SFH617A-3

series introduction

# SFH617A - 3 Product Series Introduction

## 1. Overview
The SFH617A - 3 product series represents a cutting - edge offering in the field of optoelectronic components. Engineered with precision and innovation, these products are designed to meet the diverse and demanding requirements of modern electronic systems. Whether it's for consumer electronics, industrial automation, or automotive applications, the SFH617A - 3 series provides reliable and high - performance solutions.

## 2. Key Features

### 2.1 High - Sensitivity Photodiodes
At the core of the SFH617A - 3 series are high - sensitivity photodiodes. These photodiodes are capable of detecting even the slightest changes in light intensity. With a wide spectral response range, they can efficiently convert light signals into electrical signals, making them ideal for applications where accurate light detection is crucial. For example, in ambient light sensing applications, the high sensitivity ensures that the device can accurately measure the surrounding light levels, enabling automatic adjustment of display brightness in smartphones and tablets.

### 2.2 Fast Response Time
The series is characterized by its extremely fast response time. This means that the photodiodes can quickly react to changes in light, allowing for real - time monitoring and control. In high - speed communication systems, such as optical data links, the fast response time ensures that data can be transmitted and received accurately without significant delays. It also enables rapid switching in applications like optical encoders, where precise position sensing is required.

### 2.3 Low Dark Current
Dark current refers to the small amount of current that flows through a photodiode in the absence of light. The SFH617A - 3 series features low dark current, which reduces noise and improves the signal - to - noise ratio. This is particularly important in low - light applications, such as night - vision devices or light - sensitive scientific instruments. A low dark current ensures that the device can accurately detect weak light signals without being overwhelmed by background noise.

### 2.4 Compact Design
The components in the SFH617A - 3 series are designed with a compact form factor. This makes them easy to integrate into various electronic devices, especially those with limited space. Whether it's a small wearable device or a densely packed circuit board in an industrial control system, the compact design allows for efficient use of space without sacrificing performance.

### 2.5 High Reliability
These products are built to last. They are manufactured using high - quality materials and advanced production processes, ensuring high reliability and long - term stability. The SFH617A - 3 series can withstand a wide range of environmental conditions, including temperature variations, humidity, and mechanical stress. This makes them suitable for use in harsh industrial and automotive environments.

## 3. Applications

### 3.1 Consumer Electronics
- **Smartphones and Tablets**: The SFH617A - 3 series can be used for ambient light sensing, proximity sensing, and optical touch sensing. Ambient light sensors adjust the display brightness according to the surrounding light conditions, improving the user experience and saving power. Proximity sensors detect the presence of nearby objects, such as when a user holds the phone to their ear during a call, and turn off the display to prevent accidental touches.
- **Wearable Devices**: In smartwatches and fitness trackers, these components can be used for heart rate monitoring through photoplethysmography (PPG). The high - sensitivity photodiodes can detect the changes in blood volume in the skin, allowing for accurate heart rate measurement.

### 3.2 Industrial Automation
- **Optical Encoders**: Optical encoders are used to measure the position, speed, and direction of rotating or linear objects. The fast response

Images for reference

4-DIP

Image Preview

Image Preview

Datasheets

• SFH617A
• Option Information
• PDF 3

Partlist