IR-xxxx Reed Sensor with Integrated Resistor
Features
10W Contact Rating. Includes integrated Resistor. Normally Open contact. Two sensitivity bands. Two Lead Formations. Bulk Packed in Boxes.
Description
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
 | Drawing of Cylindrical MagnetsDrawing of Rectangular Bar Magnets starFeaturesNdFeB High Energy. Nickel coated. Energized Continue reading Nov 18, 2020 |
Actuation Distances for IR-xxxx Reed Sensors
 | Operate and release distances for the IR-xxxx reed sensor in the two standard AT bands when actuated with standard magnets are listed Continue reading Oct 30, 2020 |
Electrical
| Contact Form | A | |
| Contact Rating (max) | W/VA | 10.0 |
| Switching Current (max) | A | 0.5 |
| Carry Current (max) | A | 0.75 |
| DC Switching Voltage (max) | VDC | 100 |
| Breakdown Voltage (min) | VDC | 150 |
| Contact Resistance (max) | mΩ | 150 |
| 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
IR-(Resistor Value)-(Operate Band Code)
| Operate Band Code | ||
| 1 | AT | 10-15 |
| 2 | AT | 15-20 |
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
 | 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
 | 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
 | 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
 | 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
 | 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
 | 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 IR-xxxx Reed Sensor is known to perform well.
Reed sensors in Accurate level sensing of fluids
 | 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 Accurate fuel level sensing
 | Fuel Level Automobile fuel gauges are used to display the volume of fuel in the tank. These gauges require a potentiomteric feedback Continue reading Nov 7, 2020 |
Reed sensors in Contact protection Circuits
 | Pump causing in-rush current Contact protection is required for any heavy load switching device, such as pumps mechanical, magnetic or Continue reading Nov 6, 2020 |