TC9-1+

Product Overview

Mini-Circuits TC9-1+ provides balanced/unbalanced RF conversion across 2 MHz to 200 MHz in a compact surface-mount implementation. The 1:9 ratio lets a conventional 50 Ω system interface drive or receive a differential port with the intended impedance transformation. Confirmed selection limits include insertion loss of 3 dB maximum, return loss of 6.08 dB minimum, phase balance of 1°.

The specified range is aimed at low-frequency IF, HF and VHF signal chains where transformer isolation and controlled impedance conversion are required over a broad bandwidth. This ordering code uses the standard mechanical option for the family and should be laid out with short, symmetric balanced traces. The installed result also requires the published land pattern and electrically symmetrical balanced connections.

Key Features

• Manufacturer: Mini-Circuits
• Part Number: TC9-1+
• Product Category: RF Balun / RF Transformer
• Device Type: high-ratio core-and-wire RF balun transformer
• Frequency Range: 2 MHz to 200 MHz
• System / Port Impedance: 50 Ω system
• Impedance Ratio: 1:9
• Insertion Loss: 3 dB maximum
• Return Loss: 6.08 dB minimum
• Phase Balance / Unbalance: 1°
• Package / Case: 5-SMD module
• Mounting Type: Surface mount

Applications

• High-ratio impedance matching for balanced receiver or amplifier stages
• Balanced mixer and push-pull amplifier networks
• Wideband instrumentation and IF signal paths

Quality & Sourcing

Antrex Electronics can support sourcing of TC9-1+ for production, repair and shortage requirements. Incoming verification should compare the exact ordering code, frequency band, impedance relationship, package style and any center-tap or suffix-specific configuration. A part from the same transformer family should not be substituted solely because its headline bandwidth overlaps.