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SFH6156-1T from SIEMENS

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SFH6156-1T

Manufacturer: SIEMENS, VISHAY, INFINEON

Optocoupler, Phototransistor Output, High Reliability, 5300 VRMS

Partnumber Manufacturer Quantity Availability
SFH6156-1T,SFH61561T SIEMENS, VISHAY, INFINEON 1596 In Stock

Description and Introduction

Optocoupler, Phototransistor Output, High Reliability, 5300 VRMS The **SFH6156-1T** is an optocoupler manufactured by **SIEMENS** (now part of **Infineon Technologies**). Below are its specifications, descriptions, and features based on factual data:  

### **Specifications:**  
- **Type:** Phototransistor Optocoupler  
- **Isolation Voltage:** 5300 Vrms (min)  
- **Collector-Emitter Voltage (VCEO):** 70 V  
- **Collector Current (IC):** 50 mA  
- **Current Transfer Ratio (CTR):** 50% (min) at IF = 5 mA  
- **Input Forward Current (IF):** 60 mA (max)  
- **Forward Voltage (VF):** 1.25 V (typ) at IF = 10 mA  
- **Response Time (tON / tOFF):** 3 μs / 4.7 μs (typ)  
- **Operating Temperature Range:** -55°C to +100°C  
- **Package:** DIP-4 (Through-Hole)  

### **Description:**  
- The **SFH6156-1T** is a high-reliability optocoupler designed for signal isolation in industrial, automotive, and communication applications.  
- It consists of an **infrared LED** optically coupled to a **silicon phototransistor** in a compact 4-pin DIP package.  
- Provides **galvanic isolation** between input and output circuits, preventing ground loops and noise interference.  

### **Features:**  
- **High Isolation Voltage (5300 Vrms)**  
- **Fast Switching Speed** (suitable for digital signal transmission)  
- **Wide Operating Temperature Range** (-55°C to +100°C)  
- **High Current Transfer Ratio (CTR)** for efficient signal transmission  
- **Compact DIP-4 Package** for easy PCB mounting  
- **Compliant with industrial and automotive standards**  

This optocoupler is commonly used in **power supplies, motor control, PLCs, and isolated communication interfaces**.  

(Note: Always refer to the latest datasheet for updated specifications.)

Application Scenarios & Design Considerations

Optocoupler, Phototransistor Output, High Reliability, 5300 VRMS

Alternative Part Number

  • PC817X1NSZ0F --: Industry-standard optocoupler with similar CTR and isolation ratings, widely available and pin-compatible in most circuits.
  • LTV-817S-TA1 --: Low-cost single-channel phototransistor optocoupler with comparable CTR range and 5 kV isolation, suitable drop-in replacement.
  • EL817S1(C)-V --: Equivalent single-channel optocoupler with similar current transfer ratio and isolation voltage, good second-source option.
  • EL817 --: Low-cost optocoupler with comparable current transfer ratio and 5kV isolation, suitable drop-in replacement for general switching applications.
  • LTV-817 --: Common optocoupler alternative with similar CTR binning and isolation voltage, good second-source option for the SFH6156-1T.

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