ADTT1-1+

Balun Overview

The ADTT1-1+ is a surface-mount RF transformer manufactured by Mini-Circuits, designed for broadband applications. It operates within a frequency range of 0.3 MHz to 300 MHz and features a 1:1 turns ratio with 50 Ohm primary and secondary impedances. The component utilizes core and wire construction housed in a CD542 package style. Electrical specifications include a typical insertion loss of approximately 0.6 dB at 0.3 MHz and return loss exceeding 18 dB across the band. It supports a maximum DC current of 30 mA and a power rating of 250 mW, functioning reliably between -40°C and +85°C.

Balun Feature Summary

• Provides broadband signal transformation from 0.3 MHz to 300 MHz
• Features 1:1 impedance matching with 50 Ohm ports
• Utilizes robust core and wire construction for stability

Balun Applications

• RF signal coupling in communication systems
• Impedance matching networks for broadband circuits
• Balun applications requiring common-mode rejection

Balun Procurement Notes

Verify the specific suffix designation against the manufacturer datasheet to ensure correct packaging and performance characteristics. Confirm that the CD542 package dimensions align with PCB layout constraints. Check RoHS compliance status through official documentation before integration into regulated assemblies.

Balun Selection Notes

Select this component when a wideband 1:1 transformer is required for frequencies up to 300 MHz. Ensure the application does not exceed the 30 mA DC current limit or 250 mW power rating. Consider the surface-mount form factor for automated assembly processes and space-constrained designs.

Balun Part Context

The ADTT1-1+ belongs to Mini-Circuits' line of RF transformers, specifically engineered for general-purpose broadband use. It serves as a passive component for signal integrity management in radio frequency environments. The device complements other Mini-Circuits products like the TC1 series but offers distinct frequency coverage suitable for lower RF and IF bands.

Balun Replacement Considerations

The TC1-1TX+ is a documented alternative within the same product family offering similar surface-mount functionality.