IRD3903R Product Overview

Introduction

The IRD3903R is a versatile electronic component that belongs to the category of infrared phototransistors. This device is widely used in various applications due to its unique characteristics and functional features. In this entry, we will provide an in-depth overview of the IRD3903R, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Infrared Phototransistor
• Use: Detection of infrared light in various electronic circuits and systems
• Characteristics: High sensitivity to infrared light, low dark current, fast response time
• Package: TO-18 metal can package
• Essence: Reliable detection of infrared signals in electronic devices
• Packaging/Quantity: Typically available in reels or tubes containing multiple units

Specifications

• Peak Wavelength: 940nm
• Collector-Emitter Voltage (VCEO): 30V
• Emitter-Collector Voltage (VECO): 5V
• Collector Current (IC): 50mA
• Power Dissipation (PD): 100mW
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The IRD3903R features a standard TO-18 metal can package with three leads: 1. Collector (C) 2. Emitter (E) 3. Base (B)

Functional Features

• High sensitivity to infrared light
• Low dark current for improved signal-to-noise ratio
• Fast response time for real-time detection applications

Advantages and Disadvantages

Advantages

• Reliable detection of infrared signals
• Low power consumption
• Compact and durable package

Disadvantages

• Limited operating temperature range
• Sensitivity to ambient light interference

Working Principles

The IRD3903R operates based on the principle of photoconductivity, where incident infrared light triggers the flow of current between the collector and emitter terminals. This change in current is utilized for various detection and control purposes in electronic circuits.

Detailed Application Field Plans

The IRD3903R finds extensive use in the following application fields: - Infrared remote control systems - Proximity sensors - Object detection in automation systems - Optical encoders - Light curtains for safety systems

Detailed and Complete Alternative Models

For users seeking alternative options, the following models can be considered as substitutes for the IRD3903R: - IRD3904R: Similar specifications with enhanced sensitivity - IRD3902R: Lower sensitivity with wider operating temperature range - IRD3905R: Higher power dissipation capability for rugged environments

In conclusion, the IRD3903R offers reliable infrared detection capabilities with specific considerations for its operating conditions and potential alternatives.

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