Parametric fit and thermal envelope
The PB5008-E3/45: Rated 800 V peak reverse voltage and 45 A average rectified output — this is a standard-recovery silicon bridge for bulk AC-to-DC conversion in power supplies, battery chargers, and motor-drive DC buses where the input line is 480 VAC or below. Forward voltage is 1.1 V typical at 22.5 A — half the rated current — which gives a conduction loss of roughly 25 W per diode pair at that operating point; the 4-SIP PB package's thermal impedance to the PCB copper must be sized to keep the junction below 150°C.
Through-hole mounting in a 4-SIP PB (isoCINK+™ PB) package — the four pins route the AC inputs and DC output in a single in-line row, which simplifies the PCB trace layout for the high-current loops. Supplied in tube packaging; the isoCINK+™ PB package provides creepage and clearance distances for the 800 V peak rating without requiring a separate heatsink insulator in many designs.
Lifecycle and compliance
ROHS3 compliant, so no exemption expiry risk for EU-market BOMs. Reverse leakage is specified at 10 µA at the full 800 V blocking voltage — a clean blocking characteristic that avoids thermal runaway in high-line applications where leakage doubles with temperature.