Active production, 1500 W TransZorb
The 1.5KE56CA-E3/73: With a 47.8 V reverse standoff voltage and a 53.2 V minimum breakdown, it clamps transients at 77 V maximum while conducting 19.5 A peak pulse current — sized for 48 V nominal rails in industrial and telecom gear where a single bidirectional device protects both polarities.
Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE56CA-/73 suits through-hole assembly on boards or terminal strips where the lead bend absorbs board flex. The junction temperature range spans -55°C to 175°C, covering hot environments like power-supply outputs or motor-drive DC buses without derating at the high end. The Tape & Box (TB) packaging option (/73 suffix) feeds axial-insertion machines with the leads oriented consistently — the same die as the bulk-packaged 1.5KE56CA, just in a machine-ready format.
Sourcing and compliance
Listed as Active by Vishay — no last-time-buy window or successor part number has been issued. The part carries no power-line protection rating (: No), so it is intended for signal-line and low-voltage DC rail transient suppression rather than AC mains clamping. Standard compliance documentation (RoHS, REACH) is maintained by Vishay for this series.