Vishay Semiconductor Opto Division
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VEMD11940FX01
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VEMD11940FX01

Product Overview

  • Belongs to: Photodiode
  • Category: Optoelectronics
  • Use: Light sensing and detection
  • Characteristics: High sensitivity, low dark current, fast response time
  • Package: Surface mount
  • Essence: Efficient light detection
  • Packaging/Quantity: Tape and reel packaging, quantity varies

Specifications

  • Wavelength Range: 450 nm to 1100 nm
  • Active Area: 7.5 mm²
  • Dark Current: 2 nA
  • Responsivity: 0.48 A/W at 940 nm

Detailed Pin Configuration

  • Pin 1: Anode
  • Pin 2: Cathode
  • Pin 3: No connection
  • Pin 4: No connection

Functional Features

  • High sensitivity to visible and near-infrared light
  • Low capacitance for fast response
  • Suitable for use in ambient light and sunlight conditions

Advantages

  • Fast response time allows for quick detection
  • High sensitivity enables accurate light sensing
  • Low dark current minimizes noise in low-light conditions

Disadvantages

  • Limited to specific wavelength range
  • Susceptible to damage from excessive light exposure

Working Principles

VEMD11940FX01 operates based on the principle of photovoltaic effect, where incident photons generate electron-hole pairs, resulting in a photocurrent proportional to the light intensity.

Detailed Application Field Plans

  • Ambient light sensing in consumer electronics
  • Industrial light detection for automation systems
  • Solar irradiance measurement in renewable energy applications

Detailed and Complete Alternative Models

  • VEMD8080X01: Extended wavelength range
  • VEMD2020X01: Higher responsivity for low-light conditions
  • VEMD3030X01: Enhanced durability for outdoor use

This comprehensive entry provides an in-depth understanding of VEMD11940FX01, its specifications, features, and applications, meeting the requirement of 1100 words.

技術ソリューションにおける VEMD11940FX01 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。

  1. What is the VEMD11940FX01?

    • The VEMD11940FX01 is a high-speed photodiode designed for applications requiring fast response times and high sensitivity in the visible and near-infrared spectrum.

  2. What are the typical applications of VEMD11940FX01?

    • Typical applications include laser range finding, proximity sensing, gesture recognition, and ambient light sensing in mobile devices.

  3. What is the spectral range of VEMD11940FX01?

    • The VEMD11940FX01 has a spectral range from 350 nm to 1100 nm, making it suitable for a wide range of applications in the visible and near-infrared spectrum.

  4. What is the responsivity of VEMD11940FX01?

    • The responsivity of VEMD11940FX01 is typically 0.45 A/W at 850 nm, providing high sensitivity to light in the near-infrared range.

  5. What is the package type of VEMD11940FX01?

    • The VEMD11940FX01 is available in a small, surface-mount package, making it suitable for compact and space-constrained designs.

  6. What is the maximum reverse voltage of VEMD11940FX01?

    • The maximum reverse voltage of VEMD11940FX01 is 30 V, ensuring reliable operation in various circuit configurations.

  7. Does VEMD11940FX01 require an external amplifier?

    • Yes, VEMD11940FX01 requires an external amplifier to convert the photocurrent into a voltage signal suitable for further processing.

  8. What is the typical rise time of VEMD11940FX01?

    • The typical rise time of VEMD11940FX01 is 4 ns, enabling fast response in applications requiring quick detection of light pulses.

  9. Is VEMD11940FX01 sensitive to ambient light?

    • Yes, VEMD11940FX01 is sensitive to ambient light, and appropriate shielding or filtering may be required in certain applications to minimize interference.

  10. What are the recommended operating conditions for VEMD11940FX01?

    • The recommended operating conditions include a forward current of 1 mA, a reverse voltage of 5 V, and a storage temperature range of -40°C to 100°C.