|
|
    As a manufacturer
of DC Power Supplies as well as a distributor of power semiconductors and extrusions, Darrah Electric
has become an ideal source for power semiconductor assemblies.Darrah Electric offers off the shelf delivery of high current SCR and diode stack assemblies available in all popular circuit configurations. Darrah's range of assemblies includes stud type, module and hockey puck styles in air and water-cooled designs. Choose from our common extrusions or send us your drawings for a quotation. We have state of the art in house computer assisted design, engineering, assembly and testing capabilities. Our value-added inventory supplies thousands of finished rectifier and SCR assemblies per year to customers worldwide. Darrah's Quality Control Department trains and monitors production personnel. Certifications, drawings and test reports are supplied with the finished product. To further enhance Darrah's assembly capabilities, stacks are 100% tested to customers specifications. Stud Type Power Assemblies Darrah Electric
offers a complete line of stud-mounted air and water-cooled assemblies. All common circuit configurations
are in stock ranging in current ratings from 10 through 750 amps output.Ask for Bulletin #7404 Power Semiconductor Assemblies Air Cooled Designs
Called Darrah Gold, this booklet offers a simple comprehensive building block approach to designing higher current assemblies, using rectifiers, thyristors and other disk type devices. Beginning with all common rectifier and thyristor circuits, Darrah Gold then lets you choose from over a dozen pre-machined aluminum extrusions. Darrah has selected optimized extrusions to support disk devices ranging in pole sizes from 19mm through 125mm diameters. Thermal ratings at natural convection cooled and forced air-cooled are given for each extrusion. Mechanical drawings are shown for single, two, three and six device assemblies. Darrah Gold bulletin then allows you to choose the best power semiconductor for your needs. Choose the worlds best manufacturers of rectifiers, thyristors, GTO's IGCT's and BCT's. All supported from technical data sheets and Darrah's engineering department. Darrah also provides passive components such as R/C Snubbers, bus bars, thermostats, fans, terminal strips and current transducers for your final assembly. Two pages are included for technical reference. Common circuit calculations are shown as well as handy conversions for airflow, velocity, thermal resistance and clamping force. Darrah Gold bulletin discusses our engineering support, assembly procedures and quality control. Darrah provides testing to 24,000 amps. Temperature chart recordings and burn in capabilities are available for prototype or production run products. Contact a Darrah Electric customer service representative for a copy of Darrah Gold or an assembly design guide. Call for your copy of Darrah Gold Bulletin (216) 631-0912. Module Type Power Assemblies  Darrah Electric offers off the
shelf delivery of air and water-cooled module assemblies. Circuits include, diodes, SCR's, Mosfets, IGBT's
and transistor types.Let Darrah complete your assembly with mounting rails, MOV's, R/C snubbers, thermostats, firing boards, fuses and fan's. Ask for Bulletin #7396. Darrah's Air Cooled Module Assemblies  Click to View Larger |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Home | DC Power Supplies | Power Semiconductors Power Semiconductor Assemblies | SCR Contactors for Resistance Welding Resistance Welding Safety Labels | DARREX AIR Alterrex Replacement Plating Rectifiers | SCR Firing Boards Excess Inventory Sale | Current & Voltage Sensors Power Semiconductor Solutions | Heat Sinks/Extrusions Bar Clamps for Disk-Type Devices | Semiconductor Testers GTO, Gate Turn-off Thyristors | Transit and Locomotive What's New? | Related Articles / Instructions Distributors Wanted | Contact Us Site Designed & Hosted by Marinar |
