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RT1402B7TR7

RT1402B7TR7 Description

The RT1402B7TR7 from CTS Resistor Products (a division of CTS Corporation) is a high-performance 18-resistor network array designed for precision termination applications. Packaged in a compact 27-pin LBGA (9.00mm x 3.00mm) with a low-profile 1.34mm height, this surface-mount device features a 50Ω resistance per element with a tight ±1% tolerance and a ±200ppm/°C temperature coefficient. Part of the ClearONE™ series, it operates as a dual terminator, delivering 50mW power per element, making it ideal for high-speed digital circuits. The device is REACH compliant and rated MSL 1 (Unlimited) for moisture sensitivity, ensuring reliability in harsh environments.

RT1402B7TR7 Features

• 18-resistor array in a space-saving 27-pin LBGA package.
• 50Ω resistance with ±1% tolerance for precise signal integrity.
• Low TCR (±200ppm/°C) ensures stable performance across temperature variations.
• Dual terminator circuit optimized for DDR SDRAM applications.
• 50mW power rating per resistor balances thermal management and power handling.
• RoHS-compliant and REACH unaffected, meeting environmental standards.
• Tape & Reel (TR) packaging for automated assembly efficiency.

RT1402B7TR7 Applications

This resistor network excels in high-speed memory interfaces, particularly for DDR SDRAM termination, where impedance matching and signal integrity are critical. Its compact form factor and dual-termination design make it suitable for:

• Server/workstation memory modules
• Networking equipment requiring precise line termination
• Embedded systems with dense PCB layouts
• Automotive infotainment and ADAS (Advanced Driver Assistance Systems)

Conclusion of RT1402B7TR7

The RT1402B7TR7 combines high precision, thermal stability, and miniaturized packaging to address demanding termination needs in modern electronics. While marked obsolete, its legacy design remains relevant for legacy systems or replacements. Engineers value its low-profile footprint, tight tolerance, and DDR-optimized performance, making it a robust choice for signal integrity-critical applications. For new designs, consult CTS for alternative solutions within the ClearONE™ series.