T2.5-6-KK81+

Product Overview

T2.5-6-KK81+ is a low-frequency broadband transformer with a 1:2.5 impedance ratio and a 10 kHz to 100 MHz operating range. The non-unity ratio is useful when a 50 Ω unbalanced network must be coupled to a differential load whose optimum impedance is higher than a standard 1:2 transformer would provide.

The device is housed in the KK81 surface-mount package and carries a 250 mW rating. Its bandwidth covers instrumentation, baseband-adjacent coupling, HF and intermediate-frequency circuitry; winding orientation and the exact 1:2.5 ratio should be preserved when it is used in a tuned or gain-critical network.

Key Features

• Manufacturer: Mini-Circuits
• Part Number: T2.5-6-KK81+
• Product Category: RF Balun / RF Transformer
• Device Type: KK81-packaged 1:2.5 core-and-wire RF transformer
• Frequency Range: 0.01 MHz to 100 MHz
• System / Port Impedance: 50 Ω
• Impedance Ratio: 1:2.5
• RF Power: 0.25 W
• Package / Case: KK81, approximately 7.62 × 6.86 × 5.84 mm
• Mounting Type: Surface mount

Applications

• Low-frequency and IF impedance matching
• Push-pull amplifier and balanced mixer coupling
• Broadband instrumentation paths requiring a 1:2.5 transformation

Quality & Sourcing

Antrex Electronics can assist with sourcing T2.5-6-KK81+ for legacy and current RF assemblies. Transformer substitutions should match the winding ratio, operating band, power/current limits, pin configuration and package footprint.