The WR04X221JTL is a chip resistor manufactured by Walsin Technology Corporation. It is part of the WR series, which consists of thick film chip resistors designed for surface mount technology (SMT) assembly. This particular resistor has a resistance value of 220Ω and is used in various electronic applications requiring precise and reliable resistance.

Applications

• Current limiting in LED lighting circuits.
• Signal termination in communication circuits.
• Pull-up and pull-down resistors in digital circuits.
• Voltage dividers in analog circuits.
• Filtering in power supply circuits.

Features

• Resistance Value: 220Ω
• Tolerance: ±5%
• Temperature Coefficient of Resistance (TCR): ±200 ppm/°C
• Power Rating: 0.063W (1/16W)
• Package Size: 0402 (1.0mm x 0.5mm)
• Termination: Nickel Barrier
• RoHS Compliant

Benefits

• Small size enables high-density circuit board designs.
• Stable resistance value over a wide temperature range.
• High reliability ensures consistent performance in various applications.
• Cost-effective solution for general-purpose resistance requirements.
• Easy to assemble using standard SMT equipment and processes.
• Environmentally friendly due to RoHS compliance.

Additional Details

The 0402 package size is a standard miniature size for chip resistors, making it suitable for applications where space is limited. The ±5% tolerance specifies the acceptable variation in the actual resistance value. The temperature coefficient of resistance (TCR) indicates how much the resistance changes per degree Celsius change in temperature. The nickel barrier termination ensures excellent solderability and prevents solder leaching during reflow soldering. Thick film resistors are widely used due to their stability and cost-effectiveness.

This resistor is a common choice for general-purpose applications that require a small, reliable, and cost-effective 220Ω resistance.