Raleigh, N.C. Offering two to three times greater voltage ratings than standard or pulse-rated leaded resistors, the MG series of high-voltage metal glaze axial-leaded resistors from Stackpole Electronics Inc. allows designers to replace multiple parts or more expensive solutions with a single component.
The MG Series is constructed using thick-film metal glaze technology, which is said to provide excellent voltage characteristics, and is offered in standard axial-leaded sizes with power ratings of 1/4 watt, 1/2 watt, 1 watt, and 2 watt. These devices also tout a high-ohmic capability with a resistance value range of 100 Kohm to 200 Mohm. The series offers tolerances as low as 1% and temperature coefficients of 200 ppm.
The MG series offers voltage ratings of 1600 V for the 1/4 watt, 2000 V for the 1/2 watt, and 3500 V for the 1- and 2-watt devices. Because the voltages are two to three times greater than the highest working voltage of standard or pulse-rated leaded resistors, a single MG resistor can replace two or three other resistors, which offers several benefits including lower manufacturing costs and smaller size and weight of the end product.
These devices may be used in a variety of applications such as voltage division, circuit protection, inrush current limiting, and any other high impedance requirements. This makes them suited for medical applications such as EKG, ECG, and heart defibrillators, and industrial machinery and welding equipment, both of which typically require voltages higher than what a standard resistor can withstand. They may also find homes in power distribution in buildings and between buildings which require the use of a high-voltage resistor in protection circuitry.
The MG series is available in bulk, ammo pack, and tape-and-reel. Typical pricing ranges from $0.04 to $0.20, depending on power rating, ohmic value and tolerance. Delivery is eight weeks.
Stackpole Electronics Inc., 1-919-850-9500, www.seielect.com