VLF-1800+

Overview

The VLF-1800+ is a low-pass filter manufactured by Mini-Circuits, designed for radio frequency signal conditioning applications. It features an SMA connector interface and operates within a passband extending to 1800 MHz. The component utilizes LTCC technology and is housed in a rugged uni-body construction with dimensions of 0.410 inches in diameter and 1.430 inches in length. Key electrical specifications include a cutoff frequency of 2.125 GHz and a bandwidth of 3.5 dB. The filter maintains a 50 Ohm impedance and supports a power handling capacity of 10W. It is RoHS compliant and protected under U.S. Patent 6,943,646.

Feature Summary

• Utilizes LTCC technology for temperature stability and reliable performance
• Features rugged uni-body construction for durability
• Provides excellent power handling capabilities
• Includes SMA connectors for direct integration

Applications

• RF signal conditioning
• Radio frequency systems
• Communication equipment filtering

Procurement Notes

Verify the specific datasheet version and environmental ratings (ENV28) prior to procurement. Confirm that the SMA interface and physical dimensions align with your PCB or cable assembly requirements. Ensure the operating temperature range (-55°C to 100°C) meets your system's ambient conditions. Cross-reference the part number with official Mini-Circuits documentation to confirm current production status and compliance certifications.

Selection Notes

Select this component when a low-pass filter with a 1800 MHz passband and 2.125 GHz cutoff is required. Consider the 10W power handling limit for high-power applications. The SMA interface dictates compatibility with standard RF connectors. Evaluate the physical size constraints against the 0.410 x 1.430 inch footprint. Verify impedance matching at 50 Ohms for your specific transmission line design.

Part Context

The VLF series from Mini-Circuits represents a line of low-cost, high-performance filters utilizing LTCC technology. These components are designed for general-purpose RF applications requiring stable performance across varying temperatures. The VLF-1800+ specifically addresses needs for filtering signals above 1800 MHz while maintaining signal integrity in the lower frequency range.

Replacement Considerations

Consult Mini-Circuits official substitution guides for verified alternatives. No public substitute part numbers are confirmed in the provided data.