TT1-6-KK81+

Overview

The TT1-6-KK81+ is a surface-mount RF transformer manufactured by Mini-Circuits, designed for balanced-to-balanced signal conversion. It operates within a frequency range of 4 kHz to 300 MHz and maintains a 50 Ohm impedance with a 1:1 ratio. The component features a gull-wing SMD package (KK81) measuring 7.62 mm in length, 6.86 mm in width, and 5.84 mm in height. It supports a maximum current rating of 30 mA and a power rating of 250 mW. The device functions reliably across an operating temperature range of -20°C to +85°C.

Feature Summary

• Provides balanced-to-balanced signal transformation for RF applications
• Utilizes a compact surface-mount gull-wing package for automated assembly
• Operates over a wide bandwidth from low audio frequencies to 300 MHz

Applications

• RF circuit design requiring impedance matching
• Signal processing systems utilizing the VHF and UHF bands
• Balun implementation in communication hardware

Procurement Notes

Verify the specific suffix designation when sourcing, as variants such as T1-6-KK81+ exist with different frequency specifications. Confirm that the required component matches the 4 kHz to 300 MHz operational range documented for the TT1-6-KK81+. Ensure compatibility with standard surface-mount reflow processes given the gull-wing lead configuration. Cross-reference the manufacturer's official datasheet to validate electrical parameters against system requirements before finalizing procurement decisions.

Selection Notes

Select this component when a wideband balanced-to-balanced transformer is required for frequencies extending up to 300 MHz. The 50 Ohm impedance specification makes it suitable for standard RF transmission lines. Consider the physical dimensions of the KK81 package to ensure adequate PCB real estate. Verify that the thermal operating range of -20°C to +85°C aligns with the environmental conditions of the intended application environment.

Part Context

This component belongs to the T1 series of RF transformers produced by Mini-Circuits. The series includes various models with differing frequency ranges and configurations. The TT1-6-KK81+ specifically addresses applications requiring operation down to very low frequencies compared to other high-frequency variants in the lineup. It serves as a passive linear component for signal integrity management in electronic circuits.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Variants such as T1-6-KK81+ share similar packaging but exhibit distinct frequency characteristics. Direct substitution requires verification of electrical performance curves and impedance matching capabilities against the original design specifications.