1500 W TransZorb® — what the ratings mean for the BOM
The 1.5KE75-E3/54: The Vishay 1.5KE75-/54 is a 1500 W (1.5 kW) unidirectional TransZorb® TVS diode in the DO-201AA axial-lead package. The 60.7 V reverse standoff (working voltage) means a 48 V or 60 V nominal rail stays below the diode's leakage threshold during normal operation, while the 67.5 V minimum breakdown ensures the device starts conducting before the rail exceeds its safe operating area.
Obsolete — sourcing reality for the 1.5KE75-E3/54
Quantities are lot-specific; traceability and date codes are confirmed at RFQ. No pin-compatible drop-in replacement from Vishay's current TransZorb® portfolio is documented — a parametric search on 1500 W, 60.7 V standoff, DO-201AA will surface functional equivalents, but the exact order code is end-of-life.
