TT Electronics/IRC

GQCA0228R7GT

GQCA0228R7GT Description

The GQCA0228R7GT from TT Electronics/IRC is a high-precision thin-film resistor network designed for demanding isolation and signal conditioning applications. This 24-pin QSOP surface-mount device integrates 12 isolated resistors, each with a 28.7Ω resistance and a tight 2% tolerance, ensuring consistent performance in precision circuits. Encased in a robust ceramic package, it offers superior thermal stability and durability, with a ±50ppm/°C temperature coefficient and a 125°C maximum operating temperature. The gull-wing termination facilitates reliable PCB mounting, while the 0.1W power rating per resistor (1W total) and 100V maximum voltage rating make it suitable for low-power, high-voltage environments.

GQCA0228R7GT Features

• High Isolation: Designed with isolated resistors (ISOL) for minimal crosstalk, critical in analog and mixed-signal circuits.
• Thin-Film Technology: Delivers low noise, high stability, and precision resistance values compared to thick-film alternatives.
• Ceramic Case: Enhances thermal dissipation and mechanical strength, ideal for harsh environments.
• Compact QSOP Package: 8.66mm × 6.02mm footprint with 0.64mm pitch, optimizing space in dense PCB layouts.
• Wide Temperature Range: Operates from 70°C to 125°C with derated power, ensuring reliability in elevated temperatures.
• Non-Automotive Grade: Suitable for industrial, telecom, and instrumentation applications where PPAP compliance is not required.

GQCA0228R7GT Applications

• Signal Conditioning: Precision voltage dividers and feedback networks in data acquisition systems.
• Isolation Circuits: Used in medical devices and test equipment where signal integrity is paramount.
• Telecom Infrastructure: Impedance matching and termination in high-frequency communication modules.
• Industrial Controls: Robust performance in PLC I/O modules and sensor interfaces.
• Power Management: Low-power voltage regulation and current sensing in DC-DC converters.

Conclusion of GQCA0228R7GT

The GQCA0228R7GT stands out for its precision, isolation, and compact design, making it a superior choice for engineers requiring reliable resistor networks in space-constrained, high-performance applications. Its ceramic construction, thin-film technology, and wide operational range address challenges in industrial and telecom systems, though its non-RoHS compliance may limit use in eco-sensitive designs. For isolation-critical circuits demanding stability and low tolerance, this model offers a compelling balance of performance and durability.