-flattened leads that prevent any shock transfer during the SMD formation process, ensuring the sensor’s reliability and longevity.

Depending on the magnet type and the AT band chosen, these sensors support various activating distances, allowing flexibility in application requirements. Each sensor undergoes meticulous testing to ensure top-tier quality, including checks for Operate AT, Release AT, Static Contact Resistance, and Variable Contact Resistance, all of which are conducted with 100% accuracy before the sensors are packaged for shipment.

Committed to environmental sustainability, our products are completely Lead-free and comply with the RoHS directive, meeting global standards for hazardous substance restrictions.

Operating as an omni-polar device, this micro miniature reed sensor can be triggered by either a north pole, a south pole, or both simultaneously. To optimize performance, it is crucial to select the appropriate AT band, magnet strength, and operating axis, as this combination dictates the sensor’s precise operational parameters, ensuring reliable switching with minimal error.

For ease of integration into diverse electronic designs, all dimensions are provided in millimeters (mm), facilitating seamless compatibility across various applications. Whether employed in automotive electronics, consumer devices, or industrial automation, these micro miniature reed sensors excel in delivering dependable, energy-efficient switching solutions, making them an ideal choice for modern technological advancements.

Magnets for Actuating Reed Switches and Reed Sensors

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

Sep 3, 2024

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 ->

Sep 3, 2024

⚡️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 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 ->

Jul 24, 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

🧰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 micro miniature Reed Sensor is known to perform well.

Prosthetic Lock Sensing Using Reed Sensors

Prosthetic arm lock sensing using reed switches Prosthetic arms rely on precise mechanisms to ensure proper attachment and function. The arm must be securely locked in place on the base Continue reading ->

Sep 11, 2024

Valve Position Sensing Using Reed Sensors

Valve position sensing In industries such as water purification, gas, and chemicals, precise control over the cleaning and filtering processes is critical. Continue reading ->

Sep 3, 2024

Inventory Management Using Reed Switches

Supermarket inventory In traditional supermarket environments, manual inventory management poses significant challenges that can lead to inefficiencies and Continue reading ->

Sep 3, 2024

Layering during Coil Winding Using Reed Sensors

Coil Winding A coil winder is an essential machine in the manufacturing of bobbins, inductors, transformers, motors, and other electromagnetic Continue reading ->

Sep 3, 2024

Sun Visor Vanity mirrors use Reed Sensors

Automobile Sun Visor Automobiles are equipped with sun visors designed to shield drivers and passengers from the sun's glare. These visors often feature a Continue reading ->

Sep 3, 2024

Electric Vehicle Chargers use Reed Sensors

E-car charger Electric vehicles (EVs) are engineered to deliver an impressive range of 300-450 kilo-meters on a single charge, offering drivers a Continue reading ->

Sep 3, 2024

Brake Sensing Using Reed Sensors

Brake pedal Brake sensing in an automobile serves as a critical safety feature, signalling to vehicles behind when the vehicle is slowing down. Continue reading ->

Sep 3, 2024

Light Sabers that Use Reed Switch for Special Features

Children playing with toy light sabres Light Sabers stand as iconic weapons wielded by both Jedi and Sith, serving as symbols of power and prowess in combat across galaxies Continue reading ->

Sep 3, 2024

Control of Automobile Sunroofs Using Reed Switches

automotive sunroof An automotive sunroofs, typically constructed from tinted glass, serve as a movable panel that offers the flexibility to be fully or Continue reading ->

Sep 3, 2024

Radio Controlled Airplanes and Gliders Use Reed Sensors

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

Sep 3, 2024

Treadmills Use Magnet Sensors for Belt Speed Sensing

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

Sep 3, 2024

Reed sensors for Tamper-proofing Electricity Meters

Electricity Meter panel Electric companies rely on electricity meters calibrated to measure one kilowatt-hour and determine maximum demand, representing the peak Continue reading ->

Sep 3, 2024

Fluid Level sensing on Ships and Yachts

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

Sep 3, 2024

Cruise Control Systems use Reed Switches

Reed switches in cruise control Cruise Control is an automated feature designed to regulate the speed of a motor vehicle, alleviating the need for the driver to maintain Continue reading ->

Sep 3, 2024

Airbag deployment Using Reed Switch based Seat Sensors

Accidental Airbag Prevention Modern vehicles are equipped with sophisticated airbag systems designed to deploy rapidly and deflate quickly during collisions or rapid Continue reading ->

Sep 3, 2024

Fuel level sensing Using multiple Reed Sensors

Reed switches in fuel level sensing Automobile fuel level gauges serve a crucial role in providing drivers with real-time information about the volume of fuel remaining in Continue reading ->

Sep 3, 2024

Crash Sensors use Reed Switches for Deploying Airbags

Airbags triggered by crash sensor Statistics say almost 80% of automobiles use reed switch based crash sensors or safing sensors for deploying airbags. Luxury cars trigger Continue reading ->

Sep 3, 2024

Dish Washer spray arm jam detection with Reed Sensors

Dish Water spray arms The spray arms of a dish washer move axially in order to clean dishes and cutery by utilizing high pressure hot water and detergent. This Continue reading ->

Sep 3, 2024

Dish Washer and Washing Machine Fluid Level Sensing

Washing Machines Dish Washer models are equipped with smaller reservoirs for fluids such as detergents which are essential for their continuous operation. Continue reading ->

Sep 3, 2024

Reed switches in Domestic Coffee Machines

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

Sep 3, 2024

Notebook Computer Sleep Mode using Reed Sensors

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

Sep 3, 2024

Dentist Drill Application Uses Reed Sensors for Motor control

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

Sep 3, 2024

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
4.6 based on 21 reviews