TT Electronics/IRC

GUS-QS8A-03-5490-DB

GUS-QS8A-03-5490-DB Description

The GUS-QS8A-03-5490-DB is a high-precision 8-resistor isolated network from TT Electronics/IRC, designed for demanding surface-mount applications. Featuring a 549 Ω resistance per element with an ultra-tight 0.5% tolerance and a low ±25 ppm/°C temperature coefficient, this thin-film resistor network ensures exceptional stability and accuracy across a wide temperature range (70°C to 125°C). Housed in a compact 16-pin QSOP package with gull-wing terminals, it offers a 0.75W (3/4W) total power rating and 100V maximum voltage rating, making it suitable for high-density PCB designs. The isolated (ISOL) circuit design eliminates crosstalk between resistors, enhancing signal integrity in precision circuits.

GUS-QS8A-03-5490-DB Features

• Precision Thin Film Technology: Delivers low noise and high stability for critical analog/digital applications.
• Compact QSOP Package: Measures just 4.9mm (L) × 6.02mm (D) × 1.47mm (H), ideal for space-constrained designs.
• High Power Handling: 0.1W per resistor (0.75W total) with derated performance up to 125°C.
• Isolated Resistors: Independent circuits minimize interference in multi-channel systems.
• Robust Construction: Gull-wing termination ensures reliable solder joints in automated SMT processes.
• Non-Automotive/Non-PPAP: Optimized for industrial, telecom, and instrumentation use.

GUS-QS8A-03-5490-DB Applications

• Precision Voltage Dividers: Used in ADC/DAC reference circuits and sensor signal conditioning.
• Medical Electronics: High-reliability patient monitoring equipment and diagnostic devices.
• Test & Measurement: Calibration tools and precision instrumentation requiring low TCR.
• Telecom Infrastructure: RF matching networks and base station control systems.
• Industrial Automation: Isolated feedback loops in motor drives and power supplies.

Conclusion of GUS-QS8A-03-5490-DB

The GUS-QS8A-03-5490-DB stands out for its combination of precision, power efficiency, and isolation, making it a superior choice over standard resistor arrays in noise-sensitive environments. Its thin-film technology and QSOP packaging cater to modern miniaturization trends, while the 0.5% tolerance and ±25 ppm/°C TCR ensure long-term reliability. Though not RoHS-compliant, it remains a top-tier solution for industrial and telecom applications where performance outweighs regulatory constraints. Engineers will appreciate its balance of size, accuracy, and thermal resilience in high-performance circuits.