40-60-LPI

Power Transformers Overview

The Signal Transformer 40-60-LPI is a single-phase power transformer designed for surface or through-hole mounting. It features a primary voltage rating of 115 VAC and 230 VAC, with a secondary configuration offering 40 VCT at 60 mA and 20 V at 120 mA. The unit has a power rating of 2.5 VA and operates at 50/60 Hz frequencies. Constructed as a laminated, encapsulated transformer, it provides reliable electrical isolation for standard power conversion applications.

Power Transformers Feature Summary

• Encapsulated construction for environmental protection
• Laminated core design for efficient magnetic coupling
• Dual primary voltage capability for global compatibility

Power Transformers Applications

• General purpose AC power supply circuits
• Industrial control panel power distribution
• Consumer electronics internal power stages

Power Transformers Procurement Notes

Verify the specific datasheet version to confirm mechanical dimensions and pinout configurations before integration. Ensure that the operating frequency matches the system requirements of 50 or 60 Hz. Confirm that the thermal environment remains within the specified limits for encapsulated transformers during continuous operation.

Power Transformers Selection Notes

Select this model when a compact, low-power solution is required for isolating mains voltage from low-voltage DC stages. The 2.5 VA rating suits light loads, while the dual secondary options provide flexibility for different rectification needs. Consider the physical size constraints and mounting style compatibility with the target PCB or chassis design.

Power Transformers Part Context

This component belongs to the standard power transformer lineup from Signal Transformer, a division of Bel Fuse. These units are widely used in legacy and modern designs requiring simple, robust AC-to-AC transformation without complex switching topologies. The part number indicates specific voltage and frequency characteristics distinct from other series.

Power Transformers Replacement Considerations

Direct replacements must match the 2.5 VA power rating, 115/230 VAC primary input, and 40VCT/20V secondary outputs. Verify that substitute parts maintain the same encapsulation type and mounting footprint to ensure mechanical fit.