Bidirectional single-channel configuration means it protects against both positive and negative transients on the same line, which simplifies board layout for AC-coupled or floating signal rails.
Package and thermal range
Through-hole mounting in a B axial package (DO-204AC equivalent) — the leads are solderable into plated through-holes; the axial body allows manual or wave-solder assembly without a footprint change from legacy designs.
No single-source risk — the part is distributed across multiple channels.