TT Electronics/IRC

GS4A0249R9GCT

GS4A0249R9GCT Description

The GS4A0249R9GCT from TT Electronics/IRC is a high-precision 4-resistor isolated network in an 8-pin narrow SOIC package, designed for demanding circuit isolation applications. Featuring 49.9Ω resistance per element with a tight ±2% absolute tolerance and ±0.25% ratio tolerance, this thin-film ceramic-based network ensures stable performance across a wide temperature range (70°C to 125°C). Its ±50ppm/°C temperature coefficient and 100V maximum voltage rating make it suitable for precision analog and digital systems. The SOIC-C series construction offers superior thermal and mechanical stability, with a compact footprint (4.9mm × 5.99mm × 1.45mm) ideal for space-constrained designs.

GS4A0249R9GCT Features

• Isolated Resistor Network: Four independent thin-film resistors with 0.1W power rating per element (0.4W total).
• High Precision: ±2% tolerance and ±0.25% ratio tolerance for matched resistance values.
• Robust Construction: Ceramic substrate and gull-wing termination ensure reliability in harsh environments.
• Wide Operating Range: Stable performance from -55°C to +125°C (derated above 70°C).
• Low TCR: ±50ppm/°C minimizes resistance drift.
• Surface-Mount Design: 1.27mm terminal pitch for easy PCB integration.

GS4A0249R9GCT Applications

This resistor network excels in:

• Signal Conditioning: Precision voltage dividers and feedback networks in instrumentation.
• Industrial Controls: Isolated sensor interfaces and PLCs requiring stable resistance matching.
• Automotive Electronics: Non-automotive-grade but suitable for benign-environment prototyping.
• Medical Devices: Low-noise analog circuits where tolerance matching is critical.
• Test & Measurement Equipment: Calibration circuits and reference networks.

Conclusion of GS4A0249R9GCT

The GS4A0249R9GCT stands out for its precision, isolation, and compact form factor, making it ideal for applications demanding tight tolerance and thermal stability. While not PPAP or automotive-qualified, its ceramic construction and thin-film technology offer superior performance over standard thick-film networks. Engineers will appreciate its balance of accuracy, power handling, and space efficiency in high-reliability designs.