ATB2012-75011M

Balun Overview

The ATB2012-75011M is a surface-mount balun transformer manufactured by TDK Corporation. It operates within a frequency range of 50MHz to 1.2GHz, with specific operational parameters noted between 400MHz and 1.8GHz in some documentation. The component provides balanced and unbalanced impedance matching, both rated at 75 ohms. It features an insertion loss of approximately 2dB. The physical package is 0805 (2012 Metric), measuring 2.00mm in length, 1.20mm in width, and 1.20mm in thickness.

Balun Feature Summary

• Provides conversion between balanced and unbalanced signal paths for RF applications
• Designed for surface-mount technology using a compact 0805 package
• Supports wideband operation covering frequencies from 50MHz up to 1.2GHz

Balun Applications

• RF front-end circuits requiring impedance transformation
• Wireless communication modules operating in VHF/UHF bands
• Signal conditioning stages in broadband receivers

Balun Procurement Notes

Verify the exact suffix (e.g., -T000) against the manufacturer's official datasheet to ensure compatibility with specific tape-and-reel packaging requirements. Confirm that the 75-ohm impedance specification aligns with the target circuit design, as variations exist within the ATB series. Cross-reference the frequency range limits with system requirements to avoid performance degradation at band edges.

Balun Selection Notes

Select this component when a 75-ohm balanced-to-unbalanced transformation is required in a space-constrained layout. The 0805 footprint offers a balance between performance and board area. Ensure the operating frequency falls within the verified 50MHz to 1.2GHz range. Consider thermal management and soldering profiles compatible with standard SMD reflow processes for this specific package type.

Balun Part Context

This part belongs to TDK's ATB series of balun transformers, which are designed for RF signal integrity. The '2012' designation indicates the metric package size equivalent to 0805 imperial. The '75011' code typically denotes the specific impedance ratio and frequency characteristics defined by TDK's internal nomenclature for this family of components.

Balun Replacement Considerations

Direct substitutes may include other 75-ohm to 75-ohm baluns in 0805 packages from manufacturers like Murata or Johanson Technology. Verify that any alternative matches the 50MHz-1.2GHz frequency range and maintains similar insertion loss specifications. Check pinout compatibility if the replacement has different terminal configurations.