PE2818S-I-2307501

Power Transformers Overview

The PE2818S-I-2307501 is a 3VA laminated core power transformer designed for PCB mounting. It features epoxy resin encapsulation for safety and environmental protection. The primary voltage is 230V AC at 50Hz, with an isolation voltage of 3.75KV tested for 1 minute. Secondary output options include 6V to 24V variants; the specific suffix '7501' indicates a 7.5V secondary winding rated at approximately 400mA. Leakage inductance is ≤30%, temperature rise ≤18℃, and no-load power consumption ≤0.5W. Operating temperature range is -30℃ to +70℃.

Power Transformers Feature Summary

• Epoxy sealed construction for enhanced safety and durability
• Compact EI core design suitable for direct PCB integration
• High isolation voltage capability ensuring user safety

Power Transformers Applications

• Industrial control system power supplies
• Instrumentation equipment internal power
• PCB board isolation applications

Power Transformers Procurement Notes

Verify the secondary voltage and current rating against the full part number suffix, as variations exist within the PE2818S-I series. Confirm that the 230V primary specification matches your local mains frequency and voltage standards. Ensure PCB footprint compatibility with the pin configuration before ordering.

Power Transformers Selection Notes

Select this component when a compact, isolated power source is required for low-power electronics. The 3VA rating suits small signal circuits rather than high-power loads. Consider the thermal performance limits if operating near the upper temperature boundary.

Power Transformers Part Context

This model belongs to the YHDC/PowerUC PE series of encapsulated transformers. These units are widely used in consumer and industrial electronics where space constraints and safety regulations necessitate a robust, isolated power conversion solution on a printed circuit board.

Power Transformers Replacement Considerations

Direct substitutes may include other 3VA EI28 series transformers from manufacturers like Mean Well or TDK, provided they match the 230V primary and 7.5V secondary specifications. Verify pinout and physical dimensions to ensure mechanical fit.