TT Electronics/IRC

GUS-QS8A-03-4990-DB

GUS-QS8A-03-4990-DB Description

The GUS-QS8A-03-4990-DB from TT Electronics/IRC is a high-precision thin-film resistor network designed for demanding surface-mount applications. This 8-resistor isolated network features a 499Ω resistance value per resistor with an ultra-tight 0.5% tolerance and a low ±25ppm/°C temperature coefficient, ensuring stability across a wide operating temperature range of 70°C to 125°C. Housed in a compact 16-pin QSOP package with gull-wing terminations, it offers a 0.75W (3/4W) total power rating (0.1W per resistor) and a 100V maximum voltage rating, making it suitable for high-reliability circuits. Its thin-film technology provides superior accuracy and low noise compared to thick-film alternatives.

GUS-QS8A-03-4990-DB Features

• Precision Performance: 0.5% tolerance and ±25ppm/°C TCR for stable operation in precision analog/digital circuits.
• Robust Construction: Thin-film technology ensures low noise, high accuracy, and long-term reliability.
• Compact & Efficient: QSOP-16 package (4.9mm x 6.02mm x 1.47mm) with 0.64mm pitch for high-density PCB layouts.
• High Power Handling: 0.75W total power dissipation (0.1W per resistor) at 125°C maximum temperature.
• Isolated Design: ISOL circuit designator allows independent resistor operation, ideal for signal conditioning.
• Industrial-Grade: Non-automotive (PPAP: No) but suited for industrial, medical, and telecom applications.

GUS-QS8A-03-4990-DB Applications

• Signal Conditioning: Precision voltage dividers, feedback networks in op-amp circuits.
• Medical Electronics: Patient monitoring equipment, diagnostic devices requiring stable resistance.
• Test & Measurement: Calibration tools, sensor interfaces, and data acquisition systems.
• Telecom Infrastructure: RF matching networks, filter circuits, and base station controls.
• Industrial Automation: PLCs, motor drives, and process control systems where temperature stability is critical.

Conclusion of GUS-QS8A-03-4990-DB

The GUS-QS8A-03-4990-DB excels in applications demanding high precision, thermal stability, and compact form factors. Its thin-film isolation network, combined with low TCR and tight tolerance, makes it a superior choice over thicker-film or less stable alternatives. While not RoHS-compliant, its performance in industrial, medical, and telecom systems underscores its reliability. Engineers seeking a space-saving, high-accuracy resistor network for critical circuits will find this model an optimal solution.