Power adapter/inverter Mean Well SKMW30F-03 — 30 W output, RoHS certified, 18 g

Mean Well SKMW30F-03 is a compact DC-DC converter PCB mount designed to deliver a regulated 3.3 Vdc single output at up to 7.5 A from a 9–36 Vdc input. The module occupies an ultra-compact 1" x 1" footprint in a DIP through-hole package and includes Remote ON/OFF control. With a 30 W output rating and RoHS compliance, it is intended for integration into electronic modules, OEM power systems, and volume production assemblies where board-mounted power conversion is required.

Advantages

The converter combines a small form factor with a relatively high output current for its size, enabling dense PCB layouts and space-saving power designs. Its wide input range supports vehicles and industrial 12 V/24 V systems without additional pre-regulation. The DIP through-hole package simplifies mechanical mounting and soldering on standard PCBs, while the Remote ON/OFF pin provides straightforward control for system power sequencing. RoHS compliance ensures conformity with environmental and manufacturing standards.

Suitable for

• Board-mounted power supply for embedded systems and microcontroller modules
• OEM assemblies and volume production electronics
• Industrial and vehicular 12 V/24 V powered devices
• Powering sensors, communication modules, and small actuators requiring 3.3 V

Key specifications

• Output power: 30 W
• Output voltage: 3.3 Vdc
• Maximum output current: 7.5 A
• Input voltage range: 9–36 Vdc
• Package type: DIP through-hole, PCB mount
• Size: 1" x 1" (ultra-compact footprint)
• Control: Remote ON/OFF function
• Environmental compliance: RoHS certified
• Weight: approximately 18 g

How to use

Mount the module on the PCB in the designated DIP through-hole footprint and solder using standard through-hole soldering processes. Connect a suitable 9–36 Vdc source to the input pins, observe correct polarity, and route the 3.3 V output to the load with adequate PCB trace width for up to 7.5 A. Use the Remote ON/OFF pin to enable or disable the output as part of system power sequencing; refer to the manufacturer's application notes for recommended pull-up/pull-down wiring and logic levels. Ensure proper decoupling and layout practices to minimise noise and maintain stable regulation under load.

Recommendations

To ensure reliable operation and thermal management, provide sufficient copper area or thermal vias under the module footprint and avoid continuous operation at the maximum rated current without verifying board-level temperature rise. Use input filtering and transient protection in harsh environments and follow PCB layout guidelines for high-current 3.3 V rails. For bulk installations, inspect solder joints and mechanical retention to maintain long-term reliability.