SMD Varistors with High Surge Current Capability

Introduction

The SMD Varistors from TDK Corporation, specifically the B72210M and B72214M series, are advanced components designed to provide robust over-voltage protection. With their high surge current capabilities and flexible design options, these varistors are ideal for a variety of applications in modern electronic devices.

Part Description

TDK's SMD varistors are engineered to handle high surge currents, making them suitable for a wide range of operating voltages from 175 VRMS to 460 VRMS (225 VDC to 615 VDC). The B72210M series can withstand surge currents of up to 6000 A, while the B72214M series can handle up to 10,000 A. Both series are qualified to AEC-Q200, ensuring their reliability in automotive and industrial applications. The components are available in both horizontal and vertical designs, allowing for greater flexibility in PCB layouts. Their compact dimensions also contribute to space-saving designs compared to traditional leaded varistors.

Applications

• On-board chargers
• Power supplies
• Frequency converters
• Photovoltaic systems
• Household appliances

Industries

• Automotive
• Consumer electronics
• Renewable energy
• Industrial automation
• Home appliances

Usage Ideas

1. On-Board Charger Protection: Integrate the B72210M* varistor into an electric vehicle's on-board charger circuit to safeguard against voltage spikes during charging.
2. Power Supply Design: Use the B72214M* varistor in a power supply unit to protect sensitive components from transient voltage events, ensuring longevity and reliability.
3. Photovoltaic System Integration: Implement these varistors in a solar inverter to provide over-voltage protection, enhancing the system's resilience against lightning strikes and other surges.

Conclusion

TDK's SMD Varistors with high surge current capability are essential components for protecting electronic devices from over-voltage conditions. Their robust performance, flexible design options, and qualification to AEC-Q200 make them suitable for a wide range of applications across various industries. Whether in automotive, consumer electronics, or renewable energy, these varistors provide reliable protection, ensuring the safety and longevity of electronic systems.