CTS Corporation

RT1211B7

RT1211B7 Description

The RT1211B7 from CTS Corporation is a high-precision surface-mount resistor network designed for demanding applications in VME64 and VME64x systems. Part of the ClearONE™ series, this 16-resistor array features a compact 8.00mm x 3.00mm (0.315" x 0.118") footprint with a low-profile 1.34mm (0.053") height, making it ideal for space-constrained PCB designs. The device operates as a dual terminator with resistances of 220Ω and 1.8kΩ, offering ±1% tolerance and a ±200ppm/°C temperature coefficient for stable performance across varying conditions. With a 50mW power rating per element and 24-pin BGA packaging, it ensures reliable signal integrity in high-speed digital circuits.

RT1211B7 Features

• Precision Resistance: Tight ±1% tolerance and ±200ppm/°C TCR ensure consistent performance.
• Compact Design: Ultra-thin 1.34mm profile and small footprint optimize board space.
• Dual Termination: Supports 220Ω and 1.8kΩ resistances for versatile impedance matching.
• Robust Construction: Moisture Sensitivity Level 1 (MSL1) guarantees reliability in humid environments.
• High-Density Integration: 16 resistors in a 24-pin BGA package reduce component count.
• VME Compatibility: Optimized for VME64/VME64x backplanes and high-speed data buses.

RT1211B7 Applications

• VME64/VME64x Systems: Termination for data/address lines in industrial computing.
• Embedded Electronics: Signal conditioning in telecom and networking equipment.
• High-Speed Digital Circuits: Impedance matching in FPGA/ASIC interfaces.
• Automotive & Aerospace: Reliable performance in harsh environments.

Conclusion of RT1211B7

The RT1211B7 excels in high-speed digital systems requiring precision termination, combining miniaturization, accuracy, and durability. Its VME64x compatibility and BGA packaging make it a superior choice over bulkier through-hole alternatives. While marked obsolete, it remains a proven solution for legacy or long-lifecycle designs. Engineers seeking low-profile, high-density resistor networks will find this model ideal for space-constrained, high-reliability applications.