HFCQ-3652+

Overview

The HFCQ-3652+ is a high-pass ceramic filter manufactured by Mini-Circuits, designed for microwave applications. It operates within a frequency range of 36.5 GHz to 50 GHz with a center frequency of 43.25 GHz. The component features a 50 Ohm impedance and utilizes an LTCC construction housed in a standard small 1008 (2.5mm x 2.0mm) case style, specifically identified as NL1008C-6. It employs a 3-SMD, no lead package configuration. Key electrical characteristics include a typical passband insertion loss of 2.0 dB. The device offers shielded construction to prevent filter de-tuning, ensuring stable performance in high-frequency signal conditioning environments.

Feature Summary

• LTCC high-pass filter design optimized for frequencies between 36.5 GHz and 50 GHz
• Shielded construction prevents filter de-tuning during operation
• Standard small 1008 surface-mount case style for compact integration

Applications

• Microwave signal conditioning systems
• High-frequency RF front-end filtering
• Communication equipment operating above 36 GHz

Procurement Notes

Verify the specific ordering suffix and packaging details directly with Mini-Circuits or authorized distributors before purchase. Confirm that the 3-SMD no-lead package matches your PCB footprint requirements. Ensure compatibility with 50 Ohm system impedance. Check for RoHS compliance status if required by your manufacturing standards. Validate the exact frequency range specifications against your application needs to ensure proper signal attenuation below the cutoff.

Selection Notes

Select this component when a high-pass response is required for signals starting at 36.5 GHz. The 1008 case size is suitable for space-constrained designs requiring SMD mounting. Consider the 2.0 dB typical insertion loss when calculating total link budget. The shielded design helps maintain signal integrity in dense circuit layouts. Ensure the 50 Ohm impedance matches the rest of the transmission line to minimize reflections.

Part Context

This part belongs to Mini-Circuits' portfolio of RF and microwave components, which spans from DC to 86 GHz. The HFCQ series represents ceramic filters utilizing LTCC technology. These components are engineered for precision signal conditioning in demanding RF environments. Mini-Circuits is recognized for designing and manufacturing these passive components globally.

Replacement Considerations

Consult Mini-Circuits official documentation for direct cross-reference substitutes. Verify that any alternative maintains the 36.5–50 GHz high-pass characteristic and 50 Ohm impedance. Ensure the replacement fits the NL1008C-6 footprint and meets similar insertion loss specifications.