BPW41N High-Speed PIN Photodiode

Overview

The BPW41N is a high-speed, high-sensitivity PIN photodiode designed for detecting near-infrared radiation. It features a large radiant sensitive area, wide angle of sensitivity, and fast response times, making it ideal for applications requiring precise and rapid light detection. The device comes in a plastic case with an integrated IR filter optimized for 950 nm wavelength, enhancing its performance in infrared applications.

Features

• Large Radiant Sensitive Area: 7.5 mm² for enhanced light detection capability.
• Wide Angle of Half Sensitivity: ±65°, allowing for broad detection coverage.
• High Radiant Sensitivity: Optimized for efficient infrared light detection.
• Fast Response Times: Suitable for high-speed applications.
• Small Junction Capacitance: Improves high-frequency performance.
• Integrated IR Filter: Plastic case with a 950 nm filter for near-infrared applications.
• Robust Construction: Designed for reliability in various operating conditions.

Applications

The BPW41N is widely used in applications requiring high-speed and high-sensitivity infrared detection. Key applications include:

• High-Speed Photo Detection: Used in optical communication systems and light barriers.
• Infrared Remote Controls: Detects signals from remote control devices.
• Industrial Automation: Employed in sensors for object detection and positioning.
• Medical Devices: Utilized in pulse oximeters and other infrared sensing equipment.
• Security Systems: Integrated into motion detectors and surveillance systems.

Electrical Characteristics

The following table outlines the key electrical characteristics of the BPW41N under standard test conditions (Tamb = 25°C):

• Reverse Voltage (VR): 60 V
• Power Dissipation (PV): 215 mW (at Tamb ≤ 25°C)
• Dark Current: Typically low, ensuring minimal noise in detection.
• Radiant Sensitivity: High sensitivity in the near-infrared spectrum.
• Response Time: Fast rise and fall times for high-speed applications.

Package Information

The BPW41N is housed in a robust plastic case with an integrated IR filter. Key package details include:

• Package Type: Plastic case with IR filter (950 nm).
• Dimensions: Compact form factor suitable for space-constrained applications.
• Pin Configuration: Standard pin layout for easy integration into circuits.
• Operating Temperature Range: Designed to perform reliably across industrial temperature ranges.

Performance Graphs (Typical)

For detailed performance characteristics, refer to the manufacturer's datasheet, which includes graphs for:

• Radiant Sensitivity vs. Wavelength
• Response Time vs. Load Resistance
• Dark Current vs. Reverse Voltage

Handling and Storage

To ensure optimal performance and longevity of the BPW41N, adhere to the following handling and storage guidelines:

• ESD Protection: Handle with appropriate ESD precautions to prevent damage.
• Storage Conditions: Store in a dry, cool environment away from direct sunlight.
• Cleaning: Use recommended cleaning methods to avoid damaging the IR filter.

Conclusion

The BPW41N is a versatile and high-performance PIN photodiode, offering exceptional sensitivity and speed for near-infrared detection. Its robust design, integrated IR filter, and wide detection angle make it suitable for a variety of industrial, medical, and consumer applications. Engineers and designers can rely on the BPW41N for reliable and efficient light sensing solutions.