BV202S18005

Overview

The BV202S18005 is an encapsulated power transformer manufactured by Zettler Magnetics, designed for through-hole PCB mounting. It features a single primary winding rated for 230V AC input and a single secondary winding providing 18V output at a maximum current of 27.8mA. The unit has a power rating of 0.5VA and utilizes an EE20 core configuration. Mechanical dimensions are approximately 23.0mm x 24.0mm with a height of 19.5mm. The thermal class is specified as T 50B.

Feature Summary

• Encapsulated construction for environmental protection
• Single primary to single secondary winding configuration
• Through-hole mounting for printed circuit boards

Applications

• Low-power electronic control circuits
• Signal isolation in 230V AC systems
• Power supply stages for small appliances

Procurement Notes

Verify the specific voltage ratings and physical dimensions against your design requirements before integration. Confirm that the 230V primary specification matches your local mains frequency and voltage standards. Ensure the PCB layout accommodates the through-hole pin spacing and the overall footprint of the encapsulated case. Check for any regional certification marks required for your target market.

Selection Notes

Select this component when a compact, low-power isolation solution is needed for 230V AC applications. The 0.5VA rating limits its use to low-current loads. Consider the EE20 core size constraints and the specific 18V secondary requirement. Verify that the thermal class T 50B meets the operating temperature conditions of the final assembly environment.

Part Context

This part belongs to the BV series of encapsulated power transformers from Zettler Magnetics. The series typically uses EE20 laminations and offers various voltage combinations. These transformers are generally intended for general-purpose isolation and power conversion in consumer and industrial electronics where space is limited.

Replacement Considerations

Direct substitutes must match the 0.5VA rating, 230V primary, 18V secondary, and 27.8mA secondary current specifications. Verify that alternative components share the same EE20 core type and similar mechanical dimensions to fit existing PCB footprints. Ensure equivalent thermal and electrical insulation ratings.