Obsolete — sourcing reality for the 1.5KE200C-B
Sourcing this part means going through independent surplus and broker channels, where lots are date-code specific and confirmed at RFQ. Availability is lot-dependent; the buyer should expect to quote against their BOM quantity.
What the 1500W peak pulse rating means for fit
The 171V reverse standoff (working voltage) means the diode does not conduct at nominal line voltages up to that level; it starts clamping at a minimum breakdown of 180V and hard-clamps at 287.7V max, passing up to 5.5A of surge current.
Bidirectional — one device for both polarities
A single bidirectional channel protects against positive and negative transients on the same line — useful for AC signal lines or DC rails where reverse polarity surges are possible. No power line protection feature — this is a standalone TVS, not a integrated filter or EMC component. The clamping action is the sole protection mechanism.
Through-hole axial package — board-fit for legacy rework
The DO-201 supplier device package matches the original Littelfuse outline.