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BPW85C: Product Overview and Specifications
Introduction
The BPW85C is a phototransistor belonging to the category of optoelectronic components. It is widely used in various applications due to its unique characteristics and functional features.
Basic Information Overview
- Category: Optoelectronic Component
- Use: Light Sensing and Detection
- Characteristics: High Sensitivity, Fast Response Time
- Package: TO-18 Metal Can Package
- Essence: Converts light energy into electrical signals
- Packaging/Quantity: Typically available in reels or trays
Specifications
- Peak Wavelength: 880 nm
- Collector-Emitter Voltage: 32 V
- Emitter-Collector Voltage: 5 V
- Collector Current: 50 mA
- Power Dissipation: 200 mW
- Operating Temperature Range: -40°C to +100°C
Detailed Pin Configuration
The BPW85C phototransistor has a standard TO-18 metal can package with three pins: 1. Collector (C) 2. Base (B) 3. Emitter (E)
Functional Features
- High sensitivity to light in the near-infrared spectrum
- Fast response time for rapid detection and signal processing
- Low dark current for accurate light sensing in low-light conditions
Advantages and Disadvantages
Advantages
- High sensitivity enables precise light detection
- Fast response time allows for quick signal processing
- Low dark current enhances performance in low-light environments
Disadvantages
- Limited spectral range compared to some other photodetectors
- Susceptible to ambient light interference in certain applications
Working Principles
The BPW85C operates based on the principle of light-induced conductivity modulation. When exposed to light, the base-collector junction undergoes a change in conductivity, leading to a corresponding change in collector current. This mechanism enables the conversion of light energy into electrical signals.
Detailed Application Field Plans
The BPW85C finds extensive use in the following application fields: - Optical encoders for position sensing - Ambient light sensors in automotive and consumer electronics - Industrial automation for light detection and control systems - Medical devices for non-invasive optical sensing
Detailed and Complete Alternative Models
Some alternative models to the BPW85C include: - BPW34: A similar phototransistor with a broader spectral range - BPW21R: Designed for high-speed light detection applications - BPW17N: Offers enhanced sensitivity for low-light environments
In conclusion, the BPW85C phototransistor serves as a versatile optoelectronic component with specific advantages and limitations. Its high sensitivity, fast response time, and reliable performance make it a preferred choice for various light sensing and detection applications across different industries.
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Énumérez 10 questions et réponses courantes liées à l'application de BPW85C dans les solutions techniques
What is the BPW85C photodiode used for?
- The BPW85C photodiode is commonly used for light detection and measurement in various technical solutions.
What is the spectral response range of the BPW85C?
- The BPW85C has a spectral response range of approximately 350nm to 1100nm, making it suitable for a wide range of applications.
Can the BPW85C be used for proximity sensing?
- Yes, the BPW85C can be used for proximity sensing applications due to its sensitivity to ambient light.
What are the typical operating conditions for the BPW85C?
- The BPW85C operates well under normal ambient conditions and at temperatures ranging from -40°C to 100°C.
Is the BPW85C sensitive to infrared light?
- Yes, the BPW85C is sensitive to both visible and infrared light, allowing for versatile use in light detection applications.
What is the typical responsivity of the BPW85C?
- The typical responsivity of the BPW85C is around 0.55 A/W at 880nm, providing efficient light-to-electrical signal conversion.
Can the BPW85C be used in automotive applications?
- Yes, the BPW85C can be used in automotive applications such as rain sensors, twilight switches, and other light detection systems.
Does the BPW85C require any external amplification?
- Depending on the specific application, the BPW85C may require external amplification to achieve the desired signal levels.
What are the packaging options available for the BPW85C?
- The BPW85C is available in various package types, including standard through-hole packages and surface-mount packages for easy integration into different designs.
Are there any special considerations for circuit design when using the BPW85C?
- It's important to consider the ambient light conditions, filtering requirements, and signal conditioning when designing circuits using the BPW85C to ensure optimal performance.