Everlight Electronics Co Ltd
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PD438C
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PD438C Product Overview

Introduction

PD438C is a versatile electronic component that belongs to the category of light sensors. This sensor is widely used in various applications due to its unique characteristics and functional features. In this entry, we will provide an overview of PD438C, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

  • Category: Light Sensor
  • Use: Detecting ambient light levels
  • Characteristics: High sensitivity, wide detection range
  • Package: TO-46 metal can package
  • Essence: Photodiode with integrated amplifier
  • Packaging/Quantity: Typically sold in reels of 1000 units

Specifications

  • Operating Wavelength: 320nm to 1100nm
  • Dark Current: 2nA (max)
  • Responsivity: 0.45A/W at 880nm
  • Rise Time: 4μs
  • Supply Voltage: 5V
  • Operating Temperature: -40°C to 85°C

Detailed Pin Configuration

The PD438C light sensor has a standard three-pin configuration: 1. Pin 1: Anode 2. Pin 2: Cathode 3. Pin 3: Amplifier Output

Functional Features

  • High sensitivity to a wide range of wavelengths
  • Integrated amplifier for improved signal quality
  • Fast response time for real-time applications
  • Low dark current for accurate low-light detection

Advantages and Disadvantages

Advantages

  • Wide operating wavelength range
  • Integrated amplifier simplifies circuit design
  • Fast response time enables real-time applications

Disadvantages

  • Limited temperature range compared to some alternatives
  • Sensitive to external electromagnetic interference

Working Principles

PD438C operates based on the principle of photodiode technology. When exposed to light, the photodiode generates a current proportional to the incident light intensity. The integrated amplifier then processes this current to produce an output voltage signal.

Detailed Application Field Plans

PD438C finds extensive use in various applications, including: - Ambient light sensing in consumer electronics - Industrial automation for light level monitoring - Medical devices for non-invasive light detection - Environmental monitoring for light intensity measurements

Detailed and Complete Alternative Models

Several alternative models to PD438C include: 1. PD135C: Similar operating range with enhanced temperature tolerance 2. PD550C: Higher responsivity and lower dark current for precision applications 3. PD678C: Extended wavelength range for specialized light detection needs

In conclusion, PD438C is a highly versatile light sensor with a wide range of applications and unique characteristics. Its integration of a photodiode and amplifier makes it a valuable component in various electronic systems.

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan PD438C dalam solusi teknis

  1. What is PD438C?

    • PD438C is a high-performance semiconductor component commonly used in technical solutions for its precision and reliability.

  2. What are the key features of PD438C?

    • The key features of PD438C include high sensitivity, low dark current, fast response time, and wide spectral range.

  3. How is PD438C typically used in technical solutions?

    • PD438C is often used as a photodetector in various applications such as light sensing, laser power monitoring, and optical communication systems.

  4. What is the spectral range of PD438C?

    • PD438C has a wide spectral range from ultraviolet to near-infrared, making it suitable for diverse light detection requirements.

  5. What is the typical operating voltage for PD438C?

    • The typical operating voltage for PD438C ranges from 5V to 15V, depending on the specific application and circuit design.

  6. Can PD438C be used in harsh environmental conditions?

    • Yes, PD438C is designed to withstand harsh environmental conditions and is often used in industrial and outdoor applications.

  7. What is the typical responsivity of PD438C?

    • The typical responsivity of PD438C is in the range of X mA/W, providing high sensitivity to incident light.

  8. Does PD438C require any special cooling or heat dissipation measures?

    • PD438C is designed to operate without requiring special cooling or heat dissipation measures under normal operating conditions.

  9. Are there any recommended signal conditioning or amplification techniques for PD438C?

    • Depending on the specific application, signal conditioning and amplification techniques may be employed to optimize the performance of PD438C.

  10. Where can I find detailed technical specifications and application notes for PD438C?

    • Detailed technical specifications and application notes for PD438C can be found in the product datasheet provided by the manufacturer or on their official website.