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 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. 177-3597
Mfr. Part No.QT60326-ASG
HK$62.071
Each (In a Tray of 160)
units
Capacitive - 1 (Source) mA, 4 (Sink) mA 0.6 V - Digital Open Drain Surface Mount TQFP 44 25 mA 10.1 x 8 x 1.05mm 1.05mm 10.1mm
RS Stock No. 177-1526
Mfr. Part No.CAP1206-1-SL
HK$4.587
Each (In a Tube of 57)
units
Capacitive 400 kHz - 0.4 V - - Open Drain Surface Mount SOIC 14 750 μA 8.65 x 3.9 x 1.5mm 1.5mm 8.65mm
RS Stock No. 137-1030
Mfr. Part No.CAP1203-1-AC3-TR
HK$4.70
Each (In a Pack of 10)
units
Capacitive - 8mA 0.4 V - Analogue, Digital Analogue, Digital Surface Mount TDFN 8 750 μA 2.1 x 3.1 x 0.75mm 0.75mm 2.1mm
RS Stock No. 177-1807
Mfr. Part No.CAP1206-1-SL
HK$5.432
Each (In a Pack of 20)
units
Capacitive 400 kHz - 0.4 V - - Open Drain Surface Mount SOIC 14 750 μA 8.65 x 3.9 x 1.5mm 1.5mm 8.65mm
RS Stock No. 177-4030
Mfr. Part No.QT60326-ASG
HK$74.84
Each
units
Capacitive - 1 (Source) mA, 4 (Sink) mA 0.6 V - Digital Open Drain Surface Mount TQFP 44 25 mA 10.1 x 8 x 1.05mm 1.05mm 10.1mm
RS Stock No. 137-0762
Mfr. Part No.CAP1208-1-A4-TR
HK$6.24
Each (On a Reel of 5000)
units
Capacitive - 8mA 0.4 V - Analogue, Digital Analogue, Digital Surface Mount QFN 16 750 μA 3.1 x 3.1 x 0.85mm 0.85mm 3.1mm
RS Stock No. 137-0761
Mfr. Part No.CAP1203-1-AC3-TR
HK$3.90
Each (On a Reel of 3300)
units
Capacitive - 8mA 0.4 V - Analogue, Digital Analogue, Digital Surface Mount TDFN 8 750 μA 2.1 x 3.1 x 0.75mm 0.75mm 2.1mm
RS Stock No. 177-1812
Mfr. Part No.CAP1293-1-SN
HK$5.19
Each (In a Pack of 20)
units
Capacitive 400 kHz - 0.4 V - - Open Drain Surface Mount SOIC 8 750 μA 4.9 x 3.9 x 1.5mm 1.5mm 4.9mm
RS Stock No. 177-1530
Mfr. Part No.CAP1298-1-SL
HK$6.638
Each (In a Tube of 57)
units
Capacitive 400 kHz - 0.4 V - - Open Drain Surface Mount SOIC 14 750 μA 8.65 x 3.9 x 1.5mm 1.5mm 8.65mm
RS Stock No. 137-0763
Mfr. Part No.CAP1296-1-AIA-TR
HK$5.18
Each (On a Reel of 5000)
units
Capacitive - 8mA 0.4 V - Analogue, Digital Analogue, Digital Surface Mount DFN 10 750 μA 3.1 x 3.1 x 0.85mm 0.85mm 3.1mm
RS Stock No. 137-1032
Mfr. Part No.CAP1208-1-A4-TR
HK$7.57
Each (In a Pack of 5)
units
Capacitive - 8mA 0.4 V - Analogue, Digital Analogue, Digital Surface Mount QFN 16 750 μA 3.1 x 3.1 x 0.85mm 0.85mm 3.1mm
RS Stock No. 177-1528
Mfr. Part No.CAP1296-1-SL
HK$5.069
Each (In a Tube of 57)
units
Capacitive 400 kHz - 0.4 V - - Open Drain Surface Mount SOIC 14 750 μA 8.65 x 3.9 x 1.5mm 1.5mm 8.65mm
RS Stock No. 177-1527
Mfr. Part No.CAP1293-1-SN
HK$4.34
Each (In a Tube of 100)
units
Capacitive 400 kHz - 0.4 V - - Open Drain Surface Mount SOIC 8 750 μA 4.9 x 3.9 x 1.5mm 1.5mm 4.9mm
RS Stock No. 177-1825
Mfr. Part No.CAP1296-1-SL
HK$5.81
Each (In a Pack of 20)
units
Capacitive 400 kHz - 0.4 V - - Open Drain Surface Mount SOIC 14 750 μA 8.65 x 3.9 x 1.5mm 1.5mm 8.65mm
RS Stock No. 137-1034
Mfr. Part No.CAP1296-1-AIA-TR
HK$6.22
Each (In a Pack of 5)
units
Capacitive - 8mA 0.4 V - Analogue, Digital Analogue, Digital Surface Mount DFN 10 750 μA 3.1 x 3.1 x 0.85mm 0.85mm 3.1mm
RS Stock No. 177-1845
Mfr. Part No.CAP1298-1-SL
HK$7.74
Each (In a Pack of 10)
units
Capacitive 400 kHz - 0.4 V - - Open Drain Surface Mount SOIC 14 750 μA 8.65 x 3.9 x 1.5mm 1.5mm 8.65mm