PC-34-125

Power Transformers Overview

The PC-34-125 is a board-mount power transformer from the PC series, manufactured by Bel Signal Transformer. It features a single primary winding rated for 115 VAC and dual secondary windings providing 34 V center-tapped or 17 V outputs. The unit delivers a power rating of 4.4 VA with secondary current ratings of 125 mA and 250 mA. Designed for through-hole mounting, it operates within a frequency range of 50 to 500 Hz and supports an insulation class of B (130°C). Physical dimensions are 41.3 mm in length, 31.8 mm in width, and 34.92 mm in height.

Power Transformers Feature Summary

• Dual secondary winding configuration offering flexible voltage output options
• Through-hole mounting design for secure PCB integration
• Class B insulation rating supporting operation up to 130°C

Power Transformers Applications

• General purpose AC to AC power conversion
• Industrial control circuit power supplies
• Electronic equipment requiring isolated low-voltage DC sources

Power Transformers Procurement Notes

Verify the manufacturer part number PC-34-125 against official Bel Signal Transformer documentation to ensure component authenticity. Confirm that the required electrical specifications, including 115 VAC primary input and 4.4 VA power rating, align with the target application design. Check for RoHS compliance status and specific packaging requirements before finalizing procurement orders.

Power Transformers Selection Notes

Select this transformer when a compact board-mount solution is needed for converting 115 VAC to lower voltages. The dual secondary winding allows for either 34 V center-tapped or 17 V independent outputs, accommodating various rectification topologies. Ensure the PCB layout supports the specified through-hole pin spacing and physical footprint constraints.

Power Transformers Part Context

This component belongs to the PC series of power transformers, which are designed for general-purpose applications. The series offers various voltage and power configurations suitable for diverse electronic systems. The PC-34-125 specifically addresses needs for moderate power isolation with standard through-hole compatibility.

Power Transformers Replacement Considerations

Consult official cross-reference data for direct substitutes. Verify that any alternative component matches the 115 VAC primary, 4.4 VA rating, and 34 V CT/17 V secondary specifications. Ensure mechanical fit and thermal performance remain compatible with the existing design.

Power Transformers FAQ

What is the dielectric strength of the PC-34-125?

The dielectric strength is 1500 Vrms.

Does the PC-34-125 support frequencies above 60 Hz?

Yes, the transformer operates within a frequency range of 50 to 500 Hz.