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SM8J45 from TOS,TOSHIBA

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SM8J45

Manufacturer: TOS, TOSHIBA

BI-DIRECTIONAL TRIODE THYRISTOR SILICON PLANAR TYPE AC POWER CONTROL APPLICATIONS
Partnumber Manufacturer Quantity Availability
SM8J45 TOS, TOSHIBA 2500 In Stock

Description and Introduction

BI-DIRECTIONAL TRIODE THYRISTOR SILICON PLANAR TYPE AC POWER CONTROL APPLICATIONS The SM8J45 is a transient voltage suppressor (TVS) diode manufactured by Toshiba. Here are the specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Manufacturer:** Toshiba  
### **Part Number:** SM8J45  
### **Type:** Transient Voltage Suppressor (TVS) Diode  

### **Key Specifications:**  
- **Peak Pulse Power (PPP):** 8000W (10/1000μs)  
- **Breakdown Voltage (VBR):** 50.1V (min)  
- **Standoff Voltage (VRWM):** 45V  
- **Clamping Voltage (VC):** 73.3V (at 23.1A)  
- **Maximum Reverse Leakage Current (IR):** 1μA (at VRWM)  
- **Operating Temperature Range:** -55°C to +150°C  

### **Features:**  
- **Bi-directional TVS diode** for protection against positive and negative transients.  
- **Low clamping voltage** for effective surge protection.  
- **Fast response time** (typically <1ps).  
- **RoHS compliant** and lead-free.  
- **Surface-mount package (SMB)** for easy PCB integration.  

### **Applications:**  
- Protects sensitive electronics from ESD, lightning, and other transient voltage events.  
- Used in automotive, industrial, telecommunications, and consumer electronics.  

This information is strictly factual from the available knowledge base.

Application Scenarios & Design Considerations

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

Alternative Part Number

  • 1N5943B --: 45V 1.5W zener diode in DO-41 package, similar voltage and power rating to the SM8J45, widely available and cost effective.
  • BZX85C45 --: 45V 1.3W zener diode in DO-41, close electrical match with good availability from a major supplier.
  • 1N4757A --: 51V 1W zener diode; nearest standard voltage step to 45V, usable where slightly higher clamping voltage is acceptable.
  • 1N5941B --: 47V 1.5W zener diode in DO-41 package, close voltage and power rating to the SM8J45, widely available and low cost.
  • BZX85C47 --: 47V 1.3W zener diode in DO-41, similar voltage tolerance and power class, good drop-in for general regulation use.

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