Articles

Four discrete diodes and a bridge module are electrically equivalent and mechanically different: the discretes buy placement freedom, and the bridge buys matching die, one heat path, and one assembly step. This guide compares the BOM, the thermal consistency, the maintenance, and the decision for your production volume. Electrical Equivalence Is Not the Whole Story … Read more

The bridge selection is made by the input, not the output: a single-phase input produces a rippling bus that needs more filtering, and a three-phase input produces a smoother six-pulse bus with different blocking and thermal numbers. This guide compares the two worlds and the sizing table. The Input Determines the Bridge The same DC … Read more

The TVS and the Zener share the breakdown family and split the work: the TVS clamps fast, high-energy transients repeatedly, and the Zener regulates a voltage continuously. This guide clarifies the split, the misapplications, and the selection. The Common Ancestry and the Split Both devices conduct in breakdown—the TVS and the Zener are cousins in … Read more

Pulse power is a package question: the SOD-123 package protects small lines with modest energy, and the SMB carries the 600 W class with a larger body and a better heat path. This guide compares the capability bands, the board-area trade, and the selection rules. Pulse Power Is a Package Question The TVS’s pulse-power capability … Read more

The D2PAK is a board-mount power package whose tab and exposed pad carry the heat into the PCB, and the board design decides whether a 30 A rating is real. This guide covers the footprint, the copper and via strategy, the soldering, and the inspection that verifies the joint—using the AMBRB family as the reference. … Read more

SMD power packages look interchangeable and are not: the capability band runs from SMA through SMB and SMC to TO-277, and each rung carries a different current and a different thermal contract. This guide compares the bands, the thermal pads, the PCB requirements, and the automotive use cases. SMD Power Packages Aren’t Interchangeable An SMB … Read more

Both the PDFN and the DPAK move heat through an exposed pad into the board, but they serve different current classes and pay different board costs. This guide compares the thermal numbers, the layout cost, and the assembly, and says when each package wins. Leadless Packages Move Heat Through the Pad The PDFN is a … Read more

D2PAK and TO-220 are both capable 30–40 A rectifier packages, but they embody two different thermal philosophies: the D2PAK turns the PCB into the heatsink, while the TO-220 bolts to an external one. The right choice follows the product’s mechanical architecture—dense board or chassis-level cooling. This article compares the two heat paths and maps them … Read more

Silicon Schottky diodes stop being practical around 250 V, and SiC Schottky diodes take over at 600/650 V and above, where their no-recovery behavior and high-temperature capability earn the premium. This guide compares the physics, the cost, and the PV and EV use cases, and draws the voltage line in between. The Physics Difference in … Read more

Which is better, a Schottky or a fast recovery diode? The answer is decided by gates, not by a topology slogan. A Schottky stores no PN-junction minority carriers, so it has essentially no PN-style reverse recovery and can beat an FRD even in hard-switched stages when its voltage, leakage, capacitance, surge, and thermal gates close; … Read more

The choice between a Schottky and a PN rectifier is decided by four gates, applied in order: voltage class, operating temperature, switching frequency, and system cost. Schottkys win on forward drop and speed where voltage and temperature allow; PN diodes win on leakage stability, high blocking voltage, and unit cost. Work through the gates below … Read more