TT Electronics/IRC

GUS-QS0B-03-6490-BA

GUS-QS0B-03-6490-BA Description

The GUS-QS0B-03-6490-BA is a high-precision thin-film resistor network from TT Electronics/IRC, designed for demanding surface-mount applications. This 19-resistor array features a 649Ω resistance value per resistor with an ultra-tight 0.1% 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 20-pin QSOP package with gull-wing terminations, it offers a compact footprint (8.66mm × 6.02mm × 1.47mm) and a 1W total power rating (0.05W per resistor). The 100V maximum voltage rating and thin-film technology make it ideal for precision analog and digital circuits.

GUS-QS0B-03-6490-BA Features

• High Precision: 0.1% tolerance and ±25ppm/°C TCR for critical signal conditioning.
• Robust Construction: Thin-film technology ensures long-term reliability and low noise.
• Space-Saving Design: QSOP package (6.02mm depth) optimizes PCB real estate.
• Wide Temperature Range: Operates from 70°C to 125°C with derated power.
• Automated Assembly Friendly: Gull-wing terminations and 0.64mm pitch enable high-speed SMT processes.
• Non-Automotive/Non-PPAP: Suitable for industrial, medical, and test equipment (non-vehicle applications).

GUS-QS0B-03-6490-BA Applications

• Precision Voltage Dividers: In ADCs, DACs, and sensor interfaces requiring matched resistors.
• Medical Instrumentation: For low-drift signal amplification and filtering.
• Test & Measurement Equipment: Calibration circuits and reference networks.
• Industrial Control Systems: Feedback networks in servo drives and power management.
• Communications Hardware: RF matching networks and impedance control.

Conclusion of GUS-QS0B-03-6490-BA

The GUS-QS0B-03-6490-BA excels in applications demanding high accuracy, thermal stability, and compactness. Its thin-film construction, tight tolerances, and QSOP packaging provide a competitive edge over thicker-film or less stable alternatives. While not RoHS-compliant, it remains a top choice for non-automotive precision electronics where performance outweighs regulatory constraints. Ideal for engineers prioritizing repeatability and miniaturization in harsh environments.