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Configuration:
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Your choices are...
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Resistor Network
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Resistor chip arrays contain several resistors housed in a single package.
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Resistor, Capacitor (RC) Network
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Resister, capacitor (RC) networks are integrated circuits (ICs) that contain resistor-capacitor arrays in a single chip.
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Resistor, Capacitor, Diode (RCD) Network
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Resistor, capacitor, diode (RCD) networks are integrated circuits (ICs) that contain resistor-capacitor-diode arrays in a single chip.
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Other
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Other unlisted, specialized, or proprietary configurations.
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Search Logic:
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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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Technology / Construction
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Your choices are...
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Thick Film
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Thick-film resistors are made by stenciling a resistive metallic paste or ink onto a base in a process similar to silk screening. Usually, this resistive material is considered to be proprietary.
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Thin Film
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Thin-film resistors are formed by vapor-deposition of a thin layer of resistive material onto a base. They are trimmed to a specific value by lasering or sandblasting.
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Wirewound Resistor
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Wirewound resistors are made by winding thin wire onto a ceramic rod. Highly-accurate devices are used in multimeters, oscilloscopes and other measuring equipment. Wirewound resistors that can pass large currents without overheating are used in power supplies and other high-current circuits.
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Other
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Other unlisted, specialized, or proprietary configurations.
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Metal Film
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Metal-film resistors are produced by depositing a resistive element on a high-grade, ceramic rod. The metal film’s resistive element may be carbon, nickel chromium; or a mixture of metal and glass, or metal and metal oxide. The precise resistance is achieved by removing part of the metal film in a spiral pattern around the rod. Typically, the tolerance is within ±2% or ±1% of the nominal value. When a tolerance of +/-1% is achieved, a 100-ohm, 1% resistor falls in the range of 99 to 101 ohms.
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Metal Foil
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Resistors are made of metal foil.
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Metal Oxide
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Metal-oxide resistors are similar to metal-film resistors. Although there are some differences between these resistor types, none affect their use in simple circuits.
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Carbon Composition
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Carbon-composition resistors consist of powdered carbon, an insulating material, and a resin binder. Their resistance value is determined by the ratio of powdered carbon to insulating material. Carbon-composition resistors usually have a precision of no greater than +/-5%. This means that a 100-ohm resistor can range from 95 to 105 ohms in actual value.
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Carbon Film
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Carbon-film resistors are relatively inexpensive and readily available. They have resistance values within ±10% or ±5% of their marked or nominal value.
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Search Logic:
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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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Mounting / Packaging
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Your choices are...
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Surface Mount (SMT / SMD)
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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.
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Bolt-on (Chassis)
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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.
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Panel Mount
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Panel-mounted devices have a threaded bushing which surrounds the shaft.
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Through Hole
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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.
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Other
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Other unlisted, specialized, or proprietary configurations.
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Search Logic:
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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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Packing Method
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Your choices are...
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Tape Reel
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Components are packed in tape reel assemblies that include a carrier tape with embossed cavities for storing individual components. A cover tape seals the carrier tape in place. This composite tape is then wound on a reel that is placed in a corrugated shipping box for transport and delivery. Customers unpack the reels and load them into industry-standard, pick-and-place board assembly equipment. Tape and reel assemblies provide component isolation and are designed for surface mount packages such as quad flat package (QFP) and thin quad flat package (TQFP).
Typically, carrier tape is made from a polystyrene (PS) or PS-laminate film with a uniform film thickness between 0.2 mm to 0.4 mm. Carrier tape design is defined largely by component length, width, and thickness.
Cover tape is made from a polyethylene teraphthalate (PET) film or film laminate with an adhesive applied to the underside of the film. This adhesive is usually heat and pressure sensitive to ensure a positive, consistent seal between the carrier tape and the cover tape.
The reels that contain the composite tape are typically made of polystyrene and have one, two, or three parts. Reel dimensions meet EIA-481-1, EIA-481-2, and EIA-481-3 standards.
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Rail
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This is a method of packaging IC chips for production environments.
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Bulk Pack
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Components are distributed as individual parts.
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Tray
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Components are packed in trays that are made of carbon-powder or fiber materials and molded into rectangular outlines that contain matrices of uniformly spaced pockets. These containers protect components during shipping and provide proper component location and orientation for use with industry-standard, pick-and-place board assembly equipment. Trays are designed for components for that have leads on four sides and that require component lead isolation during shipping, handling, or processing. For example, quad flat package (QFP) and thin quad flat package (TQFP) components are often shipped in trays.
To facilitate shipping and handling, trays are stacked and bound together in standard configurations. To provide rigidity, an empty cover tray is added to the top of the load. Typical stacking configurations consist of five full trays and one cover tray, and ten full trays and one cover tray. Customer requirements determine whether trays are shipped in single or multiple stacks.
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Shipping Tube / Stick Magazine
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Components are packed in shipping tubes or stick magazines that are made of rigid polyvinylchloride (PVC) and extruded in industry-standard sizes. These containers protect components during shipping and provide proper component location and orientation for use with industry-standard, pick-and-place board assembly equipment.
To facilitate shipping and handling, shipping tubes and stick magazines are usually loaded into intermediate containers such as boxes or bags to form standard quantities. Intermediate-level packing quantities for shipping tubes and stick magazines often vary by pin count and package type.
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Other
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Other unlisted packing methods.
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Search Logic:
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Products with the selected attribute will be returned as matches. Leaving or selecting "No Preference" will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Resistance Range
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The device's resistance range.
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Search Logic:
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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.
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Tolerance
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Resistance tolerance is usually expressed a percentage.
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Search Logic:
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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.
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Temperature Coefficient (TCR)
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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.
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Search Logic:
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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.
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Number of Resistors
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The total number of resistors in the package.
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Search Logic:
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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.
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Capacitance
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The device's capacitance range.
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Search Logic:
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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.
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Capacitance Tolerance
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Capacitance tolerance is usually expressed as a percentage.
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Search Logic:
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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.
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Power Rating
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Power rating is the maximum real power in watts (W) that the resistor supports.
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Search Logic:
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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.
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Operating Temperature
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This is the full-required range of ambient operating temperature.
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Search Logic:
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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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Standard and Compliances
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Your choices are...
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RoHS Compliant
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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. RoHS will become effective on July 1, 2006.
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ELV Directive
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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.
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UL
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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.
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CSA
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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.
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IEC
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The International Electrotechnical 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 electrotechnical standards organizations from each of its 51 member nations. The American National Standards Institute (ANSI) represents the United States.
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WEEE Compliant
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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.
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Other
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Other unlisted standards.
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Search Logic:
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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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Features
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Your choices are...
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Heat Sink
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The resistor uses a heat sink to dissipate heat.
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Non-Inductive
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The resistor is non-inductive.
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Air Cooled
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The resistor is air-cooled.
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Water Cooled
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The resistor is water-cooled.
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Non-Flame Coating
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The resistor has a coating which provides protection against flames.
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Fireproof Case
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The resistor is fireproof.
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Electrically Isolated Case
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The resistor is covered by an electrically-isolated case.
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ESD Protection
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The resistor is protected against electrostatic discharge (ESD).
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NEMA Enclosure
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The resistor 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.
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Military Standards
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Resistors comply with U.S. military standards.
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Search Logic:
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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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