BV302S12010

Overview

The BV302S12010 is a 1VA encapsulated power transformer from Zettler Magnetics, designed for through-hole PCB mounting. It features a 230V primary winding and a single 12V secondary output capable of delivering 83mA. The unit utilizes an EI30 laminated core with dimensions of 32.8x27.8mm and a height of 22.3mm. It provides electrical isolation with a dielectric strength of 4.2kV between windings. This component operates at standard line frequencies and is suitable for general low-power AC-to-DC conversion applications requiring reliable galvanic isolation.

Feature Summary

• Encapsulated construction for environmental protection and mechanical stability
• EI30 laminated core design ensuring efficient magnetic coupling
• Through-hole mounting configuration for secure PCB integration
• High voltage isolation capability between primary and secondary circuits

Applications

• Low-power control circuitry in industrial equipment
• Signal isolation interfaces for measurement systems
• Power supply stages for small electronic devices
• Safety barrier implementations in consumer electronics

Procurement Notes

Verify the specific ordering suffix when sourcing components, as variations such as BV302S12010-ZU may exist within the product family. Confirm that the required insulation class and thermal ratings align with the target application's safety standards. Ensure that the through-hole footprint matches the printed circuit board layout constraints. Cross-reference manufacturer documentation to confirm compliance with relevant regulatory requirements for the intended market.

Selection Notes

Select this transformer when a compact 1VA isolation solution is required for 230VAC input systems. The EI30 core size offers a balance between physical footprint and power handling capacity for light loads. Consider the 4.2kV isolation rating if strict safety separation between mains and low-voltage sections is necessary. Evaluate the 22.3mm height constraint against available vertical clearance on the assembly board before finalizing the design.

Part Context

This component belongs to the EI30_1 series of encapsulated power transformers manufactured by Zettler Magnetics. The series typically includes variants with different secondary voltage outputs while maintaining the same primary specifications and core geometry. These transformers are engineered for reliability in continuous operation environments where space efficiency and electrical safety are prioritized over high power density.

Replacement Considerations

Direct substitutes must match the 1VA rating, 230V primary, 12V secondary, and 83mA current capacity. Verify that alternative parts maintain the EI30 core type and similar physical dimensions (32.8x27.8x22.3mm) to ensure mechanical compatibility. Check that the replacement device meets or exceeds the 4.2kV isolation requirement and supports through-hole mounting.