BV302D18010

Overview

The BV302D18010 is a 1VA encapsulated power transformer from Zettler Magnetics, designed for through-hole mounting. It features a 230V primary input and dual 18V secondary outputs, delivering 28mA per winding. The unit utilizes an EI30 laminated core with a 10.5mm height. Physical dimensions are 32.80mm length by 27.80mm width, with a maximum seated height of 22.30mm. Termination is achieved via PC pins.

Feature Summary

• Fully encapsulated construction under vacuum pressure for enhanced efficiency and compactness
• Dual secondary windings providing isolated 18V outputs
• Through-hole PC pin termination for printed circuit board integration

Applications

• Linear power supply circuits requiring low voltage isolation
• Electronic equipment utilizing Class 2 safety limits
• Control systems needing 230V AC to 18V AC conversion

Procurement Notes

Verify the specific datasheet version for electrical tolerances and insulation ratings before integration. Confirm that the 230V primary rating aligns with the target mains frequency of 50/60 Hz. Ensure PCB layout accommodates the 32.80mm x 27.80mm footprint and 22.30mm height clearance. Cross-reference the 1VA rating against peak load requirements to prevent saturation.

Selection Notes

Select this component when a compact, encapsulated transformer is required for low-power applications. The EI30 core size offers a balance between magnetic performance and physical volume. Dual 18V outputs suit bridge rectifier configurations or split-rail supplies. Verify compatibility with through-hole assembly processes and check regulatory compliance for the intended market.

Part Context

This part belongs to the BV series of laminated power transformers from Zettler Magnetics. The series is characterized by vacuum-pressure encapsulation, which reduces noise and improves thermal stability compared to open-frame designs. The EI30_1. Lam. designation indicates the specific core geometry and lamination thickness used in this model.

Replacement Considerations

Direct substitutes must match the 1VA rating, 230V primary, and dual 18V secondary configuration. Verify identical enclosure dimensions (32.8x27.8mm) and pin spacing for mechanical fit. Ensure equivalent insulation class and safety certifications are maintained during replacement.