RPI-221 Allicdata Electronics
Allicdata Part #:

511-1347-ND

Manufacturer Part#:

RPI-221

Price: $ 0.00
Product Category:

Sensors, Transducers

Manufacturer: ROHM Semiconductor
Short Description: SENSR OPTO SLOT 2.3MM TRANS THRU
More Detail: Optical Sensor Transmissive 0.091" (2.3mm) Phototr...
DataSheet: RPI-221 datasheetRPI-221 Datasheet/PDF
Quantity: 29508
Stock 29508Can Ship Immediately
Specifications
Series: --
Packaging: Bulk 
Part Status: Active
Sensing Distance: 0.091" (2.3mm)
Sensing Method: Transmissive
Output Configuration: Phototransistor
Current - DC Forward (If) (Max): 50mA
Current - Collector (Ic) (Max): 30mA
Voltage - Collector Emitter Breakdown (Max): 30V
Response Time: 10µs, 10µs
Operating Temperature: -25°C ~ 85°C
Mounting Type: Through Hole
Package / Case: PCB Mount
Type: Unamplified
Description

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Optical sensors, such as photointerrupters, are devices used to detect the presence or absence of a light source. The RPI-221 is a type of optical sensor known as a slot type photointerrupter, which consists of a photosensitive receiver and an emitter, both usually housed in a plastic body. The RPI-221 has a transistor output, meaning it can be interfaced with low-voltage circuitry, such as microcontrollers.

The RPI-221 operates on a basic principle of light interruption. The emitter of the photointerrupter emits light toward its photosensitive receiver. The light is interrupted when something passes between the emitter and receiver, and the transistor output is triggered. The interruption of the light is used to detect the presence or absence of an object, such as a sheet of paper or a wheel rotation.

The RPI-221 photointerrupter has a variety of applications. It is typically used in industrial automation, such as for paper detection or for the monitoring of machine parts. It can be used to sense the presence of an object, such as a sheet of paper or a wheel rotation, and it can detect the presence or absence of a material, such as a type of paper. It can also be used as an input device in security systems and switches, and in medical equipment such as heart monitors or centrifuges. It can be used for automated testing and calibration, and it can be used as an interface device between a computer and a device.

The RPI-221 has a few important design considerations to take into account. It should be placed in an area with minimal ambient light, as ambient light can interfere with the sensor’s operation. It should also be placed in an area without electrical interference, as this can also affect the performance of the sensor. The distance between the emitter and receiver should be as small as possible and the object to be detected should be of a suitable size for the opening of the slot. The device should be mounted securely and the electrical connection should be correct.

The RPI-221 works by using a light-sensitive receiver and an emitter, both of which are housed in a plastic body. When a light source is detected, the transistor output is triggered and an electrical signal is sent. This signal can then be used to detect the presence or absence of an object, as well as to detect the presence or absence of a material. The RPI-221 is a popular, low-voltage optical sensor used in many applications, from industrial automation to security systems.

The specific data is subject to PDF, and the above content is for reference

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