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TLP191B from TOP

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TLP191B

Manufacturer: TOP, TOS, TOSHIBA

Photocoupler GaAlAs Ired & Photo

Partnumber Manufacturer Quantity Availability
TLP191B TOP, TOS, TOSHIBA 1771 In Stock

Description and Introduction

Photocoupler GaAlAs Ired & Photo The TLP191B is an optocoupler manufactured by Toshiba. Here are its specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Manufacturer:**  
- **Toshiba**  

### **Specifications:**  
- **Type:** Phototransistor Output Optocoupler  
- **Isolation Voltage:** 3750 Vrms (min)  
- **Collector-Emitter Voltage (VCEO):** 80 V (max)  
- **Emitter-Collector Voltage (VECO):** 5 V (max)  
- **Collector Current (IC):** 50 mA (max)  
- **Current Transfer Ratio (CTR):** 50% (min) at IF = 5 mA  
- **Input Forward Current (IF):** 50 mA (max)  
- **Reverse Input Voltage (VR):** 5 V (max)  
- **Operating Temperature Range:** -55°C to +110°C  
- **Package Type:** SOP (Small Outline Package)  

### **Descriptions:**  
- The TLP191B is a high-reliability optocoupler designed for signal isolation in various applications.  
- It consists of a GaAs infrared LED optically coupled to a phototransistor.  
- Suitable for high-speed digital signal transmission and noise immunity in industrial and consumer electronics.  

### **Features:**  
- **High Isolation Voltage:** Ensures safety in high-voltage applications.  
- **Compact SOP Package:** Space-saving design for PCB layouts.  
- **High CTR (Current Transfer Ratio):** Ensures efficient signal transmission.  
- **Wide Operating Temperature Range:** Reliable performance in harsh environments.  
- **Lead-Free & RoHS Compliant:** Meets environmental standards.  

This information is strictly based on the available knowledge base. Let me know if you need further details.

Application Scenarios & Design Considerations

Photocoupler GaAlAs Ired & Photo

Alternative Part Number

  • PC817 --: Industry-standard general-purpose optocoupler with similar CTR and isolation ratings, widely available and cost-effective substitute for TLP191B in most isolation applications.
  • LTV-817 --: Pin-compatible photocoupler with comparable isolation voltage and current transfer ratio, offering a direct drop-in replacement with broad supply availability.
  • EL817 --: Equivalent 4-pin DIP optocoupler with similar electrical characteristics and isolation performance, suitable as a lower-cost alternative for TLP191B.

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