Riedon offers easy customization of wirewound resistors
PRESS RELEASE:
Alhambra, California, USA, 22 March 2013 – Specialist manufacturer and supplier of cutting-edge, resistive solutions, Riedon, provides all the advantages of precision wirewound resistor technology with designs that are easily customized for specific applications and can also be produced economically in low volumes.
Riedon’s standard wirewound resistors are offered in various series to meet different performance requirements across a range of body styles. These include precision, axial-leaded parts, such as its 100, SM and PC series devices as well as the high-power axial and aluminum-housed resistors in its UT and UAL series. Surface mount options are also available in its S and SL series of wirewound devices.
Wirewound resistors offer levels of performance that cannot be matched by other resistor technologies; they can be manufactured with great precision, enabling tolerances down to 0.005%. They are extremely stable (15 to 50ppm/year) and operate reliably over extremely wide temperature ranges, from -55oC to +350oC, with temperature coefficients (TCR) as low as 1ppm/oC. In addition, wirewound resistors can handle high level pulses and transients, and dissipate substantial amounts of power, up to 2.5kW in some instances.
According to Riedon’s VP Engineering, Phil Ebbert, “Wirewound devices provide the best, and sometimes the only, solution for many applications and excel where accuracy is important. For example, wirewound resistors remain the technology of choice for demanding pulse-rated applications.”
Ebbert went on to explain, “The relatively simple construction of a wirewound resistor, which has remained unchanged for many years, allows them to be easily customised. Not only can engineers specify exactly what they require, but the manufacturing process also enables us to supply in quantities of hundreds, rather than tens of thousands, if required.”
More information on Riedon’s standard resistor product lines and options for custom designs are available from www.riedon.com or by contacting Riedon directly for samples and quotations.
Riedon’s Low Ohm Resistors
Sudden current or voltage changes are often hazardous to electronic products. For example, transients or surges that reach microprocessor or memory components can destroy those expensive parts, and wipe out critical programming and data. Many electronic products now include surge protection circuits.
In these circuits, low value resistors sense when the current is too high so that measures can be taken upstream before the excess current causes damage. Wirewound resistors are a popular choice for these applications. They are inexpensive, available in low resistance values, have low temperature coefficients and good surge-handling capability. Riedon has served this application for years with their "LO OHM" power resistors
High Temperature Resistors
Riedonhas been at the cutting edge of resistive solutions for more than 40 years. High temperature resistors are in demand in many applications, now more than ever!
Riedon's Wirewound, Thick & Thin Film, and also Foil resistive products can be seen in industries as diverse as: Aerospace, Military, Instrumentation, and Medical Devices. Here is the list of our "high temperature" resistors:
CHR Series - Non Magnetic Chip Resistors
(-55°C to +155°C - Standard)
(-55°C to +300°C - HT Version)
HVS Series - High Resistance - Thick Film Chip Resistors
(-55°C to +155°C to 250°C upon request)Wirewound HT Type S and SL - Surface Mount Power Resistors
(-55°C to +275°C)UT Series - Silicone Coated Power Resistors
(-55°C to +250°C) ane (-55°C to +350°C)
100 Series, SM Series, PC Series - Precision Wirewound Resistors
(-55°C to +145°C)
Please call us at Riedon to get more information: +1 (626) 284-9901 (M-F, 6am-5pm PST)
Riedon’s Custom Resistors
Resistors
Flexibility is a key design feature in Riedon resistors, and we structure our manufacturing processes to support this concept. Our goal is to build advanced products that meet your exact requirements, yet complete the process from design to delivery in a minimum time and at a reasonable cost.
Sub-Assemblies and Cable Assemblies
Our flexible manufacturing facility can assemble resistors into higher-level assemblies, simplifying your procurement and manufacturing.
Custom Winding
Riedon's winding expertise is available to solve your custom component needs. We specialize in precision manufacturing using highly managed processes and quality systems. Call us for solutions to special components like resistance flow meter elements, specialized resistive or inductive sensors, coils for linear and rotary motion actuators, and similar wirewound devices.
Precision Compensation Resistors
Riedon's resistors are used for temperature-compensation in many instruments and transducers. These resistors are made with special wire that has the proper temperature coefficient to provide compensation for precision instruments.
Using Power Resistors as Heaters
Riedon surface mount and leaded Resistors
Power resistors and resistance heaters share many common design considerations. In both products, good thermal design ensures low thermal resistance between the element and the exterior environment. Both must be rugged and reliable.
Power resistors are often used in heater applications. They allow a designer to apply and control heat to a small area. Riedon offers a broad range of these resistors. If one of our standard resistors won't do we can modify existing products or create new designs to fit your special requirements.
Riedon power resistors are used in a variety of heater applications. They are especially useful in situations where the heat must be isolated or concentrated in a small area.
Current Sensing Resistors
Sudden current or voltage changes are often hazardous to electronic products. For example, transients or surges that reach microprocessor or memory components can destroy those expensive parts, and wipe out critical programming and data. Many electronic products now include surge protection circuits.
In these circuits, low value resistors sense when the current is too high so that measures can be taken upstream before the excess current causes damage. Wirewound resistors are a popular choice for these applications. They are inexpensive, available in low resistance values, have low temperature coefficients and good surge-handling capability. Riedon has served this application for years with their "LO OHM" power resistors.
Riedon’s SL resistors add an additional application advantage. We designed them for PC board surface mounting to satisfy the growing demand for new high density boards fabricated with automated pick-and-place equipment.
A Praise For Riedon Resistors!
We received this email from a valued customer which we would like to share with you:
"....I have been a strong advocate of Riedon resistors here at PCI and you make it easy for me to continue to be.
Riedon presently manufactures a shunt resistor of my design (Riedon P/N: SP1669-0R0013N1). I can tell you that this resistor has performed flawlessly and we have enjoyed 100% reliability – zero failures in over 4000 units (millions of unit-hours of operation)! Please convey my sincere gratitude to your workforce! Their attention to detail is evident in the quality of the product we receive from Riedon. Thank you!
~Performance Controls, Inc."
Are you looking for a quick turnaround for resistors?
How To Design Guide For Precision Resistors
Even in this digital age, a number of measurement and instrumentation applications rely on the accuracy of the value of one or more resistors.
To guarantee the performance of the system, the designer must understand what factors can affect the value of precision resistor, and how the combined effect of these factors may be evaluated.
There are essentially three types of error source to be understood. The first is measurement errors, which limit the precision with which the actual resistance value can be known. Secondly, short-term change factors, reflecting uncertainty in the resistance value in a customer's recently assembled PCB. Thirdly, long-term change factors, reflecting value drift throughout the product's life. The combination of all these factors is termed total excursion.
For more information on precision resistors click here.