TT Electronics/IRC

GQ8A0390R9GCT

GQ8A0390R9GCT Description

The GQ8A0390R9GCT from TT Electronics/IRC is a high-performance 8-resistor isolated network designed for precision applications. This thin-film resistor array offers a 90.9Ω resistance per element with a tight 2% tolerance and a low ±25ppm/°C temperature coefficient, ensuring stable performance across a wide operating temperature range of -70°C to +125°C. Housed in a 16-pin QSOP ceramic package, it features gull-wing SMD terminations for reliable surface-mount assembly. With a 0.75W (3/4W) total power rating (0.1W per resistor) and a 100V maximum voltage rating, this component is engineered for demanding circuits requiring high isolation (ISOL) and low crosstalk.

GQ8A0390R9GCT Features

• Precision Thin Film Technology: Delivers low noise and high stability for sensitive analog/digital circuits.
• Isolated Network (ISOL): Each resistor is electrically independent, reducing interference in multi-channel systems.
• Robust Ceramic QSOP Package: Enhances thermal dissipation and mechanical durability in harsh environments.
• Wide Temperature Range: Operates reliably from -70°C to +125°C, with derated power up to 125°C.
• Compact & High-Density: 4.9mm × 6.02mm footprint and 1.47mm profile save PCB space in miniaturized designs.
• Automated Manufacturing Compatibility: Gull-wing leads and ±0.1mm dimensional tolerances ensure pick-and-place efficiency.

GQ8A0390R9GCT Applications

• Industrial Control Systems: Isolated signal conditioning, PLCs, and sensor interfaces.
• Medical Electronics: Patient monitoring equipment where precision and reliability are critical.
• Test & Measurement Instruments: High-accuracy dividers, calibration circuits, and multiplexers.
• Telecommunications: Line termination, impedance matching, and RF front-end modules.
• Automotive (Non-Automotive Rated): Infotainment and dashboard systems (note: not PPAP/automotive-qualified).

Conclusion of GQ8A0390R9GCT

The GQ8A0390R9GCT excels in applications demanding precision, isolation, and compactness. Its ceramic construction, thin-film technology, and isolated design make it superior to standard epoxy-coated networks, particularly in high-temperature or noise-sensitive environments. While not RoHS-compliant or automotive-grade, it remains a cost-effective solution for industrial, medical, and telecom systems requiring reliable resistor networks. Engineers will value its balance of performance, density, and thermal resilience in space-constrained, high-reliability designs.