TT Electronics/IRC

GUS-QS0B-03-4990-C

GUS-QS0B-03-4990-C Description

The GUS-QS0B-03-4990-C 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 with a 499Ω resistance value, offering a tight 0.25% tolerance and a low ±25ppm/°C temperature coefficient. Rated for 1W total power dissipation (0.05W per resistor), it operates reliably across a wide temperature range of -70°C to +125°C, with a maximum voltage rating of 100V. Its gull-wing termination and 0.64mm terminal pitch ensure compatibility with automated PCB assembly processes. The non-automotive, non-PPAP compliant device is supplied in a tube packaging, making it ideal for prototyping and medium-scale production.

GUS-QS0B-03-4990-C Features

• Precision Performance: Thin-film technology ensures low noise, high stability, and excellent TCR characteristics (±25ppm/°C).
• Compact & Durable: QSOP package (8.66mm × 6.02mm × 1.47mm) with a 1.63mm seated height maximizes board space efficiency.
• High Power Handling: 1W total power rating (distributed across 19 resistors) suits power-sensitive designs.
• Robust Construction: Rectangular, surface-mount design with gull-wing leads for reliable solder joints.
• Wide Operating Range: Functions from -70°C to +125°C, derated for high-temperature environments.

GUS-QS0B-03-4990-C Applications

• Precision Analog Circuits: Ideal for voltage dividers, feedback networks, and sensor conditioning in test equipment.
• Signal Processing: Used in ADC/DAC reference networks, filter networks, and impedance matching.
• Industrial Electronics: Suitable for PLC modules, power supplies, and control systems requiring stable resistance.
• Medical Devices: Ensures accuracy in patient monitoring and diagnostic equipment due to low drift.
• Communications: Deployed in RF front-ends and baseband processing where consistency is critical.

Conclusion of GUS-QS0B-03-4990-C

The GUS-QS0B-03-4990-C stands out for its precision, compact form factor, and thermal resilience, making it a superior choice for high-reliability applications. Its thin-film construction and tight tolerance reduce calibration needs, while the QSOP package simplifies integration. Though not RoHS-compliant, it remains a go-to solution for industrial, medical, and communication systems where performance outweighs regulatory constraints. Engineers will appreciate its balance of power handling, stability, and space savings in critical designs.