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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 6.3V, Series 12.6V
- Current - Output (Max)：Parallel 400mA, Series 200mA
- 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-2.5-12B7 is a laminated power transformer designed for through-hole mounting. It features a 2.5 VA power rating with dual primary windings supporting 115V and 230V inputs. The unit includes dual secondary outputs without center taps, providing a series output voltage of 12.6 VAC at 200mA. Parallel operation allows for a maximum output current of 400mA. The component utilizes PC pin terminals for secure PCB attachment.
Feature Summary
- Dual primary winding configuration for versatile input voltage compatibility
- Dual secondary outputs enabling flexible series or parallel circuit connections
- Laminated core construction optimized for standard power applications
Applications
- General purpose AC to DC power supply circuits
- Equipment requiring isolated low-voltage AC sources
- Industrial control panel power distribution
Procurement Notes
Verify the specific datasheet version to confirm exact physical dimensions and terminal pitch before integration. Ensure the selected variant matches the required insulation class and regulatory compliance standards for your target market. Cross-reference the part number suffixes to confirm availability of RoHS-compliant manufacturing batches.
Selection Notes
Select this model when a compact 2.5 VA isolation barrier is required between mains and low-voltage stages. The dual secondary design offers flexibility for creating multiple voltage rails or increasing current capacity via parallel connection. Evaluate thermal management requirements based on the expected load duty cycle and ambient operating conditions.
Part Context
This component belongs to the 14A series of laminated transformers from Pulse Electronics Power. These units are engineered for general-purpose power conversion tasks where space efficiency and reliable electrical isolation are prioritized. The series supports various voltage configurations to accommodate diverse global power standards.
Replacement Considerations
Direct substitutes must match the 2.5 VA rating, 12.6VAC secondary specification, and through-hole footprint. Verify that alternative components maintain identical primary winding configurations and insulation ratings to ensure circuit safety and performance parity.
