TT Electronics/IRC

GUS-QS8A-03-61R9-FD

GUS-QS8A-03-61R9-FD Description

The GUS-QS8A-03-61R9-FD from TT Electronics/IRC is a high-precision thin-film resistor network designed for demanding surface-mount applications. This 8-resistor isolated network features a 61.9Ω resistance value with a tight 1% tolerance and a low ±25ppm/°C temperature coefficient, ensuring stable performance across a wide temperature range of 70°C to 125°C. Housed in a compact 16-pin QSOP package, it offers a 0.75W (3/4W) total power rating (0.1W per resistor) and supports a maximum voltage rating of 100V. Its gull-wing termination and 0.64mm terminal pitch facilitate reliable PCB mounting in space-constrained designs.

GUS-QS8A-03-61R9-FD Features

• High Precision: Thin-film technology delivers 1% tolerance and ±25ppm/°C TCR for critical analog/digital circuits.
• Robust Power Handling: 0.75W total power dissipation (0.1W per resistor) with derating up to 125°C.
• Compact Form Factor: 4.9mm (L) × 6.02mm (D) × 1.47mm (H) QSOP package ideal for high-density layouts.
• Isolated Design: Independent resistors (ISOL circuit designator) reduce crosstalk in multi-channel systems.
• Automated Assembly Friendly: Gull-wing leads and 0.64mm pitch ensure compatibility with pick-and-place processes.
• Wide Voltage Range: Supports up to 100V, suitable for industrial and instrumentation applications.

GUS-QS8A-03-61R9-FD Applications

This resistor network excels in:

• Precision Voltage Dividers: Used in ADC/DAC reference circuits due to low TCR and tight tolerance.
• Medical Electronics: Stable performance in isolated measurement systems (e.g., patient monitoring).
• Industrial Controls: Signal conditioning in PLCs and sensor interfaces requiring high voltage isolation.
• Telecom Infrastructure: Impedance matching and termination in high-frequency RF modules.
• Test & Measurement Equipment: Calibration networks where drift and accuracy are critical.

Conclusion of GUS-QS8A-03-61R9-FD

The GUS-QS8A-03-61R9-FD combines thin-film precision, compact packaging, and high power handling—making it a superior choice for applications demanding reliability in harsh environments. Its isolated resistor design and low TCR outperform bulkier or less stable alternatives (e.g., thick-film networks). While not automotive-grade or RoHS-compliant, it remains a cost-effective solution for industrial, medical, and telecom systems where accuracy and thermal stability are paramount.