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4309R-101-331LF

4309R-101-331LF Description

The 4309R-101-331LF from Bourns Inc. is a high-performance 8-resistor bussed network designed for precision applications. With a 330Ω resistance per element and a tight ±2% tolerance, this through-hole-mounted array ensures reliable signal conditioning and voltage division. Its compact 0.884" x 0.085" (22.45mm x 2.16mm) footprint and 4.95mm seated height make it suitable for space-constrained PCBs. The device operates within a ±100ppm/°C temperature coefficient and offers 200mW power dissipation per resistor, ensuring stability under varying thermal conditions. Packaged in a 9-pin SIP (Single In-line Package) and supplied in tubes, it adheres to ROHS3 and REACH compliance standards.

4309R-101-331LF Features

• Bussed Circuit Topology: Simplifies design by connecting one side of all resistors, reducing wiring complexity.
• Low Resistor-Ratio Drift (50ppm/°C): Maintains consistent performance in temperature-sensitive environments.
• High Power Handling (200mW/Element): Supports robust current loads without derating.
• Wide Operating Range: Withstands industrial temperature fluctuations thanks to its ±100ppm/°C TCR.
• MSL Not Applicable: Eliminates moisture sensitivity concerns during storage and assembly.

4309R-101-331LF Applications

Ideal for analog signal processing, voltage divider networks, and pull-up/pull-down resistor arrays in:

• Industrial Control Systems: PLCs and sensor interfaces requiring stable resistance ratios.
• Consumer Electronics: Audio equipment and display drivers where space efficiency is critical.
• Automotive Electronics: Engine control units (ECUs) benefiting from its vibration-resistant through-hole design.
• Test & Measurement Equipment: Precision instrumentation demanding low drift and high repeatability.

Conclusion of 4309R-101-331LF

The 4309R-101-331LF stands out for its compact form factor, high power tolerance, and exceptional thermal stability, making it a superior choice over discrete resistors in multi-channel designs. Its bussed architecture reduces PCB clutter, while Bourns' quality assurance ensures long-term reliability. Engineers seeking a cost-effective, high-density solution for signal conditioning or bias networks will find this resistor array indispensable.