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Product Detailed Parameters
- Description：PWR XFMR SEMI-TORO 2.5VA TH
- Series：LPI
- Mfr：Signal Transformer
- Package：Box
- Type：Semi-Toroidal
- 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)：Dual
- Center Tap：No
- Power - Max：2.5VA
- Mounting Type：Through Hole
- Termination Style：PC Pin
- Size / Dimension：60.20mm L x 42.10mm W
- Height - Seated (Max)：18.30mm
- Voltage - Isolation：4000Vrms
- Weight：0.27 lb (122.47 g)
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Overview
The Signal Transformer 12-200-LPI is a power transformer designed for through-hole mounting. It features dual primary windings rated for 115 VAC and 230 VAC operation. The secondary configuration provides a center-tapped output of 12.6 VCT at 200 mA, with an additional 6.3 V winding available. The unit has a total power rating of 2.5 VA. Its physical dimensions are 12.6 mm in length, 2.5 mm in width, and it operates at standard frequencies.
Feature Summary
- Encapsulated laminated core construction for durability
- Dual primary winding capability for flexible voltage input
- Center-tapped secondary design for rectification applications
Applications
- Low-power AC to DC conversion circuits
- Control panel power supplies
- General purpose signal isolation
Procurement Notes
Verify the specific datasheet version for the 12-200-LPI to confirm exact pinout configurations and insulation class ratings. Ensure that the operating environment temperature range aligns with the component's thermal specifications. Cross-reference the package dimensions against the target PCB footprint to guarantee mechanical compatibility during assembly.
Selection Notes
Select this component when a compact, encapsulated transformer is required for low-power applications. The dual primary winding allows for direct connection to either 115 VAC or 230 VAC mains without rewiring. The center-tapped secondary is suitable for full-wave rectifier circuits requiring balanced positive and negative rails.
Part Context
This part belongs to the Signal Transformer semi-toroidal power transformer series. These components are characterized by their encapsulated design, which provides protection against environmental factors. The series offers various power ratings and voltage configurations to suit different electronic equipment requirements.
Replacement Considerations
Consult official substitution guides for equivalent parts from other manufacturers. Verify that any replacement matches the 2.5 VA rating, 12.6 VCT secondary specification, and through-hole mounting style. Confirm dimensional compatibility before implementation.
