TT Electronics/IRC

GUS-QS8A-03-6812-CB

GUS-QS8A-03-6812-CB Description

The GUS-QS8A-03-6812-CB from TT Electronics/IRC is a high-precision 8-resistor thin film network designed for demanding surface-mount applications. Encased in a 16-pin QSOP package with gull-wing terminations, this 68.1kΩ resistor array offers ±0.25% tolerance and an ultra-stable ±25ppm/°C temperature coefficient, ensuring reliable performance in precision circuits. With a 0.75W (3/4W) total power rating (0.1W per resistor), it operates across a wide temperature range of -70°C to +125°C, making it suitable for harsh environments. The compact 4.9mm × 6.02mm × 1.47mm footprint and 0.64mm terminal pitch enable high-density PCB layouts while maintaining isolation between resistors.

GUS-QS8A-03-6812-CB Features

• High Precision: 0.25% tolerance and ±25ppm/°C TCR for stable performance in critical analog circuits.
• Robust Construction: Thin film technology ensures low noise and long-term reliability.
• Space-Efficient: QSOP-16 package with 1.63mm seated height optimizes board space.
• Wide Operating Range: -70°C to +125°C derated power capability, ideal for industrial and automotive-grade designs (though not PPAP/Automotive certified).
• Isolated Resistors: Independent 68.1kΩ resistors (ISOL circuit designator) prevent crosstalk in signal conditioning.
• High Voltage Tolerance: 100V maximum rating per resistor, suitable for voltage-divider networks.

GUS-QS8A-03-6812-CB Applications

• Precision Instrumentation: Used in DAC/ADC reference circuits, medical devices, and test equipment where accuracy is critical.
• Signal Conditioning: Ideal for sensor interfaces (e.g., strain gauges, RTDs) due to low TCR drift.
• Industrial Controls: Deployed in PLC modules and power management systems requiring stable resistance under thermal stress.
• Communications: Supports impedance matching in RF and high-speed data lines.
• Aerospace & Defense: Suitable for avionics and military hardware where thin film reliability is preferred (note: non-RoHS version).

Conclusion of GUS-QS8A-03-6812-CB

The GUS-QS8A-03-6812-CB excels in applications demanding precision, compactness, and thermal stability. Its isolated thin film resistors, high power dissipation, and tight tolerances make it a superior choice over thicker film or lower-tolerance arrays. While not RoHS-compliant, its performance in industrial, medical, and high-reliability systems justifies its use in specialized designs. Engineers will appreciate its balance of miniaturization, accuracy, and ruggedness in mission-critical circuits.