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

IR-xxxx Reed Sensor with Integrated Resistor



10W Contact Rating. Includes integrated Resistor. Normally Open contact. Two sensitivity bands. Two Lead Formations. Bulk Packed in Boxes.



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


This reed sensor is built with an internal resistor which can either be used for level sensing applications or for contact protection. A diode can also be put in place of the resistor and the dot marked on the sensor can be used to denote the polarity. Various activating distances are available depending on the magnet and then 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. 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. A ring magnet can also be used around the sensor, for use in float applications.

Cylindrical and Rectangular Magnets

Standard magnets-RRE We offer a range of magnets in different sizes and shapes, specially selected to...Continue reading ->

Actuation Distances for IR-xxxx Reed Sensors

IR-XXXX magnet actuation Operate and release distances for the IR-xxxx reed sensor in the two standard AT...Continue reading ->


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


Operate Time (max)ms0.35
Bounce Time (max)ms0.30
Release Time (max)ms0.10
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

IR-(Resistor Value)-(Operate Band Code)

Operate Band Code

Example: IR-0120-1 denotes IR-0120 Reed Sensor in 10-15 Operate Band (AT), with a 120 ohms integrated resistor on the middle two pins.

Resistor value in ordering code refers to any standard integrated resistor (1/8 W, 1% tolerance).

Other Special Configurations: Lower Static Contact 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...Continue reading ->

Product Handling

Dropping Reed switch Reed Switches, Reed Sensor and Magnet Sensors are sensitive devices that easily develop micro...Continue reading ->

Reflow Soldering

Drawing of SMD reflow soldering curve Reflow Soldering is the process of automatically soldering multiple devices to a PCB. Continue...Continue reading ->

Manual Soldering

Soldered Reed switch Manual Soldering of reed switch leads may be required when using custom plastic housing...Continue reading ->

Ferro-magnetic parts

Ferromagnetic parts Using Ferro-magnetic mounting parts or screws within a 100 mm vicinity of a reed switch will...Continue reading ->

Reed Contact Protection Circuits

Inductive Load Protection Circuit When a reed switch is to be connected to an inductive load or a...Continue reading ->


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 IR-xxxx Reed Sensor is known to perform well.

Reed sensors in Accurate level sensing of fluids

Reed switches in fluid level sensing Special reed sensors with an integrated resistor can be mounted on PCBs to give...Continue reading ->

Reed sensors in Accurate fuel level sensing

Reed switches in fuel level sensing Special reed sensors with an integrated resistor can be mounted on PCBs to give...Continue reading ->

Reed sensors in Contact protection Circuits

Reed switches in inrush current protection Reed switch applications require contact protection when used with loads having in-rush current. Reed...Continue reading ->
IR-xxxx Reed Sensor with Integrated Resistor
IR-xxxx Reed Sensor with integrated Resistor from RRE!: 10W, PCB mountable, complete data sheet and technical specifications.
Brand: RRE
Manufacturer: Reed Relays and Electronics
Model: IR-xxxx
3.5 based on 2 reviews