Proximity Sensor ICs

Proximity Sensor ICs are used for object detection within a defined distance of the sensor. The proximity sensor sits within a circuit and provides output signals to trigger other functions. Proximity sensor ICs (integrated circuits) are components which are to be designed into PCBs.

Where are they used?

Proximity sensors ICs are designed into circuits for various non-contact sensing applications. They are often used in machine automation, mobile phones, proximity alarm systems, parking sensors as well as in military applications.

Types of Proximity Sensors

Various proximity sensor ICs are available, using a range of sensing technologies. These detection types benefit various applications depending on the users end goal and the system requirements. Some of the main proximity sensors use inductive, capacitive or infrared sensing depending on their application or sensing environment.

What are inductive proximity sensors?

Inductive sensors are used to detect metallic objects. Using a simple electromagnetic field, the sensor monitors the rise and fall of oscillation when a metallic object comes within the sensing range. This variation is monitored by a threshold circuit that can generate the relevant output signal when triggered. Operating ranges will vary depending on the shape and size of the sensor as well as the types of material that expect to be monitored by the sensor.

What are capacitive proximity sensors?

Capacitive sensors can be used for both metal and non-conductive objects. They offer Capacitive sensors use an electrical field to detect objects. Any changes in capacitance in the sensing area are detected by the sensor, which then changes state.

Example of proximity sensing:

Many smartphones today feature proximity sensing. An example of this is when you hold your phone to your ear, the sensor will detect this as an object in close proximity. This detection then triggers the screen to switch off. Proximity sensors are also used in switches, for example with hand gestures.


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Description Price Sensor Type Maximum Switching Frequency Maximum Output Current Maximum Output Voltage Sensing Distance Switching Mode Output Type Mounting Type Package Type Pin Count Maximum Supply Current Dimensions Height Length
RS Stock No. 124-2973
Mfr. Part No.CY8CMBR3102-SX1I
PHP74.226
Each (In a Pack of 10)
units
Capacitive - 85mA 0.6 (Low Level) V 300mm Analogue Open Drain Surface Mount SOIC 8 25 mA 4.97 x 3.98 x 1.47mm 1.47mm 4.97mm
RS Stock No. 122-9751
Mfr. Part No.AMG8834
BrandPanasonic
PHP1,995.91
Each
units
Infrared Array Sensor - 10mA - 7m Digital - Surface Mount - 14 4.5 mA 11.6 x 8 x 4.3mm 4.3mm 11.6mm
RS Stock No. 188-5384
Mfr. Part No.CY8CMBR3102-SX1I
PHP70.039
Each (In a Tube of 97)
units
Proximity Sensor 400 (Clock) MHz -1 (High Level) mA, 10 (Low Level) mA 0.6 (Low Level) V 300mm Analogue PWM Surface Mount SOIC 8 140 mA 4.97 x 3.98 x 1.48mm 1.48mm 4.97mm
RS Stock No. 177-4879
Mfr. Part No.D6T-44L-06
BrandOmron
PHP2,128.438
Each (In a Tray of 10)
units
Thermal Sensor - - - - Digital - Surface Mount - - 5 mA 18 x 14 x 4.75mm 4.75mm 18mm
RS Stock No. 788-4937
Mfr. Part No.D6T-44L-06
BrandOmron
PHP2,194.53
Each
units
Thermal Sensor - - - - Digital - Surface Mount - - 5 mA 18 x 14 x 4.75mm 4.75mm 18mm
RS Stock No. 892-0022
Mfr. Part No.Si1145-M01-GMR
PHP153.32
Each (In a Pack of 2)
units
Proximity Sensor - - - 1 to 50cm Digital Open Drain Surface Mount QFN 10 - 4.9 x 2.85 x 1.2mm 1.2mm 4.9mm
RS Stock No. 755-3097
Mfr. Part No.Si1102-A-GMR
PHP203.39
Each
units
Optical Proximity Detector - - - 500mm - PWM Surface Mount ODFN-8 8 10 μA 3 x 3 x 0.75mm 0.75mm 3mm
RS Stock No. 892-0016
Mfr. Part No.Si1141-M01-GMR
PHP146.43
Each (In a Pack of 2)
units
Proximity Sensor - - - 1 to 50cm Digital Open Drain Surface Mount QFN 10 - 4.9 x 2.85 x 1.2mm 1.2mm 4.9mm
RS Stock No. 165-2434
Mfr. Part No.VCNL3020-GS08
BrandVishay
PHP73.548
Each (On a Reel of 3300)
units
Proximity Sensor - - - 200mm Digital Digital, Open Drain Surface Mount - 10 200 (LED Pulse) mA 4.9 x 2.4 x 0.83mm 0.83mm 4.9mm
RS Stock No. 169-0196
Mfr. Part No.SI1141-M01-GMR
PHP126.053
Each (On a Tape of 100)
units
Proximity Sensor - - - 1 to 50cm Digital Open Drain Surface Mount QFN 10 - 4.9 x 2.85 x 1.2mm 1.2mm 4.9mm
RS Stock No. 798-5273
Mfr. Part No.MTCH101-I/OT
BrandMicrochip
PHP18.522
Each (In a Pack of 25)
units
Capacitive - 25mA - - Analogue, Digital Open Drain Surface Mount SOT-23 6 25 mA 3.1 x 1.8 x 1.3mm 1.3mm 3.1mm
RS Stock No. 165-4220
Mfr. Part No.MTCH101T-I/OT
BrandMicrochip
PHP20.00
Each (On a Reel of 3000)
units
Capacitive - 25mA - - Analogue, Digital Open Drain Surface Mount SOT-23 6 25 mA 3.1 x 1.8 x 1.3mm 1.3mm 3.1mm
RS Stock No. 892-0034
Mfr. Part No.Si1147-M01-GMR
PHP254.10
Each (In a Pack of 2)
units
Proximity Sensor - - - 1 to 50cm Digital Open Drain Surface Mount QFN 10 - 4.9 x 2.85 x 1.2mm 1.2mm 4.9mm
RS Stock No. 170-3445
Mfr. Part No.NCS36000DG
PHP43.68
Each (In a Tray of 55)
units
Ambient Light, Proximity Sensor - - - - - - Surface Mount SOIC 14 - 8.75 x 4 x 1.75mm 1.75mm 8.75mm
RS Stock No. 165-2247
Mfr. Part No.MTCH101-I/OT
BrandMicrochip
PHP19.394
Each (In a Bag of 3000)
units
Capacitive - 25mA - - Analogue, Digital Open Drain Surface Mount SOT-23 6 25 mA 3.1 x 1.8 x 1.3mm 1.3mm 3.1mm
RS Stock No. 861-0591
Mfr. Part No.MTCH101T-I/OT
BrandMicrochip
PHP20.229
Each (In a Pack of 25)
units
Capacitive - 25mA - - - Open Drain Surface Mount SOT-23 6 80 mA 3.1 x 1.8 x 1.3mm 1.3mm 3.1mm
RS Stock No. 122-6792
Mfr. Part No.VCNL3020-GS08
BrandVishay
PHP157.952
Each (In a Pack of 5)
units
Proximity Sensor - - - 200mm Digital Digital, Open Drain Surface Mount - 10 200 (LED Pulse) mA 4.9 x 2.4 x 0.83mm 0.83mm 4.9mm
RS Stock No. 805-1766
Mfr. Part No.NCS36000DRG
Brandonsemi
PHP46.277
Each (On a Tape of 10)
units
Proximity Sensor - - - - - CMOS Surface Mount SOIC 14 - 8.75 x 4 x 1.5mm 1.5mm 8.75mm
RS Stock No. 121-9926
Mfr. Part No.NCS36000DRG
Brandonsemi
PHP22.796
Each (On a Reel of 3000)
units
Proximity Sensor - - - - - CMOS Surface Mount SOIC 14 - 8.75 x 4 x 1.5mm 1.5mm 8.75mm
RS Stock No. 122-9750
Mfr. Part No.AMG8833
BrandPanasonic
PHP2,078.10
Each
units
Infrared Array Sensor - 10mA - 7m Digital - Surface Mount - 14 4.5 mA 11.6 x 8 x 4.3mm 4.3mm 11.6mm