protection

Nexperia has created ESD protection diodes for 48V vehicle communications networks. “Until now, automotive equipment manufacturers lacked suitable ESD protection solutions specifically designed for 48V data lines,” claimed Nexperia head of protection devices Alexander Benedix. “As a result, they often had to rely on workarounds – either including an additional 12 V power rail or connecting several lower-voltage protection diodes ...

Bourns has won a IEC 61051-2 certificate of compliance for its UL 1449 listed IsoMOV surge protection devices. These are hybrid protectors, that combine a MOV (metal oxide varistor) with a gas discharge tube (GDT) in a through-hole disc-style package. The GDT blocks leakage currents through the MOV that may lead to premature failure, explained the company. “The comprehensive documentation ...

Wevo has introduced a series of runnier silicone potting gels to fill spaces more quickly. “Whereas most standard products have viscosities in the region of 1,000mPa·s, the two-component silicone gels in the Wevosil series offer around 500mPa·s,” according to the company. “That not only enables faster filling of complex component geometries, it also improves air bubble elimination with electrical encapsulation ...

Nexperia is claiming a first for an ESD protection diodes compliant to Open Alliance requirements for 10BASE-T1S automotive Ethernet – a member of the ‘single-pair Ethernet’ family. “The exceptionally low capacitance – 0.4pF – of these diodes means they can also be used to protect higher speed applications deploying 100BASE-T1 or 1000BASE-T1 in-vehicle networks while still maintaining signal integrity,” according ...

ProTek Devices has introduced a pair of 15kW transient voltage suppressors for 28V aircraft circuits. “The devices meet compliance for MIL-STD-704 and MIL-STD-19500, in addition to being RTCA DO-160G compliant,” according to the company. They are called: PAL704-P15K36 is 50 x 19 x 12mm 30g with flat terminals PAL704-P15K36T 63 x 23 x 17mm x 48g with turret terminals Both ...

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. ...

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 ...

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 ...

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 ...

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 ...