SMUN is committed to ensuring product quality and strengthening environmental protection. The company and products have passed CE, ROHS, CCC and ISO9000 certification.
Key TakeawaysCustom starts where the catalogue stops. Non-standard ratios, tolerances or form factors are what justify the engineering spend.NRE is engineering labour, not tooling alone. Schematic, layout, magnetics, firmware and test fixtures all sit inside the fee.MOQ follows the component buy. A
READ MOREKey TakeawaysCurrent rating is a thermal number. The continuous current a module can hold depends on its derating curve, not on the model name.Apply the 80% rule. A 15A module is sized for roughly 12A continuous, leaving margin for heat and ageing.Inrush decides the next size up. Motors and capaciti
READ MOREKey TakeawaysBuck only steps down. Its switch, inductor and capacitor hold a duty cycle below one, so the output always sits under the input.Boost only steps up. Energy stored in the inductor adds to the input voltage, and input current rises with the step-up ratio.Buck-boost covers a battery that c
READ MORE