TT Electronics/IRC

GS4B029091GDT

GS4B029091GDT Description

The GS4B029091GDT from TT Electronics/IRC is a high-performance 7-resistor bussed network in an 8-pin narrow SOIC package. Designed with thin-film technology on a ceramic substrate, it offers a 9.09KΩ resistance per element with a tight ±2% absolute tolerance and ±0.5% ratio tolerance, ensuring precision in matched resistance applications. The device operates over a wide temperature range (-55°C to +125°C) with a ±50ppm/°C temperature coefficient, making it stable under thermal stress. Its 0.4W total power rating (0.05W per resistor) and 100V maximum voltage rating suit demanding circuits. The gull-wing termination and surface-mount design (4.9mm x 5.99mm x 1.45mm) facilitate compact PCB integration.

GS4B029091GDT Features

• Ceramic case for enhanced thermal stability and durability.
• Bussed topology simplifies circuit design by connecting resistors in a common configuration.
• Low TCR (±50ppm/°C) minimizes resistance drift across temperatures.
• High power density (0.4W total) in a compact SOIC footprint.
• RoHS non-compliant (note for legacy or specific industrial applications).
• Precision-matched resistors with ±0.5% ratio tolerance for differential signaling or voltage division.
• Automotive-grade alternatives available (though this variant is not PPAP/automotive-certified).

GS4B029091GDT Applications

Ideal for precision analog circuits, medical instrumentation, and industrial control systems where stable resistance matching is critical. Commonly used in:

• Voltage dividers and current-limiting networks in power supplies.
• Sensor signal conditioning (e.g., bridge circuits).
• ADC/DAC reference networks requiring low drift.
• Legacy equipment maintenance due to non-RoHS compliance.

Conclusion of GS4B029091GDT

The GS4B029091GDT excels in space-constrained, high-reliability applications demanding tight tolerance and thermal stability. Its ceramic construction and thin-film technology provide superior performance over polymer-based networks, while the bussed design reduces component count. While not suited for automotive use, it remains a robust choice for industrial, medical, and precision electronics. Engineers should verify RoHS compliance for their specific market requirements.