Signal Transformer announces the latest product innovation for Power Over Ethernet (PoE) applications, the SPoE Surface Mount Transformer Series. SPoE is a new product for equipment or devices connecting to an Ethernet or enterprise network and relies on ethernet cables to receive power and digital data signals for operation and processing, respectively. Today’s IoT (Internet of […]
Magnetics
Miniature SMT ferrites optimized for data line filtering
Würth Elektronik extends its WE-CBA SMT EMI Suppression Ferrite Bead product families. They now include 0402, 0603, 0805, 1206, 1806 and 1812 packages. The SMDs are AEC-Q200 qualified as part of Würth Elektronik’s automotive electronics portfolio. WE-CBA features high-quality Ni-Sn electrodes, a very high current carrying capacity up to 6 A, and operating temperatures from […]
Hall-effect current sensors first with zero drift
Texas Instruments introduced the industry’s first zero-drift Hall-effect current sensors. The TMCS1100 and TMCS1101 enable the lowest drift and highest accuracy over time and temperature while providing reliable 3-kVrms isolation, which is especially important for AC or DC high-voltage systems such as industrial motor drives, solar inverters, energy-storage equipment and power supplies. Ongoing demand for higher […]
World’s smallest ferrite chip beads target automotive power supply application
Murata Manufacturing Co., Ltd. has introduced the BLM18SP_SH1 series of the world’s smallest chip ferrite beads (for noise suppression) for use in automotive power supply applications. The company has started shipping samples, and volume production is scheduled to begin in June 2020. In recent years, in keeping with the progress of automobile electrification, cars have […]
Magnetic design tool handles ferrite calculations
TDK Corporation announced its completely revised Magnetic Design Tool with enhanced functionality. The updated tool now enables the fast and easy calculation and graphical representation of application-related parameters for all EPCOS ferrite materials, including new materials for high-frequency switch-mode power supplies, and core shapes. The Magnetic Design Tool is available as a browser-based application and […]
EMI chokes offer greater than 40 dB common mode attenuation
Coilcraft’s new Cx Family of surface-mount common mode chokes includes 16 sizes/configurations for a broad range of power line circuits. They suppress high-frequency common mode noise up to 100 MHz and offer greater than 40 dB common mode attenuation, making them ideal for use in consumer electronics and industrial applications. All Cx Family EMI chokes feature […]
Traps to avoid when spec’ing a custom transformer
John Gallagher from Pulse Electronics recently spoke with us about some of the things design engineers and circuit designers need to know when they’re working with a company that makes transformers and inductors. He says a lot of circuit designers look at transformers as ideal transformers –there’s just a certain number of turns in the […]
What you need to know about buzzers – reviewing the basic types and technologies
Bruce Rose, Principal Applications Engineer, CUI Inc A buzzer can provide a cost-effective yet intuitive aspect to the user interface of a wide variety of products, such as a home appliance, security panel, door-entry system or computer peripheral. Usually, the choice is between either a magnetic or piezoelectric type. It should be an easy decision, […]
Power supply designers take a hard look at soft magnetics
The promise of high efficiency and small size brought by super-fast switching power supplies could be delayed by a lack of magnetic materials that are up to the task. Leland Teschler | Executive Editor Eyeball the schedule for APEC, considered the premier technical conference for power electronics, and you’ll notice a number of sessions devoted […]
Double choke optimized for SMT assembly
With its WE-TDC HV, Würth Elektronik eiSos presents a further double choke optimized for SMT assembly. The magnetically shielded 1:1 transformers with an isolation voltage of 2,000 V stands out from similar components through lower losses and a low level of stray inductance. The WE-TDC HV product family encompasses nine different models – five in […]
