Malvern, Pa. Vishay Intertechnology, Inc. has released a new 1/10-W surface-mount Power Metal Strip resistor that is said to be the industry's smallest such device to combine a low 15 milliohm to 100 milliohm resistance value range, a tight tolerance of 1%, and low resistance temperature characteristics (RTC) values down to ±75 ppm/°C. All these features enable the design of smaller and lighter end products.
Due to the combination of small footprint, low resistance values, and low RTC, the new WSL0603 resistor also assists in current sensing accuracy, which allows designers to use lower cost ICs, said the company. In addition, these devices may be used as replacements for larger components or multiple high-value resistors running in parallel to provide a greater space savings on the printed-circuit-board for all types of current sensing, voltage division and pulse applications.
Available in the 0603 package size, the WSL0603 resistor 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/dc converters in computers.
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 new device, which features an all-welded construction with solderable terminations, can be placed with automated assembly equipment. It is available with a solid metal nickel-chrome alloy resistive element.
Pricing for the WSL0603 starts at $0.22 each in quantities of 10,000 for U.S. delivery. Available in tape-and-reel packaging, samples and production quantities are available now with a lead time of four to five weeks for larger orders.
Vishay Intertechnology, Inc., 1-402-563-6320, www.vishay.com