1500 W bidirectional TVS in a DO-201 axial package
The 1.5KE47C: The DO-201AA (DO-27) axial-lead package suits through-hole mounting on power rails, telecom lines, or DC bus protection where a single bidirectional device replaces two unidirectional diodes in anti-series.
Clamping voltage and pulse current — the real protection envelope
For a 40.2 V standoff rail (e.g., a 36 V nominal bus with 10% tolerance), the clamping margin is roughly 28 V above the operating level — typical for a 1500 W TVS in this voltage class. The 42.35 V minimum breakdown ensures the device does not conduct at the standoff voltage, avoiding leakage-induced heating. The single bidirectional channel protects both polarities in one package — useful on AC signal lines or DC rails where reverse-voltage events are possible.