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Protection diode for OPEN Alliance 100Base-T1 and 1000Base-T1

Vishay Ethernet ESD diodes

VETH100A1DD1 is a bidirectional ESD protection diode for automotive Ethernet, compliant with OPEN Alliance 100Base-T1 and 1000Base-T1. Made by Vishay, it comes in a wettable flank DFN1006-2B package  measuring 1 x 0.6 x 0.45mm. Working range is ±24V, and clamping is typically at 31V for 1A, “a result of its snap-back technology with a trigger voltage >100V”, said the company. ...

DIN rail IEC surge protection for AC or DC power

Bourns 1430 1440 dc surge arrest DIN rail

Bourns is offering IEC-grade surge protection for ac or dc power rails with four DIN rail mount device series. 1270 series AC surge protection to IEC/EN 61643-11 Class I + Class II / T1+T2 1280 series the same, plus a thermal disconnector “that eliminates the need for up-stream over-current protection”, said Bourns. 1430 series DC surge protection to IEC/EN 61643-31 ...

Solvent-less, dual-cure conformal coatings from Dow

A needle-deposited rectangular wall of Dow CC-8036 acts as a dam for the sprayed CC-8033 infill. UV accompanying the spray head cures it all

Dow has introduced a range of solvent-less silicone conformal coatings to protect electronics components. The CC-8000 series, as it will be known, are dual-cure silicones where ultra-violet exposure gives a fast initial cure to ‘grab’ any loose parts, while exposure to moisture gradually cures areas from which the UV was obscured. “The ability to cure in seconds with broad spectrum UV ...

23V 7A USB Type-C source protection switch

AnO AOZ1377DI rail switch cct 715

Alpha and Omega Semiconductor has released a 7A 23V USB Type-C protection and reverse-blocking switch IC. Dubbed AOZ1377DI, is can be used in both Sink and Source applications and it “offers features that significantly reduce voltage drop and power loss compared to back-to-back p-channel devices”, promises the company. Instead it uses a pair of internal drain-to-drain n-channel mosfets, whose gates ...

Low-capacitance snap-back ESD protection diodes are automotive qualified

Nexperia PESD18VF1BLS-Q ESD diode characteristic

Nexperia is aiming at protecting high-speed automotive data lines with ESD protection diodes whose capacitance is as low as 0.28pF. With stand-off voltages in the 18 – 32V range and a snap-back characteristic, the AEC-Q101 (automotive) qualified parts are intended to be used close to connectors on boards. The base part number is PESDxxVF1Byy-Q, with xx representing the nominal stand ...

More on: Navitas 4th generation protected GaN power with integrated drivers

Navitas GaNsafe block

Navitas recently announced its fourth generation of GaN power transistors with monolithically-integrated gate drivers. Branded GaNsafe, the company has increased the protection integrated alongside the driver and has moved to 10 x 10mm TOLL packaging, with a custom internal leadframe (diagram below). The initial products are rated at 650V (800V transients), cover Rds(on) from 35 to 98mΩ (table below), and ...

Gas discharge tubes protect for IEC 62368-1

bourns-gdt28h-gas-discharge-tube`

Bourns has introduced a series of gas discharge tubes for protecting equipment against high-voltage surges. The bidirectional GDT28H series has devices with breakdown voltages from 1 to 3.3kVdc, and all are 8mm in diameter and 6mm long, with out without axial leads. Picking the nominally 2kV GDT28H-200 as an example, breakdown is between 1,600 and 2,400V (100V/s). Arc voltage is ...

Corrosion protection for electrical cabinets

Cortec ecoemitter corrosion protection

Cortec’s EcoEmitter is a stick-on capsule designed to protect un-ventilated enclosed electronic and optical equipment from corrosion. Each pod is intended to protect 0.25m3 (8.8feet3). “Vapour phase corrosion inhibitors emit and saturate the enclosure via diffusion, filling all void spaces and recessed areas with protective vapour molecules,” according to the company. “These molecules are attracted to and adsorb onto metallic ...

Multi-layer varistors are One-Pair Ethernet Alliance qualified for automotive use

Kyocera avx Low Capacitance MLVs

Kyocera AVX has announced small multilayer varistors (MLVs) that meet IEEE 100BASE-T1 and 1000BASE-T1 requirements. Available in 0402 and 0603 (0.5 ±0.1mm and 0.80 ±0.15mm respectively), they are rated for working voltages between 18 and 70Vdc, capacitance from 1.5 to 4.7pF, transients from 0.02 to 0.04J, peaks of 1 to 3A and operation across -55°C to +150°C. Actual working voltage ...

Low-capacitance ESD protection for automotive data

Nexperia-bidirectional-snapback-300x200.jpg

Nexperia is aiming at protecting USB 3.2, HDMI 2.0 and LVDS data lines in vehicles with family of ESD (electrostatic discharge) protection diodes. “Additionally, this portfolio also aims to address the upcoming high-speed video-links as well as the Open Alliance multi-Gbit Ethernet applications”, according to the company. All variants come in 1 x 0.6 x 0.5mm leadless packages to improve ...