TT Electronics/IRC

GUS-QS0B-03-6490-FB

GUS-QS0B-03-6490-FB Description

The GUS-QS0B-03-6490-FB from TT Electronics/IRC is a high-precision thin-film resistor network designed for demanding surface-mount applications. This 19-resistor array features a 649Ω resistance value per resistor with a tight 1% tolerance and a low ±25ppm/°C temperature coefficient, ensuring stable performance across a wide operating temperature range of -55°C to +125°C. Packaged in a compact 20-pin QSOP with gull-wing terminals, it offers a 0.64mm pitch for high-density PCB layouts. With a 1W total power rating (0.05W per resistor) and 100V maximum voltage rating, this network is engineered for reliability in precision analog and digital circuits.

GUS-QS0B-03-6490-FB Features

• Thin-Film Technology: Delivers superior accuracy, low noise, and excellent thermal stability.
• High-Density Packaging: QSOP-20 case (8.66mm × 6.02mm × 1.47mm) optimizes board space.
• Robust Performance: 1% tolerance and ±25ppm/°C TCR ensure minimal drift under thermal stress.
• Wide Temperature Range: Operates from -55°C to +125°C (derated power up to 125°C).
• Automotive-Grade Alternatives Available: While this variant is non-automotive (PPAP: No), similar models meet stricter requirements.
• Non-RoHS Compliant: Suitable for legacy or exempted applications.

GUS-QS0B-03-6490-FB Applications

• Precision Voltage Dividers: Ideal for ADC/DAC reference circuits due to low TCR and matched resistors.
• Medical Instrumentation: Stable performance in sensitive measurement systems.
• Industrial Controls: Reliable operation in PLCs and sensor interfaces.
• Telecommunications: Signal conditioning in high-frequency RF modules.
• Legacy Electronics Maintenance: Non-RoHS compliance suits repairs of older equipment.

Conclusion of GUS-QS0B-03-6490-FB

The GUS-QS0B-03-6490-FB excels in applications requiring high precision, compactness, and thermal resilience. Its thin-film construction and QSOP packaging make it a standout choice for engineers designing space-constrained, high-reliability systems. While not automotive-certified, its tight tolerances and low TCR outperform generic thick-film networks, particularly in medical, industrial, and telecom sectors. For legacy designs or non-RoHS projects, this resistor network delivers unmatched consistency and longevity.