TT Electronics/IRC

GUS-QS8A-03-78R7-FD

GUS-QS8A-03-78R7-FD Description

The GUS-QS8A-03-78R7-FD from TT Electronics/IRC is a high-precision 8-resistor isolated network designed for demanding surface-mount applications. Featuring a 78.7Ω resistance value with a tight 1% tolerance and a low ±25ppm/°C temperature coefficient, this thin-film resistor network ensures stable performance across a wide temperature range (70°C to 125°C). Encased in a compact 16-pin QSOP package with gull-wing terminations, it offers a 0.75W (3/4W) total power rating and 0.1W per resistor, making it suitable for high-density PCB designs. Its 100V maximum voltage rating and isolated (ISOL) circuit design enhance reliability in precision analog and digital circuits.

GUS-QS8A-03-78R7-FD Features

• Thin-film technology: Delivers superior accuracy and stability (±25ppm/°C) compared to thick-film alternatives.
• Compact footprint: Measures just 4.9mm (L) × 6.02mm (D) × 1.47mm (H), ideal for space-constrained designs.
• High power handling: 0.75W total dissipation with 0.1W per resistor, outperforming similar networks in its class.
• Robust construction: QSOP package with gull-wing leads ensures reliable surface-mount attachment and thermal performance.
• Isolated design (ISOL): Each resistor is electrically independent, reducing crosstalk in multi-channel applications.
• Wide operating range: Rated for -55°C to +125°C, ensuring functionality in harsh environments.

GUS-QS8A-03-78R7-FD Applications

This resistor network is ideal for:

• Precision voltage dividers in instrumentation and sensor interfaces.
• Signal conditioning circuits in industrial automation and medical devices.
• Impedance matching networks for high-frequency communication systems.
• Analog-to-digital converter (ADC) reference networks where low drift is critical.
• Power supply feedback loops requiring stable, matched resistances.

Conclusion of GUS-QS8A-03-78R7-FD

The GUS-QS8A-03-78R7-FD combines high accuracy, compact size, and robust power handling, making it a standout choice for engineers designing precision electronics. Its thin-film isolation, low TCR, and gull-wing termination cater to applications demanding reliability in challenging conditions. While not RoHS-compliant, its performance in industrial, automotive (non-PPAP), and telecom systems justifies its use where precision outweighs compliance requirements. For designs needing tight-tolerance, space-efficient resistor networks, this model offers a compelling balance of performance and durability.