229D20

Power Transformers Overview

The Hammond Manufacturing 229D20 is a semi-toroidal power transformer designed for PCB mounting. It features a low-profile construction with dual primary windings rated for 115 VAC and 230 VAC operation at 50 Hz or 60 Hz. The secondary output provides 20 VAC center-tapped configuration delivering 2.4 A, or 10 VAC delivering 4.8 A, resulting in a total power rating of 48 VA. The unit measures 76.2 mm in length, 50.8 mm in width, and 27.18 mm in height, weighing approximately 340 g. It utilizes solder pin termination for through-hole installation and operates within a temperature range of 0°C to +130°C.

Power Transformers Feature Summary

• Semi-toroidal core design optimized for compact low-profile applications
• Dual primary winding capability supporting universal voltage input selection
• Center-tapped secondary output configuration for flexible rectification circuits

Power Transformers Applications

• Low voltage AC power supply modules
• Audio equipment internal power distribution
• Industrial control panel instrumentation
• Consumer electronics requiring isolated AC sources

Power Transformers Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm packaging type and certification status. Ensure the selected variant matches the required electrical isolation standards and regulatory approvals for the target market. Cross-reference the datasheet revision date to guarantee compatibility with current manufacturing specifications.

Power Transformers Selection Notes

Select this component when a 48 VA capacity is required in a constrained vertical space. The dual primary winding allows adaptation to different regional mains voltages without changing hardware. Verify that the 2.4 A or 4.8 A secondary current ratings align with the downstream load requirements and thermal management capabilities of the host system.

Power Transformers Part Context

This model belongs to the Hammond 229 Series, which specializes in low-profile power transformers for printed circuit board integration. The series offers various power ratings and voltage configurations while maintaining consistent mechanical footprints suitable for dense electronic assemblies. The 229D20 represents a higher power option within this compact form factor category.

Power Transformers Replacement Considerations

Direct substitutes include other Hammond 229 series models with matching 48 VA ratings and similar dimensions. Verify that alternative part numbers maintain identical primary voltage ranges and secondary center-tap configurations to ensure circuit compatibility without redesign.