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SFH6206-2 from SIEMENS

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SFH6206-2

Manufacturer: SIEMENS, INFINEON

Optocouplers

Partnumber Manufacturer Quantity Availability
SFH6206-2,SFH62062 SIEMENS, INFINEON 1480 In Stock

Description and Introduction

Optocouplers The **SFH6206-2** is an optocoupler manufactured by **SIEMENS** (now part of **Infineon Technologies**). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Type:** Phototransistor Optocoupler  
- **Isolation Voltage:** 5.3 kV (RMS)  
- **Current Transfer Ratio (CTR):** 20% to 320% (at 5 mA input current)  
- **Input Forward Current (IF):** 60 mA (max)  
- **Output Collector-Emitter Voltage (VCEO):** 70 V  
- **Switching Time (Turn-on/Turn-off):** 3 µs / 4 µs (typical)  
- **Operating Temperature Range:** -55°C to +100°C  
- **Package:** DIP-6 (Dual In-line Package)  

### **Descriptions:**  
- Provides **galvanic isolation** between input and output circuits.  
- Contains an **infrared LED** (input) coupled with a **phototransistor** (output).  
- Designed for **signal transmission** in industrial, automotive, and consumer applications.  

### **Features:**  
- **High isolation voltage** (5.3 kV RMS) for safety compliance.  
- **Wide CTR range** for flexibility in circuit design.  
- **Fast switching speed** suitable for digital signal isolation.  
- **Compact DIP-6 package** for easy PCB mounting.  

This optocoupler is commonly used in **power supplies, motor controls, and communication interfaces** where electrical isolation is required.  

(Note: SIEMENS' optoelectronics division was transferred to **Infineon Technologies**, but the part may still be referenced under the SIEMENS name in legacy documentation.)

Application Scenarios & Design Considerations

Optocouplers

Alternative Part Number

  • PC817X2NSZ0F --: Industry-standard optocoupler with dual-channel CTR binning, widely available and pin-compatible with the SFH6206-2 in most isolated feedback circuits.
  • LTV-826S --: Dual-channel phototransistor optocoupler with similar CTR and isolation ratings, a common drop-in replacement for Siemens SFH6206 series.
  • TLP620-2 --: Dual-channel optocoupler with comparable current transfer ratio and 5 kV isolation, suitable for AC/DC input isolation applications.
  • LTV-814 --: AC-input phototransistor optocoupler with similar CTR and isolation ratings, widely available and pin-compatible in many designs.
  • PC814 --: AC-input optocoupler offering comparable current transfer ratio and isolation voltage, suitable as a functional replacement.
  • H11AA1 --: Dual AC-input phototransistor optocoupler with similar isolation and CTR characteristics, commonly used as an alternative.

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