BPW 21

Product Overview

BPW 21 is a photodiode belonging to the category of optoelectronic components. It is commonly used for light detection and is characterized by its high sensitivity to light, compact package, and versatile applications. The photodiode is typically available in various packaging options and quantities to suit different requirements.

Basic Information

Category: Optoelectronic Component
Use: Light Detection
Characteristics: High Sensitivity, Compact Package
Package: Various Options Available
Essence: Light Detection
Packaging/Quantity: Customizable

Specifications

Type: Photodiode
Spectral Range: 400nm - 1100nm
Active Area: 7.5mm²
Dark Current: 2nA
Responsivity: 0.45 A/W

Detailed Pin Configuration

The BPW 21 photodiode typically consists of three pins: anode, cathode, and case. The anode and cathode are used for electrical connections, while the case serves as the ground connection.

Functional Features

High sensitivity to light in the spectral range of 400nm - 1100nm
Low dark current for improved signal-to-noise ratio
Compact and versatile design for easy integration into various systems

Advantages and Disadvantages

Advantages

High sensitivity to a broad range of wavelengths
Low dark current for accurate light detection
Compact package for easy integration

Disadvantages

Susceptible to noise in high ambient light conditions
Limited to specific spectral range

Working Principles

BPW 21 operates based on the principle of converting incident light into electrical current. When exposed to light within its spectral range, the photodiode generates a photocurrent proportional to the light intensity.

Detailed Application Field Plans

BPW 21 finds extensive use in various applications, including: - Light meters - Optical communication systems - Industrial automation - Medical devices - Consumer electronics

Detailed and Complete Alternative Models

Several alternative models to BPW 21 include: - BPW 20: Similar characteristics with a different spectral range - BPW 24: Higher responsivity and broader spectral range - BPW 34: Enhanced sensitivity and lower dark current

In conclusion, BPW 21 is a versatile photodiode with high sensitivity and compact design, making it suitable for a wide range of light detection applications.

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