BPW82 Phototransistor
Product Overview
Category
BPW82 belongs to the category of phototransistors.
Use
It is used for detecting and amplifying light signals in various electronic applications.
Characteristics
- High sensitivity to light
- Fast response time
- Low dark current
- Wide spectral range
Package
The BPW82 is typically available in a TO-18 package.
Essence
The essence of BPW82 lies in its ability to convert light energy into electrical signals with high efficiency.
Packaging/Quantity
It is commonly sold in reels or trays containing multiple units, with specific quantities varying by manufacturer.
Specifications
- Spectral Range: 400nm to 1100nm
- Collector-Emitter Voltage: 32V
- Collector Current: 50mA
- Power Dissipation: 200mW
- Rise Time: 2.5μs
- Fall Time: 15μs
Detailed Pin Configuration
The BPW82 phototransistor typically has three pins: 1. Emitter (E) 2. Base (B) 3. Collector (C)
Functional Features
- High sensitivity to light allows for accurate detection in low-light conditions.
- Fast response time enables quick signal amplification and processing.
- Low dark current minimizes noise interference in signal detection.
Advantages
- Excellent sensitivity across a wide spectral range.
- Fast response time for rapid signal processing.
- Low dark current reduces background noise.
Disadvantages
- Susceptible to damage from excessive light exposure.
- Limited to specific spectral ranges, may not be suitable for all applications.
Working Principles
When exposed to light, the BPW82 phototransistor generates electron-hole pairs, leading to an increase in collector current proportional to the incident light intensity.
Detailed Application Field Plans
Light Sensing
BPW82 can be used in light-sensing applications such as ambient light detection in display devices, automatic lighting control, and optical encoders.
Remote Control Systems
Infrared remote control systems utilize BPW82 for receiving and decoding infrared signals from remote controls.
Industrial Automation
In industrial automation, BPW82 is employed for detecting objects, monitoring production processes, and controlling machinery based on light signals.
Detailed and Complete Alternative Models
- BPW85: Similar spectral range with enhanced sensitivity
- BPW88: Higher speed and lower dark current for precision applications
- BPW96C: Enhanced sensitivity and extended spectral range for specialized applications
In conclusion, the BPW82 phototransistor offers high sensitivity, fast response time, and low dark current, making it suitable for various light sensing and signal amplification applications across different industries.
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Orodhesha maswali na majibu 10 ya kawaida yanayohusiana na utumiaji wa BPW82 katika suluhu za kiufundi
What is BPW82?
- BPW82 is a silicon photodiode with a spectral sensitivity range in the visible and near-infrared spectrum.
What are the typical applications of BPW82?
- BPW82 is commonly used in light barrier systems, industrial electronics, and optical encoders.
What is the spectral sensitivity range of BPW82?
- The spectral sensitivity range of BPW82 is approximately 430nm to 1100nm.
What is the responsivity of BPW82?
- The responsivity of BPW82 is typically around 0.55 A/W at 950nm.
How does BPW82 perform in low-light conditions?
- BPW82 has good performance in low-light conditions due to its high sensitivity in the near-infrared spectrum.
Can BPW82 be used for position sensing?
- Yes, BPW82 can be used for position sensing in applications such as rotary encoders and linear encoders.
What are the key features of BPW82 for industrial applications?
- BPW82 offers high reliability, fast response times, and a wide operating temperature range, making it suitable for industrial environments.
Does BPW82 require any special handling during assembly?
- BPW82 should be handled carefully to avoid damage to the sensitive photodiode element during assembly.
What are the recommended operating conditions for BPW82?
- The recommended operating conditions for BPW82 include a forward voltage of around 20V, a reverse voltage of 30V, and an operating temperature range of -40°C to 100°C.
Are there any specific considerations for circuit design when using BPW82?
- When designing circuits with BPW82, it's important to consider the ambient light conditions, signal amplification, and noise reduction techniques to optimize performance.