NK Technologies released the AGT-FD Series, new ground fault sensors that detect faults to earth from 0 mA to 100 mA and produce an output signal of 0–10 VDC in proportion to the amount of current passing to ground. The output is equal to the RMS value of the earth leakage. The AGT’s sensing window is […]
Power Components
Now that’s a wide bandgap: Could gallium oxide be the next power transistor technology?
Researchers at the University of Buffalo have come up with a MOSFET made from the unusual material gallium oxide. The point of the work is that gallium oxide has a bandgap of about 4.8 eV, better than that of SiC’s 3.4 eV or GaN at 3.3 eV or silicon at 1.1 eV. Bandgap measures the […]
Vitreous enamel-coated tubular wirewound resistors handle load-dump apps
Stackpole’s EWT series of vitreous enamel coated tubular wirewounds is a good choice for high power load dump applications. It is available in power ratings from 25 to 300 W. The vitreous enamel coating withstands temperatures of up to 500°C and allows operating temperatures up to 350°C. The EWT’s robust wire element withstands thousands of […]
Surface-mount power inductors feature low EMI, noise, and dc resistance
Signal Transformer, a Bel group company, announce their new SCIHP0412, SCIHP0420 and SCIHP0420TB Series of Surface Mount Inductors (SMD) for notebooks, tablets and multi-purpose applications. These new series of SMD Inductors are ideal for tablets, notebook/desktop, server applications, battery powered devices, low-profile and high current power supplies and DC/DC converters. Signal Transformer’s new series of SMD […]
Wet tantalum supercapacitors now rated for 175°C max operating temp
AVX Corp. has increased the maximum operating temperature for its TWD High-Temp Max-Cap (HTMC) Series axial leaded, hermetically sealed wet tantalum capacitors from 125°C to 175°C. Based on a well-established wet tantalum design, the newly improved TWD HTMC Series capacitors provide the highest DC capacitance and the highest operating temperature of any T4-case capacitor available […]
Compact, surface-mount IR LED emitter generates uniform, parallel light for high-precision apps
TT Electronics has introduced a compact, infrared LED emitter with the industry’s largest spot diameter of 7mm for super-reliable optical sensing and position encoder applications. With up to 10mW total radiated power at the maximum drive current of 100mA, and 2.25° angle of half intensity, the OP207CL couples optical flux extremely efficiently onto the receiving photo-sensor […]
Surface-mount inductors designed for LED lighting applications
Signal Transformer, a Bel group company and global manufacturer of custom and standard transformers, chokes, inductors, transformers and SMD inductors, announce their new SCIH1040HC and expanded SCIHP1367, SCIHP1350, SCIHP1338, SCIHP0718 and SCIHP0724 Series of Surface Mount Inductors (SMD) for Lighting Applications. These new series of SMD Inductors for Lighting complement existing Signal Series SMD SCRH5D28, […]
Optocouplers, Part 1: Principles and usefulness
The optocoupler — also called an optoisolator — is among the most useful, versatile, problem-solving components available to the design engineer. This small non-monolithic device does one thing and does it well, with minimal complications in most cases and no software. This FAQ will look at the operation principles, key parameters, and applications of this […]
Connected vehicles will make their connections through gallium nitride
The high performance of many autonomous automotive features will likely depend on the use of super-fast GaN semiconductors. Alex Lidow, Efficient Power Conversion (EPC) WITH the rise of autonomous cars and electric propulsion as driving forces in automotive applications, a huge new market for power devices based on gallium nitride grown on a silicon substrate […]
Digital isolator IC works at 200 Mbps with low power consumption
To better protect industrial systems from the dangers of high-voltage signals, equipment designers can now turn to the new robust and reliable MAX22445 5kVRMS four-channel reinforced digital isolator from Maxim Integrated Products, Inc. Delivering up to 2x greater throughput at 4x lower consumption versus competing solutions, the MAX22445 provides reliable communication across the isolation barrier to ensure safe operation of compact industrial, […]