12-900-LPI

Overview

The Signal Transformer 12-900-LPI is a single-phase power transformer designed for board mount applications. It features a primary voltage rating of 115/230 VAC and operates at frequencies of 50/60 Hz. The secondary output provides 12.6 VCT at 900 mA or 6.3 V at 1.8 A, delivering a total power capacity of 12 VA. The unit exhibits a dielectric strength of 4000 Vrms, ensuring robust electrical isolation between windings. This component utilizes through-hole mounting technology with dual primary and secondary winding configurations to support international voltage standards.

Feature Summary

• Supports dual primary voltage inputs for global compatibility
• Provides center-tapped secondary output options
• Features high dielectric strength for safety isolation

Applications

• General purpose power supply circuits
• Industrial control systems requiring isolated power
• Consumer electronics power stages

Procurement Notes

Verify the specific datasheet version when ordering, as manufacturing specifications may evolve. Confirm that the through-hole package dimensions align with your PCB layout constraints prior to finalizing the design. Ensure that the thermal management strategy accounts for the transformer's power dissipation characteristics under full load conditions to maintain operational reliability.

Selection Notes

Select this model when a compact board-mount solution is required for low-power applications needing 12 VA capacity. The dual primary winding allows flexibility for both 115V and 230V input regions without changing components. Consider the physical footprint and lead spacing requirements against your assembly capabilities, as this is a through-hole device rather than a surface-mount alternative.

Part Context

This component belongs to the Signal Transformer series of standard power transformers. It is categorized as a semi-toroidal or similar core type designed for general-purpose use. The part number indicates specific electrical ratings distinct from other variants in the family, such as different voltage outputs or power levels, ensuring precise matching for intended circuit designs.

Replacement Considerations

Public records indicate that the 12-900-LPI has been discontinued and replaced by newer equivalents. Verify the exact substitute part number provided by the manufacturer before procurement, as direct pin-to-pin replacements may have updated electrical or mechanical specifications.