TT Electronics/IRC

GS4B0149R9JGT

GS4B0149R9JGT Description

The GS4B0149R9JGT from TT Electronics/IRC is a high-performance 7-resistor bussed network in an 8-pin narrow SOIC package, designed for precision applications requiring stable resistance and compact form factors. Built with thin-film technology on a ceramic substrate, it offers a 49.9Ω resistance per element with an absolute tolerance of ±5% and a ratio tolerance of ±2%, ensuring consistent performance in matched circuits. The device operates over a wide temperature range (-70°C to +125°C) with a low temperature coefficient of ±100ppm/°C, minimizing resistance drift. Its 0.4W total power rating (0.05W per resistor) and 100V maximum voltage rating make it suitable for moderate-power applications. The gull-wing termination and surface-mount design facilitate automated assembly, while the SOIC package (4.9mm x 5.99mm x 1.45mm) ensures compatibility with standard PCB layouts.

GS4B0149R9JGT Features

• Bussed Network Topology: Simplifies circuit design by connecting multiple resistors to a common node, ideal for pull-up/pull-down configurations.
• Ceramic Substrate: Enhances thermal stability and durability in harsh environments.
• Precision Thin Film: Delivers low noise and high accuracy (±5% tolerance, ±2% ratio tolerance).
• Wide Operating Range: Reliable performance from -70°C to +125°C with derating above 70°C.
• Compact SOIC Package: Space-saving 8-pin narrow SOIC (4.9mm length, 1.27mm pitch) for high-density designs.
• Automation-Friendly: Gull-wing leads enable seamless surface-mount (SMD) assembly.

GS4B0149R9JGT Applications

This resistor network excels in:

• Voltage Division & Bus Termination: Critical for digital signal integrity in communication interfaces (e.g., I²C, SPI).
• Sensor Biasing: Stable resistance for precision analog circuits in industrial sensors or medical devices.
• Power Supply Decoupling: Mitigates noise in DC-DC converters and voltage regulators.
• Automotive & Industrial Electronics: Despite non-automotive PPAP status, its wide temperature range suits non-safety-critical subsystems like infotainment or control modules.

Conclusion of GS4B0149R9JGT

The GS4B0149R9JGT combines precision, compactness, and thermal resilience, making it a versatile choice for bussed resistor networks in demanding electronics. Its ceramic construction, tight tolerances, and SOIC compatibility address challenges in signal conditioning, power management, and analog circuitry. While not RoHS-compliant, it remains a robust solution for industrial, telecom, and embedded systems where reliability outweighs regulatory constraints. Engineers seeking a cost-effective, space-optimized network with stable performance across temperatures will find this model highly advantageous.