DPC-34-25

Overview

The DPC-34-25 is a laminated core power transformer from the PC series, designed for through-hole mounting. It features dual primary windings rated for 115 VAC and 230 VAC operation. The secondary configuration offers dual outputs of 17 VAC or 34 VAC center-tapped, supporting parallel currents of 50 mA or series currents of 25 mA. With a power rating of 1 VA, it operates within a frequency range of 50 Hz to 500 Hz. The unit measures 41.3 mm in length, 31.8 mm in width, and 34.92 mm in height, providing a dielectric strength of 1500 Vrms.

Feature Summary

• Laminated core construction minimizes energy loss and enhances operational efficiency across varying loads.
• Wide operating frequency range supports stable performance from 50 Hz to 500 Hz without output degradation.
• Dual primary winding design allows flexible connection to standard 115 VAC or 230 VAC supply lines.
• High dielectric strength ensures robust electrical isolation between windings for safety compliance.

Applications

• Low-power electronic equipment requiring isolated AC power conversion
• Industrial control systems utilizing 50-500 Hz signal frequencies
• Printed circuit board assemblies needing through-hole mounted transformers

Procurement Notes

Verify that the specific order matches the DPC-34-25 designation, as similar models like DPC-34-125 exist with different current ratings. Confirm the required secondary configuration (parallel vs. series) aligns with the system's voltage and current needs. Ensure the PCB layout accommodates the specified through-hole pin spacing and physical dimensions. Check for RoHS compliance requirements if applicable to the final assembly standards.

Selection Notes

Select this component when a 1 VA power rating is sufficient for the application. Choose DPC-34-25 over higher-current variants like DPC-34-125 if the load draws no more than 50 mA in parallel or 25 mA in series. Consider the physical size constraints against the 41.3 x 31.8 x 34.92 mm footprint. Ensure the operating environment stays within the specified temperature and frequency ranges for optimal performance.

Part Context

This transformer belongs to the PC series of miniature low-power signal transformers manufactured by Signal Transformer Inc. These components are engineered for printed circuit mount applications, offering a balance of compact size and reliable electrical isolation. The series is characterized by its versatility in primary voltage configurations and wide frequency tolerance, making it suitable for diverse industrial and commercial electronics.

Replacement Considerations

The DPC-34-125 is a related model within the same series but provides higher current capacity (125 mA/250 mA). Verify that the lower current rating of the DPC-34-25 meets the specific load requirements before substituting. No other direct cross-model replacements are confirmed in public documentation.