BLK-18W-N+

Overview

The BLK-18W-N+ is a coaxial inner DC block manufactured by Mini-Circuits, designed for RF applications spanning 50 MHz to 18 GHz. It features N-Female to N-Male connectors and maintains a 50 Ohm impedance. The component exhibits an insertion loss ranging from 0.24 dB to 0.75 dB across its operational bandwidth. It supports a breakdown voltage of 200 V at the input. The device operates within a temperature range of -65°C to 125°C.

Feature Summary

• Provides effective DC isolation while maintaining signal integrity in high-frequency RF circuits
• Supports Ku band test and measurement applications with wide frequency coverage
• Features robust construction suitable for demanding environmental conditions

Applications

• Ku band test and measurement systems
• RF circuit isolation requiring DC blocking
• General purpose RF signal processing

Procurement Notes

Verify the specific connector gender configuration (N-Female to N-Male) against system requirements before procurement. Confirm that the 200 V breakdown voltage rating meets the input voltage specifications of the target application. Ensure compatibility with the 50 MHz to 18 GHz frequency range for intended signal paths.

Selection Notes

Select this component when DC isolation is required within the 50 MHz to 18 GHz spectrum. Consider the N-type connector interface for compatibility with existing infrastructure. Evaluate the insertion loss characteristics against system sensitivity requirements. Verify thermal stability needs against the -65°C to 125°C operating range.

Part Context

This part belongs to Mini-Circuits' series of coaxial inner DC blocks. Similar variants include the BLK-18W-S+, which utilizes SMA connectors instead of N-type. These components are engineered for consistent performance in RF environments where DC bias must be blocked without affecting high-frequency signal transmission.

Replacement Considerations

The BLK-18W-S+ serves as a functional substitute with identical electrical specifications but uses SMA connectors. Ensure mechanical compatibility when substituting between N-type and SMA interfaces. No other direct substitutes are confirmed in public documentation.