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Product Detailed Parameters
- Description：PWR XFMR LAMINATED 2.5VA 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 180mA, Series 90mA
- Primary Winding(s)：Dual
- Secondary Winding(s)：Dual
- Center Tap：No
- Power - Max：2.5VA
- Mounting Type：Through Hole
- Termination Style：PC Pin
- Size / Dimension：41.30mm L x 36.50mm W
- Height - Seated (Max)：28.60mm
- Voltage - Isolation：4000Vrms
- Weight：0.25 lb (113.4 g)
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Overview
The Signal Transformer 14A-2.5R-28 is a board-mount power transformer designed for single-phase applications. It features dual primary windings rated at 115 VAC and 230 VAC, providing versatile input compatibility. The secondary output delivers 28.0 VCT at 0.09 A, with a total power rating of 2.5 VA. Constructed for through-hole installation, the unit utilizes pin termination for secure PCB mounting. The component operates within standard industrial temperature ranges and complies with RoHS directives, ensuring environmental safety for modern electronic assemblies.
Feature Summary
- Dual primary winding configuration supports both 115 VAC and 230 VAC input voltages
- Center-tapped secondary output provides precise 28 VCT voltage regulation
- Through-hole pin termination ensures stable mechanical connection on printed circuit boards
Applications
- Single-phase AC to DC power supply circuits
- Low-power industrial control systems requiring isolated voltage transformation
- Consumer electronics utilizing Class 2 power sources
Procurement Notes
Verify that the specific order matches the manufacturer part number 14A-2.5R-28 from Bel Signal Transformer. Confirm that the required secondary current of 0.09 A aligns with the load requirements of the target application. Ensure the through-hole footprint dimensions are compatible with the intended PCB layout before finalizing procurement decisions.
Selection Notes
Select this component when a compact, low-power transformer is needed for 115/230 VAC inputs. The 2.5 VA rating suits applications with minimal current demands. Consider the physical size and pin spacing for board integration. This model is appropriate where UL approval and RoHS compliance are mandatory design constraints.
Part Context
This transformer belongs to the standard power transformer lineup manufactured by Bel Signal Transformer. It serves as a fundamental isolation component in electronic designs requiring step-down voltage conversion. The product line emphasizes reliability and regulatory compliance for global market deployment.
Replacement Considerations
Consult official distributor databases for cross-reference data. Verify electrical equivalence regarding VA rating, voltage ratios, and insulation class before substituting.
