BV301D18012

Overview

The BV301D18012 is a 1.2VA encapsulated power transformer from Zettler Magnetics, designed for through-hole mounting. It features a single primary winding rated for 115V input and a dual secondary configuration providing two outputs of 18V each at 33mA. The unit utilizes EI30 laminations with a case dimension of 32.8x27.8mm and a maximum height of 22.3mm. Fully encapsulated under vacuum pressure, it ensures efficient operation within linear power supply modules.

Feature Summary

• Fully encapsulated construction under vacuum pressure for enhanced efficiency and protection
• Dual secondary windings providing isolated 18V outputs for balanced power distribution
• Through-hole mounting design compatible with standard PCB assembly processes

Applications

• Linear power supply modules requiring low voltage AC inputs
• Electronic devices needing isolated dual secondary power rails
• Compact consumer electronics utilizing encapsulated transformers

Procurement Notes

Verify the specific datasheet version to confirm insulation class and regulatory approvals such as UL or CSA before integration. Ensure the 115V primary rating matches the local mains frequency and voltage standards. Confirm that the 33mA secondary current capacity meets the load requirements of the target circuit design to prevent overheating.

Selection Notes

Select this component when a compact, encapsulated transformer is required for low-power applications. The EI30 lamination size offers a balance between physical footprint and magnetic performance. Consider the dual secondary output capability if separate positive and negative voltage rails are needed for operational amplifiers or logic circuits without additional rectification complexity.

Part Context

This model belongs to the BV Series of encapsulated power transformers from Zettler Magnetics. The series is characterized by vacuum-encapsulated laminated cores designed for smaller, more efficient linear power supplies. The BV301D18012 specifically addresses the need for reliable isolation in space-constrained electronic assemblies.

Replacement Considerations

Consult official cross-reference lists for direct equivalents. Verify that any substitute maintains the 1.2VA rating, 115V primary, and dual 18V secondary specifications. Ensure mechanical dimensions and pinout configurations match to avoid PCB redesign.