TT Electronics/IRC

GUS-QS0B-03-4990-J

GUS-QS0B-03-4990-J Description

The GUS-QS0B-03-4990-J from TT Electronics/IRC is a high-performance thin-film resistor network designed for precision applications in demanding electronic circuits. This 20-pin QSOP (Quarter-Small Outline Package) device integrates 19 resistors, each with a 499Ω resistance value and a 5% tolerance, ensuring reliable signal conditioning and voltage division. With a ±25ppm/°C temperature coefficient, it delivers exceptional stability across a wide operating range of -70°C to +125°C, making it suitable for environments with thermal fluctuations. The 1W total power rating (0.05W per resistor) and 100V maximum voltage rating further enhance its robustness in compact designs.

GUS-QS0B-03-4990-J Features

• Thin-Film Technology: Offers superior accuracy, low noise, and stability compared to thick-film alternatives.
• High-Density Integration: 19 resistors in a compact 8.66mm × 6.02mm × 1.47mm QSOP package, ideal for space-constrained PCBs.
• Gull Wing Termination: Ensures reliable surface-mount (SMD) soldering with a 0.64mm terminal pitch for automated assembly.
• Wide Temperature Range: Operates reliably from -70°C to +125°C, with derated power up to 125°C.
• Low TCR (±25ppm/°C): Minimizes resistance drift under thermal stress, critical for precision analog circuits.
• Non-Automotive (PPAP No): Optimized for industrial, telecom, and instrumentation applications.

GUS-QS0B-03-4990-J Applications

This resistor network excels in:

• Signal Conditioning: Voltage dividers, pull-up/pull-down networks in ADC/DAC circuits.
• Industrial Controls: PLCs, sensor interfaces, and feedback loops requiring stable resistance.
• Telecom Equipment: Line termination, impedance matching in high-frequency PCBs.
• Test & Measurement: Calibration circuits and precision instrumentation.
• Power Management: Current limiting and bias networks in low-power DC/DC converters.

Conclusion of GUS-QS0B-03-4990-J

The GUS-QS0B-03-4990-J combines thin-film precision, compact packaging, and thermal resilience, making it a standout choice for engineers designing high-reliability systems. Its 5% tolerance and low TCR ensure consistent performance in harsh environments, while the QSOP gull-wing package simplifies manufacturing. Though non-compliant with EU RoHS, it remains a top-tier solution for industrial and telecom applications where durability and accuracy are paramount. For designs demanding stable, space-efficient resistor networks, this model delivers unmatched value.