BFCN-5200+

Overview

The BFCN-5200+ is a surface-mount LTCC bandpass filter manufactured by Mini-Circuits. It operates with a center frequency of 5.2 GHz and covers a passband from 4250 to 6300 MHz. The component features a 50 Ohm impedance and provides 1.8 dB insertion loss within the passband. It offers 23 dB lower stopband rejection and 21 dB upper stopband rejection. The device utilizes a 4-SMD, no-lead package with a maximum height of 1.04 mm.

Feature Summary

• Utilizes Low-Temperature Co-fired Ceramic (LTCC) technology for compact surface-mount integration
• Provides precise signal conditioning through defined bandpass filtering characteristics
• Designed for high isolation with specified lower and upper stopband rejection levels

Applications

• S-band upconverter assemblies
• Wireless communication systems operating near 5.2 GHz
• RF signal chain filtering in test equipment

Procurement Notes

Verify the specific datasheet revision when sourcing, as Mini-Circuits may update mechanical dimensions or electrical tolerances over time. Confirm that the 4-SMD no-lead package matches your PCB footprint requirements. Ensure the 50 Ohm system impedance aligns with your circuit design to maintain optimal performance and minimize reflection losses during implementation.

Selection Notes

Select this component when a narrow bandpass response centered at 5.2 GHz is required. The LTCC construction supports reliable operation in space-constrained designs due to its small form factor. Consider the 1.8 dB insertion loss impact on overall link budget. This filter is suitable for applications requiring moderate stopband attenuation without the complexity of tunable alternatives.

Part Context

The BFCN series represents Mini-Circuits' line of ceramic bandpass filters built using LTCC processes. These components are designed to replace bulkier traditional cavity filters while maintaining stable performance across temperature variations. The series offers various center frequencies to suit different RF applications, providing a balance between size, cost, and electrical performance for mass production environments.

Replacement Considerations

Check for direct cross-references from other manufacturers offering identical 5.2 GHz center frequency and 4-SMD package dimensions. Verify that substitute components meet the same 50 Ohm impedance and insertion loss specifications to ensure circuit compatibility without redesign.