12.8-6

Overview

The Signal Transformer 12.8-6 is a laminated core power transformer designed for chassis mounting. It features a single primary winding rated for 115VAC input at 50/60Hz. The secondary output provides dual center-tapped voltages of 12.8VCT and 6.4VCT, delivering maximum currents of 6A and 12A respectively. With a total power rating of 76.8VA, this component utilizes a robust construction suitable for rectifier applications requiring reliable voltage conversion.

Feature Summary

• Laminated core construction for efficient magnetic coupling
• Chassis mount design for secure mechanical installation
• Dual center-tapped secondary windings for flexible rectifier configurations

Applications

• Rectifier circuits in power supplies
• General purpose AC to DC conversion systems
• Industrial control equipment power stages

Procurement Notes

Verify the specific datasheet version to confirm insulation class and regulatory compliance status such as RoHS3. Ensure the mounting hole pattern matches the chassis design prior to ordering. Confirm that the 115V primary rating aligns with the local mains supply frequency and voltage tolerance requirements for the intended application environment.

Selection Notes

Select this model when a compact 76.8VA transformer with dual center-tapped outputs is required. It is appropriate for applications needing 12.8VCT at 6A or 6.4VCT at 12A. Consider thermal management capabilities if operating near maximum load limits. Verify physical dimensions fit within the available enclosure space compared to higher VA alternatives.

Part Context

This component belongs to the Signal Transformer line of general-purpose power transformers. It serves as a standard solution for converting mains voltage to lower AC levels for subsequent rectification. The MPI series offers similar form factors but with varying power ratings, while this specific part number targets lower power density requirements.

Replacement Considerations

Direct substitutes may include other Signal Transformer models with identical pinouts and electrical ratings. Cross-reference part numbers from manufacturers like Dongan for equivalent laminated core designs. Ensure replacement units maintain the same chassis mounting footprint and terminal block configuration to avoid mechanical redesign.