CDS250: Photoconductive Cell

Introduction

The CDS250 is a photoconductive cell that belongs to the category of light-sensitive sensors. It is commonly used in various electronic devices and systems to detect and measure light intensity. This entry provides an overview of the CDS250, 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-sensitive sensor
• Use: Detecting and measuring light intensity
• Characteristics: High sensitivity to light, compact size, low power consumption
• Package: Small cylindrical shape
• Essence: Utilizes photoconductivity to change resistance based on light exposure
• Packaging/Quantity: Typically sold in packs of 10 or 100 units

Specifications

• Operating Voltage: 5V
• Operating Temperature: -40°C to 85°C
• Spectral Response Range: 400nm to 1100nm
• Dark Resistance: 1 MΩ (min)
• Light Resistance: 10 KΩ (max)

Detailed Pin Configuration

The CDS250 typically has two pins: 1. Pin 1: Anode (+) 2. Pin 2: Cathode (-)

Functional Features

• High sensitivity to light variations
• Rapid response time
• Low power consumption
• Compact design for easy integration into various electronic systems

Advantages and Disadvantages

Advantages

• Precise light intensity detection
• Wide spectral response range
• Low cost
• Simple interface with electronic circuits

Disadvantages

• Susceptible to temperature variations
• Limited accuracy in extreme lighting conditions

Working Principles

The CDS250 operates based on the principle of photoconductivity. When exposed to light, the semiconductor material within the cell undergoes a change in resistance, allowing it to be used as a light-sensitive resistor. This change in resistance is utilized to measure the intensity of incident light.

Detailed Application Field Plans

The CDS250 finds extensive use in various applications, including: - Ambient light sensing in consumer electronics - Automatic street light control systems - Photographic light meters - Industrial light monitoring and control systems - Solar power optimization systems

Detailed and Complete Alternative Models

Several alternative models to the CDS250 include: - CDS550: Higher sensitivity variant - CDS150: Lower cost variant with reduced spectral response range - CDS350: Enhanced temperature-resistant variant

In conclusion, the CDS250 photoconductive cell serves as a crucial component in light-sensing applications, offering high sensitivity and reliability. Its compact design and cost-effectiveness make it a popular choice for various electronic systems requiring light intensity detection and measurement.

[Word Count: 411]