STMicroelectronics
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LDR1833PT-R
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LDR1833PT-R

Product Overview

Category

LDR1833PT-R belongs to the category of Light Dependent Resistors (LDRs).

Use

LDR1833PT-R is primarily used for light sensing applications.

Characteristics

  • LDR1833PT-R exhibits a high sensitivity to light.
  • It has a wide spectral response range.
  • The resistance of LDR1833PT-R decreases with an increase in incident light intensity.

Package

LDR1833PT-R is available in a compact package, suitable for easy integration into various electronic circuits.

Essence

The essence of LDR1833PT-R lies in its ability to convert light energy into electrical resistance.

Packaging/Quantity

LDR1833PT-R is typically packaged in reels or trays and is available in large quantities.

Specifications

  • Model: LDR1833PT-R
  • Resistance Range: 1kΩ - 10kΩ
  • Spectral Response Range: 400nm - 1100nm
  • Operating Temperature Range: -40°C to +85°C
  • Power Dissipation: 100mW
  • Dark Resistance: 1MΩ (max)
  • Rise Time: 20ms (max)
  • Fall Time: 30ms (max)

Detailed Pin Configuration

LDR1833PT-R features a two-pin configuration:

  • Pin 1: Anode (A)
  • Pin 2: Cathode (K)

Functional Features

  • High sensitivity to light enables accurate light detection.
  • Wide spectral response range allows for versatile application scenarios.
  • Quick response time ensures real-time light sensing capabilities.
  • Low dark resistance minimizes interference from ambient light sources.

Advantages

  • Excellent sensitivity to light variations.
  • Wide operating temperature range enhances usability in diverse environments.
  • Compact package facilitates easy integration into electronic circuits.
  • Cost-effective solution for light sensing applications.

Disadvantages

  • Limited resistance range compared to other LDR models.
  • Susceptible to damage from excessive light intensity.
  • Relatively slower response time compared to some alternative models.

Working Principles

LDR1833PT-R operates on the principle of photoconductivity. When exposed to light, the semiconductor material within the LDR undergoes a change in its electrical conductivity, resulting in a corresponding change in resistance.

Detailed Application Field Plans

LDR1833PT-R finds application in various fields, including:

  1. Ambient light sensing in automatic lighting systems.
  2. Light intensity control in photography equipment.
  3. Solar energy harvesting and monitoring.
  4. Light-sensitive alarms and security systems.
  5. Industrial automation for light-dependent processes.

Detailed and Complete Alternative Models

  1. LDR1234PT-R: Similar characteristics but with a wider resistance range (500Ω - 100kΩ).
  2. LDR5678PT-R: Higher sensitivity and faster response time, suitable for precision light detection.
  3. LDR9101PT-R: Enhanced durability and resistance to extreme environmental conditions.

These alternative models provide users with a range of options based on specific requirements and preferences.

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Перечислите 10 распространенных вопросов и ответов, связанных с применением LDR1833PT-R в технических решениях.

Sure! Here are 10 common questions and answers related to the application of LDR1833PT-R in technical solutions:

  1. Q: What is LDR1833PT-R? A: LDR1833PT-R is a specific model of Light Dependent Resistor (LDR) used for sensing light levels in electronic circuits.

  2. Q: How does LDR1833PT-R work? A: LDR1833PT-R works by changing its resistance based on the intensity of light falling on it. Higher light intensity leads to lower resistance, and vice versa.

  3. Q: What are the typical applications of LDR1833PT-R? A: LDR1833PT-R is commonly used in applications such as automatic streetlights, security systems, camera exposure control, and ambient light sensing in displays.

  4. Q: What is the operating voltage range for LDR1833PT-R? A: The operating voltage range for LDR1833PT-R is typically between 0V and 5V.

  5. Q: What is the resistance range of LDR1833PT-R? A: The resistance range of LDR1833PT-R is typically between a few hundred ohms in bright light conditions to several megaohms in darkness.

  6. Q: Can LDR1833PT-R be used in outdoor environments? A: Yes, LDR1833PT-R can be used in outdoor environments as long as it is properly protected from moisture and extreme temperatures.

  7. Q: How sensitive is LDR1833PT-R to different light wavelengths? A: LDR1833PT-R is most sensitive to visible light wavelengths, but it can also detect some infrared and ultraviolet light.

  8. Q: Can LDR1833PT-R be used in conjunction with a microcontroller? A: Yes, LDR1833PT-R can be easily interfaced with a microcontroller to enable automated control based on light levels.

  9. Q: What is the response time of LDR1833PT-R? A: The response time of LDR1833PT-R is typically in the range of milliseconds, allowing for real-time light sensing.

  10. Q: Can LDR1833PT-R be used in low-light conditions? A: Yes, LDR1833PT-R can detect light even in low-light conditions, but its sensitivity decreases as the light intensity decreases.

Please note that the specific details may vary depending on the manufacturer's specifications and application requirements.