TT Electronics/IRC

GS4A0390R9DT

GS4A0390R9DT Description

The GS4A0390R9DT from TT Electronics/IRC is a high-precision 4-resistor network designed for demanding isolation applications. Housed in an 8-pin narrow SOIC ceramic package, it features isolated thin-film resistors with a tight tolerance of ±0.5% and a low temperature coefficient of ±25ppm/°C, ensuring stability across a wide operating range (70°C to 125°C). Each resistor offers 90.9Ω resistance with a 0.1W (1/10W) power rating per element (0.4W total). The gull-wing termination and surface-mount design facilitate easy PCB integration, while the 100V maximum voltage rating makes it suitable for high-reliability circuits.

GS4A0390R9DT Features

• Precision Performance: ±0.5% absolute tolerance and ±25ppm/°C TCR for stable operation in varying environments.
• Robust Construction: Ceramic SOIC package ensures durability and thermal stability.
• Isolated Design: Independent resistors prevent crosstalk, ideal for signal isolation.
• Compact Dimensions: 4.9mm (L) × 5.99mm (D) × 1.45mm (H) with tight tolerances (±0.1mm L/H, ±0.2mm D).
• High Voltage Handling: Supports up to 100V, suitable for industrial and automotive-grade applications (though non-PPAP/Automotive certified).
• Surface-Mount Ready: 1.27mm terminal pitch for efficient assembly.

GS4A0390R9DT Applications

This resistor network excels in:

• Signal Conditioning: Precision voltage dividers or feedback networks in analog circuits.
• Isolation Circuits: Buffering or decoupling in communication interfaces (e.g., RS-485, CAN).
• Test & Measurement Equipment: High-accuracy instrumentation requiring stable resistance values.
• Industrial Controls: PLCs, motor drives, and power supplies where thermal drift must be minimized.
• Medical Electronics: Isolated sensor interfaces due to low TCR and high reliability.

Conclusion of GS4A0390R9DT

The GS4A0390R9DT stands out for its precision, isolation, and compact form factor, making it a superior choice for applications demanding stable resistance under thermal stress. While not PPAP/Automotive compliant, its ceramic construction, thin-film technology, and tight tolerances cater to high-performance industrial and medical designs. Engineers will appreciate its balance of accuracy, power handling, and ease of integration, particularly in space-constrained or noise-sensitive systems.