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 
R5-J Reed Sensor PCB Layout drawing 
R5-J Carrier Tape 
R5-S SMD Reed Sensor 
R5-S Reed Sensor PCB Layout drawing 
R5-S Carrier Tape
Features
Normally Open contact. Two sensitivity bands. Two Lead Formations. Packed in Tapes for automatic assembly.
Actuation Distances for R5 Ultra-miniature Reed Sensors
 | Operate and release distances for the R5 ultra-miniature reed sensor in the two lead...Continue reading |
Cylindrical and Rectangular Magnets
 | We offer a range of magnets in different sizes and shapes, specially selected to...Continue reading |
Electrical
| Contact Form | A | |
| Contact Rating (max) | W/VA | 5.0 |
| Switching Current (max) | A | 0.35 |
| Carry Current (max) | A | 0.5 |
| DC Switching Voltage (max) | VDC | 100 |
| Breakdown Voltage (min) | VDC | 150 |
| Contact Resistance (max) | mΩ | 200 |
| Insulation Resistance (min) | Ω | 109 |
| Capacitance (typ) | pF | 0.2 |
Miscellaneous
| Operate Time (max) | ms | 0.35 |
| Bounce Time (max) | ms | 0.30 |
| Release Time (max) | ms | 0.10 |
| Resonance Frequency (typ) | Hz | <2000 |
| Operating Frequency (max) | Hz | 500 |
| Operating Temperature Range | °C | -40 to +140 |
| Shock Resistance (½Sin wave for 11ms) | G | 30 |
| Vibration Resistance (10-2000 Hz) | G | 20 |
Ordering Code
R5-(Formation Code)-(Operate Band Code)
| Formation Code | Lead Type |
| S | Gull-wing SMD |
| J | J-Lead SMD |
| Operate Band Code | ||
| 1 | AT | 7-12 |
| 2 | AT | 12-17 |
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 any application, it is important to select the correct Ampere Turn (AT) or...Continue reading |
Product Handling
 | Reed Switches, Reed Sensor and Magnet Sensors are sensitive devices that easily develop micro...Continue reading |
Reflow Soldering
 | Reflow Soldering is the process of automatically soldering multiple devices to a PCB. Continue...Continue reading |
Manual Soldering
 | Manual Soldering of reed switch leads may be required when using custom plastic housing...Continue reading |
Ferro-magnetic parts
 | Using Ferro-magnetic mounting parts or screws within a 100 mm vicinity of a reed switch will...Continue reading |
Reed Contact Protection Circuits
 | When a reed switch is to be connected to an inductive load or a...Continue reading |
Applications
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 and impantable Cardioverter-defibrillators use reed sensors to alter the mode of operation using...Continue reading |
Reed sensors for detecting Ignition Key
 | As long as the ignition key detecting reed sensor is not actuated means that...Continue reading |
Reed Sensors in Pediatric Feeding tubes
 | To know the location of the end of a feeding tube, tiny reed switches...Continue reading |
Reed Sensors in Electric Car Chargers
 | 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
 | 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 Sensors are very light devices and can be used in model airplanes, helicopters...Continue reading |
Reed sensors in Accurate level sensing of fluids
 | Special reed sensors with an integrated resistor can be mounted on PCBs to give...Continue reading |
Reed switches in Domestic Coffee Machines
 | Domestic coffee machines use a solenoid to fill up the water reservoir whenever needed....Continue reading |
Reed sensors in weather proof electronics
 | In weather smart phones tablets, hermetically sealed reed sensors within the IP67 enclosure can...Continue reading |
Reed switches and Reed sensors in Spirometers
 | Reed Switches help measure the volume of air intake and the time in a...Continue reading |
Reed switches in Vagus Nerve Stimulators
 | Vagus Nerve stimulators are implantable devices which control the stimulation of impulses to control...Continue reading |
Reed switches and Reed sensors in Pacemakers
 | Mode changing in a pacemaker requires an external wand with an embedded magnet, with...Continue reading |