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IL201 from SIEMENS

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IL201

Manufacturer: SIEMENS

Optocoupler, Phototransistor Output, Low Input Current, With Base Connection

Partnumber Manufacturer Quantity Availability
IL201 SIEMENS 580 In Stock

Description and Introduction

Optocoupler, Phototransistor Output, Low Input Current, With Base Connection The IL201 is a high-performance optocoupler manufactured by **Vishay Semiconductor**. Below are its specifications, descriptions, and features based on the available knowledge base:

### **Manufacturer Specifications:**  
- **Manufacturer:** Vishay Semiconductor  
- **Type:** Optocoupler (Optoisolator)  
- **Input Type:** Infrared LED  
- **Output Type:** Phototransistor  
- **Isolation Voltage:** 5300 Vrms (minimum)  
- **Current Transfer Ratio (CTR):** 50% to 600% (varies by variant)  
- **Input Forward Current (IF):** 10 mA (typical)  
- **Output Collector-Emitter Voltage (VCEO):** 70 V  
- **Switching Speed:** 3 µs (typical for response time)  
- **Operating Temperature Range:** -55°C to +110°C  
- **Package Type:** DIP-4 (Dual In-line Package, 4-pin)  

### **Descriptions:**  
The IL201 is a **high-speed optocoupler** designed for applications requiring electrical isolation between circuits. It consists of an **infrared LED** optically coupled to a **phototransistor**, providing reliable signal transmission while maintaining high-voltage isolation.  

### **Features:**  
- **High Isolation Voltage (5300 Vrms)** for safety in high-voltage applications.  
- **Wide CTR Range (50% to 600%)** for flexibility in different circuit designs.  
- **Fast Switching Speed (3 µs)** suitable for digital signal isolation.  
- **High Collector-Emitter Voltage (70 V)** for robust performance.  
- **Wide Operating Temperature Range (-55°C to +110°C)** for harsh environments.  
- **Industry-Standard DIP-4 Package** for easy PCB mounting.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Optocoupler, Phototransistor Output, Low Input Current, With Base Connection

Alternative Part Number

  • SFH618A-2 --: Phototransistor optocoupler in a DIP-4 package with similar CTR and isolation ratings, a common drop-in replacement for Siemens IL-series couplers.
  • PC817 --: Widely available general-purpose phototransistor optocoupler with comparable CTR and 5 kV isolation, suitable for most IL201 applications.
  • TLP521-1 --: Standard DIP-4 phototransistor optocoupler with similar forward current and isolation voltage, an established alternative when the IL201 is unavailable.
  • LTV-201 --: Optocoupler with similar phototransistor output and CTR grade, commonly used as a direct substitute in isolated signal applications.
  • PC201 --: Comparable optocoupler in a DIP package with similar isolation voltage and current transfer ratio, suitable for drop-in replacement.
  • TLP201 --: Equivalent-class optocoupler offering similar input/output characteristics and isolation ratings for general-purpose isolation circuits.

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