NCS4-442+

Balun Overview

The NCS4-442+ is a surface-mount RF transformer manufactured by Mini-Circuits, designed for broadband applications. It operates within a frequency range of 3300 MHz to 4200 MHz and provides a 1:4 impedance transformation ratio. The component features a nominal impedance of 50 Ohms and utilizes LTCC technology for compact integration. It is housed in a GE0805C-1 case style, suitable for SMD/SMT board mounting. The device supports an operating temperature range from -55°C to +100°C and is RoHS compliant.

Balun Feature Summary

• Provides 1:4 impedance transformation for balanced-to-unbalanced signal conversion
• Utilizes Low Temperature Co-fired Ceramic (LTCC) technology for high reliability
• Designed for space-qualified applications with robust environmental tolerance

Balun Applications

• Space-qualified RF systems requiring balanced-to-unbalanced conversion
• Broadband RF front-end circuits operating between 3.3 GHz and 4.2 GHz
• Microwave communication equipment utilizing surface-mount assembly

Balun Procurement Notes

Verify the specific datasheet version and electrical test data prior to procurement. Confirm that the GE0805C-1 package dimensions align with the target PCB footprint. Ensure the application environment remains within the specified -55°C to +100°C operating temperature range. Check for any required reference demo boards, such as TB-NCS4-442+, for initial validation. Validate compliance requirements against current project specifications.

Balun Selection Notes

Select this component when a 1:4 impedance ratio is required within the 3.3–4.2 GHz band. The LTCC construction offers stability for microwave frequencies. Consider the surface-mount form factor for automated assembly processes. Evaluate thermal management needs given the wide operating temperature range. Ensure the 50 Ohm system impedance matches the surrounding circuit design for optimal performance.

Balun Part Context

This part belongs to the NCS series of RF transformers from Mini-Circuits, which are engineered for high-frequency applications. The NCS4-442+ specifically addresses the need for balanced-to-unbalanced conversion in the C-band and upper Ku-band ranges. It complements other Mini-Circuits components like the NCS2-232+ by offering different impedance ratios and frequency coverage for diverse RF system architectures.

Balun Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs before considering alternative manufacturers or models.