Vishay

VTF281SUF

VTF281SUF Description

The VTF281SUF from Vishay is a high-precision thin-film resistor network designed for demanding voltage divider and signal conditioning applications. This 3-pin SIP (Single In-line Package) device features a conformal-coated construction, ensuring robust protection against environmental factors. With a 900KΩ/100KΩ resistance ratio and an ultra-tight 0.1% tolerance, it delivers exceptional accuracy for precision circuits. The network operates over a 0°C to 70°C range, with a low ±10ppm/°C temperature coefficient, minimizing drift in critical applications. Rated for 100V maximum voltage and 0.5W total power dissipation, it combines reliability with compact dimensions (8.13mm x 2.54mm x 7.11mm).

VTF281SUF Features

• Precision Thin Film Technology: Ensures low noise and high stability.
• 0.1% Tolerance: Superior accuracy for voltage division and feedback networks.
• ±10ppm/°C TCR: Minimal resistance variation over temperature.
• Conformal Coating: Enhances durability in humid or corrosive environments.
• Through-Hole SIP Package: Easy PCB integration with 2.54mm terminal pitch.
• RoHS Compliant: Meets environmental standards for global use.
• Low Power Dissipation (0.1W per resistor): Ideal for energy-sensitive designs.

VTF281SUF Applications

This resistor network excels in:

• Precision Voltage Dividers: Used in ADC/DAC reference circuits and sensor interfaces.
• Medical Equipment: High-accuracy signal conditioning in diagnostic devices.
• Industrial Controls: Stable feedback networks for PLCs and instrumentation.
• Test & Measurement: Calibration and attenuation circuits requiring minimal drift.
• Automotive (Non-Automotive Rated): Prototyping or benign-environment applications.

Conclusion of VTF281SUF

The VTF281SUF stands out for its combination of precision, stability, and ruggedness, making it a top choice for engineers designing critical analog circuits. Its conformal coating and tight TCR address challenges in harsh environments, while the SIP package simplifies assembly. While not PPAP or automotive-rated, it remains a cost-effective solution for industrial, medical, and lab-grade electronics where accuracy and longevity are paramount.