SMA6J & SMA6J-Q 600W TVS Diodes Bourns SMA6J and SMA6J-Q Transient Voltage Suppressor (TVS) Diodes provide 600W peak pulse power dissipation instead of the industry-standard 400W. This increased power helps designers create compact designs with high power density. Bourns SMA6J and SMAJ6-Q TVS Diodes come in a surface-mount SMA package and are designed for voltage transient and ESD protection in data lines and DC power supplies. Bourns SMA6J-Q is AEC-Q101 compliant for use in high-reliability power supplies and equipment used in harsh environments.