TT Electronics/IRC

GUS-QS8A-03-4870-DB

GUS-QS8A-03-4870-DB Description

The GUS-QS8A-03-4870-DB is a high-precision thin-film resistor network from TT Electronics/IRC, designed for demanding surface-mount (SMD) applications. This 16-pin QSOP package features 8 isolated resistors, each with a 487Ω resistance value and an ultra-tight ±0.5% tolerance, ensuring exceptional accuracy in signal conditioning and voltage division circuits. With a ±25ppm/°C temperature coefficient, it delivers stable performance across a wide operating range of -70°C to +125°C, making it suitable for harsh environments. The 0.75W (3/4W) total power rating (0.1W per resistor) and 100V maximum voltage rating provide robust handling of moderate power loads. Its gull-wing termination and 0.64mm terminal pitch facilitate reliable PCB assembly, while the compact 4.9mm x 6.02mm footprint optimizes board space.

GUS-QS8A-03-4870-DB Features

• Precision Thin Film Technology: Ensures low noise, high stability, and repeatable performance.
• Isolated Resistor Configuration (ISOL): Each of the 8 resistors operates independently, ideal for multi-channel isolation.
• High Power Density: 0.75W total dissipation in a miniaturized QSOP package outperforms similar arrays in thermal management.
• Extended Temperature Range: Operates reliably from -70°C to +125°C, with derated power up to 125°C.
• Automotive-Grade Alternatives: While not PPAP-certified, its rugged design suits industrial and telecom applications.
• RoHS Non-Compliant: Note: Contains lead, requiring evaluation for restricted applications.

GUS-QS8A-03-4870-DB Applications

• Signal Conditioning: Precision voltage dividers in data acquisition systems and sensor interfaces.
• Medical Electronics: Stable resistance networks for patient monitoring equipment where drift is critical.
• Industrial Controls: Isolated feedback loops in motor drives and PLC modules.
• Telecom Infrastructure: Impedance matching in RF front-end circuits and baseband processing.
• Test & Measurement: Calibration circuits requiring sub-1% tolerance and low TCR.

Conclusion of GUS-QS8A-03-4870-DB

The GUS-QS8A-03-4870-DB excels in precision and reliability, leveraging thin-film technology and isolated resistor design for critical analog circuits. Its compact QSOP package, high power rating, and wide temperature range make it a superior choice over bulkier or less stable networks. While not RoHS-compliant, it remains a go-to solution for industrial, medical, and telecom designs demanding accuracy under thermal stress. Engineers will appreciate its balance of performance, size, and cost in high-density PCB layouts.