Overview
The ERJ1GNF1004C is a surface-mount chip resistor belonging to the thick-film resistor family. Designed for high-density PCB applications, this component offers reliable performance in a compact 0402 package size (1.0mm × 0.5mm). As a passive electronic component, it serves fundamental functions in circuit design, including current limiting, voltage division, and impedance matching. Its standardized dimensions and termination make it compatible with automated assembly processes, streamlining manufacturing.
Structure and Working Principle
The ERJ1GNF1004C consists of a ceramic substrate coated with a resistive thick-film layer, typically composed of ruthenium oxide. Metal terminations at both ends provide electrical connection to the circuit board. When current flows through the resistor, the thick-film layer opposes the flow proportionally to its resistance value (100kΩ for this model). The component's power dissipation capability (typically 1/16W) is determined by its size and material properties.
Key Features
This resistor offers ±1% tolerance, ensuring precise resistance values for critical applications. Its compact 0402 footprint allows high-density PCB layouts, while the thick-film construction provides stable performance across temperature variations. The component features lead-free terminations compatible with standard soldering processes. It operates effectively across a -55°C to +155°C temperature range, making it suitable for various environmental conditions.
Application Areas
ERJ1GNF1004C resistors are extensively used in consumer electronics like smartphones, tablets, and wearables due to their small size. They're equally valuable in automotive electronics for sensor interfaces and control modules. Industrial applications include process control equipment and measurement devices. Their reliability also makes them suitable for medical devices where consistent performance is critical.
Maintenance and Precautions
During installation, avoid mechanical stress that could crack the ceramic substrate. Follow recommended soldering profiles to prevent thermal damage to the resistive element. In operation, ensure the actual power dissipation remains below the rated 1/16W (62.5mW) to prevent overheating. For high-reliability applications, consider derating the power specification at elevated temperatures.
B2B Procurement Guide
When sourcing ERJ1GNF1004C resistors, verify manufacturer certifications (such as AEC-Q200 for automotive applications). Request detailed specifications including temperature coefficient and long-term stability data. Consider minimum order quantities and lead times, as these standard components are often available from stock with major distributors. For volume purchases, negotiate pricing based on quantity tiers and packaging preferences (tape-and-reel vs. bulk).
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