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SMDJ43A from CCD

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SMDJ43A

Manufacturer: CCD, LITTELFUSE

SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR VOLTAGE-5.0 TO 170 Volts 3000 Watt Peak Pulse Power

Partnumber Manufacturer Quantity Availability
SMDJ43A CCD, LITTELFUSE 131000 In Stock

Description and Introduction

SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR VOLTAGE-5.0 TO 170 Volts 3000 Watt Peak Pulse Power The SMDJ43A is a Transient Voltage Suppressor (TVS) Diode manufactured by LITTELFUSE. Below are its specifications, descriptions, and features:

### **Specifications:**
- **Peak Pulse Power (10/1000μs):** 1500W  
- **Standoff Voltage (VWM):** 38.5V  
- **Breakdown Voltage (VBR):** 42.8V (min) – 47.3V (max)  
- **Clamping Voltage (VC):** 69.4V (at 23.1A)  
- **Peak Pulse Current (IPP):** 23.1A  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** DO-214AB (SMC)  

### **Descriptions:**
- The SMDJ43A is designed to protect sensitive electronics from high-voltage transients, such as ESD, lightning, and inductive load switching.  
- It is a bidirectional TVS diode, meaning it can suppress both positive and negative voltage transients.  
- The device is RoHS compliant and halogen-free.  

### **Features:**
- **High Power Handling:** Capable of absorbing large transient energy.  
- **Low Clamping Voltage:** Provides effective protection for sensitive components.  
- **Fast Response Time:** Reacts quickly to transient events (picosecond range).  
- **Surface Mount Package:** Suitable for automated PCB assembly.  
- **Bidirectional Operation:** Protects against both positive and negative voltage spikes.  

For detailed application notes, refer to LITTELFUSE’s official datasheet.

Application Scenarios & Design Considerations

SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR VOLTAGE-5.0 TO 170 Volts 3000 Watt Peak Pulse Power

Alternative Part Number

  • SMAJ43A --: Same 43V standoff unidirectional TVS in the SMAJ series; lower power rating but widely available and pin-compatible for less demanding surge requirements.
  • SMCJ43A --: 43V unidirectional TVS in the SMCJ series with similar 1500W-class surge capability and compatible SMC footprint, a common cross for SMDJ parts.
  • 1.5SMC43A --: 1500W 43V unidirectional TVS diode with equivalent clamping behavior and SMC package, suitable as a functional substitute.
  • 1SMB43AT3G --: Unidirectional 43V standoff TVS diode in SMB package with comparable 400W peak pulse rating, suitable drop-in replacement for general surge protection.
  • P6SMB43A --: Same manufacturer family, 43V standoff unidirectional TVS in SMB with 600W peak pulse power, offering higher surge capability than the original.

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