BV302D18028

Overview

The BV302D18028 is a 2.8VA encapsulated power transformer from Zettler Magnetics, designed for through-hole mounting. It features a 230V primary input operating at 50/60Hz and provides a dual 18V secondary output with a current rating of 70mA per winding. The unit utilizes an EI30 laminated core construction within a flooded encapsulation case measuring 32.8x27.8mm with a height of 29.8mm.

Feature Summary

• Encapsulated design for environmental protection
• Dual secondary windings for split voltage requirements
• Through-hole mounting configuration

Applications

• Low-power electronic equipment requiring isolated AC supply
• Control circuits needing dual voltage rails
• Industrial instrumentation power stages

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest datasheet to ensure compatibility with required insulation classes and safety certifications. Confirm that the encapsulation type meets the thermal and mechanical requirements of the target assembly environment before finalizing procurement orders.

Selection Notes

Select this component when a compact, encapsulated transformer is needed for 230V mains applications requiring dual 18V outputs. Ensure the PCB layout accommodates the specified case dimensions and through-hole pin spacing. Verify that the 70mA current rating per secondary winding satisfies the load demands of the downstream circuitry without exceeding thermal limits.

Part Context

This part belongs to the BV series of encapsulated power transformers by Zettler Magnetics. The series typically employs EI laminated cores and offers various VA ratings and voltage configurations. The BV302D18028 specifically represents the 2.8VA variant within the EI30_28 form factor family, providing standardized dimensions for space-constrained designs.

Replacement Considerations

Cross-reference with BV302S18028 for similar electrical specifications but verify if the 'S' suffix indicates a different encapsulation or safety classification. Check BV302D15028 for alternative secondary voltage options within the same physical footprint and VA rating.