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SMDJ18A from CCD

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SMDJ18A

Manufacturer: CCD, LITTELFUSE

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

Partnumber Manufacturer Quantity Availability
SMDJ18A CCD, LITTELFUSE 119300 In Stock

Description and Introduction

SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR VOLTAGE-5.0 TO 170 Volts 3000 Watt Peak Pulse Power The SMDJ18A is a Transient Voltage Suppressor (TVS) diode manufactured by CCD (Comchip Technology). Here are its specifications, descriptions, and features:

### **Specifications:**  
- **Part Number:** SMDJ18A  
- **Manufacturer:** CCD (Comchip Technology)  
- **Type:** Uni-directional TVS Diode  
- **Working Peak Reverse Voltage (V_RWM):** 18V  
- **Breakdown Voltage (V_BR):** 20.0V (min) – 22.1V (max)  
- **Clamping Voltage (V_C):** 29.2V at 10A  
- **Peak Pulse Current (I_PP):** 10A (8/20μs waveform)  
- **Maximum Reverse Leakage Current (I_R):** 1μA at V_RWM  
- **Power Dissipation (P_PPM):** 1500W (peak pulse power)  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package:** DO-214AB (SMC)  

### **Descriptions:**  
- Designed for surge protection in electronic circuits.  
- Protects sensitive components from voltage transients and ESD events.  
- Suitable for high-speed data lines, power supplies, and communication systems.  

### **Features:**  
- **Fast Response Time:** Reacts quickly to transient overvoltage conditions.  
- **High Surge Capability:** Handles high transient currents.  
- **Low Clamping Voltage:** Limits voltage spikes effectively.  
- **RoHS Compliant:** Meets environmental standards.  
- **Surface Mount Package:** Compact and suitable for automated assembly.  

For detailed application notes, refer to 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

  • 1SMB18AT3G --: Same 18V standoff unidirectional TVS in SMB package with comparable 400W-class surge rating; widely available and pin-compatible footprint.
  • P6SMB18A --: 600W unidirectional TVS diode with 18V standoff in SMB package; similar clamping performance and drop-in SMB footprint.
  • SMAJ18A --: 400W unidirectional TVS with 18V standoff in SMA package; lower power class but adequate for many SMDJ18A applications and easily sourced.

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