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SM1J43 from TOS,TOSHIBA

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SM1J43

Manufacturer: TOS, TOSHIBA

BI-DIRECTIONAL TRIODE THYRISTOR SILICON PLANAR TYPE AC POWER CONTROL APPLICATIONS

Partnumber Manufacturer Quantity Availability
SM1J43 TOS, TOSHIBA 15420 In Stock

Description and Introduction

BI-DIRECTIONAL TRIODE THYRISTOR SILICON PLANAR TYPE AC POWER CONTROL APPLICATIONS The part **SM1J43** is a **surface mount transient voltage suppressor (TVS) diode** manufactured by **TOS (Toshiba)**.  

### **Specifications:**  
- **Type:** Uni-directional TVS diode  
- **Peak Pulse Power:** 600W (10/1000μs)  
- **Breakdown Voltage (VBR):** 47.9V (min) – 53V (max)  
- **Standoff Voltage (VRWM):** 43V  
- **Clamping Voltage (VC):** 69.4V (at 10A)  
- **Maximum Reverse Leakage Current (IR):** 1μA (at VRWM)  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** DO-214AC (SMA)  

### **Descriptions & Features:**  
- Designed for **ESD and surge protection** in electronic circuits.  
- Provides **fast response time** to transient voltage spikes.  
- **Low clamping voltage** for effective protection of sensitive components.  
- **RoHS compliant** and suitable for **automotive, industrial, and consumer electronics** applications.  
- **Surface-mount (SMD) package** for compact PCB designs.  

This diode is commonly used in **power supplies, communication systems, and automotive electronics** for transient voltage suppression.

Application Scenarios & Design Considerations

BI-DIRECTIONAL TRIODE THYRISTOR SILICON PLANAR TYPE AC POWER CONTROL APPLICATIONS

Alternative Part Number

  • 1N4007 --: General-purpose 1000V 1A rectifier diode, widely available and commonly used as a substitute for small-signal rectifiers like the SM1J43.
  • 1N4005 --: 600V 1A rectifier diode with similar current rating and axial package, suitable for general rectification where the higher voltage of the SM1J43 is not required.
  • BAV21 --: 200V 250mA small-signal switching diode with fast recovery, a practical alternative for low-current switching and rectification applications.
  • 1N4148 --: Very common 100V 200mA fast switching diode; usable as a functional replacement in low-voltage, low-current signal paths where the SM1J43 is used.

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