LFCN-2400+ Low Pass LTCC Filter: Precision and Performance in a Compact Package

The LFCN-2400+ is a high-performance, low-pass filter designed by Mini-Circuits, a globally recognized leader in RF and microwave components. This product stands out for its compact size, robust performance, and suitability for surface-mount applications. Below, we delve into the key features and specifications of this filter to help you understand why it's an ideal choice for your RF design needs.

Overview of the LFCN-2400+

The LFCN-2400+ belongs to the LTCC (Low Temperature Co-fired Ceramic) family of filters, renowned for their excellent electrical characteristics and mechanical stability. It operates as a low-pass filter, allowing signals below 2.8 GHz to pass while attenuating higher frequencies. With its 50 Ohm impedance and 1.5 dB insertion loss, this filter ensures minimal signal distortion and optimal performance in various RF systems.

Key Specifications:

• Manufacturer Part Number: LFCN-2400+
• Manufacturer: Mini-Circuits
• Description: LTCC Low Pass Filter, DC - 2400 MHz
• Category: Filters > Ceramic Filters
• Product Status: Active

Frequency and Bandwidth

The LFCN-2400+ is designed to operate at a cutoff frequency of 2.8 GHz, making it suitable for applications requiring efficient attenuation of higher-frequency noise or interference. Its low-pass filter design ensures that only signals within the desired frequency range are allowed to pass through, maintaining signal integrity and reducing unwanted noise.

Electrical Characteristics

• Impedance: The filter is matched to 50 Ohms, ensuring compatibility with standard RF systems and minimizing reflections.
• Insertion Loss: At just 1.5 dB, the LFCN-2400+ offers low signal loss, preserving the strength and quality of transmitted signals.
• Filter Type: As a low-pass filter, it effectively blocks higher-frequency signals while allowing lower frequencies to pass through.

Mechanical and Mounting Features

• Mounting Type: The surface mount design makes it easy to integrate into modern PCB assemblies, saving space and enhancing reliability.
• Package/Case: The 4-SMD, No Lead package provides a robust and compact solution for high-density designs.
• Size/Dimension: Measuring 0.126" L x 0.063" W (3.20mm x 1.60mm), this filter is incredibly small yet powerful, ideal for space-constrained applications.
• Height (Max): With a maximum height of 0.037" (0.94mm), it fits seamlessly into thin-profile devices without compromising performance.

Applications

The LFCN-2400+ is well-suited for a variety of applications, including:

• Wireless communication systems (Wi-Fi, Bluetooth, LTE)
• RF front-end modules for IoT devices
• Signal conditioning circuits in test & measurement equipment
• Noise reduction in digital and analog circuits
• Military and aerospace communication systems

Why Choose the LFCN-2400+?

1. High Performance: With a low insertion loss of 1.5 dB and precise filtering capabilities, the LFCN-2400+ ensures clear and strong signal transmission.
2. Compact Design: Its small footprint and low profile make it perfect for modern, space-efficient designs.
3. Reliability: Manufactured using LTCC technology, this filter offers superior thermal stability and durability.
4. Ease of Integration: The surface-mount design simplifies assembly processes and enhances overall system reliability.
5. Industry-Leading Quality: As a Mini-Circuits product, it meets stringent quality standards for RF components.

Technical Performance Graphs

For engineers requiring detailed performance data, the LFCN-2400+ features:

• Frequency response curves showing sharp roll-off at 2.8 GHz
• Return loss measurements better than 15 dB across passband
• Temperature stability graphs demonstrating consistent performance from -40 C to +85 C

Comparison with Similar Filters

When compared to competing low-pass filters in its class, the LFCN-2400+ offers:

• 20% smaller footprint than comparable ceramic filters
• Lower insertion loss than many thin-film alternatives
• Better high-frequency rejection above 3 GHz

Design Considerations

For optimal performance with the LFCN-2400+, engineers should:

• Maintain proper impedance matching throughout the circuit
• Follow recommended PCB layout guidelines from Mini-Circuits
• Consider thermal management in high-power applications
• Account for filter response when designing adjacent components

Conclusion

The LFCN-2400+ from Mini-Circuits represents the pinnacle of LTCC filter technology, combining exceptional RF performance with compact dimensions ideal for today's space-constrained wireless designs. With its 2.8 GHz cutoff frequency, low insertion loss, and robust construction, this filter delivers reliable performance across commercial, industrial, and military applications.

For design engineers seeking a proven solution for signal conditioning and noise reduction, the LFCN-2400+ offers an unbeatable combination of size, performance, and reliability. Its surface-mount compatibility and Mini-Circuits' reputation for quality make it a smart choice for current and next-generation RF systems.

Ready to incorporate the LFCN-2400+ into your design? Visit Mini-Circuits for detailed specifications, application notes, and purchasing options. For volume pricing or custom requirements, contact their technical sales team for personalized support.