1500 W bidirectional transient suppressor
The 1.5KE220C: The single bidirectional channel protects both polarities from a single device, saving board space compared to back-to-back unidirectional diodes.
DO-201 axial package and thermal envelope
The DO-201 body handles the 1500 W pulse without external heatsinking — the lead frame and solder joint carry the thermal pulse to the PCB copper. The operating junction temperature range spans -55°C to 175°C, covering industrial and telecom outdoor enclosures where ambient heat and self-heating from repetitive surges must be budgeted together.
Obsolete — sourcing through independent channels
Littelfuse has marked the 1.5KE220C as obsolete. For a BOM line that requires this exact clamping voltage and package, the 1.5KE220C remains orderable against the RFQ.