TT Electronics/IRC

GUS-QS0B-03-5490-B

GUS-QS0B-03-5490-B Description

The GUS-QS0B-03-5490-B is a high-precision thin-film resistor network from TT Electronics/IRC, designed for demanding electronic applications requiring tight tolerances and stable performance. This 20-pin QSOP (Quarter Small Outline Package) device integrates 19 resistors, each with a 549 Ω resistance value and an exceptional 0.1% tolerance, ensuring minimal deviation in critical circuits. With a ±25 ppm/°C temperature coefficient, it delivers outstanding stability across a wide operating temperature range of 70°C to 125°C. The 1W total power rating (0.05W per resistor) and 100V maximum voltage rating make it suitable for precision analog and digital systems. Packaged in a tube for secure handling, this surface-mount (SMD) network features gull-wing terminals for reliable PCB attachment.

GUS-QS0B-03-5490-B Features

• Precision Resistance: 549 Ω ±0.1% tolerance for high-accuracy signal conditioning.
• Stable Performance: ±25 ppm/°C TCR ensures minimal drift under thermal stress.
• Robust Construction: Thin-film technology provides superior reliability and low noise.
• Compact & Durable: QSOP package (8.66 x 6.02 x 1.47 mm) with tight dimensional tolerances (±0.1 mm height/length, ±0.2 mm depth).
• High Power Handling: 1W total dissipation (0.05W per resistor) at 125°C maximum temperature.
• Automated Assembly Friendly: Gull-wing termination and 0.64 mm pitch enable efficient SMT placement.
• Non-Automotive/Non-PPAP: Ideal for industrial and instrumentation use.

GUS-QS0B-03-5490-B Applications

This resistor network excels in applications demanding precision, stability, and compact integration:

• Analog Signal Processing: Voltage dividers, DAC/ADC reference circuits.
• Medical Electronics: Patient monitoring equipment requiring low drift.
• Test & Measurement: Calibration tools, precision instrumentation.
• Industrial Controls: Feedback networks in servo systems, PLCs.
• Communications: RF impedance matching, filter networks.
• Power Management: Current sensing, feedback loops in DC-DC converters.

Conclusion of GUS-QS0B-03-5490-B

The GUS-QS0B-03-5490-B stands out for its combination of precision, thermal stability, and power efficiency in a compact QSOP footprint. Its thin-film construction and tight tolerances make it a superior choice over thicker-film or less stable alternatives. While not PPAP-qualified, it is ideal for industrial, medical, and high-reliability electronics where consistent performance is critical. Engineers seeking a low-drift, high-density resistor network for space-constrained designs will find this model exceptionally well-suited.