The PD438C is a silicon NPN phototransistor in a miniature surface mount package. This device is designed for high-density mounting on printed circuit boards and is suitable for various light detection applications. It is highly sensitive to infrared radiation, making it an ideal component for remote control systems, light barriers, and other optoelectronic devices.

Applications:

• Remote control systems: Used as a receiver for IR signals.
• Light barriers: Detects interruptions in a light beam.
• Optoelectronic switches: Triggers circuits based on light levels.
• Optical sensors: Measures light intensity in various applications.
• Proximity detectors: Detects the presence of nearby objects.

Features:

• High sensitivity: Responds effectively to low levels of infrared radiation.
• Miniature surface mount package: Enables compact and efficient PCB designs.
• Fast switching speed: Allows for rapid detection and response.
• Wide viewing angle: Detects light from a broad area.
• RoHS compliant: Environmentally friendly construction.

Benefits:

• Improved system performance: High sensitivity ensures reliable detection.
• Space-saving design: Miniature package reduces PCB footprint.
• Enhanced responsiveness: Fast switching speed improves system reaction time.
• Versatile application: Suitable for a wide range of optoelectronic projects.
• Environmentally responsible: Complies with RoHS standards.

Additional Details:

The PD438C features a collector-emitter voltage of 30V and a collector current of 20mA. The operating temperature ranges from -25°C to +85°C. The peak sensitivity wavelength is typically around 940nm, aligning well with common infrared LEDs. This phototransistor offers excellent linearity and stability, ensuring consistent performance over a wide range of operating conditions. The small size and surface-mount design facilitate automated assembly processes, reducing manufacturing costs. The PD438C's robust construction ensures reliable operation in demanding environments. It is commonly used in consumer electronics, industrial automation, and automotive applications.