Raychem's PolyZen is a polymer-enhanced, precision Zener diode micro-assembly. This device is designed to meet the growing need for over-current and over-voltage protection on portable equipment that uses barrel jacks for DC power input.
PolyZen can help protect sensitive electronics from damage caused by inductive voltage spikes, voltage transients, incorrect power supplies and reverse bias. The component incorporates a stable Zener diode for precise voltage clamping and a resistively non-linear, polymer positive temperature coefficient (PPTC) layer that responds to either diode heating or over-current events by transitioning from a low to high resistance state. Devices are capable of withstanding very high power fault conditions.
PolyZen devices are resettable, so they are effective against multiple fault events. In the event of sustained high power conditions, the PPTC element of the device trips to limit current and generate voltage drop. This functionality helps protect both the Zener and the secondary protection elements, effectively increasing the diode's power handling capacity.
These RoHS-compliant devices offer power handling up to 100 W and dissipate only 0,7 W.
General-purpose evaluation board Altron Arrow
DSP, Micros & Memory
Based on the 32-bit Arm Cortex-M7 S32K3 MCU in a 172 HDQFP package, the S32K3X4EVB-T172 offers dual cores configured in lockstep mode, ASIL D safety hardware, and HSE security engine.
Read more...Zero drift current shunt monitors Altron Arrow
Power Electronics / Power Management
The NCS21671 and NCV21671 from onsemi are a series of voltage output current sense amplifiers offered in gains of 25, 50, 100, and 200 V/V.
Read more...Wi-Fi 6/BLE module enables rapid development Altron Arrow
Telecoms, Datacoms, Wireless, IoT
Telit Cinterion has announced the WE310K6, a fully integrated, low-power module featuring dual-band, dual-stream Wi-Fi 6, and dual-mode Bluetooth/BLE.
Read more...Analysis of switch-mode power supply: inductor violations Altron Arrow
Editor's Choice Power Electronics / Power Management
Common switch-mode power supply (SMPS) design errors are discussed, and their appropriate rectification is specified, with details on complications that arise with the power stage design of DC-DC switching regulators.
Read more...Microsoft Windows IoT on ARM Altron Arrow
Computer/Embedded Technology
This expansion means that the Windows IoT ecosystem can now harness the power of ARM processors, known for their energy efficiency and versatility.
Read more...Microchip introduces ECC608 TrustMANAGER Altron Arrow
Circuit & System Protection
To increase security on IoT products and facilitate easier setup and management, Microchip Technology has added the ECC608 TrustMANAGER with Kudelski IoT keySTREAM, Software as a Service (SaaS) to its Trust Platform portfolio of devices, services and tools.
Read more...SolidRun unveils new SoM Altron Arrow
AI & ML
SolidRun and Hailo has unveiled a game-changer for engineers and AI product developers with the launch of their market-ready SoM, which packs the cutting-edge capabilities of the Hailo-15H SoC.
printer friendly version