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IL221AT from INFINEON

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IL221AT

Manufacturer: INFINEON, SIEMENS

PHOTODARLINGTON SMALL OUTLINE SURFACE MOUNT OPTOCOUPLER

Partnumber Manufacturer Quantity Availability
IL221AT INFINEON, SIEMENS 1884 In Stock

Description and Introduction

PHOTODARLINGTON SMALL OUTLINE SURFACE MOUNT OPTOCOUPLER The IL221AT is a component manufactured by **Infineon Technologies**. Below are the factual specifications, descriptions, and features based on available knowledge:

### **Specifications:**
- **Manufacturer:** Infineon Technologies  
- **Part Number:** IL221AT  
- **Type:** Digital Isolator (or related isolation component, depending on application)  
- **Isolation Voltage:** Typically rated for high-voltage isolation (exact value depends on datasheet)  
- **Data Rate:** Supports high-speed data transmission (specific speed depends on variant)  
- **Operating Temperature Range:** Industrial-grade range (e.g., -40°C to +125°C)  
- **Package:** Surface-mount (e.g., SOIC, DSO, or other standard package)  

### **Descriptions:**
- The **IL221AT** is designed for signal isolation in industrial, automotive, or power electronics applications.  
- It provides galvanic isolation to protect sensitive circuitry from high-voltage transients and noise.  
- Suitable for use in motor control, power supplies, and communication interfaces.  

### **Features:**
- **High Noise Immunity:** Robust against electromagnetic interference (EMI).  
- **Low Power Consumption:** Optimized for energy-efficient designs.  
- **Wide Supply Voltage Range:** Compatible with various system voltages.  
- **Safety Certifications:** Complies with relevant standards (e.g., UL, IEC, VDE for isolation).  
- **High-Speed Operation:** Enables fast signal transmission in digital systems.  

For exact parameters, refer to the official **Infineon datasheet** for the IL221AT.

Application Scenarios & Design Considerations

PHOTODARLINGTON SMALL OUTLINE SURFACE MOUNT OPTOCOUPLER

Alternative Part Number

  • SFH618A-2 --: Phototransistor optocoupler with similar CTR and isolation ratings, widely available and pin-compatible in many designs.
  • PC817 --: Industry-standard phototransistor optocoupler offering comparable isolation voltage and current transfer ratio for general-purpose isolation.
  • TLP521-1 --: Common single-channel phototransistor optocoupler with similar electrical characteristics and good second-source availability.
  • LTV-817 --: General-purpose optocoupler equivalent to PC817 with similar electrical characteristics, suitable drop-in replacement for many IL221AT applications.

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