TT Electronics/IRC

GUS-QS0B-03-4021-CB

GUS-QS0B-03-4021-CB Description

The GUS-QS0B-03-4021-CB from TT Electronics/IRC is a high-precision thin-film resistor network designed for demanding surface-mount applications. This 20-pin QSOP package integrates 19 resistors, each with a 4.02KΩ resistance value and an ultra-tight ±0.25% tolerance, ensuring exceptional accuracy in signal conditioning and voltage division circuits. With a ±25ppm/°C temperature coefficient, it delivers stable performance across a 70°C to 125°C derated power range, making it suitable for environments with fluctuating thermal conditions. The 1W total power rating (0.05W per resistor) and 100V maximum voltage rating further enhance its reliability in precision analog and digital systems.

GUS-QS0B-03-4021-CB Features

• High Precision: 0.25% tolerance and ±25ppm/°C TCR for minimal drift in critical applications.
• Robust Construction: Thin-film technology ensures low noise and high stability.
• Compact Design: 8.66mm × 6.02mm × 1.47mm QSOP package with 0.64mm pitch gull-wing leads for space-constrained PCBs.
• Wide Operating Range: -55°C to +125°C (full power up to 70°C) for industrial and automotive-grade reliability (note: non-automotive PPAP).
• Optimized Power Handling: 1W total dissipation (1/20W per resistor) balances performance and thermal management.
• Non-RoHS (lead-containing) for specific legacy or high-reliability requirements.

GUS-QS0B-03-4021-CB Applications

This resistor network excels in:

• Precision Analog Circuits: Voltage dividers, feedback networks, and sensor interfaces where tolerance and TCR are critical.
• Medical Devices: Patient monitoring equipment requiring stable, low-drift resistance values.
• Test & Measurement: Calibration tools and instrumentation demanding repeatable accuracy.
• Industrial Controls: PLCs and motor drives where temperature fluctuations are common.
• Legacy Systems: Upgrades or repairs for non-RoHS-compliant designs.

Conclusion of GUS-QS0B-03-4021-CB

The GUS-QS0B-03-4021-CB stands out for its combination of precision, power efficiency, and compactness, tailored for engineers prioritizing accuracy in harsh environments. Its thin-film construction and tight tolerances make it superior to thicker-film or carbon-based alternatives, while the QSOP package ensures compatibility with high-density layouts. Ideal for mission-critical analog systems, this network is a robust choice despite its non-automotive and non-RoHS status, offering reliability where regulatory flexibility exists.