CTS Corporation

RT1404B7

RT1404B7 Description

The RT1404B7 from CTS Corporation is a high-performance 18-resistor network designed for DDR SDRAM termination applications. This surface-mount (SMD) BGA component features a compact 0.354" x 0.157" (9.00mm x 4.00mm) footprint with a low-profile 1.34mm height, making it ideal for space-constrained PCB designs. As part of the ClearONE™ series, it offers ±1% tolerance and a ±200ppm/°C temperature coefficient, ensuring stable performance across varying operating conditions. With a dual terminator circuit and 25Ω resistance per element, it provides precise impedance matching for high-speed memory interfaces.

RT1404B7 Features

• High-density integration: 18 resistors in a 36-pin BGA package, reducing board space and assembly complexity.
• Optimized for DDR SDRAM: Dual-termination topology minimizes signal reflections and improves signal integrity.
• Robust power handling: 50mW per resistor ensures reliability in demanding applications.
• Moisture-resistant: MSL 1 (Unlimited) rating allows extended shelf life and flexible handling.
• Obsolete ECCN status: Suitable for legacy designs but requires consideration for new projects.

RT1404B7 Applications

This resistor network excels in high-speed memory systems, particularly:

• DDR2/DDR3/DDR4 SDRAM modules for precise termination.
• Server and workstation motherboards requiring stable impedance control.
• Embedded computing designs where space efficiency and signal integrity are critical.
• Legacy electronics maintenance due to its obsolete status but proven performance.

Conclusion of RT1404B7

The RT1404B7 combines high precision, compact form factor, and DDR-specific optimization, making it a reliable choice for memory termination. While obsolete, its low-profile BGA package and robust electrical characteristics remain advantageous for legacy upgrades or niche applications. Engineers should evaluate alternatives for new designs but can leverage this component for proven performance in existing systems.