HC-89 Interrupt Sensor

HC-89 Interrupt Sensor is a compact and reliable optical slot-type sensor designed for precise object detection, speed measurement, and position sensing in electronic and automation systems. By combining an infrared LED emitter and a phototransistor receiver in a single U-shaped housing, the HC-89 interrupt sensor accurately detects interruptions caused by opaque objects passing through the slot.

This sensor is widely used in microcontroller-based projects, rotary encoders, counting systems, and industrial automation equipment due to its fast response time, stable output, and easy integration. Its simple digital output makes it highly compatible with popular development platforms such as Arduino, Raspberry Pi, ESP32, PIC, and ARM-based controllers.

Designed for durability and consistent performance, the HC-89 interrupt sensor delivers reliable operation in both DIY and professional applications, making it an excellent choice for engineers, students, and hobbyists alike.

Key Features of HC-89 Interrupt Sensor

• Optical Slot-Type Design
  Integrates an IR LED and phototransistor in a U-shaped housing for accurate interrupt detection.

• Fast Response Time
  Enables high-speed object detection, suitable for encoder and RPM measurement applications.

• Stable Digital Output
  Provides clean and consistent output signals for direct interfacing with microcontrollers.

• Compact & Lightweight
  Small form factor allows easy mounting in space-constrained designs.

• Low Power Consumption
  Efficient operation makes it suitable for battery-powered and embedded systems.

• High Sensitivity & Accuracy
  Detects even small objects passing through the slot with minimal error.

• Easy Integration
  Simple wiring and compatibility with standard logic circuits reduce development time.

Technical Specifications – HC-89 Interrupt Sensor

• Sensor Type: Optical Interrupt / Slot Sensor

• Model: HC-89

• Detection Method: Infrared beam interruption

• Output Type: Digital (Phototransistor)

• Operating Voltage: 3.3 V – 5 V DC

• Current Consumption: ≤ 20 mA

• Slot Width: Approx. 5 mm

• Emitter: Infrared LED

• Receiver: Phototransistor

• Response Time: Microsecond-level

• Operating Temperature: –20°C to +70°C

• Mounting Type: Through-hole / PCB mount

• Housing Material: Plastic

• Weight: Lightweight, suitable for compact designs

Note: Specifications may vary slightly depending on manufacturer and batch.

Applications of HC-89 Interrupt Sensor

The HC-89 interrupt sensor is a versatile component used in a wide range of electronic and electromechanical systems where precise detection and timing are required. Common applications include:

Rotary Encoders & RPM Measurement

Used in motor speed detection, encoder wheels, and tachometers to measure rotational speed accurately.

Object Counting Systems

Ideal for production line counters, item detection systems, and automated counting applications.

Robotics & Automation

Used in line-following robots, obstacle detection mechanisms, and position feedback systems.

Limit Switch Replacement

Acts as a non-contact limit switch for detecting end positions without mechanical wear.

Printer & Scanner Mechanisms

Commonly used for paper detection, alignment, and position sensing in office equipment.

DIY & Educational Projects

Perfect for Arduino and Raspberry Pi projects, electronics training labs, and student experiments.

Industrial Control Systems

Applied in conveyor systems, motion control units, and automation equipment for reliable sensing.

Why Choose the HC-89 Interrupt Sensor?

The HC-89 Interrupt Sensor offers a cost-effective and dependable solution for accurate motion and object detection. Unlike mechanical switches, this optical sensor provides non-contact operation, ensuring longer lifespan and higher reliability. Its fast response time and stable output make it ideal for both high-speed and precision applications.

With easy interfacing, low power consumption, and wide compatibility, the HC-89 sensor is suitable for professional engineers, system integrators, educators, and hobbyists. Whether you are designing an industrial automation system or building a simple DIY project, this sensor delivers consistent and precise results.

Enhance your sensing and detection applications with the HC-89 Interrupt Sensor—a reliable, compact, and efficient solution for modern electronic systems.

Package Includes:

1 x HC-89 Interrupt Sensor

FAQ

1. Where can we buy this HC-89 Interrupt Sensor?

This product is available online https://aiiottech.in/product/hc-89-interrupt-sensor/ and also available at our store in Pudupakkam/Kelambakkam, Chennai-603103

2. When can I get this HC-89 Interrupt Sensor after placing the order?

RGRJ AIIoT TECHNOLOGIES will immediately ship and deliver the product within 1-3 working days.

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