Case Study: High-Power Surface Mount Wire-Wound Resistors in Automated SMT Production Lines in Europe

As industrial automation equipment in Europe and America continues to evolve towards miniaturization and high power density, more and more industrial power supplies and control modules are adopting surface mount technology (SMT) solutions to improve automated production efficiency and optimize PCB space layout. Against this backdrop, high-power surface mount wire-wound resistors, due to their combination of power handling capacity and stability, have gradually become one of the key passive components in industrial electronic design.

This customer is from the European industrial electronics market, primarily producing industrial power control modules and automated drive equipment. Their products operate under high temperature and continuous load environments for extended periods, placing high demands on the mechanical strength, thermal stability, and automated mounting compatibility of the resistors.

This project uses T/B (Tape Box) packaging, with a shipment quantity of 100,000 pcs, mainly for high-power control PCBs in automated SMT production lines.

To address the customer's needs for long-term stability and automated assembly, we provided the SMW Series Power Wire Wound Chip Resistors solution.

The product uses a UL94V-0 flame-retardant molding package, supports automated SMT placement, and has the following key parameters:

• This series of products complies with IEC 60115-1 and JIS C 5201-1 standards and is suitable for industrial control, power modules, and continuous load applications.

After completing SMT mass production testing, customers reported that this series of high-power surface mount wire-wound resistors exhibits good soldering stability and mechanical consistency during automated placement and performs stably under continuous load conditions.

Especially in high-temperature operating environments and compact PCB designs, the product's thermal stability and insulation performance meet the requirements of their industrial equipment applications. The customer expressed satisfaction with the packaging integrity and production consistency of this 100K batch delivery.

For the European and American industrial electronics markets, surface mount wire-wound resistors, which combine high power, miniaturization, and SMT compatibility with automation, are becoming essential components in industrial control and power supply systems.

As industrial equipment continues to evolve towards higher density and long-term stable operation, high-power SMD resistors, with their high-temperature stability, long-term load capacity, and reliable packaging structure, are expected to gain more attention in industrial automation applications.