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

R5 Ultraminiature Reed Sensor Drawing
R5S actuation distance
R5S actuation distance

Click the thumbnails on the left to view actuation distances


Does not require power for operation  Normally Open Form A contact Sputtered Ruthenium contact  Omni-polar device; actuates with either pole of magnet  Two types of lead configurations  Molded with internal blades parallel to SMD feet  Packed in tape and reels conforming to IEC-60286-3 norms  RoHS Compliant and Lead-free  Not Sensitive to ESD


These R5 ultra-miniature SMD 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 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 conform to the RoHS directive.


This reed sensor is suitable for use in the following applications and in many others: cellular phones and PDAs, dentists drills, pacemakers and defibrillatorsnerve stimulatorsspirometers, lightsabers, exhaust emission sensinglevel sensors, key in ignition detection, sun shade shutter, feeding tubes, feeding tubes, sun visor


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) 200
Operating Temperature °C -40 to +140
Shock Resistance (½Sin wave for 11ms) G 30
Vibration Resistance (10-2000Hz) G 20

Ordering Codes

R5-S-(Operate AT Code)

OAT Code AT Band
1 7-12
 2 12-17

Example: R5-S-1
Denotes Gull-wing version in 7 – 12 Operate AT.

Other Special Configurations Available

Non standard lead formations
Dynamic Contact Resistance Limit
Special Release AT Limits
Gold plated leads

Possible magnet actuations

Ultra-miniature Reed Sensor Magnet Actuation Examples

A few examples of magnet actuation are shown above. 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. Click here to view actuation distances of this sensor with the standard magnets.

Recommended Reflow Profile

SMD Soldering Procedure

Tape and Reel Dimensions

The R5-S and the R5-J can be tape and reel packed for automatic pick and place, as per IEC-60286-3 norms. 2500 will be packed per spool. 40 – 80g force will be required to peel off cover tape.

Ultra-miniature Reed Sensor Tape and Reel Drawing

R5 Ultra-miniature SMD Reed Sensors
R5 SMT 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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