BV302S18018

Overview

The BV302S18018 is a 1.8VA encapsulated power transformer from Zettler Magnetics, designed for through-hole mounting. It features a single primary winding rated for 230VAC input and a secondary output of 18V at 100mA. The unit utilizes an EI30 laminated core construction with a dielectric strength of 4.2kV. Physical dimensions are approximately 32.8mm x 27.8mm in footprint with a maximum height of 24.5mm. It complies with RoHS3 standards.

Feature Summary

• Encapsulated design suitable for LED lighting and electric metering applications
• Through-hole termination style for PCB integration
• High dielectric isolation capability for safety compliance

Applications

• LED lighting systems
• Electric metering devices
• Motor controls
• Thermostats

Procurement Notes

Verify the specific datasheet version to confirm insulation class and temperature ratings (Ta 40/B) prior to final design approval. Ensure that the through-hole pin configuration matches the target PCB layout. Confirm regulatory compliance status, including RoHS3 and REACH, against current project requirements. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity and traceability of the component batch.

Selection Notes

Select this component when a compact 1.8VA isolated power source is required for low-power AC-DC conversion. The 230V primary rating suits direct mains connection in regions with compatible voltage standards. Consider the physical envelope size constraints, as the encapsulated case measures 32.8mm by 27.8mm. This transformer is appropriate for applications demanding robust mechanical protection and high isolation voltage without requiring complex external shielding.

Part Context

This model belongs to the BV Series of encapsulated power transformers from Zettler Magnetics. The series is characterized by its use of EI30 laminations and standardized encapsulation for durability. It serves as a fundamental magnetic component for off-line power supplies and SMPS architectures within consumer and industrial electronics sectors.

Replacement Considerations

Direct substitutes include other BV series variants such as BV302S24018 or BV301S24018, provided the voltage and current specifications align with the circuit design. Verify that any replacement maintains the same EI30 core size and through-hole pinout geometry to ensure mechanical compatibility.