Hawun AC-DC Power Supply Distributor | Switching 2026

AC-DC switching power supplies and modules from 7 W to 30 W for industrial and embedded products.

Read the AC-DC Power Supplies Selection Guide

AC-DC Power Supplies Overview

BeiLuo supplies Hawun AC-DC power supplies, the switching supplies and modules that convert mains input into the regulated DC rails a product needs. Hawun offers board-level modules and enclosed units, from a compact 7 watt module for industrial applications to larger enclosed supplies for equipment, all with universal mains input that covers the common worldwide voltage range. A switching supply delivers high efficiency and a small size, but its switching noise and its transient behaviour must be managed, and the input protection, the filter and the thermal design decide whether it meets its specification and its safety requirements. The choice depends on the output power, the output voltage, the efficiency, the cooling and the safety standards the product must meet, and the supply must be matched to the load rather than picked by wattage alone. Because the supply is connected to the mains, its isolation and its creepage and clearance are safety-critical, and the layout and the components must respect them. Every device BeiLuo ships is factory-traceable and includes an import declaration, a certificate of origin and a RoHS compliance file. Our FAE team helps you choose a supply, plan the input protection and filter and verify the thermal and safety design.

AC-DC Power Supplies Product Range

In-stock AC-DC series available now, each with import documentation and FAE support. Click a model for full specifications and purchase information.

ModelInputOutputPowerEfficiencyPackage
HW-AC-MOD-7W-0585 to 264 V AC5 V7 WUp to 80%Board module
HW-AC-ENC-30W-1285 to 264 V AC12 V30 WUp to 88%Enclosed

Frequently Asked Questions

How do I manage switching noise from an AC-DC supply?

Use the input filter the datasheet recommends, keep the switching loop small, and post-regulate a sensitive rail with a linear regulator or a low-noise DC-DC converter.

Layout and filtering decide the result.

Open the HW-AC-MOD-7W-05 detail page

What safety points matter for a mains supply?

Isolation, creepage and clearance are safety-critical, and the input protection and the fuse must be chosen for the application and the standard.

Our FAE team helps with the safety design during design-in.

Read the AC-DC design application note

How do I choose the output power?

Size the supply for the peak load with margin for transients and for the derating at high temperature, rather than for the average load.

Confirm the derating curve against your enclosure.

Browse the AC-DC supplies

Documentation

Need a quote or samples?

Request pricing, samples or technical consultation for AC-DC Power Supplies products. Our FAE team responds within one business day.

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