VLF-225+

Overview

The VLF-225+ is an LTCC low-pass filter designed for RF applications with a cutoff frequency of 350 MHz. It operates within a DC to 225 MHz passband and maintains a 50Ω impedance. The component features SMA connectors and exhibits an insertion loss of 2.21 dB. Its physical dimensions are 0.410 inches in diameter by 1.430 inches in length, utilizing a chassis mount configuration.

Feature Summary

• Utilizes Low Temperature Co-fired Ceramic (LTCC) technology for robust signal conditioning
• Provides effective high-frequency attenuation above the specified cutoff point
• Designed for inline module integration with standard SMA interfaces

Applications

• RF signal filtering in communication systems
• Interference suppression in microwave circuits
• Signal conditioning in test and measurement equipment

Procurement Notes

Verify the specific datasheet version to confirm exact electrical tolerances and connector specifications before procurement. Ensure compatibility with existing chassis mounting requirements and verify that the SMA interface matches the system design. Confirm RoHS compliance status if required by regulatory standards for the intended deployment environment.

Selection Notes

Select this component when a sharp cutoff near 350 MHz is required for 50Ω systems. The LTCC construction offers stability across temperature variations compared to discrete LC designs. Consider the physical size constraints as the chassis mount form factor requires adequate panel space for installation and thermal management during operation.

Part Context

Mini-Circuits manufactures this component as part of its extensive portfolio of RF and microwave filters. The VLF series utilizes LTCC technology to provide compact, reliable solutions for signal integrity. This specific model addresses needs for low-pass filtering where moderate bandwidth and precise cutoff characteristics are critical for system performance.

Replacement Considerations

Consult Mini-Circuits documentation for direct equivalents or updated series replacements. Verify that any substitute maintains the 350 MHz cutoff frequency and 50Ω impedance to ensure circuit compatibility without redesigning the surrounding RF architecture.