Products/Services for 12 Volt DC Variable Resistors
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Varistors - (232 companies)Varistors are nonlinear two-electrode semiconductor voltage-dependant resistors. The current in a varistor is proportional to applied voltage raised to a power. These devices are normally made of zinc oxide. Upon application of a high...Mounting StyleLead Type -
Resistors - (967 companies)...or they may be variable or adjustable within a certain range. As passive components, resistors can only reduce voltage or current signals and cannot increase them. Understanding Resistors. Resistance. The resistance of an element measures its... -
DC Power Supplies - (1238 companies)...are built with diodes and resistors. Filter - In order to convert the pulsating DC signal into a non-pulsating DC signal, a filter is needed. Normally a simple capacitor filter suffices. The output of the filter is DC voltage, which usually has some ripple... -
DC Motor Starters - (192 companies)...the interaction of the variables above on a DC motor. Adding Resistance. The problem of large starting current can be solved by adding a source of external resistance that lowers the initial current. With a source of resistance, the formula... -
Potentiometers, Rheostats, and Trimmers - (439 companies)...the term "potentiometer" itself is used to describe two different devices. While both form or use a voltage divider, their functions and uses are very different. Potentiometers as described in this article are variable resistors used to control small... -
Motor Starters and Contactors - (712 companies)Description. Motor starters and contactors are motor-starting devices. They combine a contactor with overload protection and are designed for starting AC or DC motors. Motor Ratings. Motor starter ratings include continuous current, thermal current...
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Motor Controllers - (793 companies)...efficiency. There are two basic types of controllers: electronic and electromechanical. Electronic units are very sophisticated and include features such as soft starting and variable frequency drives. Electronic units can be programmed to respond...
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Power Supplies - (3073 companies)The rectifier can be a half-wave or full-wave rectifier. A pulsating DC signal is a signal (voltage or current) that does not change polarity, but its magnitude is a function of time. Typical rectifiers are built with diodes and resistors. Filter - In order...
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Motor Speed Controllers - (211 companies)Choices for direct current (DC) motors include. Brushed motors. Brushless motors. Servomotors. Drive-type categories for stepper motors include. Unipolar stepper. Bipolar stepper. Permanent magnet stepper. variable reluctance stepper. Hybrid stepper...
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DC Motors - (1244 companies)DC motors are most commonly used in variable speed and torque applications. They include brushless and gear motors, as well as servomotors. How to Select DC Motors. Image Credit: Dart Controls, Inc.; Galil Motion Control; Stock Drive Products...
Product News
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ODG (Origin Data Global)
What is a variable resistor? A Comprehensive Guide Electronics requires precise voltage and current control. How do hobbyists and engineers achieve such control on real devices, like medical equipment, radios and remote controls?. Most often, the answer lies with a tiny but powerful component: The variable resistance. The article below will take you from the basics to more advanced applications of variable resistors. It uses simple and engaging language to guide both beginners as well as seasoned readers through all you need to learn about them... (read more)Browse Wirewound Resistors Datasheets for ODG (Origin Data Global) -
ASAP Semiconductor LLC
Resistors resistors are also known as surface-mount devices or SMD resistors and can be designed in square or rectangular chip bundles. A chip resistor can have a definite value of resistance or a flexible, more variable resistance within a specific range. It is important to note that it is a passive component that can only decrease current or voltage signals. To better understand why such devices are garnering popularity, we must cover how they work. As they form the main components of many advanced electronics... (read more)Browse Resistors Datasheets for ASAP Semiconductor LLC -
Richardson RFPD
Ultra-Broadband SMT Resistors (DC-40 GHz) Ultra Broadband Resistors (UBR) from KYOCERA AVX. The KYOCERA AVX UBR Series of surface mount ultra broadband resistors was designed utilizing their proprietary Glass Sandwich Flexiterm (R) Technology, (GSFT). The Flexiterm (R) is a surface mountable automotive qualified termination that adds an extra margin against damage due to flexture during installation. The UBR series has been designed with high quality selected materials that yield excellent performance. This product is ideal for use... (read more)Browse Resistors Datasheets for Richardson RFPD -
Isabellenhutte USA
BRAKING RESISTORS / PRECHARGE RESISTORS BRAKING RESISTORS / PRECHARGE RESISTORS. Our UL-listed components are designed to support high loads (up to 3100 Watts) and high pulse rates (up to 31kW for 5 sec). Their compact size saves you space and make them easy to mount. Rugged Extruded Aluminum Housing. Flying leads and tab terminals available. IP 54 protection type. Customizable. PRECISION & POWER RESISTORS. When you can 't afford to take chances --take charge. When you are developing a design with no tolerance for failure --whether... (read more)Browse Shunt Resistors Datasheets for Isabellenhutte USA -
KOA Speer Electronics, Inc.
High Voltage Thick Film Resistors KOA Speer Electronics ' high voltage resistors for automotive and industrial applications have a maximum working voltage of up to 3,000V dc (HV73) and 800V (HV73V) and maximum overload voltage of up to 4,000V (HV73) and 1,200V (HV73V). The HV73V includes sizes 0603 to 1206 and the HV73 extends the range to 2512. The HV73V offers heat shock resistance, and both are available in anti-sulfur versions. (read more)Browse Chip Resistors Datasheets for KOA Speer Electronics, Inc. -
ODG (Origin Data Global)
How to Select the Right Shunt Resistor inspect the resistor and its connections for signs of wear or damage. Early detection of issues can prevent costly failures and maintain measurement accuracy. By following these installation guidelines, you can maximize the performance and lifespan of your shunt resistor while ensuring precise current measurement. Practical Applications of Shunt Resistors. Measuring Current in DC Circuits. Shunt resistors play a vital role in measuring current in DC circuits. They work by creating a small... (read more)Browse Power Resistors Datasheets for ODG (Origin Data Global) -
Isabellenhutte USA
Resistors Drive Appliance Energy Efficiency HYPER-EFFICIENT HOUSEHOLD APPLIANCES NEED TO SWITCH MOTOR TECHNOLOGY TO ACHIEVE BETTER ENERGY USE. Isabellenh utte supports the effort with "smart components " and a streamlined one-product solution to keep costs manageable. CHALLENGE. Producers of large household electrical appliances (e.g. washing machines, refrigerators and freezers) identified the changing over of drive motors from AC to DC offers great energy saving potential (up to 30%). To keep costs in-line, manufacturers needed to find... (read more)Browse Power Resistors Datasheets for Isabellenhutte USA -
Shenzhen Weidy Industrial Development Co., Ltd.
AC Filter Capacitors for Variable Frequency Drives 300 -600 Vdc. Capacitance Range: 33 -60 mF. Capacitance Tolerance: +-5%, +-10%. Withstand Voltage: 5UN / 3000 Vac. Insulation Resistance: >3000 s. Dissipation Factor: <20 x 10-4. Standard Compliance: IEC 61071 (GB/T 17702). Typical Applications. Variable Frequency Drives (VFDs). Motor Drive Systems. UPS Equipment. Solar Photovoltaic Inverters. DC/AC Power Conversion Systems. LCL Filter Circuits. Industrial Power Electronics. The WAM Series provides a reliable AC filtering solution... (read more)Browse Film Capacitors Datasheets for Shenzhen Weidy Industrial Development Co., Ltd. -
New Yorker Electronics Co., Inc.
Wirewound Safety Resistors With WSZ Lead Form Vishay expands its AC03-CS Series of axial wirewound safety resistors with a new WSZ lead form, allowing for surface-mount compatibility and faster, more cost-effective assembly. Designed for inrush current limiting, pre-charge, discharge, and snubber applications, these resistors provide safe and silent fusing under high DC overload or accidental AC mains exposure in automotive, industrial, and consumer systems. With AEC-Q200 qualification and high surge capability up to 4 kV, the AC03-CS... (read more) -
Isabellenhutte USA
Isabellenhütte's new MBH/MBV high-power resistors When a hoist lowers a load, your motor becomes a generator. That energy feeds back into the VFD, and if it 's not managed, DC bus voltage spikes --> drive trips. The fix? A properly sized braking resistor. Isabellenh utte USA's new MBH/MBV high-power resistors are built for this: * High pulse load capability. * Compact, rugged design. * Reliable under dynamic braking conditions. Learn more about our CSA/UL-recognized line of braking resistors. Follow us on: YouTube. LinkedIn. our blog. Watch... (read more)Browse Dynamic Braking Resistors (DBRs) Datasheets for Isabellenhutte USA
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Optical binary switch and amplitude modulator micromirror arrays
To achieve a time- varying drive signal with a sufficient magnitude (at least 70% of the maximum operating dc voltage) to evaluate the reliabil- ity of the micromirrors, a variac and power transformer with dual, 12 - volt , 24-volt and 48-volt … wave rectifier load consisted of a set of three, series-connected, 1-watt resistors (16 kfl, 39…
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Less is More: Measure of Chloride Removal Rate from Wrought Iron Artifacts During Electrolysis
Current to each cell was supplied by an encapsu- lated, non-regulated, 12 volt , 0·5A DC rectifier (Figure 1). .... The rectifier output was reduced by con- necting a 115/120 volt AC variable resistor between it and current from the outlet.
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Design and Testing of a Device To Introduce a Lag-time Treatment Between the Inflow and Outflow Hydrographs of a Sedimentation Basin
The ultrasonic sensor required 12 V DC and output a variable 4-20 mA signal. .... The current was passed through a resistor that was sized to produce a voltage drop ranging from 0-5 volts .
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Autonomous Unmanned Ground Robotic Vehicle Competition: an intelligent control challenge
The steering system consisted of a rack and pinion mount, linked to the cart Pitman arm and driven by a 12volt dc motor. .... The speed system con- sists of six car batteries, linked in series with motor current control through the variation of a dropping re- sistor .
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High Throughput Optical Sensor Arrays for Drug Screening
In the laboratory, spin coating was accomplished using a small 3.0 Volt DC motor. .... A variable resistor was used in series with the motor armature to control shaft speed. .... A rough diagram of the spinning setup is shown in Figure 12 .
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Characterization of energy harvesting potential of Terfenol-D and Galfenol
Power is provided to the bias coil via two 12 volt car batteries in series with a rheostat ( variable resistor ). .... This setup was used in lieu of a DC power amplifier to ensure that no AC noise…
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DEVELOPMENT OF CONTINUOUS SOLVENT EXTRACTION PROCESSES FOR COAL DERIVED CARBON PRODUCTS
Volt Meter. .... Variable Resistor . .... Power Supply 12 V DC .
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Third-order intermodulation in a micromechanical thermal mixer
Finally, high dc biases, sometimes on the order of 100’s of volts [11], render the method of actuation incompatible with low supply voltage processes. .... Thermal–mechanical transduction relies on a heat source such as a laser [ 12 ] or a resistor [3] to produce localized thermal variations on the order of 1 K, which in turn generate detectable mechanical displacement in a thin-film resonator.
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Use of solar photovoltaic powered fans to reduce peak temperatures in outdoor cabinets
Each card contained five 4-watt resistors and was tied into the 115- volt ac service through a switch. .... The total heat within the cabinet, Q,, was thus variable from 0 to 1000 watts in increments .... A nominal 12 -volt (&volt to 14-volt range), 6-watt dc Rotron Muffin fan was mounted above the top of each of the two mounting frames, midway between the two sides.
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Robot Building for Beginners
…Chapter 6: Robot Line-Following ..........................................................................63 Chapter 7: Nine- Volt Batteries ..............................................................................79 Chapter … 93 Chapter 9: Resistors ...........................................................................................101 Chapter 10 … on!........................................................................................127 Chapter 12 : Solderless Prototyping....................................................................143 … 161 Chapter 14: Variable Resistors ...........................................................................173 Chapter .... Chapter 16: Transistor Switches ........................................................................207 Chapter 17: DC Motors........................................................................................223 Chapter 18: Adding Gearhead…
