LP-230-10

Power Transformers Overview

The Signal Transformer LP-230-10 is a semi-toroidal power transformer designed for through-hole mounting. It features dual primary windings rated for 115 VAC and 230 VAC configurations, offering flexibility in input voltage selection. The secondary output provides 115 VAC at 20 mA in parallel or 230 VAC at 10 mA in series. With a power rating of 2 VA, this component utilizes hum-bucking construction to minimize electromagnetic interference. Its compact physical dimensions are 47.5 mm in length, 39.6 mm in width, and 16.5 mm in height.

Power Transformers Feature Summary

• Semi-toroidal hum-bucking construction reduces magnetic noise
• Dual primary winding supports multiple input voltage standards
• Through-hole termination ensures secure PCB integration

Power Transformers Applications

• Industrial control panels requiring isolated low-power AC sources
• Instrumentation circuits needing stable secondary voltages
• Equipment with strict electromagnetic compatibility requirements

Power Transformers Procurement Notes

Verify the specific primary winding configuration required for your application, as the unit supports both parallel and series connections for different input voltages. Confirm that the through-hole pin spacing matches your printed circuit board layout before ordering. Ensure the 2 VA power rating meets the load demands of your downstream components to prevent overheating or performance degradation during continuous operation.

Power Transformers Selection Notes

Select this model when a compact, low-noise transformer is needed for sensitive analog or digital circuits. The dual primary design allows adaptation to various global mains frequencies and voltages without changing hardware. Consider the physical footprint constraints, as the semi-toroidal shape may require specific clearance on the assembly board compared to conventional laminated transformers.

Power Transformers Part Context

This component belongs to the LP series of flat head transformers manufactured by Signal Transformer, now part of Bel Fuse. These units are characterized by their semi-toroidal geometry, which offers higher efficiency and lower profile than traditional E-core designs. The series is widely used in applications where space savings and reduced acoustic noise are critical design factors.

Power Transformers Replacement Considerations

Direct substitutes must match the 2 VA rating, 115/230 VAC primary options, and 115/230 VAC secondary outputs. Verify that any replacement maintains the same through-hole pin pitch and overall envelope dimensions to fit existing footprints.