SLP-1.9+

Overview

The Mini-Circuits SLP-1.9+ is a lumped LC low-pass filter designed for signal conditioning applications within the radio frequency spectrum. It operates with a cutoff frequency of 1.9 MHz, effectively passing signals from DC up to this limit while attenuating higher frequencies. The component features a characteristic impedance of 50 Ohms, ensuring compatibility with standard RF systems. It utilizes SMA connectors for termination and is housed in an FF55 package style. The unit supports a wide operating temperature range from -55°C to +100°C, making it suitable for diverse environmental conditions.

Feature Summary

• Lumped LC architecture provides effective low-pass filtering characteristics
• SMA connector interface ensures reliable coaxial connection
• Wide operational temperature range supports harsh environments

Applications

• RF signal conditioning circuits
• Base station filtering applications
• Test and measurement equipment input stages

Procurement Notes

Verify the specific datasheet revision when ordering, as electrical specifications may vary between updates. Confirm that the SMA termination style matches your system requirements. Ensure the operating environment stays within the specified -55°C to +100°C range to maintain performance integrity. Cross-reference the part number with official Mini-Circuits documentation to avoid confusion with similar models in the BLP or other series.

Selection Notes

Select the SLP-1.9+ when a sharp cutoff at 1.9 MHz is required for 50-ohm systems. Compare its lumped LC design against distributed alternatives if size constraints are critical. Consider the SMA interface compatibility with existing cabling infrastructure. Evaluate the thermal performance against expected ambient temperatures to ensure long-term reliability without derating.

Part Context

This component belongs to the Mini-Circuits SLP series of low-pass filters. It shares architectural similarities with the BLP-1.9+, though they differ in connector type and specific packaging details. The SLP series generally targets general-purpose RF filtering needs where standard SMA connectivity is preferred over BNC interfaces.

Replacement Considerations

The BLP-1.9+ serves as a functional substitute but utilizes BNC connectors instead of SMA. Verify mechanical fit and connector compatibility before swapping. No other direct pin-for-pin replacements are publicly confirmed for this specific model.