1 kV peak reverse — the voltage ceiling for offline PFC and SMPS bulk rails
The PB5010-E3/45: The PB5010-/45 is a single-phase bridge rectifier from Vishay's isoCink+™ series, rated for 1 kV peak reverse voltage and 4.5 A average rectified output. That 1 kV PRV means it comfortably handles the rectified DC bus in a 230 VAC offline supply, including the peak of a 10 % line swell — roughly 360 VDC — with nearly 3× margin. The 4.5 A average is the continuous DC the bridge can deliver into a resistive or capacitive load with adequate heatsinking; the actual current a design can pull depends on the thermal path from the isoCINK+™ PB package to the board or chassis. The forward drop is specified at 1.1 V max at 22.5 A — that is the surge or inrush condition, not the 4.5 A average. At the average current the Vf will be lower, but the 1.1 V figure tells you the conduction loss under a cold-start capacitor charge event. Reverse leakage is 10 µA at the full 1000 V blocking voltage; this off-state current doubles roughly every 10 °C junction rise, so at 125 °C the leakage contribution to the thermal budget becomes material.
Through-hole SIP package — board integration and thermal routing
The PB5010-/45 comes in a 4-SIP through-hole package designated isoCINK+™ PB. The four leads are the AC input pair and the DC output pair — no centre-tap. The SIP format stands upright, so the board footprint is narrow, but the body height above the PCB means the part blocks airflow over adjacent components in a dense layout. The package is rated for through-hole soldering — wave or selective solder. The isoCink+™ series uses an internal metallurgical junction that Vishay claims reduces thermal resistance compared to a standard solder-joint bridge — the practical benefit is slightly lower die temperature for the same load, which extends the safe operating area at elevated ambient.
Active lifecycle and compliance — no PCN watch needed
The PB5010-/45 carries an Active lifecycle status — no NRND, no last-time-buy, no EOL notice on file. This is a standard catalog part from Vishay, so it is still a valid BOM line for new builds and field replacements. ROHS3 compliant per the current exemption list, which means no lead, mercury, or phthalate restrictions that would block EU or global shipments.