The 628B471TR4 is a thick film resistor network array manufactured by BI Technologies. This resistor network is designed to provide precise and stable resistance values in various electronic circuits. It is commonly used to reduce component count and assembly costs, improve circuit board density, and enhance reliability.

Applications

• Voltage Dividers: Used to create precise voltage levels for biasing and reference circuits.
• Current Limiting: Employed to limit current in LED circuits, transistor base circuits, and other sensitive components.
• Pull-up/Pull-down Resistors: Used in digital circuits to define logic states and prevent floating inputs.
• Feedback Resistors: Incorporated into operational amplifier circuits for gain setting and stabilization.
• Line Termination: Utilized to terminate transmission lines, reducing signal reflections and ensuring signal integrity.

Features

• Thick Film Technology: Provides excellent stability and precision.
• Multiple Resistors in One Package: Reduces component count and board space.
• Low Temperature Coefficient: Ensures stable resistance values over a wide temperature range.
• RoHS Compliant: Environmentally friendly, adhering to Restriction of Hazardous Substances standards.
• Surface Mount Package: Facilitates automated assembly and high-density circuit designs.

Benefits

• Reduced Component Count: Simplifies circuit design and assembly, leading to lower manufacturing costs.
• Improved Board Density: Allows for more compact circuit layouts, optimizing space utilization.
• Enhanced Reliability: Minimizes the number of solder joints, reducing potential failure points.
• Precise Resistance Values: Ensures accurate circuit performance and stable operation.
• Simplified Inventory Management: Reduces the number of unique components that need to be stocked and managed.

Additional Details

The 628B series resistor network array consists of multiple resistors with a common termination. The resistance value and tolerance are typically indicated on the package. This particular model, 628B471TR4, has a 470 ohm resistance and a tolerance that can be confirmed from the manufacturer's datasheet. It is designed for surface mount technology (SMT) assembly. The operating temperature range and power dissipation ratings are crucial parameters for proper application. The resistor network’s construction and materials contribute to its long-term stability and reliability in demanding environments. The standard package is suitable for automated pick-and-place equipment, further streamlining the assembly process. These arrays are suitable for a range of applications requiring stable and matched resistor values. Proper thermal management should be considered for high-power applications.