SMAJ18A TVS Diode SMA/DO-214AC 400W 18V Transient Voltage Suppressor for ESD Protection | RUILON

SEO Title

SMAJ18A TVS Diode SMA/DO-214AC 400W 18V Transient Voltage Suppressor for ESD Protection | RUILON

SEO Description (150–250 words)

The SMAJ18A TVS Diode from RUILON is a high-reliability 400W transient voltage suppressor designed to protect sensitive electronic circuits from electrostatic discharge (ESD), lightning-induced surges, and fast transient voltage spikes. Built with advanced avalanche breakdown technology, this device provides ultra-fast response time and precise clamping performance, ensuring effective suppression of overvoltage events and reliable protection of sensitive semiconductor components.

With a reverse standoff voltage of 18V, the SMAJ18A is suitable for low-voltage electronic systems requiring robust protection for logic-level and power interface circuits. It features low leakage current and optimized clamping characteristics, enabling efficient energy absorption while maintaining stable circuit operation. The diode also provides low forward voltage drop (VF), improving overall system efficiency and reducing power loss during transient conditions.

Encased in a durable SMA (DO-214AC) surface-mount package, the SMAJ18A ensures excellent thermal performance and mechanical reliability, making it suitable for demanding PCB environments. Its compact design supports automated SMT assembly while delivering strong surge handling capability.

Compared to standard protection devices, this TVS diode offers enhanced surge absorption performance, making it a reliable solution for industrial electronics, consumer devices, and communication systems requiring compact and efficient ESD protection.

Key Specifications

• Part Number: SMAJ18A

• Type: Transient Voltage Suppressor (TVS) Diode

• Power Dissipation: 400W (Peak Pulse Power)

• Reverse Standoff Voltage: 18V

• Package: SMA (DO-214AC)

• Response Time: Ultra-fast

• Leakage Current: Low

• Forward Voltage (VF): Low

• Clamping Capability: High efficiency

• Mounting Type: Surface Mount (SMD)

Key Features

• High peak pulse power dissipation (400W)

• Ultra-fast transient response

• Strong clamping for ESD and surge protection

• Low forward voltage drop for efficiency

• Low leakage current for stable operation

• Robust SMA (DO-214AC) package

• High thermal and mechanical reliability

• Suitable for automated SMT assembly

Applications

• Low-voltage power line protection

• USB and data interface protection

• Industrial control systems

• Consumer electronics

• Telecom and networking equipment

• Automotive electronics

• ESD and transient surge protection systems