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RT2405B7

RT2405B7 Description

The RT2405B7 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 9.00mm x 4.00mm (0.354" x 0.157"), this surface-mount device offers a 22Ω resistance per element with a tight ±1% tolerance and a ±200ppm/°C temperature coefficient. Part of the ClearONE™ series, it features a dual-terminator circuit configuration, ensuring robust signal integrity in high-speed memory systems. With a 50mW power rating per element and RoHS compliance, it meets stringent environmental and performance standards.

RT2405B7 Features

• Precision Resistance: 22Ω ±1% tolerance for accurate termination.
• High-Density Design: 18 resistors in a space-saving 36-pin LBGA.
• Thermal Stability: ±200ppm/°C temperature coefficient ensures reliability across operating conditions.
• DDR-Optimized: Dual-terminator topology minimizes signal reflection in DDR SDRAM applications.
• Robust Construction: Moisture Sensitivity Level (MSL) 1 (Unlimited) for ease of handling and assembly.
• Compliance: RoHS-compliant and ECCN EAR99 for global market suitability.

RT2405B7 Applications

Ideal for high-speed memory systems, the RT2405B7 excels in:

• DDR2/DDR3/DDR4 SDRAM termination to reduce signal distortion and improve data integrity.
• Server and workstation memory modules requiring precise impedance matching.
• Embedded systems where compact, high-performance resistor networks are critical.
• Automotive and industrial electronics demanding stable performance under thermal stress.

Conclusion of RT2405B7

The RT2405B7 stands out as a high-reliability, precision resistor network tailored for DDR memory applications. Its compact LBGA package, tight tolerance, and dual-terminator design make it superior to generic resistor arrays, particularly in high-speed, noise-sensitive environments. While marked obsolete, its proven performance in legacy systems ensures continued relevance in specialized designs. Engineers seeking optimized signal integrity in memory interfaces will find this component indispensable.