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TLP3120 from TOSHIBA

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TLP3120

Manufacturer: TOSHIBA, TOS

Photocoupler Photorelay

Partnumber Manufacturer Quantity Availability
TLP3120 TOSHIBA, TOS 1414 In Stock

Description and Introduction

Photocoupler Photorelay The TLP3120 is an optocoupler manufactured by Toshiba. Here are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Isolation Voltage:** 5000 Vrms (min)  
- **Collector-Emitter Voltage (VCEO):** 80 V  
- **Emitter-Collector Voltage (VECO):** 7 V  
- **Collector Current (IC):** 50 mA (max)  
- **Current Transfer Ratio (CTR):** 50% (min) at IF = 5 mA  
- **Input Forward Current (IF):** 25 mA (max)  
- **Forward Voltage (VF):** 1.3 V (typ) at IF = 5 mA  
- **Turn-On Time (ton):** 0.5 μs (max)  
- **Turn-Off Time (toff):** 0.5 μs (max)  
- **Operating Temperature Range:** -40°C to +100°C  

### **Description:**  
The TLP3120 is a high-speed photocoupler (optocoupler) consisting of a GaAlAs LED optically coupled to a high-speed photodetector transistor. It provides electrical isolation between input and output circuits and is designed for high-speed switching applications.  

### **Features:**  
- **High-Speed Response:** Fast switching with ton/toff of 0.5 μs (max).  
- **High Isolation Voltage:** 5000 Vrms ensures reliable isolation.  
- **Low Input Current:** Operates efficiently with low forward current.  
- **Compact Package:** Available in a 4-pin DIP package.  
- **Wide Operating Temperature Range:** Suitable for industrial applications.  

This device is commonly used in power supply control, communication interfaces, and industrial automation for signal isolation.  

(Note: Always refer to the official Toshiba datasheet for the most accurate and detailed specifications.)

Application Scenarios & Design Considerations

Photocoupler Photorelay

Alternative Part Number

  • AQY212S --: Solid-state photoMOS relay with similar load voltage and current ratings, suitable drop-in replacement in many switching applications.
  • LCA110 --: Optically isolated solid-state relay offering comparable on-resistance and isolation, commonly used as an alternative to Toshiba photo relays.
  • PVT412 --: Photovoltaic MOSFET relay with similar switching characteristics and isolation voltage, usable in equivalent low-power relay circuits.

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