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SMDJ40A from LITTELFUSE

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SMDJ40A

Manufacturer: LITTELFUSE, CCD

SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR VOLTAGE-5.0 TO 170 Volts 3000 Watt Peak Pulse Power
Partnumber Manufacturer Quantity Availability
SMDJ40A LITTELFUSE, CCD 131000 In Stock

Description and Introduction

SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR VOLTAGE-5.0 TO 170 Volts 3000 Watt Peak Pulse Power The SMDJ40A is a transient voltage suppressor (TVS) diode manufactured by CCD (Comchip Technology). Here are the specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Peak Pulse Power (PPP):** 1500W (10/1000μs waveform)  
- **Breakdown Voltage (VBR):** 44.4V (min) to 49.1V (max)  
- **Standoff Voltage (VRWM):** 40V  
- **Clamping Voltage (VC):** 64.5V at 16.5A  
- **Maximum Reverse Leakage Current (IR):** 1μA at VRWM  
- **Junction Capacitance (CJ):** 1000pF (typical)  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** DO-214AB (SMC)  

### **Descriptions:**  
- Designed to protect sensitive electronics from voltage transients and surges.  
- Bi-directional TVS diode for ESD, lightning, and inductive load switching protection.  
- RoHS compliant and halogen-free.  

### **Features:**  
- High surge capability.  
- Low clamping voltage.  
- Fast response time (<1ns).  
- Meets IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (Surge) standards.  

This information is strictly based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

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

Alternative Part Number

  • SMAJ40A --: Same 400W unidirectional TVS family in a smaller SMA package with matching 40V standoff and clamping characteristics; suitable when board space is limited and surge energy is lower.
  • SMBJ40A --: 600W unidirectional TVS in SMB package with the same 40V standoff voltage; provides higher surge capability than SMAJ and is a common drop-in upgrade for SMDJ40A in many designs.
  • P6SMB40A --: 600W unidirectional TVS diode with 40V standoff in SMB package from an alternate reputable vendor; electrically similar and useful as a second-source option for SMDJ40A.
  • 1SMB40AT3G --: Unidirectional 40V standoff TVS diode in SMB package with similar clamping performance, widely available and a common drop-in substitute for SMDJ40A.

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