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F20-120
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Product Detailed Parameters
- Description：PWR XFMR LAMINATED 2.5VA TH
- Series：Split Pack™, Class 2/3, F
- Mfr：Triad Magnetics
- Package：Box
- Type：Laminated Core
- Voltage - Primary：115V
- Voltage - Secondary (Full Load)：Parallel 10V, Series 20V
- Current - Output (Max)：Parallel 240mA, Series 120mA
- Primary Winding(s)：Single
- Secondary Winding(s)：Dual
- Center Tap：No
- Power - Max：2.5VA
- Mounting Type：Through Hole
- Termination Style：PC Pin
- Size / Dimension：34.93mm L x 28.58mm W
- Height - Seated (Max)：30.15mm
- Voltage - Isolation：2500Vrms
- Weight：0.25 lb (113.4 g)
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Overview
The Triad Magnetics F20-120 is a board-mount power transformer featuring a split bobbin design with a single primary and dual secondary winding configuration. It operates at a maximum power of 2.5 VA, providing an output voltage of 20.0 Vct at 120 mA. The unit accepts a primary input of 115V at 50/60 Hz. Key electrical specifications include PC pin termination for through-hole mounting and dimensions of 34.93mm in length by 28.58mm in width.
Feature Summary
- Split bobbin architecture eliminates electrostatic shielding requirements
- Nonconcentrically wound primaries and secondaries side-by-side
- Dual secondary configuration available for flexible circuit integration
Applications
- PC board applications requiring low capacitive coupling
- Class 2 power supply circuits
- General electronic equipment utilizing PCB mount transformers
Procurement Notes
Verify the specific ordering suffix to confirm functional variations such as center tap availability or voltage ratings. Confirm that the component meets Class 2 safety standards if required by the target application. Ensure the purchase order matches the exact part number designation to avoid discrepancies in winding configurations or mounting styles.
Selection Notes
Select this model when a split bobbin design is necessary to reduce electrostatic shielding costs. The nonconcentric winding structure offers versatility for PCB layouts compared to standard secondary-on-top-of-primary designs. Consider the 2.5 VA power rating and 115V primary input compatibility with the system's power requirements.
Part Context
The F20-120 belongs to the Triad Split Pack series, which utilizes a versatile split bobbin construction. This series is designed for PCB applications where low capacitive coupling is critical. The family includes various VA ranges and voltage configurations, all sharing the nonconcentrically wound primary and secondary layout.
Replacement Considerations
F20-300: Single primary and dual secondary split bobbin design operating with 115V input.
