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RT2405B6

RT2405B6 Description

The RT2405B6 from CTS Corporation is a high-performance 18-resistor network designed for DDR SDRAM termination applications. Packaged in a compact 36-pin LBGA with dimensions of 0.450" x 0.200" (11.43mm x 5.08mm) and a low-profile height of 0.058" (1.47mm), this dual-terminator network offers a 22Ω resistance per element with a tight ±1% tolerance and a stable ±200ppm/°C temperature coefficient. Part of the ClearONE™ series, it delivers 50mW power handling per resistor, ensuring reliable operation in high-speed memory systems. The device is RoHS compliant, has an MSL 1 (Unlimited) moisture sensitivity rating, and is classified under ECCN EAR99 and HTSUS 8533.21.0020.

RT2405B6 Features

• Precision Termination: ±1% tolerance and ±200ppm/°C TCR ensure consistent signal integrity in DDR memory applications.
• Compact Design: Space-saving LBGA package (11.43mm x 5.08mm) with a low 1.47mm profile, ideal for dense PCB layouts.
• High Reliability: 50mW power rating per resistor and RoHS compliance for robust performance in demanding environments.
• Easy Integration: Surface-mount design simplifies assembly, while the dual-terminator circuit reduces component count.
• Obsolete Status: While no longer in production, it remains a dependable choice for legacy or long-lifecycle designs.

RT2405B6 Applications

• DDR SDRAM Termination: Optimized for DDR1, DDR2, and DDR3 memory modules, providing precise impedance matching.
• High-Speed Digital Circuits: Suitable for server motherboards, networking equipment, and embedded systems requiring stable termination.
• Space-Constrained Designs: Ideal for compact memory subsystems where board real estate is critical.
• Legacy System Maintenance: A reliable solution for servicing older electronics still reliant on this termination topology.

Conclusion of RT2405B6

The RT2405B6 resistor network excels in DDR memory termination with its precision, compact footprint, and robust construction. While marked obsolete, its high tolerance, low TCR, and efficient power handling make it a preferred choice for legacy or niche applications. Engineers seeking a proven solution for signal integrity in high-speed memory systems will find this device a dependable option, particularly where space efficiency and reliability are paramount.