TT Electronics/IRC

GS4B026490CBT

GS4B026490CBT Description

The GS4B026490CBT from TT Electronics/IRC is a high-precision thin-film resistor network designed for demanding electronic applications. This 7-resistor array features a 649Ω resistance value with an ultra-tight 0.25% tolerance and a low ±50ppm/°C temperature coefficient, ensuring stable performance across a wide temperature range of 70°C to 125°C. Housed in a ceramic SOIC-8 package with gull-wing SMD termination, it offers excellent thermal stability and mechanical durability. The device delivers a total power rating of 0.4W (0.05W per resistor) and supports a maximum voltage rating of 100V, making it suitable for precision analog and digital circuits. Its compact dimensions (4.9mm x 5.99mm x 1.45mm) and surface-mount design facilitate high-density PCB layouts.

GS4B026490CBT Features

• Precision Thin-Film Technology: Delivers high accuracy (±0.25%) and low TCR (±50ppm/°C).
• Robust Ceramic Package: Ensures thermal stability and reliability in harsh environments.
• BUS Circuit Designator: Optimized for bus termination and voltage division applications.
• High Power Density: 0.4W total dissipation (0.05W per resistor) in a compact SOIC footprint.
• Wide Operating Range: Rated for -55°C to +125°C, with derated power up to 125°C.
• Automotive-Grade Alternatives: While this model is not PPAP or automotive-qualified, similar variants are available for automotive use.

GS4B026490CBT Applications

• Voltage Division & Bus Termination: Ideal for precision analog circuits, ADC/DAC interfaces, and memory bus networks.
• Industrial Control Systems: Suitable for PLCs, sensor signal conditioning, and feedback loops.
• Test & Measurement Equipment: Ensures accuracy in oscilloscopes, multimeters, and calibration devices.
• Medical Electronics: Used in diagnostic equipment where stability and low drift are critical.
• Aerospace & Defense: Reliable performance in avionics and communication systems.

Conclusion of GS4B026490CBT

The GS4B026490CBT excels in applications requiring high precision, thermal stability, and compact design. Its ceramic construction, tight tolerance, and low TCR make it superior to standard thick-film networks, particularly in environments with fluctuating temperatures. While not automotive-compliant, it is a cost-effective solution for industrial, medical, and instrumentation designs. Engineers will appreciate its balance of performance, reliability, and space-saving form factor.