60 V, 30 A common-cathode Schottky — the dual-diode for high-frequency rectification
The STPS30L60CW from STMicroelectronics is a dual Schottky rectifier in a TO-247-3 package, configured as a single pair with a common cathode. Each diode is rated for 15 A average rectified current and 60 V reverse voltage, with a forward voltage drop of 600 mV at 15 A.
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This part is listed as obsolete by the manufacturer. Sourcing is through independent distribution channels, where remaining stock is finite and quoted per order against an RFQ. For new designs or production continuity, a pin-compatible replacement should be qualified — see the FAQ for the closest alternative in the same family.
The 60 V reverse voltage rating sets the maximum DC bus voltage at 48 V with derating for transients — typical for a 48 V telecom rectifier or a 36 V battery charger. Each diode handles 15 A continuous; the common-cathode pair in a TO-247-3 lets you wire two independent outputs or one center-tapped winding with a shared cathode tab, keeping the thermal path through the backside of the package. At 15 A the 600 mV Vf produces 9 W per diode — plan the heatsink interface and forced airflow for a combined 18 W dissipation worst-case. The fast recovery ≤500 ns is sufficient for switching frequencies up to about 100 kHz; above that, a lower-Qrr Schottky or SiC diode would be needed to keep switching losses in check.