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Product Detailed Parameters
- Description：PWR XFMR LAMINATED 2.5VA TH
- Series：International PC Plug-In
- Mfr：Pulse Electronics
- Package：Bulk
- Type：Laminated Core
- Voltage - Primary：115V, 230V
- Voltage - Secondary (Full Load)：Parallel 10V, Series 20V
- Current - Output (Max)：Parallel 240mA, Series 120mA
- Primary Winding(s)：Dual
- Secondary Winding(s)：Single, Multiple Taps
- Center Tap：No
- Power - Max：2.5VA
- Mounting Type：Through Hole
- Termination Style：PC Pin
- Size / Dimension：41.28mm L x 33.32mm W
- Height - Seated (Max)：28.58mm
- Voltage - Isolation：-
- Weight：0.25 lb (113.4 g)
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Overview
The Pulse Electronics 14A-2.5-20B19 is a laminated core power transformer designed for through-hole mounting. It features a primary voltage rating of 115 VAC and 230 VAC. The secondary winding offers parallel 10V and series 20V configurations with a current rating of 240mA. The unit has a power capacity of 2.5VA. Physical dimensions are 1.625 inches in length and 1.125 inches in height. The component is lead-free and RoHS compliant, weighing approximately 0.25 lb.
Feature Summary
- Laminated core construction for standard power transformation
- Through-hole termination style for PCB integration
- Dual primary voltage support for 115VAC and 230VAC operation
- RoHS compliant and lead-free manufacturing
Applications
- General purpose AC power supply circuits
- Electronic equipment requiring isolated power stages
- Industrial control systems utilizing laminated transformers
Procurement Notes
This component is officially classified as obsolete and no longer manufactured by Pulse Electronics. Verification of availability should focus on distributor inventory status or direct substitutes rather than new production units. Confirm end-of-life status before design finalization to ensure long-term supply chain stability.
Selection Notes
Engineers selecting this part must account for its discontinued status. Design reviews should prioritize alternative components with active production lifecycles. Verify that substitute parts match the required 2.5VA power rating, physical footprint, and electrical specifications to maintain system integrity without redesigning the PCB layout.
Part Context
The 14A-2.5-20B19 belongs to the Pulse Electronics power transformer family. It utilizes a laminated core architecture typical for general-purpose isolation applications. The specific model designation indicates its 2.5VA capacity and secondary voltage configuration options within the broader product line.
Replacement Considerations
Hammond Manufacturing part number 183E20 is listed as a direct substitute. Verify mechanical fit and electrical equivalence before adoption.
