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227D is listed in the Power Transformers range at ChipApex. The manufacturer field lists Hammond Manufacturing. Its product description is PWR XFMR SEMI-TORO 5VA TH. Review the specifications below when checking this part for your BOM.
Power Transformers specifications for 227D
- Description：PWR XFMR SEMI-TORO 5VA TH
- Series：227
- Mfr：Hammond Manufacturing
- Package：Bulk
- Type：Semi-Toroidal
- Voltage - Primary：115V
- Voltage - Secondary (Full Load)：Parallel 10V, Series 20V
- Current - Output (Max)：Parallel 500mA, Series 250mA
- Primary Winding(s)：Single
- Secondary Winding(s)：Dual
- Center Tap：No
- Power - Max：5VA
- Mounting Type：Through Hole
- Termination Style：PC Pin
- Size / Dimension：51.31mm L x 41.40mm W
- Height - Seated (Max)：26.67mm
- Voltage - Isolation：-
- Weight：0.38 lb (172.37 g)
Power Transformers datasheet and documents for 227D
Power Transformers Overview
The Hammond Manufacturing 227D is a PCB mount power transformer featuring an epoxy-cast construction. It belongs to the 227 Series and provides a 5VA power rating. The unit utilizes dual primary windings for 115 VAC input and dual secondary windings configured as a 20V center-tapped output at 250mA, or a 10V output at 500mA. Designed for through-hole installation, this component ensures reliable electrical isolation and performance in compact electronic assemblies.
Power Transformers Feature Summary
- Epoxy-cast encapsulation for mechanical stability
- Dual primary and secondary winding configuration
- Through-hole PCB mounting style
Power Transformers Applications
- Compact electronic equipment requiring isolated power
- Audio signal processing circuits
- General-purpose low-voltage power supplies
Power Transformers Procurement Notes
Verify the specific part number against official Hammond Manufacturing documentation to confirm current availability status. Cross-reference datasheet specifications with system requirements to ensure compatibility with voltage and current needs. Confirm RoHS compliance details directly from the manufacturer's latest release notes before finalizing procurement decisions.
Power Transformers Selection Notes
Select this transformer when a small form factor and low power consumption are required. The dual secondary winding option allows flexibility in voltage selection. Ensure the PCB layout accommodates the through-hole pin spacing and physical dimensions specified in the official dimensional drawings for proper integration.
Power Transformers Part Context
This component is part of the Hammond 226-227-228 series, which offers various power ratings and voltage configurations. The 227D specifically addresses applications needing a 5VA rating with center-tapped outputs. It serves as a specialized solution within the broader range of board-mount transformers designed for space-constrained designs.
Power Transformers Replacement Considerations
Consult official Hammond Manufacturing substitution guides for verified alternative part numbers. Do not assume functional equivalence with generic competitors without validating pinout, electrical parameters, and physical footprint against the original datasheet specifications.
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