
Photodiode, Phototransistor & IR LED
Grand Halo provides reliable optoelectronic components for light sensing, detection, and infrared signal applications. Our photodiode, phototransistor, and IR LED diode products are designed for electronic devices that require dependable optical detection or infrared emission.
With over 30 years of optoelectronic packaging experience, Grand Halo supports customers with quality-focused manufacturing, product development, and customized solutions.
Photodiode (PD)
A photodiode is a light-sensitive semiconductor device that converts incident light into an electrical current. It is commonly used for light detection and optical sensing where fast response and accurate light detection are important.
Typical applications include:
- Optical sensors and light detection
- Consumer electronics
- Smoke detectors and safety equipment
- Optical communication systems
- Industrial sensing devices
Phototransistor (PT)
A phototransistor is a light-sensitive transistor that provides greater signal output than a basic photodiode by amplifying the detected light signal. This makes it suitable for applications requiring higher sensitivity and straightforward light-based switching or detection.
Typical applications include:
- Object and position sensing
- Optocouplers
- Industrial automation
- Counting and switching systems
- Consumer and electronic equipment
Infrared Emitting Diode (IR LED)
An IR LED diode emits infrared light that can be detected by a photodiode or phototransistor. IR LEDs are widely used as compact, efficient light sources for non-visible optical sensing and communication applications.
Typical applications include:
- Remote control systems
- Infrared sensors
- Proximity and object detection
- Optical sensing systems
- Consumer electronics
Reliable Optoelectronic Components from Grand Halo
Grand Halo combines 30+ years of optoelectronic packaging experience with automated production and testing capabilities to deliver consistent component quality. Our manufacturing processes include automatic die bonding, wire bonding, molding, testing, sorting, and taping.
Backed by ISO 9001, ISO 14001, and IATF 16949 certifications, Grand Halo provides reliable PD, PT, and IR LED solutions for a wide range of electronic applications. Customized product development and manufacturing support are also available to meet specific design and application requirements.
Looking for a photodiode, phototransistor, or IR LED for your next project?
Contact Grand Halo to discuss your requirements.