TransZorb bidirectional TVS for 171V rail clamping
The 1.5KE200CA-E3/54: The bidirectional configuration means a single device protects both polarities — useful on AC signal lines or DC rails where the return path is not ground-referenced. The 190 V minimum breakdown voltage ensures the TVS does not conduct during normal operation on a 171 V bus.
Clamping voltage and pulse current — the real protection envelope
The 1500 W rating is the product of clamp voltage and peak current at that waveform; a shorter pulse (8/20 µs) allows higher peak current before the same energy limit is reached. The through-hole DO-201AA (DO-27, axial) package suits point-to-point wiring or PCB mounting where the leads carry the transient current into the die without trace inductance adding to the clamp voltage.
Active production — sourcing for the BOM line
The 1.5KE200CA-/54 carries an Active lifecycle status from Vishay.