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Dynamic Braking Resistors (DBRs)

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General Specifications




   Configuration:       
   Your choices are...
 
      
 
   Single Resistor
 
     Single resistors are standard, passive resistors with a single resistance value.
 
   Resistor Array
 
     Resistor chip arrays contain several resistors housed in a single package.
 
   Other
 
     Other unlisted, specialized, or proprietary configurations.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Mounting / Packaging       
   Your choices are...
 
      
 
   Surface Mount (SMT / SMD)
 
     Surface mount technology (SMT) adds components to a printed circuit board (PCB) by soldering component leads or terminals to the top surface of the board. SMT devices (SMD) have a flat surface that is soldered to a flat pad on the face of the PCB. Typically, the PCB pad is coated with a paste-like formulation of solder and flux. With careful placement, SMT components on solder paste remain in position until elevated temperatures, usually from an infrared oven, melt the paste and solder the component leads to the PCB pads.
 
   Bolt-on (Chassis)
 
     Chassis mounted devices bolt onto or within a structure’s supporting frame, typically in a metal-to-metal configuration for better heat dissipation. Some chassis types are designed to be mounted within a rack.
 
   Panel Mount
 
     Panel-mounted devices have a threaded bushing which surrounds the shaft.
 
   Through Hole
 
     Through hole technology (THT) mounts components on a printed circuit board (PCB) by inserting component leads through holes in the board and then soldering the leads in place on the opposite side of the board.
 
   Other
 
     Other unlisted, specialized, or proprietary configurations.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Performance Specifications




   Resistance Range
 
     The device's resistance range. 
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Tolerance
 
     Resistance tolerance is usually expressed a percentage.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Temperature Coefficient (TCR)
 
     Temperature coefficient of resistance (TCR) measures the rate at which the nominal resistance changes as a function of temperature. TCR is expressed in parts per million (ppm) per degree Celsius (C), or ppm/C.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Power Rating
 
     Power rating is the maximum real power in watts (W) that the resistor supports.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Dielectric Strength
 
     Dielectric strength is the maximum voltage that can be applied without destroying the resistor's dielectric.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Operating Temperature
 
     This is the full-required range of ambient operating temperature.
 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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Standards and Features




   Standard and Compliances       
   Your choices are...
 
      
 
   RoHS Compliant
 
     Restriction of Hazardous Substances (RoHS) is a European Union (EU) directive that requires all manufacturers of electronic and electrical equipment sold in Europe to demonstrate that their products contain only minimal levels of the following hazardous substances: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyl and polybrominated diphenyl ether.
 
   ELV Directive
 
     End-of-Life Vehicles (ELV) is a European Union (EU) directive that requires manufacturers of automotive products sold in Europe to demonstrate that their products contain only minimal levels of mercury, cadmium and lead. Lead can still be used as an alloying additive in copper, steel and aluminum.
 
   UL
 
     Underwriters Laboratories (UL) is a non-profit organization that tests components, systems, and materials according to its published standards for safety. Products that receive UL approval bear a UL Mark.
 
   CSA
 
     Products that bear a CSA Mark have been tested by the Canadian Standards Association (CSA) and meet applicable standards for safety and/or performance. These standards are written and administered by organizations such as the American National Standards Institute (ANSI), Underwriters Laboratories (UL), and CSA International.

CSA Marks may appear alone or with indicators. CSA Marks that appear alone are used with products certified primarily for the Canadian market, to the applicable Canadian standards. CSA Marks that appear with the indicators “C” and “US” or “NRTL/C” are used with products certified for both the U.S. and Canadian markets, to the applicable U.S. and Canadian standards.
 
   IEC
 
     The International Electro technical Commission (IEC) is a global, non-profit organization that develops and maintains voluntary quality, safety, and performance standards for electrical materials, products, and systems The IEC also publishes standards for the electronics and telecommunications industries. The IEC’s membership consists of the electro technical standards organizations from each of its 51 member nations. The American National Standards Institute (ANSI) represents the United States.
 
   WEEE Compliant
 
     Waste Electrical and Electronics Equipment (WEEE) is a European Union (EU) directive designed to encourage the reuse, recycling and recovery of electrical and electronic equipment. WEEE is also designed to improve the environmental impact and performance of this equipment. The WEEE directive establishes requirements and criteria for the collection, treatment, recycling and recovery of electrical and electronic equipment. It also makes producers responsible for financing these activities. Retailers and distributors must provide a way for consumers to return used or obsolete equipment without charge.
 
   Other
 
     Other unlisted standards.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Features       
   Your choices are...
 
      
 
   Heat Sink
 
     The device uses a heat sink to dissipate heat.
 
   Non-Inductive
 
     The device is non-inductive.
 
   Air Cooled
 
     The device is air-cooled.
 
   Water Cooled
 
     The device is water-cooled.
 
   Non-Flame Coating
 
     The device has a coating which provides protection against flames.
 
   Fireproof Case
 
     The device is fireproof.
 
   Electrically Isolated Case
 
     The device is covered by an electrically-isolated case.
 
   ESD Protection
 
     The device is protected against electrostatic discharge (ESD).
 
   NEMA Enclosure
 
     The device is encased in a NEMA enclosure. NEMA enclosures are rated by the National Electrical Manufacturers Association (NEMA) and designed for hazardous or non-hazardous locations and indoor or outdoor use.
 
   Military Standards
 
     Devices comply with U.S. military standards.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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