A wirewound resistor is an electrical passive device that limits or restricts current flow in a circuit. Wirewound resistors are constructed using a conductive wire. The conductive wire is then wound around a non-conductive core. The conductive wire can be made of varying alloys and thickness to control the resistance value. Wirewound resistors are typically used in high power and industrial applications such as circuit breakers and fuses.
Wirewound Construction
We offer over 20 different series in wirewound construction. which can be chosen based on mounting, application, and resistance range. Different types of wirewound resistors include Precision, Axial, Tubular, Surfacemount, and Adjustable, which all have good stability and resistance range, and are produced in many wattage sizes. The higher wattage wire wound resistors are used in High Current/Braking applications.
Ohmite's 20 Series axial terminal resistors are both durable and economical. They have all the electrical attributes of more expensive wire wound axial resistors, including all-welded construction.… Read More
Ohmite’s 200 series Brown Devil® is a small, exceptionally durable power resistor. It features all-welded construction and rugged, flame-resistant conformal lead-free vitreous enamel coating… Read More
Dividohm® Vitreous Enamel
Adjustable Power Resistor
Choose Ohmite’s 210 Type adjustable resistors for applications requiring settings at different resistance values. These wirewound resistors… Read More
Vitreous Enamel Power
Select 270 Type fixed resistors for applications requiring wattage ratings from 12 to 1000 watts. The 270 Type resistors are equipped with lug terminals suitable for… Read More
Corrib® Fixed and Adjustable
Vitreous Enamel Power
Corrib® resistors are ideal for applications involving high currents at very low resistance values—as low as 0.1Ω for the 300 Watt unit.… Read More
30 Series High Energy Wirewound
Axial Terminal / Surface Mount / Heat Sinkable Packaging
Wirewound Resistors employ special winding techniques to maximize the effective joule rating of each… Read More
Ohmite 40 Series resistors are the most economical conformal silicone-ceramic coated resistors offered. These all-welded units are characterized by their low-temperature coefficients and resistance… Read More
Automated winding, in-line color banding, and testing allow for an economically priced, industrial grade wirewound power resistor. The Ohmite 50 series resistors feature an all welded construction… Read More
Four Terminal Bare Element Resistors
Ohmite’s Four Terminal Bare Element Resistors provide ultra-low resistance values (to 0.0005Ω) for relatively high current requirements, with the advantages… Read More
Ohmite’s 80 series resistors are produced to be the highest quality conformal axial terminal silicone-ceramic coated resistors. The 80 series is designed for applications requiring high precision… Read More
The 89 Series is a high-performance axial heatsinkable resistor. These molded-construction metal-housed resistors are available in higher power ratings than standard axial resistors and are better… Read More
When you need the highest quality wirewound axial terminal resistors available, choose Ohmite’s 90 Series resistors.
They are manufactured by a unique process that molds the vitreous enamel… Read More
HS Aluminum Housed Resistors
Manufactured in line with the requirements of MIL 18546 and IEC 115, designed for direct heatsink mounting with thermal compound to achieve maximum performance.
High… Read More
HS Series Aluminum Housed Resistors
An extension of the popular Arcol HS Series, these aluminum housed resistors are designed to be mounted to a heatsink to achieve maximum wattage. Wound to… Read More
ARF Low Profile Wirewound Metal Clad Resistors offer a flexible design with high pulse capability. They are ideally suited to braking and inverter/converter applications. Enhanced power levels… Read More
RWS Precision Power Wirewound SMD Resistor
A compact and precision power resistor, manufactured to the highest standards; reliable and robust but still achieving drift of less than 1% and TCR… Read More
The ARG Series is a high-performance heatsinkable aluminum housed resistor. These aluminum housed resistors are suited to withstand industrial applications that may include vibration, shock,… Read More
Tubular Wirewound
Ohmite now offers the Audio Gold Resistor Family, specifically designed for high-end loudspeaker and amplifier applications. These resistors utilize high-quality resistance… Read More
Ohmite Axiohm series is best known for its inorganic flameproof coating and ability to be produced in tight tolerances. The Axiohm series was designed to meet or exceed the characteristics of… Read More
BA Series Aluminum Cased Resistors
The Ohmite BA series aluminum cased resistors are ideal for Dynamic Braking, Motor Starting, and other power control applications. The rugged design uses wirewound… Read More
Vitreous Enamel Power
Select Euro series fixed resistors for applications requiring wattage ratings from 72 to 1000 watts. Suitable for rugged applications, Euro-Power resistors are spot welded… Read More
Capacitor Mount, Discharge & Symmetry
The Ohmite G Series resistors are designed to mount on the most popular capacitor sizes. The G series carries a high power dissipation up to 13W @25°C… Read More
Resistor Load Banks
High Current Oval Edgewound
The choice when conditions demand top-notch performance, these resistor load banks are commonly used for dynamic braking on Transit applications… Read More
The HPW wirewound series of resistors are produced for high precision applications. The HPW series can be produced below 0.1% on request with Temperature Coefficients matching to 1ppm. The HPW… Read More
The HSP series from Ohmite is an axial terminated precision wirewound resistor. The HSP series is extremely stable with a temperature coefficient to 3ppm. This stability is obtained using a hermetically… Read More
Metalohm Series
The Metalohm Series by Ohmite is a cold rolled, steel-encased wirewound resistor that is flameproof and nonhygroscopic. Its heat sink capacity provides this product series with… Read More
The PC-58 series is designed for direct insertion into printed circuit boards; fit standard 0.10 inch matrix boards with standard 0.046 inch diameter holes. The PC-58 radial design and provided… Read More
The molded surface mount series is extremely versatile. 5 different construction types include: Composition, Metal film, Wirewound, Power Film and Thick film. Each construction is used to optimize… Read More
Ohmite's high power rheostats have been in use since 1925. The same robust design with wirewound construction is used today and continues to find new applications. The use of resistance wire… Read More
Ohmite has used its thermal management expertise to produce a unique resistor design. The resistor body incorporates fins identical to a heatsink. These fins, as with a heatsink, increase the… Read More
The TUM/TUW Series resistors are Ohmite’s most economical power resistors. Sizes up to 15 watts and resistance values up to 150K ohms are available. Two constructions are used to obtain a wide… Read More
The TWM/TWW series radial terminal power resistors offer significant board space savings over axial terminal products and keep generated heat away from the circuit board. They are recommended… Read More
Aluminum Housed Wirewound Power
Ohmite’s new flat core winding technology allows for wirewound heatsinkable resistors affording a very low profile, and superior thermal transfer characteristics… Read More
Miniature Wirewound
Current Sense
With ultra-low ohmic value series for Current Sensing applications, the WL series contains very low inductance (<1nH at 1MHz Test) with miniaturized dimensions… Read More
High Current Oval Edgewound Resistors
The choice when conditions demand top-notch performance, these resistors are commonly used for dynamic braking on Transit applications. Choose from five… Read More
Heliohm Wirewound
The WLRH is a tough, versatile resistor appropriate for the following applications: motor starting and speed control, neutral grounding, lighting ballasts, and A.C. compressor… Read More
WH/WN series contains two winding techniques. The WH is a standard wirewound resistor while the WN is wound using in the Aryton Perry non-inductive style. The inductance of the WN is <1nH at… Read More