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High-Pulse Wirewound Resistors

Riedon's high-pulse wirewound resistors offer significant advantages over alternatives in many applications

Image of Riedon's High-Pulse Wirewound ResistorsRiedon’s wirewound resistors, with their high-power rating and high-temperature rating, are also easy to customize. Like every component, the fabrication technology used in resistor manufacture has changed over time, and resistive films have made a significant contribution in allowing the cost-effective mass production of devices that are increasingly miniaturized. Yet the traditional wirewound resistor, despite a substantial decline in the number of manufacturers of this component in recent decades, remains the best solution for many specialized applications.

One reason for the survival of wirewound resistors is that all of the alternative fabrication techniques have drawbacks. For example, the use of conductive inks to produce carbon film, or thick-film resistors can produce very-low-cost components; but the resulting devices have limited pulse handling, no better than 0.1% initial tolerance and poor long-term stability, typically 500 to 1,000 ppm/year. The resistance is temperature dependent, with a temperature coefficient of resistance (TCR) of around 50 to 100 ppm/°C. Moreover, relatively-high-current noise of -18 dB to -10 dB is typical, where: dB = 20 x log (noise voltage [in μV]/DC voltage [in V]).

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S Series Resistors

ImagenNúmero de pieza del fabricanteDescripciónCantidad disponible
RES SMD 100 OHM 1% 4W 8230S5-100RF2RES SMD 100 OHM 1% 4W 82301810 - InmediataVer detalles
RES SMD 1 OHM 1% 2W 4525S4-1RF1RES SMD 1 OHM 1% 2W 45251434 - InmediataVer detalles
RES SMD 470 OHM 1% 3W 6327S3-470RF1RES SMD 470 OHM 1% 3W 63272226 - InmediataVer detalles
RES SMD 15 OHM 1% 1W 2615S2-15RF1RES SMD 15 OHM 1% 1W 26151925 - InmediataVer detalles
RES SMD 15K OHM 1% 2W 4525S4-15KF1RES SMD 15K OHM 1% 2W 45257528 - InmediataVer detalles

UAL Series Resistors

ImagenNúmero de pieza del fabricanteDescripciónCantidad disponible
RES CHAS MNT 40 OHM 1% 50WUAL50-40RF8RES CHAS MNT 40 OHM 1% 50W1918 - InmediataVer detalles
RES CHAS MNT 1.5 OHM 1% 50WUAL50-1R5F8RES CHAS MNT 1.5 OHM 1% 50W868 - InmediataVer detalles
RES CHAS MNT 10 OHM 1% 10WUAL10-10RF8RES CHAS MNT 10 OHM 1% 10W219 - InmediataVer detalles
RES CHAS MNT 50 OHM 1% 10WUAL10-50RF8RES CHAS MNT 50 OHM 1% 10W172 - InmediataVer detalles
RES CHAS MNT 100 OHM 1% 10WUAL10-100RF8RES CHAS MNT 100 OHM 1% 10W161 - InmediataVer detalles

UB Series Resistors

ImagenNúmero de pieza del fabricanteDescripciónCantidad disponible
RES 200 OHM 5W 1% AXIALUB5C-200RF1RES 200 OHM 5W 1% AXIAL6025 - InmediataVer detalles
RES 10 OHM 5W 1% AXIALUB5C-10RF1RES 10 OHM 5W 1% AXIAL3511 - InmediataVer detalles
RES 220 OHM 5W 1% AXIALUB5C-220RF1RES 220 OHM 5W 1% AXIAL2683 - InmediataVer detalles
RES 120 OHM 5W 1% AXIALUB5C-120RF1RES 120 OHM 5W 1% AXIAL2000 - InmediataVer detalles
RES 8.2 OHM 5W 1% AXIALUB5C-8R2F1RES 8.2 OHM 5W 1% AXIAL1204 - InmediataVer detalles
Publicado: 2014-04-02