These AC-DC 4-Pin Power Supplies with 3W Single Output from Vigortronix are transformers manufactured for use in applications where space is limited, thanks to their encapsulated design of the module which feature a 'built-in' transformer.
Weighing just 30g, these PCB modules are not only cost-effective, but also boast some excellent features, such as the Pri/Sec full isolation, low standby power (<0.15W), -25°C to +70°C operating temperature (full load) and low ripple & noise, while offering over power, over voltage and short circuit protection.