How to Select Rectifier Diodes for SMPS?
Select SMPS rectifier diodes by circuit role: Schottky, ultrafast and SiC compared, reverse-recovery loss worked out, and the datasheet checks that matter.
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How Do You Choose a MOSFET for a Switching Power Supply?
A MOSFET for a switching power supply must match the bus voltage, load current, switching frequency, and thermal limits. The best choice balances low RDS(on), low gate charge, adequate voltage margin, and package thermal performance. In SMPS designs, the right device improves efficiency, reduces heat, and increases reliability. Last updated: October 11, 2026 Key Takeaways … Read more
How Do You Design an EMI Filter?
A switching power supply EMI filter design reduces conducted noise, improves EMC compliance, and protects the power line from switching spikes. The best design starts by identifying whether the noise is differential mode or common mode, then choosing the right LC, pi, or common-mode choke network, and finally validating the result with measurement and layout … Read more
Good-Ark MOSFET: A Practical Guide For B2B Semiconductor Sourcing
A MOSFET is not selected on the on-resistance in the summary line; it is selected on that resistance hot, on the avalanche energy it can absorb, and on the derating curve that connects the two. A real 600 V part shows why: 0.395 Ω typical and 0.450 Ω maximum at 25 °C, but a continuous drain current of 9 A … Read more
SiC Semiconductor Selection: What B2B Buyers Should Verify Before Design-In
Silicon carbide changes the loss equation in one specific place, and that is where a buyer should look first. A 650 V, 10 A SiC Schottky diode is specified with no reverse recovery charge across the application current range, switching behaviour that does not move with temperature, a 175 °C junction limit and a high forward surge capability … Read more
Good-Ark Semiconductor: A Practical Guide to Sourcing Discrete Devices
Finding a Good-Ark semiconductor part is the start of a sourcing decision. The useful next step is to establish which exact ordering code, datasheet revision and supply channel apply, then confirm that the device meets the circuit’s electrical and mechanical requirements. This guide turns that work into an approval record a designer, buyer and receiving … Read more
Schottky Barrier Rectifier Diode: Practical Selection for Efficient Power Design
Selecting a Schottky barrier rectifier is a leakage-and-thermal decision, not a forward-voltage shopping exercise. Two parts from one vendor make the point: a 30 V, 1 A rectifier with a 0.26 V typical forward drop, and a 100 V, dual 10 A rectifier with a 0.59 V typical drop — and the second one is chosen not because it is faster, … Read more
What Is a General Purpose PNP Transistor?
A general purpose PNP transistor is a bipolar junction transistor used for switching and amplification, especially on the high side of a circuit. It turns on when the base is driven lower than the emitter, allowing current to flow from emitter to collector. Designers choose it for simple control, compact layouts, and reliable performance in … Read more
What Is a Pre-Biased Transistor?
A pre-biased transistor is a bipolar transistor with built-in resistors that simplify switching circuits. It reduces external parts, saves PCB space, and lowers assembly cost while making design more consistent. Engineers use it in level shifting, inverting, and load-driving applications where fast, compact, reliable switching matters. Last updated: October 16, 2026 What Is a Pre-Biased … Read more
What Is a Digital Switching Transistor?
A digital switching transistor hides its bias resistors inside the package. What the 7-13 kOhm tolerance means, and when a plain BJT is the better choice.
What Is a SOT-23 Bipolar Transistor?
A SOT-23 bipolar transistor fixes footprint, pinout, thermal path and marking. How the outline sets usable current, and when to move to a smaller package.
What Is a General Purpose NPN Transistor?
A general-purpose NPN transistor is a ratings envelope: 40 V, 200 mA, gain 100-300. How to size the base resistor, and when a MOSFET is the better answer.