I am rectifying low voltage AC from a mains transformer. Voltages are around 18-25V AC and currents are about 1.5A RMS.
The TO-220 Schottkys, all four of them, heat up to 60C (no heatsinks).
That means that a conventional bridge, utilising silicon diodes, would heat up much more, especially in a smaller, plastic package (smaller than the surface ares of four TO-220s plus their total of 12 pins vs 4 pins for the bridge).
Am I understanding it right? If I am right, if cost is not an obstacle, everyone should prefer the lower loss Schottkys for rectifying the transformer secondaries.