The STMicroelectronics STPS30M60CT is a Schottky rectifier in a TO-220-3 through-hole package, configured as a pair of common-cathode diodes. Each diode is rated for 15 A average rectified current at a forward voltage of 590 mV, with a reverse voltage maximum of 60 V. The fast recovery characteristic (≤ 500 ns) suits it for high-frequency switching in power supplies, DC-DC converters, and freewheeling diode applications.
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Key ratings and their design impact
The 590 mV forward voltage at 15 A per diode translates to about 8.85 W conduction loss per diode at full current — thermal management with the TO-220 tab to a heatsink is essential. The 60 V reverse voltage gives a derating margin for 48 V bus applications. Reverse leakage is 80 µA at 60 V, which matters in standby or light-load efficiency calculations. The common-cathode configuration simplifies PCB layout for center-tapped transformer secondaries or dual-output rectifier stages.