TT Electronics/IRC

GS4A0390R9JT

GS4A0390R9JT Description

The GS4A0390R9JT from TT Electronics/IRC is a high-performance ceramic resistor network designed for precision applications. Housed in an 8-pin narrow SOIC package, it features four isolated thin-film resistors, each with a resistance value of 90.9Ω and a tight tolerance of ±5%. The device operates over a wide temperature range (-70°C to +125°C) with a low temperature coefficient of ±25ppm/°C, ensuring stable performance under thermal stress. Its 0.1W power rating per resistor (0.4W total) and 100V maximum voltage rating make it suitable for demanding circuits. The gull-wing termination and surface-mount design facilitate easy PCB integration, while the ceramic case enhances durability and heat dissipation.

GS4A0390R9JT Features

• Isolated Resistors: Four independent resistors for flexible circuit design.
• High Stability: ±25ppm/°C TCR ensures minimal resistance drift.
• Robust Construction: Ceramic SOIC package offers superior thermal and mechanical resilience.
• Precision Tolerance: ±5% absolute tolerance for consistent performance.
• Compact Dimensions: 4.9mm (L) × 5.99mm (D) × 1.45mm (H) with tight tolerances (±0.1mm to ±0.2mm).
• Wide Operating Range: -70°C to +125°C with derated power up to 125°C.
• Surface-Mount Ready: Gull-wing terminals with 1.27mm pitch for reliable soldering.

GS4A0390R9JT Applications

This resistor network excels in precision analog circuits, signal conditioning, and isolation applications, including:

• Industrial Control Systems: Stable performance in harsh environments.
• Medical Electronics: Reliable signal integrity in diagnostic equipment.
• Telecommunications: Low-noise signal processing in RF modules.
• Automotive (Non-Automotive Qualified): Auxiliary circuits where high-temperature stability is critical.
• Test & Measurement Equipment: Accurate voltage division and calibration.

Conclusion of GS4A0390R9JT

The GS4A0390R9JT stands out for its combination of precision, isolation, and ruggedness, making it ideal for applications requiring thermal stability and compact form factors. While not PPAP or automotive-qualified, its ceramic construction and thin-film technology provide superior reliability compared to standard epoxy-based networks. Engineers will appreciate its ease of integration and consistent performance in critical circuits.