SFH 221: Product Overview and Specifications

Introduction

The SFH 221 is a versatile optoelectronic component that belongs to the category of infrared emitters. This product is widely used in various applications due to its unique characteristics and functional features. In this entry, we will provide an overview of the SFH 221, including its basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Basic Information Overview

• Category: Infrared Emitters
• Use: The SFH 221 is utilized for infrared sensing, remote control systems, and proximity sensors.
• Characteristics: It exhibits high radiant intensity, fast switching times, and low forward voltage.
• Package: The SFH 221 is available in a compact and durable package suitable for various mounting options.
• Essence: It emits infrared radiation with precision and reliability.
• Packaging/Quantity: Typically available in reels or trays containing multiple units.

Specifications

• Wavelength: 950 nm
• Radiant Intensity: 70 mW/sr
• Forward Voltage: 1.35 V
• Reverse Voltage: 5 V
• Operating Temperature Range: -40°C to +85°C
• Storage Temperature Range: -40°C to +100°C

Detailed Pin Configuration

The SFH 221 features a standard 3-pin configuration: 1. Anode (+) 2. Cathode (-) 3. No Connection (NC)

Functional Features

• High Radiant Intensity: Ensures strong signal transmission in infrared sensing applications.
• Fast Switching Times: Enables rapid response in remote control systems and proximity sensors.
• Low Forward Voltage: Contributes to energy efficiency and reduced power consumption.

Advantages and Disadvantages

Advantages

• Reliable performance in infrared sensing applications.
• Versatile use in remote control systems and proximity sensors.
• Energy-efficient operation with low forward voltage.

Disadvantages

• Limited reverse voltage tolerance compared to some alternative models.
• Sensitive to electrostatic discharge, requiring careful handling during installation.

Working Principles

The SFH 221 operates based on the principle of converting electrical energy into infrared radiation. When a forward voltage is applied across the anode and cathode pins, the device emits infrared light, which can be utilized for various sensing and control purposes.

Detailed Application Field Plans

The SFH 221 finds extensive application in the following fields: - Infrared Sensing: Used in motion detection systems, optical encoders, and ambient light sensors. - Remote Control Systems: Integrated into consumer electronics for transmitting infrared signals. - Proximity Sensors: Employed in automotive, industrial, and robotics applications for object detection.

Detailed and Complete Alternative Models

For users seeking alternative options, the following models can be considered: 1. SFH 220: Similar characteristics with a slightly different wavelength. 2. SFH 222: Higher radiant intensity and wider operating temperature range. 3. SFH 223: Lower forward voltage and enhanced reverse voltage tolerance.

In conclusion, the SFH 221 offers reliable performance and versatility in various infrared applications, making it a valuable component in the optoelectronics industry.

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