Proximity Sensors

Proximity sensors are discrete sensors that sense when an object has come near to the sensor face. They are able to detect the presence of nearby objects without any physical contact. A proximity sensor emits a beam of electromagnetic radiation and looks for changes in the field or return signal. Proximity sensors are commonly used on Smartphone’s to detect accidental touch screen taps when held to the ear during a call. Typical applications include the detection, position, inspection and counting on automated machines and manufacturing systems. There are four fundamental types of proximity sensors Inductive proximity sensor, Capacitive proximity sensor, Ultrasonic proximity sensor and the Photoelectric or Opto-electronic Sensors.


Inductive proximity sensors respond to ferrous and non - ferrous metal objects. They will also detect metal through a layer of non - metal material. Inductive proximity sensors consist of a coil wound around a soft iron core. The inductance of the sensor changes when a ferrous object is in its proximity. This change is converted to a voltage-triggered switch. Capacitive sensors respond to a change in the dielectric medium surrounding the active face without necessarily making physical contact and can thus be tuned to sense almost any substance. Capacitive sensors can also sense a substance through a layer of glass, plastic or thin carton.


Photoelectric sensors offer non-contact sensing of almost any substance or object up to a range of 10 meters. It consists of a light source (usually an LED, light emitting diode, in either infrared or visible light spectrum) and a detector (photodiode). Ultrasonic sensor utilizes the reflection of high frequency (20 KHz) sound waves to detect parts or distances to the parts. Ultrasonic sensors are the best choice for transparent targets.


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Videos

Proximity and gesture sensing using the FDC1004 EVM

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Ultrasonic Proximity Sensor - An Introduction To Sensors - PyroEDU

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  Manufacturer Part No Newark Part No. Manufacturer / Description
Availability Price for:
Price
Quantity
MTCH101T-I/OT
MTCH101T-I/OT - Proximity Sensor, Adjustable, SOT-23, 6, -40 C, 85 C, 2 V, 5.5 V RoHS Compliant: Yes

88W5071

Proximity Sensor, Adjustable, SOT-23, 6, -40 C, 85 C, 2 V, 5.5 V RoHS Compliant: Yes

MICROCHIP

Proximity Sensor, Adjustable, SOT-23, 6, -40 C, 85 C, 2 V, 5.5 V RoHS Compliant: Yes

4,217 in stock

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5-7 business days shipping for in stock items

More stock available week commencing 30/11/20

Delivery in 10-15 business days from our UK warehouse for in stock items

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SI1143-A11-GMR
SI1143-A11-GMR - Proximity Sensor, QFN, 10, -40 C, 85 C, 1.71 V, 3.6 V RoHS Compliant: Yes

31Y4225

Proximity Sensor, QFN, 10, -40 C, 85 C, 1.71 V, 3.6 V RoHS Compliant: Yes

SILICON LABS

Proximity Sensor, QFN, 10, -40 C, 85 C, 1.71 V, 3.6 V RoHS Compliant: Yes

2,500 in stock

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5-7 business days shipping for in stock items

More stock available week commencing 16/11/20

Delivery in 10-15 business days from our UK warehouse for in stock items

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SI1141-A11-GMR
SI1141-A11-GMR - Proximity Sensor, QFN, 10, -40 C, 85 C, 1.71 V, 3.6 V RoHS Compliant: Yes

31Y4223

Proximity Sensor, QFN, 10, -40 C, 85 C, 1.71 V, 3.6 V RoHS Compliant: Yes

SILICON LABS

Proximity Sensor, QFN, 10, -40 C, 85 C, 1.71 V, 3.6 V RoHS Compliant: Yes

859 in stock

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5-7 business days shipping for in stock items

More stock available week commencing 16/11/20

Delivery in 10-15 business days from our UK warehouse for in stock items

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SI1102-A-GMR
SI1102-A-GMR - Proximity Sensor, Module, 8, -40 C, 85 C, 2.2 V, 5.25 V RoHS Compliant: Yes

31Y4221

Proximity Sensor, Module, 8, -40 C, 85 C, 2.2 V, 5.25 V RoHS Compliant: Yes

SILICON LABS

Proximity Sensor, Module, 8, -40 C, 85 C, 2.2 V, 5.25 V RoHS Compliant: Yes

423 in stock

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5-7 business days shipping for in stock items

More stock available week commencing 16/11/20

Delivery in 10-15 business days from our UK warehouse for in stock items

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VL6180XV0NR/1
VL6180XV0NR/1 - Integrated Proximity Sensor, 100mm Sense Distance, 2.6V to 3V Supply, Optical LGA-12

46Y8576

Integrated Proximity Sensor, 100mm Sense Distance, 2.6V to 3V Supply, Optical LGA-12

STMICROELECTRONICS

PROXIMITY SENSOR, LGA, 12, -20 C, 70 C, 2.6 V, 3 V ROHS COMPLIANT: YES

Short Lead Time

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More stock available week commencing 09/11/20 Contact me when back in stock

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