Raleigh, N.C. Stackpole Electronics, Inc. has introduced a series of surface-mount MELF resistors. Designated the MLF series, these resistors have a thin-film nichrome resistive element that delivers excellent electrical characteristics along with low noise, high precision, and high environmental stability. These cylindrical-shaped MELF resistors typically exhibit better pulse power characteristics than thin-film chip resistor counterparts.
The MLF series is available in industry standard 0204 (roughly 3.45 x 1.35 mm) and 0207 (roughly 5.9 x 2.2 mm) size packages. Standard and high-power versions are available in wattages from 1/4 watt up to 1 watt. The MLF series is capable of tolerances down to .1% and temperature coefficient of resistance (TCR) values as low as 10 ppm. Typical resistance values from 10 ohms to 5.1 Mohms, although not all values are available in all size, tolerance, and TCR combinations.
The MLF resistors are suitable for applications that require robust pulse power handling and precision. Applications include high-speed power supplies and controls as well as utility metering and test equipment as well as all other types of power supplies and power control modules.
The MLF series is available in standard tape-and-reel packaging on a 7-inch reel. Standard reel quantity is 2,000 pieces for the MLF 1/2 watt and MLFM 1 watt, and 3,000 pieces for the MLF 1/4 watt and MLFM 1/2 watt.
Pricing: Typically ranges from $60 to $600 per thousand, depending on size, tolerance, TCR and volume.
Product information: MLF series
Stackpole Electronics, Inc., 1-919-850-9500, www.seielect.com