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TN41A from TOS,TOSHIBA

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TN41A

Manufacturer: TOS, Toshiba

PROGRAMMABLE UNI JUNCTION TRANSISTOR SILICON PLANAR NPN THYRISTOR-TRIGGER, RELAXATION OSCILLATOR, PULSER AND TIMER APPLICATIONS

Partnumber Manufacturer Quantity Availability
TN41A TOS, Toshiba 3500 In Stock

Description and Introduction

PROGRAMMABLE UNI JUNCTION TRANSISTOR SILICON PLANAR NPN THYRISTOR-TRIGGER, RELAXATION OSCILLATOR, PULSER AND TIMER APPLICATIONS The TN41A is a thyristor (SCR) manufactured by Toshiba. Below are its key specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Type:** Silicon Controlled Rectifier (SCR)  
- **Repetitive Peak Off-State Voltage (VDRM):** 400V  
- **Repetitive Peak Reverse Voltage (VRRM):** 400V  
- **Average On-State Current (IT(AV)):** 25A  
- **Non-Repetitive Peak On-State Current (ITSM):** 300A (for 10ms)  
- **Gate Trigger Current (IGT):** 30mA (max)  
- **Gate Trigger Voltage (VGT):** 1.5V (max)  
- **Holding Current (IH):** 30mA (max)  
- **Critical Rate of Rise of On-State Current (di/dt):** 50A/µs  
- **Operating Junction Temperature (Tj):** -40°C to +125°C  

### **Descriptions:**  
- The TN41A is a standard phase-control thyristor designed for medium-power switching applications.  
- It is commonly used in AC power control circuits, motor drives, and industrial equipment.  
- The device features a stud-type package for efficient heat dissipation.  

### **Features:**  
- **High Surge Current Capability:** Supports high non-repetitive surge currents.  
- **Reliable Switching Performance:** Designed for stable triggering and switching.  
- **Stud-Mount Package:** Ensures good thermal conductivity for heat dissipation.  
- **Low Gate Trigger Requirements:** Operates with minimal gate current and voltage.  

For exact performance characteristics, refer to Toshiba’s official datasheet.

Application Scenarios & Design Considerations

PROGRAMMABLE UNI JUNCTION TRANSISTOR SILICON PLANAR NPN THYRISTOR-TRIGGER, RELAXATION OSCILLATOR, PULSER AND TIMER APPLICATIONS

Alternative Part Number

  • 2SC1815 --: Widely available general-purpose NPN transistor in the same small-signal class as the TN41A, suitable for low-power switching and amplification.
  • BC547 --: Industry-standard NPN small-signal transistor with comparable voltage and current ratings, easy second-source substitute for general switching applications.
  • 2N3904 --: Common NPN general-purpose transistor with similar small-signal characteristics, widely stocked and usable as a functional replacement.

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