LP-40-150

Power Transformers Overview

The LP-40-150 is a semi-toroidal power transformer from the Signal Transformer LP series, designed for board mount applications. It features a primary voltage rating of 115/230V at 50/60Hz and provides a secondary output of 40VCT @ 150mA or 20V @ 300mA. The unit has a power rating of 6VA and offers 1500Vrms dielectric strength isolation. It utilizes through-hole mounting and laminated construction to ensure reliable performance in standard AC power conversion tasks.

Power Transformers Feature Summary

• Semi-toroidal hum-bucking construction reduces electromagnetic interference
• High voltage isolation capability ensures safe operation in sensitive circuits
• Dual secondary winding configuration allows flexible parallel or series connection options

Power Transformers Applications

• Low-power AC power supply units
• Audio equipment signal conditioning
• Industrial control panel power distribution

Power Transformers Procurement Notes

Verify the specific datasheet version for the LP-40-150 to confirm mechanical dimensions and pinout compatibility with your PCB layout. Ensure that the thermal management requirements align with the 6VA power rating under your intended operating conditions. Cross-reference the manufacturer's latest documentation to confirm compliance with current environmental directives before finalizing procurement.

Power Transformers Selection Notes

Select this component when a compact, low-noise transformer is required for 50/60Hz applications. The semi-toroidal design is suitable where space constraints exist but higher efficiency than standard laminated cores is needed. Consider the 1500Vrms isolation if safety separation between primary and secondary circuits is mandatory for your system design.

Power Transformers Part Context

This part belongs to the LP series of power transformers manufactured by Signal Transformer. The series focuses on board-mount solutions for general-purpose power conversion. The LP-40-150 specifically addresses needs for moderate isolation and low noise in consumer and industrial electronics requiring stable AC voltage transformation.

Power Transformers Replacement Considerations

Direct substitutes may include other 6VA semi-toroidal transformers with identical 40VCT/20V secondary ratings and 115/230V primary inputs. Verify that replacement parts match the through-hole footprint and lead spacing exactly. Ensure equivalent dielectric strength and frequency response characteristics are maintained.