BLP-21.4+

Overview

The Mini-Circuits BLP-21.4+ is a coaxial low-pass filter designed for RF applications. It features a cutoff frequency of 24.5 MHz and a passband extending to 22 MHz. The component operates at an impedance of 50 ohms, covering a frequency range from DC to 22 MHz in the passband. This inline module utilizes a BNC connector interface, ensuring compatibility with standard coaxial systems. The design supports high isolation in the stopband while maintaining low insertion loss within the operational bandwidth.

Feature Summary

• Coaxial construction for reliable signal integrity
• BNC connector interface for easy integration
• Low-pass filtering characteristic with defined cutoff

Applications

• Test and measurement equipment
• Video equipment signal conditioning
• Defense communications systems

Procurement Notes

Verify the specific suffix designation when ordering, as it may indicate packaging or variant differences not altering core function. Confirm connector type and impedance requirements match system specifications. Ensure environmental ratings align with deployment conditions. Cross-reference datasheet revision dates for latest performance curves. Validate availability through authorized distributors to guarantee component authenticity.

Selection Notes

Select this model when a sharp cutoff near 24.5 MHz is required for signals up to 22 MHz. The 50-ohm impedance suits most RF test setups. Consider the BNC interface for quick connection needs. Evaluate stopband attenuation requirements against application noise floors. Compare physical dimensions if space constraints exist within the assembly.

Part Context

This component belongs to the BLP series of coaxial low-pass filters from Mini-Circuits. The series offers various cutoff frequencies tailored for different RF bands. These filters are engineered for stability and consistent performance across temperature ranges. They serve as critical components in signal chain management for precision electronics.

Replacement Considerations

Direct substitutes include other Mini-Circuits BLP models with similar cutoff frequencies. Verify impedance matching and connector compatibility before swapping. Check stopband rejection levels to ensure equivalent noise suppression. Physical footprint differences may require mechanical adjustments during installation.