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Product Detailed Parameters
- Description：PWR XFMR SEMI-TORO 12VA TH
- Series：LPI
- Mfr：Signal Transformer
- Package：Box
- Type：Semi-Toroidal
- Voltage - Primary：115V, 230V
- Voltage - Secondary (Full Load)：Parallel 5V, Series 10V
- Current - Output (Max)：Parallel 2.4A, Series 1.2A
- Primary Winding(s)：Dual
- Secondary Winding(s)：Dual
- Center Tap：No
- Power - Max：12VA
- Mounting Type：Through Hole
- Termination Style：PC Pin
- Size / Dimension：66.80mm L x 55.60mm W
- Height - Seated (Max)：26.60mm
- Voltage - Isolation：4000Vrms
- Weight：0.75 lb (340.19 g)
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Overview
The Signal Transformer 10-1200-LPI is a semi-toroidal power transformer designed for through-hole mounting. It features dual primary windings rated for 115 VAC and 230 VAC operation at 50 Hz or 60 Hz frequencies. The secondary configuration provides a 10 VCT output at 1.2 A when wired in series, or parallel 5 V outputs at 2.4 A each. With a maximum power rating of 12 VA, the unit measures 26.6 mm in height, ensuring compatibility with low-profile circuit board assemblies.
Feature Summary
- Semi-toroidal core construction for efficient magnetic coupling
- Dual primary winding capability for versatile voltage input selection
- Low-profile physical design suitable for space-constrained applications
Applications
- General purpose AC to DC power supply circuits
- Industrial control panel power distribution
- Consumer electronics internal power regulation
Procurement Notes
Verify that the specific application requires the semi-toroidal form factor and through-hole termination style. Confirm that the 12 VA power rating meets the load requirements without exceeding thermal limits. Ensure the PCB layout accommodates the specified dimensions and pin spacing for secure mechanical attachment during assembly processes.
Selection Notes
Choose this component when a compact power solution is needed for standard line voltages. The dual secondary options allow flexibility in generating different voltage rails from a single transformer. Consider the operating frequency range to ensure compatibility with the local power grid standards and intended operational environment.
Part Context
This model belongs to the international low-profile transformer series by Signal Transformer. These components are engineered to provide reliable power conversion while minimizing vertical space usage on printed circuit boards. The series is widely used in applications where standard transformers would exceed height restrictions.
Replacement Considerations
Direct substitutes must match the 12 VA rating, 115/230 VAC primary inputs, and 10 VCT secondary output. Verify that alternative parts maintain the same semi-toroidal shape and through-hole mounting characteristics to fit existing footprints.
