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SFH655A from INFINEON

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SFH655A

Manufacturer: INFINEON

Optocoupler, Photodarlington Output

Partnumber Manufacturer Quantity Availability
SFH655A INFINEON 100 In Stock

Description and Introduction

Optocoupler, Photodarlington Output The SFH655A is an optocoupler manufactured by **Infineon Technologies**. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Isolation Voltage:** 5300 Vrms (min)  
- **Current Transfer Ratio (CTR):** 50% (min) at IF = 5 mA, VCE = 5 V  
- **Collector-Emitter Voltage (VCEO):** 70 V  
- **Collector Current (IC):** 50 mA  
- **Forward Current (IF):** 60 mA (max)  
- **Forward Voltage (VF):** 1.25 V (typ) at IF = 10 mA  
- **Switching Time (tON / tOFF):** 3 µs / 4 µs (typ)  
- **Operating Temperature Range:** -55°C to +100°C  

### **Description:**  
The SFH655A is a **high-speed optocoupler** with a **GaAs infrared LED** optically coupled to a **silicon phototransistor**. It provides **electrical isolation** between input and output circuits, making it suitable for applications requiring noise immunity and safety compliance.  

### **Features:**  
- **High isolation voltage (5300 Vrms)**  
- **Fast switching speed** (suitable for digital signal transmission)  
- **Compact DIP-6 package**  
- **Wide operating temperature range**  
- **Compliant with safety standards** (UL, CSA, VDE)  

This optocoupler is commonly used in **power supply feedback, industrial controls, and communication interfaces** where electrical isolation is critical.  

(Source: Infineon datasheet for SFH655A)

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