Discrete Bridge Rectifier — Rectum Fryer
System Dump
Discrete Bridge Rectifier — Rectum Fryer
AC in, raw DC out. A discrete bridge — four individual diodes rather than a moulded block, each with its own snubber, each replaceable.
Silicon carbide rectification, repairable to the last part. Build yours today.
| Topology | Discrete bridge, four individual diodes |
| Rectifiers | 650 V, 6 A SiC Schottky |
| Output | Unregulated raw DC, single or split |
| On board | Diodes, per-diode snubbers, series output resistors |
| Diode package | TO-220AC, tab live at cathode |
| Serviceability | Fully repairable — any part can be replaced |
- Bridge rectifier — 1 × rectifier board (bare PCB)
- With op amp board — 1 × rectifier board + 1 × Associate amplifier PCB (bare boards)
Not included: components (see BOM below), reservoir caps, regulation, transformer, mains hardware.
Bill of materials
Ten parts, three line items — everything needed to populate one board.
Easiest route: paste the three lines below into your DigiKey cart's Bulk Add box.
Build notes
Why silicon carbide. The ST STPSC6H065D has zero reverse recovery, so there is no switching spike to snub in the first place. The snubber positions are on the board anyway, for anyone substituting a silicon part. Same rectifier as the Executive supply.
Substituting. The footprint is standard TO-220AC, so a silicon fast-recovery diode drops straight in. Watch the current rating if you're running a large transformer — the SiC part is 6 A.
Heatsinking. The TO-220AC tab is electrically live at the cathode. If you mount the diodes to a shared heatsink or the chassis, they need insulating hardware.
Community
Build questions, mods, and finished amps — join the builders on Discord.
Rectifiers
ST STPSC6H065D, 650 V / 6 A silicon carbide Schottky. Standard silicon stores charge while conducting and dumps it back in a burst as it switches off, ringing against transformer leakage inductance. Silicon carbide is a majority-carrier device with no stored charge at all — nothing to recover, nothing to ring. The snubber positions are on the board regardless, for anyone substituting a silicon part.
Transformer & mains parts
Not included.
Op amp board
An unpopulated PCB designed around these rails. Add it to your order above, or read up on it first.
Need a complete supply instead?
The Executive Supply is regulated ±15 V with filtering and regulators already on the board.