BPW34FA
Product Overview
- Category: Photodiode
- Use: Light detection and measurement
- Characteristics: High sensitivity, fast response time
- Package: SMD (Surface Mount Device)
- Essence: Reliable light sensing component
- Packaging/Quantity: Typically available in reels of 2000 pieces
Specifications
- Peak Wavelength: 565 nm
- Reverse Voltage: 32 V
- Dark Current: 2 nA
- Capacitance: 6 pF
- Radiant Sensitive Area: 7.5 mm²
Detailed Pin Configuration
The BPW34FA photodiode has three pins: anode, cathode, and no connection (NC). The anode is connected to the positive terminal, the cathode to the negative terminal, and the NC pin is left unconnected.
Functional Features
- High sensitivity to light in the visible spectrum
- Fast response time for rapid light detection
- Low dark current for accurate measurements even in low light conditions
Advantages
- Small form factor for easy integration into compact designs
- Wide spectral range for versatile applications
- Low capacitance for high-speed applications
Disadvantages
- Susceptible to damage from excessive light exposure
- Limited to visible light detection, not suitable for infrared or ultraviolet applications
Working Principles
The BPW34FA operates on the principle of the internal photoelectric effect. When photons strike the sensitive area of the diode, electron-hole pairs are generated, creating a photocurrent proportional to the incident light intensity.
Detailed Application Field Plans
- Light Sensing Systems: Used in light meters, ambient light sensors, and optical encoders.
- Medical Devices: Employed in pulse oximeters and photoplethysmography sensors for measuring blood oxygen levels.
- Industrial Automation: Integrated into machinery for detecting presence or absence of objects based on light reflection.
Detailed and Complete Alternative Models
- BPW21R: Similar characteristics with higher radiant sensitive area
- BPW85C: Enhanced sensitivity in the near-infrared spectrum
- BPW17N: Lower capacitance for ultra-fast response times
This comprehensive entry provides a detailed understanding of the BPW34FA photodiode, including its specifications, functional features, advantages, disadvantages, working principles, application field plans, and alternative models, making it a valuable resource for engineers and researchers in the field of optoelectronics.
技術ソリューションにおける BPW34FA の適用に関連する 10 件の一般的な質問と回答をリストします。
What is BPW34FA?
- BPW34FA is a silicon PIN photodiode with high speed and high radiant sensitivity in a clear, side view plastic package.
What are the typical applications of BPW34FA?
- BPW34FA is commonly used in light barriers, encoders for rotational speed detection, and ambient light sensors for display backlight dimming.
What is the spectral range of BPW34FA?
- The spectral range of BPW34FA is from 350 nm to 1100 nm.
What is the responsivity of BPW34FA?
- The responsivity of BPW34FA is typically 0.64 A/W at 900 nm.
What is the dark current of BPW34FA?
- The dark current of BPW34FA is typically 2 nA at 5 V reverse bias voltage.
What is the capacitance of BPW34FA?
- The capacitance of BPW34FA is typically 45 pF at 0 V reverse bias voltage.
Can BPW34FA be used in low-light conditions?
- Yes, BPW34FA can be used in low-light conditions due to its high radiant sensitivity.
Is BPW34FA suitable for high-speed applications?
- Yes, BPW34FA is suitable for high-speed applications due to its fast response time.
What is the operating temperature range of BPW34FA?
- The operating temperature range of BPW34FA is from -40°C to +100°C.
Can BPW34FA be used in automotive applications?
- Yes, BPW34FA can be used in automotive applications such as rain sensors and twilight switches due to its reliability and performance under varying conditions.