TT Electronics/IRC

GUS-QS8A-02-49R9-JF

GUS-QS8A-02-49R9-JF Description

The GUS-QS8A-02-49R9-JF from TT Electronics/IRC is a high-performance 8-resistor thin-film network designed for precision applications. Housed in a 16-pin QSOP package with gull-wing SMD termination, it offers a 49.9Ω resistance per resistor with a 5% tolerance and a ±50ppm/°C temperature coefficient. The device operates over a wide temperature range of -70°C to +125°C, with a derated power range of 70°C to 125°C, ensuring reliability in demanding environments. Its 0.75W (3/4W) total power rating and 0.1W (1/10W) per resistor make it suitable for distributed power dissipation. The isolated (ISOL) circuit design allows independent resistor operation, enhancing flexibility in circuit design.

GUS-QS8A-02-49R9-JF Features

• Thin-Film Technology: Delivers superior stability, low noise, and tight TCR performance (±50ppm/°C).
• High Power Handling: 0.75W total power (0.1W per resistor) supports robust operation in compact layouts.
• Wide Voltage Rating: 100V maximum voltage ensures compatibility with high-voltage applications.
• Precision Tolerance: 5% resistance tolerance balances cost and performance for industrial use.
• Compact & Robust: 4.9mm (L) x 6.02mm (D) x 1.47mm (H) QSOP package with 0.64mm pitch, ideal for high-density PCBs.
• Automotive-Grade Alternatives: While not PPAP or automotive-qualified, its 125°C max operating temperature suits harsh environments.

GUS-QS8A-02-49R9-JF Applications

• Signal Conditioning: Precision resistor networks for op-amp circuits, filters, and dividers.
• Industrial Controls: Reliable performance in PLCs, motor drives, and sensor interfaces.
• Test & Measurement Equipment: Low-noise, stable resistance for calibration and instrumentation.
• Power Management: Voltage division and current sensing in DC-DC converters.
• Medical Electronics: Isolated resistor networks for patient monitoring systems.

Conclusion of GUS-QS8A-02-49R9-JF

The GUS-QS8A-02-49R9-JF excels in precision, power efficiency, and compactness, making it a versatile choice for industrial, medical, and test equipment. Its thin-film construction, isolated design, and high-temperature resilience provide a competitive edge over thicker-film or lower-tolerance networks. While not RoHS-compliant, its performance in harsh environments and high-density layouts justifies its use in specialized applications. Engineers seeking a cost-effective, reliable resistor network will find this model ideal for balancing performance and space constraints.