3mm Infrared (IR) Receiver Diode 940nm Black Round Head
The 3mm IR (Infrared) Receiver Diode, also known as a phototransistor, is a compact sensor designed to detect infrared signals rather than emit light. Its dark epoxy lens filters visible light to improve IR sensitivity. Operating at 1.6V–1.8V, it features a long-leg through-hole design for easy PCB mounting. Commonly used in remote control systems, object detection circuits, and robotics projects, it provides reliable and stable infrared signal detection.
مستقبل أشعة تحت الحمراء 3 مم (IR Receiver Diode/Phototransistor) هو حساس مصمم لاكتشاف إشارات الأشعة تحت الحمراء بدلاً من إصدارها. يتميز بعدسة سوداء تعمل كمرشح للضوء المرئي لزيادة دقة الاستقبال. يعمل بجهد 1.6V–1.8V ويأتي بتصميم رجل طويلة للتركيب عبر الثقوب. يستخدم في أجهزة التحكم عن بعد، أنظمة كشف الحركة، وحساسات قطع الشعاع، ويعد عنصرًا أساسيًا في مشاريع الإلكترونيات والروبوتات.
The 3mm IR Receiver Diode (Phototransistor) is a sensitive infrared detection component designed to receive IR signals in electronic systems. Although it resembles a standard LED in shape, it functions as a light sensor rather than a light emitter.
Encased in a dark black or purple epoxy lens, the receiver filters out most visible light while allowing infrared wavelengths to pass through. This improves signal accuracy and reduces interference from ambient lighting.
With a compact 3mm package and through-hole mounting design, it is easy to integrate into PCBs and breadboard circuits. The typical operating voltage ranges from 1.6V to 1.8V, making it suitable for low-power electronics and microcontroller-based systems.
This component is commonly paired with an IR emitter to create detection systems such as beam-break sensors, motion detection modules, and reflective sensing applications.
Specifications
Component Type: Infrared Receiver Diode / Phototransistor
Lens Diameter: 3mm
Lens Color: Dark black/purple (IR filter)
Operating Voltage: 1.6V – 1.8V
Mounting Type: Through-hole
Polarity: Anode (+) and Cathode (-)
Form Factor: Long leg version
Light Sensitivity: Infrared spectrum
Applications
Remote control signal receiving
IR communication systems
Object detection and beam-break sensors
Line-following robots
Motion sensing circuits
Industrial counters and encoders
DIY electronics projects