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TLP545J from TOS,TOSHIBA

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TLP545J

Manufacturer: TOS, TOSHIBA, TOSHIBA

gaas ired & photo-thyristor

Partnumber Manufacturer Quantity Availability
TLP545J TOS, TOSHIBA, TOSHIBA 2099 In Stock

Description and Introduction

gaas ired & photo-thyristor The TLP545J is an optocoupler (photocoupler) manufactured by Toshiba. Below are its specifications, descriptions, and features based on available factual data:  

### **Specifications:**  
- **Type:** Photocoupler (Optocoupler) with Phototransistor Output  
- **Isolation Voltage:** 5000 Vrms (min)  
- **Collector-Emitter Voltage (VCEO):** 80 V (max)  
- **Emitter-Collector Voltage (VECO):** 7 V (max)  
- **Collector Current (IC):** 50 mA (max)  
- **Current Transfer Ratio (CTR):** 50% (min) at IF = 5 mA, VCE = 5 V  
- **Input Forward Current (IF):** 50 mA (max)  
- **Forward Voltage (VF):** 1.3 V (typ) at IF = 20 mA  
- **Turn-On Time (ton):** 3 μs (max)  
- **Turn-Off Time (toff):** 4 μs (max)  
- **Operating Temperature Range:** -55°C to +110°C  
- **Package Type:** DIP-4 (Dual Inline Package, 4-pin)  

### **Descriptions:**  
- The TLP545J is a high-reliability optocoupler designed for signal isolation in various electronic circuits.  
- It consists of a GaAs infrared LED optically coupled to a phototransistor.  
- Suitable for applications requiring high-voltage isolation and fast response times.  

### **Features:**  
- **High Isolation Voltage:** 5000 Vrms ensures strong electrical isolation.  
- **High CTR (Current Transfer Ratio):** Ensures efficient signal transmission.  
- **Fast Switching Speed:** Suitable for high-speed digital signal isolation.  
- **Compact DIP-4 Package:** Easy to integrate into PCB designs.  
- **Wide Operating Temperature Range:** Reliable performance in harsh environments.  

This information is based on Toshiba's official datasheet for the TLP545J optocoupler.

Application Scenarios & Design Considerations

gaas ired & photo-thyristor

Alternative Part Number

  • PC817 --: Industry-standard general-purpose optocoupler with similar CTR and isolation ratings, widely available and cost-effective drop-in for many TLP545J applications.
  • EL817 --: Pin-compatible 4-pin DIP optocoupler with comparable isolation voltage and current transfer ratio, suitable as a direct functional replacement.
  • LTV-817 --: Common 4-pin optocoupler offering similar CTR ranges and isolation performance, providing a reliable alternative with broad supply availability.

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