TT Electronics/IRC

GS4B035490GT

GS4B035490GT Description

The GS4B035490GT from TT Electronics/IRC is a high-performance 7-resistor bussed network in an 8-pin narrow SOIC package. Designed for precision applications, it features a 549Ω resistance value with a tight ±2% tolerance and an ultra-stable ±25ppm/°C temperature coefficient. The network employs thin-film technology on a ceramic substrate, ensuring excellent thermal stability and reliability across an operating temperature range of -70°C to +125°C. With a 0.4W total power rating (0.05W per resistor) and a 100V maximum voltage rating, this component is ideal for demanding circuit designs requiring consistent performance under varying conditions. Its gull-wing termination and surface-mount design facilitate easy PCB integration.

GS4B035490GT Features

• Ceramic SOIC Package: Robust construction with rectangular shape (4.9mm × 5.99mm × 1.45mm) and tight dimensional tolerances (±0.1mm length/height, ±0.2mm depth).
• Bussed Network Architecture: Simplifies circuit design by interconnecting resistors via a common bus (BUS designator).
• High Precision: ±2% tolerance and ±25ppm/°C TCR ensure minimal drift in critical applications.
• Wide Temperature Range: Operates reliably from -70°C to +125°C, with derated power up to 125°C.
• Thin-Film Technology: Delivers superior stability and low noise compared to thick-film alternatives.
• Automotive-Grade Alternatives: While this model is not PPAP or automotive-qualified, its performance parallels higher-tier options.

GS4B035490GT Applications

• Signal Conditioning: Precision voltage dividers and pull-up/down networks in sensor interfaces.
• Industrial Controls: Stable resistance networks for PLC modules and process instrumentation.
• Test & Measurement Equipment: High-accuracy circuits in calibration devices and data acquisition systems.
• Power Management: Auxiliary circuits in DC-DC converters requiring stable bias networks.
• Aerospace & Defense: Non-critical subsystems where ceramic reliability and thermal resilience are prioritized.

Conclusion of GS4B035490GT

The GS4B035490GT excels in applications demanding precision, thermal stability, and compact integration. Its ceramic thin-film construction and bussed design reduce board space while maintaining performance, making it a cost-effective alternative to discrete resistors in space-constrained designs. Though not RoHS-compliant, it remains a robust choice for industrial and instrumentation markets where reliability outweighs regulatory constraints. Engineers should evaluate its non-automotive status but can leverage its high TCR stability for prototyping or niche commercial systems.