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

R2 Standard size SMD Reed Sensor

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Features

10W Contact Rating. 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. Packed in Tape and Reel.

Description

These R2 standard size SMD reed sensors are designed for carrying moderate current and have an SMD pitch which is slightly wider than the miniature 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 and release AT, Contact Resistance and Variable Contact Resistance before packing. 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. All dimensions are in mm.

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 R2 Reed Sensors

R2S magnet actuation Operate and release distances for the R2 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)A1.50
DC Switching Voltage (max)VDC180
Breakdown Voltage (min)VDC200
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

R2-(Formation Code)-(Operate Band Code)

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

Examples: R2-S-3 denotes R2 Reed Sensor with Gull wing SMD formed leads, in 20-25 Operate Band (AT). R2-1-F denotes R2 Reed Sensor with Low profile SMD formed Leads, in 10-15 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 R2 Reed Sensor is known to perform well.

Float Switches in Portable Air Conditioners

portable ac Portable Cooler Air Conditioners remove heat and moisture from an occupied space thereby improving the comfort of the occupants. The Continue reading ->

Nov 6, 2020

Reed Sensors in Hotel Security Card Readers

hotel card reader Hotel Keycard Slot In most hotels, the most secure method to prevent unauthorized entry and allow only the guest to enter a room is by Continue reading ->

Nov 18, 2020

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 switches and Reed Sensors in Barcode Scanners

Barcode Scanner Barcode scanners in supermarkets can be clicked on to a docking system that is integrated with the check-out conveyor belt. This helps Continue reading ->

Nov 6, 2020

Reed Switches in Exhaust Emissions Sensing

Automotive exhaust fume emission Automobile Exhaust Pollution, greenhouse gases and smog play a large role in global warming and it is most important to ensure that Continue reading ->

Nov 7, 2020

Reed switches in Safety Vane applications

conveyor belt Conveyor Vane The automation industry depends on feeding systems which feed parts of different shapes into the assembly machine. The 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 Switches and Reed Sensors in Digital Fishing Reels

Reed switch usage in electric fishing reel Fishing Gear Digital Fishing reels are an improvement over the standard, well-proven fishing reel and rod used for winding and stowing 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 switches and Reed sensors in Pressure Gauges

Reed switches in bourdon tube pressure gauge Pressure Gauge A pressure gauge is an instrument used to display the pressure of a fluid. The most widely used type of pressure gauge Continue reading ->

Nov 7, 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

Reed sensors in Central Locking of Cars with Remote Keys

Reed switches in door sensors Automobile Key Central locking allows the driver or front passenger to simultaneously lock or unlock all the doors of an automobile. 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 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 sensors and Magnet sensors in Commercial Coffee Machines

Reed switches in commercial coffee machine Coffee Machine Commercial coffee and tea vending machines are built with durability in mind as the number of cups served per day could 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

Magnet sensors for Tension Monitoring in Coil Winders

Magnet sensors in Winding count and tension sensing and in Coil Winders Coil Winder Coil Winders help wind bobbins with Copper wire and these bobbins are used in various applications such as in reed relay Continue reading ->

Nov 6, 2020

R2 Standard size SMD Reed Sensors
R2 SMT Reed Sensors from RRE: 19.5 mm pitch gull wing, 10W, omnipolar, normally open (NO), complete data sheet and technical specifications.
Brand: RRE
Manufacturer: Reed Relays and Electronics
Model: R2
3.6 based on 4 reviews