LFCN-630D+

Overview

The LFCN-630D+ is a ceramic low-pass filter manufactured by Mini-Circuits, designed for surface-mount integration. It features an 830 MHz cutoff frequency and operates with a 50 Ohm impedance. The component utilizes a compact 4-SMD, No Lead package configuration. Typical insertion loss is specified at 1 dB. The device exhibits high DC resistance to ground, exceeding 100 Mohms minimum. Performance data indicates attenuation characteristics across the stopband, with specific measurements recorded at frequencies such as 50 MHz and higher ranges up to several gigahertz.

Feature Summary

• Utilizes ceramic technology for passive low-pass filtering applications
• Designed for surface-mount assembly in compact electronic circuits
• Provides high isolation in the stopband region relative to the cutoff frequency

Applications

• RF signal conditioning in communication systems
• Harmonic suppression in transmitter output stages
• Interference rejection in receiver front-end circuits

Procurement Notes

Verify the exact part number suffix against official Mini-Circuits documentation to ensure correct packaging and tape-and-reel specifications. Confirm that the 4-SMD no-lead footprint matches your PCB design constraints. Check for any recent updates to the datasheet regarding thermal handling or soldering profiles specific to this ceramic variant.

Selection Notes

Select this component when a sharp roll-off near 830 MHz is required within a minimal footprint. Ensure the application environment supports the thermal characteristics of ceramic substrates. Compare insertion loss requirements against the typical 1 dB specification to verify system budget compatibility. Validate impedance matching at 50 Ohms for the target frequency band.

Part Context

This component belongs to the LFCN series of ceramic filters from Mini-Circuits, which are engineered for high-performance RF applications. The series offers various cutoff frequencies tailored for different bandwidth needs. The D+ suffix typically denotes a specific tape-and-reel packaging option suitable for automated surface-mount assembly processes.

Replacement Considerations

Consult Mini-Circuits official substitution guides for equivalent models with similar cutoff frequencies and package dimensions. Verify that alternative components maintain compatible impedance and insertion loss characteristics. Ensure physical footprint compatibility if direct board replacement is intended.