TT Electronics/IRC

GUS-QS8A-03-4990-BB

GUS-QS8A-03-4990-BB Description

The GUS-QS8A-03-4990-BB is a high-precision thin-film resistor network from TT Electronics/IRC, designed for demanding applications requiring tight tolerances and stable performance. This 8-resistor isolated network features a 499Ω resistance value per resistor with an ultra-tight 0.1% tolerance and a low ±25ppm/°C temperature coefficient, ensuring minimal drift across operating conditions. Encased in a 16-pin QSOP package with gull-wing terminations, it offers a compact 4.9mm × 6.02mm footprint and a low profile (1.47mm height), making it ideal for space-constrained surface-mount (SMD) designs.

GUS-QS8A-03-4990-BB Features

• Precision Performance: Thin-film technology delivers 0.1% tolerance and ±25ppm/°C TCR for stable operation in precision circuits.
• Robust Power Handling: 0.75W (3/4W) total power rating (0.1W per resistor) with derating up to 125°C.
• Isolated Design (ISOL): Each resistor is electrically isolated, enabling flexible circuit configurations.
• High Voltage Rating: Supports up to 100V, suitable for industrial and instrumentation applications.
• Compact QSOP Package: 0.64mm terminal pitch and 1.63mm seated height ensure compatibility with high-density PCBs.
• Wide Temperature Range: Operates from 70°C to 125°C, making it reliable in harsh environments.

GUS-QS8A-03-4990-BB Applications

• Precision Analog Circuits: Ideal for DAC/ADC reference networks, voltage dividers, and sensor conditioning.
• Industrial Electronics: Suitable for PLC modules, test equipment, and control systems requiring stable resistance.
• Medical Devices: Used in patient monitoring systems where accuracy and reliability are critical.
• Automotive (Non-Automotive Rated): Applicable in non-safety-critical automotive electronics like infotainment.
• Telecommunications: Ensures signal integrity in RF matching networks and filtering circuits.

Conclusion of GUS-QS8A-03-4990-BB

The GUS-QS8A-03-4990-BB excels in applications demanding high precision, thermal stability, and compact form factors. Its isolated thin-film resistors, combined with robust power handling and a wide operating temperature range, make it a superior choice over generic resistor arrays. While not PPAP or automotive-rated, it is well-suited for industrial, medical, and telecom systems where performance consistency is paramount. Packaged in tubes for automated assembly, this network balances accuracy, durability, and manufacturability.