TC1-1T RF Balun Transformer 0.4–500MHz 1:1 50Ω | 2 or 5 Pcs
TC1-1T RF Balun Transformer 0.4–500MHz 1:1 50Ω | 2 or 5 Pcs
TC1-1T RF Balun Transformer – Wideband 1:1 Balanced/Unbalanced Signal Converter
Get reliable, wideband RF signal conversion with the TC1-1T RF Balun Transformer. Covering an impressive frequency range of 0.4 to 500 MHz, this compact flux-coupled transformer delivers a precise 1:1 CT impedance ratio at 50Ω, making it an ideal component for RF circuit design, antenna matching, signal routing, and balanced-to-unbalanced conversion projects. Available in convenient packs of 2 or 5 pieces.
Key Specifications
- Model: TC1-1T
- Impedance Ratio: 1:1 CT (50Ω characteristic impedance)
- Frequency Range: 0.4 MHz – 500 MHz
- RF Power: 0.25W (rated) / 0.50W (max)
- DC Current: 30 mA
- Operating Temperature: -40°C to +85°C
- Dimensions: 5 × 4 × 3 mm (compact SMD package)
- Package Quantity: 2 Pcs or 5 Pcs
- Country of Origin: Made in Mainland China
Why Choose the TC1-1T?
- Wideband Performance: Operates across a broad 0.4–500 MHz range, suitable for HF, VHF, and UHF applications.
- Flux-Coupled Design: Ensures efficient, low-loss signal transfer between balanced and unbalanced circuits.
- Compact Form Factor: The tiny 5×4×3 mm SMD body fits easily onto PCBs with minimal footprint.
- Wide Temperature Tolerance: Performs consistently from -40°C to +85°C, suitable for demanding environments.
- Multi-Pack Value: Available in 2-piece and 5-piece packs — perfect for prototyping or production runs.
Typical Applications
- Antenna balun matching networks
- RF front-end circuits and transceivers
- Software-Defined Radio (SDR) projects
- Balanced/unbalanced impedance conversion
- Signal coupling and isolation in RF systems
- Amateur radio and test equipment
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Note: Please allow 2–3% dimensional variance due to manual measurement. Actual product color may vary slightly from images due to monitor display differences.
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Frequently Asked Questions
Q: What is the TC1-1T RF Balun Transformer used for?
A: The TC1-1T is a wideband 1:1 flux-coupled balun transformer used to convert signals between balanced and unbalanced transmission lines. It is commonly used in antenna matching networks, RF front-end circuits, Software-Defined Radio (SDR) builds, and amateur radio applications across a frequency range of 0.4 to 500 MHz.
Q: What impedance does the TC1-1T support?
A: The TC1-1T features a 1:1 CT impedance ratio with a 50Ω characteristic impedance, which is the standard impedance used in most RF and coaxial cable systems, making it highly compatible with typical RF equipment and circuits.
Q: Is this transformer suitable for SMD (surface-mount) PCB assembly?
A: Yes. The TC1-1T is a compact SMD component measuring just 5×4×3 mm, making it well-suited for surface-mount PCB assembly in space-constrained RF designs. Its small footprint is ideal for modern RF circuit boards.
Q: How many pieces are included in the pack?
A: This listing offers a choice of 2-piece or 5-piece packs, giving you flexibility for both prototyping and small production runs. Both pack sizes contain the same TC1-1T components.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.