TT Electronics/IRC

GUS-QS0B-02-4991-CA

GUS-QS0B-02-4991-CA Description

The GUS-QS0B-02-4991-CA from TT Electronics/IRC is a high-precision thin-film resistor network designed for demanding surface-mount applications. This 19-resistor array features a 4.99KΩ resistance value with an ultra-tight ±0.25% tolerance and a low ±50ppm/°C temperature coefficient, ensuring stability across a wide operating range of -70°C to +125°C. Packaged in a 20-pin QSOP with gull-wing terminations, it offers a compact footprint (8.66mm × 6.02mm × 1.47mm) and robust 1W total power dissipation (0.05W per resistor). Its 100V maximum voltage rating and thin-film technology make it ideal for precision analog and digital circuits.

GUS-QS0B-02-4991-CA Features

• High Precision: ±0.25% tolerance and ±50ppm/°C TCR for stable performance in critical applications.
• Robust Construction: Thin-film technology ensures low noise and high reliability.
• Compact Design: QSOP package (8.66mm × 6.02mm) with 0.64mm pitch for high-density PCB layouts.
• Wide Temperature Range: Operates from -70°C to +125°C with derated power up to 125°C.
• Automated Assembly Friendly: Gull-wing terminations and surface-mount design streamline manufacturing.
• Non-Automotive/Non-PPAP: Suitable for industrial, medical, and instrumentation use.

GUS-QS0B-02-4991-CA Applications

• Precision Voltage Dividers: Ideal for ADC/DAC reference circuits due to low TCR and tight tolerance.
• Medical Equipment: Stable performance in patient monitoring and diagnostic devices.
• Test & Measurement: High accuracy in multimeters, oscilloscopes, and calibration tools.
• Industrial Controls: Reliable operation in PLCs, sensor interfaces, and power management.
• Aerospace & Defense: Suitable for avionics where temperature stability is critical.

Conclusion of GUS-QS0B-02-4991-CA

The GUS-QS0B-02-4991-CA excels in applications requiring precision, stability, and compactness. Its thin-film technology, tight tolerance, and robust thermal performance make it a superior choice over thicker-film or less stable alternatives. While not automotive-grade, it is well-suited for industrial, medical, and high-reliability electronics where consistent performance under varying conditions is paramount. The tube packaging ensures protection during handling and assembly, further enhancing its appeal for automated production environments.