Vishay Semiconductor Opto Division
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BPW85
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BPW85

Product Overview

Category

BPW85 belongs to the category of photodiodes.

Use

It is used for light detection and optical sensing applications.

Characteristics

  • Spectral range: 320nm to 1100nm
  • High sensitivity
  • Fast response time
  • Low dark current

Package

The BPW85 is typically available in a hermetically sealed TO-5 package.

Essence

The essence of BPW85 lies in its high sensitivity and wide spectral range, making it suitable for various light detection applications.

Packaging/Quantity

It is commonly sold in reels or trays with varying quantities depending on the supplier.

Specifications

  • Spectral Range: 320nm to 1100nm
  • Dark Current: 100nA
  • Responsivity: 0.55A/W at 850nm
  • Rise Time: 15ns
  • Capacitance: 25pF

Detailed Pin Configuration

The BPW85 typically has three pins: 1. Anode 2. Cathode 3. Case (connected to cathode)

Functional Features

  • High sensitivity across a wide spectral range
  • Fast response time for rapid signal detection
  • Low dark current for accurate low-light measurements

Advantages and Disadvantages

Advantages

  • Wide spectral range
  • High sensitivity
  • Fast response time

Disadvantages

  • Higher capacitance compared to some other photodiodes
  • Susceptible to damage from excessive light exposure

Working Principles

The BPW85 operates based on the principle of the internal photoelectric effect. When photons strike the diode, electron-hole pairs are generated, creating a photocurrent that is proportional to the incident light intensity.

Detailed Application Field Plans

Light Sensing

BPW85 can be used in light sensing applications such as ambient light detection in electronic devices, automatic lighting control, and light beam interruption detection in industrial equipment.

Optical Communication

In optical communication systems, BPW85 can be utilized for receiving optical signals and converting them into electrical signals for further processing.

Medical Instruments

The photodiode can also be employed in medical instruments for non-invasive blood oxygen level monitoring and pulse oximetry.

Detailed and Complete Alternative Models

Some alternative models to BPW85 include: - BPW34 - BPW21 - BPW17

These alternatives offer similar functionality and characteristics, providing options for different design requirements and cost considerations.

In conclusion, BPW85 is a versatile photodiode with a wide spectral range, high sensitivity, and fast response time, making it suitable for various light detection and optical sensing applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací BPW85 v technických řešeních

  1. What is BPW85?

    • BPW85 is a silicon photodiode that is sensitive to visible and near-infrared light.

  2. What are the typical applications of BPW85?

    • BPW85 is commonly used in light sensing applications such as ambient light detection, industrial automation, and optical encoding.

  3. What is the spectral range of sensitivity for BPW85?

    • The spectral range of sensitivity for BPW85 is typically from 350nm to 1100nm.

  4. What is the responsivity of BPW85?

    • The responsivity of BPW85 is approximately 0.55 A/W at 880nm.

  5. How does BPW85 perform in low-light conditions?

    • BPW85 has good performance in low-light conditions due to its high sensitivity to near-infrared light.

  6. Can BPW85 be used in automotive applications?

    • Yes, BPW85 can be used in automotive applications for ambient light sensing and automatic headlight control.

  7. What are the key features of BPW85 for industrial automation?

    • BPW85 offers fast response times, high sensitivity, and a wide spectral range, making it suitable for industrial automation tasks such as object detection and position sensing.

  8. Does BPW85 require any special handling during assembly?

    • BPW85 should be handled with care to avoid damage to the sensitive photodiode surface, and proper ESD precautions should be followed during assembly.

  9. What are the typical output characteristics of BPW85?

    • The output of BPW85 is typically a current signal proportional to the incident light intensity, which can be easily interfaced with amplifiers or microcontrollers.

  10. Are there any environmental considerations when using BPW85?

    • BPW85 may be sensitive to temperature and humidity, so appropriate environmental controls should be considered for consistent performance.