1500 W peak pulse — clamping a 28.2 V rail
The 1.5KE33CA-E3/73: Breakdown voltage starts at 31.4 V minimum, so the device stays transparent below the rail until a surge pushes the line past that threshold. It is a general-purpose part for through-hole board layouts where axial-lead insertion is the assembly method.
Bidirectional clamping for ungrounded signal pairs
A single bidirectional channel means the same device clamps positive and negative transients symmetrically — useful on balanced signal lines or DC rails where polarity reversal is a risk, without needing two diodes back-to-back. The 45.7 V clamp voltage leaves margin for a 24 V nominal bus that can ride through a 36 V load-dump transient before the TVS starts conducting hard. The junction temperature range spans -55°C to 175°C, covering industrial enclosure and outdoor telecom environments. The through-hole DO-201AA (DO-27) axial package solders into a 1.0 mm diameter hole on a standard PCB or terminal block — the lead bend radius matters for stress relief in high-vibration applications.
Active production — no last-time-buy pressure
The 1.5KE33CA-/73 carries an active lifecycle status. The TransZorb series is a long-running Vishay line, so the part remains available through authorized distribution without an imminent EOL notice.