WSL0603 Low Value 0.10-W Surface-Mount Power Metal Strip® Resistor

Vishay's WSL0603, a 1/10 W surface-mount Power Metal Strip resistor, is one of the industry's smallest such devices to combine a low 15 mΩ to 100 mΩ resistance value range, a tight tolerance of 1%, and low RTC values down to ±75 ppm/°C.

Available in the compact 0603 package size, the WSL0603 resistor serves in all types of current-sensing, voltage division, and pulse applications. It is intended for power management in cell phones and pagers; electronic automotive systems including engine controls, audio electronics, and climate controls; and disc drive motor control and dc to dc converters in computers.

With its very small footprint, low resistance values, and low RTC, this resistor facilitates current-sensing accuracy, which in turn allows designers to use lower-cost ICs. The surface-mount WSL0603 resistor may be used in lieu of larger components or multiple high-value resistors running in parallel to provide space savings on the printed circuit board, thereby enabling design of smaller and lighter end products.

In addition to a power rating of 0.1 W, the Vishay Dale WSL0603 offers low inductance values from 0.5 nH to 5 nH, excellent frequency response, and low thermal EMF. It is rated for an operating temperature range of -65°C to +170°C.

The device, which features an all-welded construction with solderable terminations, is easily placed with automated assembly equipment. It is available with a solid metal nickel-chrome alloy resistive element.

Applications

• Cell phone battery fuel gauges
• Disc drive motor controls
• DC/DC converters in cell phones, pagers