VLF-320+

Overview

The VLF-320+ is an LTCC low-pass filter designed for RF signal conditioning. It operates from DC to a cutoff frequency of 320 MHz with a 50Ω impedance. The component features SMA connectors and provides a cutoff at 460 MHz with 3.07 dB bandwidth. Insertion loss is specified at 0.83 dB, ensuring minimal signal attenuation in the passband. It supports a maximum operating temperature of +100°C and handles up to 3.5W power at elevated temperatures.

Feature Summary

• Utilizes LTCC technology for compact, rugged construction
• Provides effective low-pass filtering with defined cutoff characteristics
• Features SMA connectors for reliable in-line integration

Applications

• RF signal conditioning in communication systems
• Harmonic suppression in transmitter outputs
• Interference filtering in receiver front-ends

Procurement Notes

Verify the exact datasheet revision and connector type before procurement, as documentation may vary. Confirm that the SMA interface matches your system requirements. Ensure thermal management plans account for the derating curve at ambient temperatures above standard conditions to prevent permanent damage.

Selection Notes

Select this component when a sharp cutoff near 320 MHz is required with low insertion loss. The 50Ω impedance suits standard RF infrastructure. Consider the physical size and SMA connectivity for PCB layout constraints. Verify power handling capabilities against peak signal levels in the specific application environment.

Part Context

This part belongs to the VLF series of coaxial low-pass filters from Mini-Circuits. These components are engineered for robust performance in demanding RF environments. The series emphasizes reliability through uni-body construction, suitable for various commercial and industrial applications requiring precise frequency control.

Replacement Considerations

Check for direct substitutes within the VLF series or comparable LTCC filters from other manufacturers. Ensure replacement parts match the 50Ω impedance, SMA connector type, and cutoff frequency specifications to maintain system integrity without redesign.