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T405-800B from ST,ST Microelectronics

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T405-800B

Manufacturer: ST

4A TRIACS

Partnumber Manufacturer Quantity Availability
T405-800B,T405800B ST 1597 In Stock

Description and Introduction

4A TRIACS **Part Number:** T405-800B  
**Manufacturer:** ST  

### **Specifications:**  
- **Type:** Thyristor (SCR - Silicon Controlled Rectifier)  
- **Voltage Rating (VDRM/VRRM):** 800V  
- **Current Rating (IT(RMS)):** 4A  
- **Gate Trigger Current (IGT):** 5mA (typical)  
- **Gate Trigger Voltage (VGT):** 0.8V (typical)  
- **Holding Current (IH):** 5mA (typical)  
- **On-State Voltage Drop (VTM):** 1.7V (typical at IT = 4A)  
- **Critical Rate of Rise of Off-State Voltage (dv/dt):** 50V/µs (minimum)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220 (isolated tab)  

### **Descriptions:**  
- The T405-800B is a standard 4A, 800V thyristor (SCR) designed for general-purpose switching applications.  
- It features high surge current capability and reliable performance in AC power control circuits.  

### **Features:**  
- **High Voltage Capability:** Suitable for 800V applications.  
- **Low Trigger Current:** Ensures compatibility with low-power control circuits.  
- **Isolated Package:** TO-220 with an isolated tab for simplified mounting.  
- **Robust Construction:** Designed for high reliability in industrial environments.  
- **Applications:** AC switching, motor control, lighting control, and power supplies.  

For detailed electrical characteristics and thermal data, refer to the official ST datasheet.

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