Search results for "resistors"

Stackpole has increased the power rating of its popular RPC Series. The RPC-UP from Stackpole offers 0805 and 1206 size chip resistors with excellent pulse withstanding and high power ratings. RPC0805-UP is rated at 0.5W and 400V working voltage and the RPC1206-UP is rated at 0.75W and 500V.

When you start using your soldering station, you will probably only use the soldering tip that comes with your iron, which will be perfectly suitable for general purpose use.However, HAKKO has designed a range of soldering tips that make quick and easy work of different soldering applications, which not only improve the soldering environment but also reduce costs.

Stackpole is now stocking 10M, 100M, 500M, 1G, and 10G ohm values of its HVAM axial leaded precision resistors. These resistors are designed for high voltage handling and high resistance values with power ratings from two to ten watts.

The LM1117 from Texas Instruments is a low dropout voltage regulator with a dropout of 1.2 V at 800 mA of load current. The LM1117 is available in an adjustable version, which can set the output voltage from 1.25 to 13.8V with only two external resistors. In addition, it is available in five fixed voltages, 1.8V, 2.5V, 3.3V, and 5V.

High energy density switch-mode power supplies (SMPSs) can accelerate battery charging, reduce the size of solar micro-inverters, and meet the demand of server farm power requirements, all without generating excessive heat. However, engineers are now reaching the performance limits of the silicon MOSFETs and IGBTs that form the primary switching elements of conventional SMPSs. Instead, transistors constructed from enhancement-mode gallium nitride...

Isabellenhütte has developed a new range of precision resistors in standard sizes with resistances ranging from 1-6MΩ for applications which require small and low ohmic shunts. In terms of their construction, the components are also less complex than the currentISA-PLAN resistance families. And yet, they offer the same performance quality: very good long term stability, a low temperature coefficient, and low thermoelectric voltages.

REO UK has brought high power brake resistors into the 21st century with its new REOHM series 155 braking resistors for industrial control cabinets. The product can deliver up to 3,500W of continuous power to drives with medium- and high-power frequency converters, with isolation voltages to 4.4kV, in a compact design that helps the product overcome the common problems with electrical braking resistors.

A key element of the propulsion system for low speed urban transportation to high speed intercity trains is the traction converter that transforms the power from the power source, whether a catenary or diesel engine, to drive the electric motors. By Michel Ghilardi, LEM Research & Development Senior Engineer

Power Integrations hasannouncedCAPZero-3, the latest generation of the energy-saving X-capacitor discharge ICs. Two-terminal CAPZero-3 ICs enable designers to easily meet IEC60335 safety approvals for major appliances, and cover allcapacitor values from 100-6µF. TheIEC60335 is the discharge safety standard for all appliances. To protect the user from an electrical hazard, it requires the voltage across the input X capacitor to discharge to ...

Modern power supplies are characterised by claims of ever higher efficiencies, but can designers rely on datasheet specifications, asks Bernhard Erdl, PULS Power