Power adapter/inverter Mean Well SPA01B-12, input 18–36 V, output 12 V, 1 W

Mean Well SPA01B-12 is a compact DC-DC regulated single output converter designed to provide a stable 12 V output from input voltages between 18 and 36 V. Delivering 1 W (12 V at 0.083 A) in a SIP package, this adapter/inverter is intended for low-power electronic applications where a small form factor, high isolation and RoHS compliance are important. The module offers 1500 VDC input-to-output isolation and weighs approximately 3 g, making it suitable for space-constrained and lightweight designs.

Advantages

The SPA01B-12 provides regulated 12 V output with low power consumption and a compact SIP package that simplifies board-level integration. High input-to-output isolation enhances safety and reduces interference between circuits. The wide input range allows operation from various 18–36 V sources, while RoHS compliance ensures adherence to environmental standards. Its small weight and size facilitate use in embedded systems and modules with limited space.

Suitable for

• Small electronic modules and signal converters
• Embedded systems and controllers requiring isolated 12 V supply
• Low-power instrumentation and sensor interfaces
• Battery-powered or vehicle systems with 18–36 V available

Key specifications

• Input voltage range: 18–36 V DC
• Output voltage: 12 V DC
• Output current: 0.083 A (maximum)
• Output power: 1 W
• Isolation voltage (input-to-output): 1500 V DC
• Package type: SIP (single in-line package)
• Compliance: RoHS
• Approximate weight: 3 g

How to use

Install the SPA01B-12 on the circuit board in the specified SIP footprint, observing correct polarity and recommended soldering practices for small modules. Connect an appropriate 18–36 V DC source to the input pins and take the regulated 12 V from the output pins. Ensure the load does not exceed the maximum output current of 0.083 A and provide adequate spacing or mounting to respect the isolation requirements. Verify thermal conditions in the intended enclosure since the converter is intended for low-power applications.

Recommendations

Use the SPA01B-12 where a low-power, isolated 12 V rail is required and the load stays within the 1 W rating. For reliable operation, avoid continuous operation at the maximum output current without confirming ambient temperature and ventilation. Maintain clearance distances and proper board layout to preserve the specified input-to-output isolation.