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Product Detailed Parameters
- Description：PWR XFMR LAMINATED 30VA TH
- Series：One-4-All™
- Mfr：Signal Transformer
- Package：Box
- Type：Laminated Core
- Voltage - Primary：115V, 230V
- Voltage - Secondary (Full Load)：Parallel 14V, Series 28V
- Current - Output (Max)：Parallel 2.12A, Series 1.06A
- Primary Winding(s)：Dual
- Secondary Winding(s)：Dual
- Center Tap：No
- Power - Max：30VA
- Mounting Type：Through Hole
- Termination Style：PC Pin
- Size / Dimension：66.70mm L x 55.50mm W
- Height - Seated (Max)：39.70mm
- Voltage - Isolation：4000Vrms
- Weight：1.2 lbs (544.3 g)
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Overview
The Signal Transformer 14A-30-28 is a laminated core power transformer rated for 30VA maximum power. It features dual primary windings supporting 115VAC and 230VAC inputs at 50/60Hz. The secondary configuration provides 28VCT or 14V outputs with current ratings of 1.06A (center-tapped) or 2.12A (parallel). Designed for through-hole mounting, it measures 48.4mm in length, 40.4mm in width, and 36.9mm in height.
Feature Summary
- Laminated core construction for reliable power conversion
- Dual primary winding capability for 115VAC and 230VAC operation
- Flexible secondary output options including center-tapped and parallel configurations
Applications
- General purpose AC to DC power supply circuits
- Industrial control panel power distribution
- Electronic equipment requiring isolated low voltage DC sources
Procurement Notes
Verify that the specific order matches the required secondary configuration, as the part supports both center-tapped and parallel connections. Confirm input voltage requirements align with the dual primary winding specifications. Ensure mechanical clearance accommodates the specified physical dimensions for through-hole installation on the target PCB.
Selection Notes
Select this component when a 30VA rating is necessary for applications requiring flexible secondary voltage arrangements. The dual primary design simplifies global deployment by accommodating different mains voltages without changing hardware. Consider the physical footprint constraints, as the through-hole package requires specific board space for mounting and lead clearance.
Part Context
This model belongs to the Signal Transformer 14A series of laminated power transformers. These components are designed for general-purpose isolation and voltage transformation in electronic systems. The series offers various power ratings and secondary configurations to suit diverse industrial and commercial power supply needs.
Replacement Considerations
The Bel Signal Transformer DST-5-28 is documented as a similar alternative. Verify compatibility regarding the 12VA power rating difference and specific pinout alignment before substitution.
