TT Electronics/IRC

GS4B0278R7DT

GS4B0278R7DT Description

The GS4B0278R7DT from TT Electronics/IRC is a high-precision 7-resistor bussed network in an 8-pin narrow SOIC (SOIC-C) ceramic package. Designed for surface-mount applications, it features a 78.7Ω resistance per element with an absolute tolerance of ±0.5% and a low temperature coefficient of ±50ppm/°C, ensuring stable performance across a wide temperature range (70°C to 125°C). The thin-film technology delivers superior accuracy and reliability, while the ceramic case enhances thermal and mechanical durability. Rated for 0.05W (1/20W) per resistor and 0.4W total power dissipation, it supports 100V maximum voltage, making it suitable for demanding circuits.

GS4B0278R7DT Features

• Precision Network: 7 bussed resistors with ±0.5% tolerance and ±50ppm/°C TCR for minimal drift.
• Robust Construction: Ceramic SOIC package (4.9mm x 5.99mm x 1.45mm) with gull-wing terminals for secure SMT mounting.
• High Voltage Handling: 100V rating and derated power up to 125°C for harsh environments.
• Thin-Film Technology: Delivers low noise, high stability, and repeatable performance.
• Automotive-Grade Alternatives: While this model is not PPAP or automotive-qualified, its reliability suits industrial and telecom applications.

GS4B0278R7DT Applications

Ideal for precision analog circuits, voltage dividers, and bus termination in:

• Industrial Control Systems: Stable performance in PLCs and sensor interfaces.
• Telecommunications: Signal conditioning and impedance matching in RF modules.
• Test & Measurement Equipment: High-accuracy networks for calibration circuits.
• Power Management: Distributed resistor networks in DC-DC converters.

Conclusion of GS4B0278R7DT

The GS4B0278R7DT excels in precision and durability, offering tight tolerance, low TCR, and ceramic-enhanced reliability for critical SMT designs. Its bussed configuration simplifies layout in multi-resistor applications, while the SOIC package ensures compatibility with automated assembly. Though not RoHS-compliant, it remains a top choice for engineers prioritizing performance over regulatory constraints in industrial and telecom systems.