TT Electronics/IRC

GUS-QS8B-03-5490-GG

GUS-QS8B-03-5490-GG Description

The GUS-QS8B-03-5490-GG from TT Electronics/IRC is a high-precision thin-film resistor network designed for demanding surface-mount applications. This 16-pin QSOP package integrates 15 resistors, each with a 549 Ω resistance value and a tight 2% tolerance, ensuring consistent performance in precision circuits. With a ±25 ppm/°C temperature coefficient, it delivers exceptional stability across a wide operating temperature range of 70°C to 125°C. The network supports a maximum voltage rating of 100V and offers a total power rating of 0.75W (3/4W), distributed as 0.05W (1/20W) per resistor. Its gull-wing termination and compact dimensions (4.9mm x 6.02mm x 1.47mm) make it ideal for space-constrained PCB designs.

GUS-QS8B-03-5490-GG Features

• Thin-Film Technology: Delivers high accuracy, low noise, and excellent thermal stability.
• Robust Construction: QSOP package with ±0.1mm height tolerance and ±0.2mm depth tolerance ensures reliable mounting.
• Wide Temperature Range: Operates reliably from 70°C to 125°C with derated power.
• High Power Density: 0.75W total power (0.05W per resistor) suits power-sensitive applications.
• Low TCR: ±25 ppm/°C minimizes resistance drift under thermal stress.
• Automotive & Industrial Compliance: Though not PPAP or automotive-rated, its performance aligns with industrial-grade requirements.

GUS-QS8B-03-5490-GG Applications

• Precision Analog Circuits: Voltage dividers, feedback networks, and sensor interfaces.
• Signal Conditioning: ADC/DAC reference networks, gain-setting circuits.
• Communication Systems: Impedance matching in RF and high-speed digital PCBs.
• Test & Measurement Equipment: Calibration circuits requiring stable resistance values.
• Medical Electronics: Low-noise, high-reliability systems where thermal drift is critical.

Conclusion of GUS-QS8B-03-5490-GG

The GUS-QS8B-03-5490-GG excels in applications demanding precision, thermal stability, and compactness. Its thin-film construction, tight tolerances, and robust QSOP package make it a superior choice over thicker-film or less stable alternatives. While not RoHS-compliant, its performance in industrial and instrumentation settings justifies its use where reliability is paramount. Engineers will appreciate its balance of power handling, accuracy, and space efficiency in high-performance designs.