BPX 38-3: Product Overview and Specifications

Introduction

The BPX 38-3 is a photodiode belonging to the category of optoelectronic components. 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 BPX 38-3, including its basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Optoelectronic Components
• Use: The BPX 38-3 is primarily used for light detection and signal conversion in electronic circuits.
• Characteristics: This photodiode exhibits high sensitivity to light in the visible and near-infrared spectrum, making it suitable for a wide range of applications.
• Package: The BPX 38-3 is typically housed in a hermetically sealed TO-18 package, providing protection from environmental factors.
• Essence: The essence of the BPX 38-3 lies in its ability to convert incident light into electrical signals with high efficiency.
• Packaging/Quantity: The photodiode is commonly available in reels or trays containing multiple units.

Specifications

• Wavelength Range: 400nm to 1100nm
• Responsivity: 0.45 A/W at 900nm
• Dark Current: 2nA
• Reverse Voltage: 20V
• Active Area Diameter: 3mm
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The BPX 38-3 features a two-pin configuration: 1. Anode (A): This pin is connected to the positive terminal of the circuit and is responsible for collecting the photocurrent generated by incident light. 2. Cathode (K): The cathode pin is connected to the negative terminal and serves as the return path for the photocurrent.

Functional Features

• High Sensitivity: The BPX 38-3 offers exceptional sensitivity to light, enabling accurate detection even in low-light conditions.
• Fast Response Time: With a rapid response time, this photodiode is capable of capturing fast-changing light signals.
• Low Dark Current: The photodiode maintains a low dark current, minimizing noise in the output signal.

Advantages and Disadvantages

Advantages

• Wide Wavelength Range: The BPX 38-3 covers a broad spectrum, expanding its applicability across different light sources.
• Compact Size: Its small form factor allows for integration into space-constrained designs.
• Reliable Performance: The photodiode delivers consistent and reliable performance over extended periods.

Disadvantages

• Temperature Sensitivity: The device's characteristics may exhibit some sensitivity to temperature variations, requiring careful thermal management in certain applications.

Working Principles

The BPX 38-3 operates based on the principle of the internal photoelectric effect. When photons strike the active area of the photodiode, electron-hole pairs are generated, resulting in a photocurrent proportional to the incident light intensity.

Detailed Application Field Plans

The BPX 38-3 finds extensive use in various applications, including: - Ambient Light Sensing in Consumer Electronics - Optical Communication Systems - Industrial Automation for Light Detection - Medical Instrumentation for Photodetection

Detailed and Complete Alternative Models

• BPW34: Similar to the BPX 38-3, the BPW34 offers high sensitivity and a wide spectral range, making it a suitable alternative for many applications.
• TEMT6000: This ambient light sensor provides comparable performance and can be used as an alternative in certain light detection applications.

In conclusion, the BPX 38-3 photodiode stands as a versatile component with a wide range of applications, offering high sensitivity, fast response, and reliable performance. Its specifications and functional features make it a valuable asset in the field of optoelectronics.

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