Passives

REO’s BWD158 range of aluminium-clad water-cooled resistors are built to dissipate up to 60kW continuously. They are sealed to IP65 in an anodised aluminium housing and all connections and fixings are either stainless steel or anodised aluminium to protect against corrosion. Resistances between 2 and 850Ω are available, and different sizes have power ratings from 1kW up to 60kW. Voltae ratign ...

Stackpole Electronics is pitching its 1W-rated CSSH0805 all-metal 0805-size chip resistor family against 1206 and 2010 parts for current sensing. It comes in three temperature coefficient versions: ±100ppm types are rated up to 44.72A (89A over-load) and are available between 500μΩ and 1mΩ in 1, 2 and 5% tolerances ±75ppm types are rated up to 25.81A (51A over-load) and are available between ...

Vishay created precision resistors with 0.05% tolerance and a temperature coefficient of ±2.5ppm/°C. They are in the FRFS0402 Series, based on ‘Z1 Foil’ precision foil resistor elements by Vishay Precision Group. As well as 0.05%, four other tolerance ratings are available: 0.1, 0.25, 0.5 and 1%. Load life stability is typically ±0.01% (70°C, 2000 h, rated power). In manufacture, the firm’s bulk metal ...

Mallory is aiming its Sonalert TS5 Series silver case tantalum capacitors at consumer, industrial and military applications where a hermetic seal is not required, but the application does have a high level of shock, vibration or temperature resistance. “In addition to its silver case, the TS5 anode is sintered tantalum with embedded tantalum leads,” according to New Yorker Electronics, which is ...

Vishay Intertechnology has introduced a commercial IHLP low profile (7mm) high current composite inductor in 7575 (19 x 19mm) case size, claiming it to be an industry first. Operating at up to 155°C for computer, telecom and industrial applications, the IHLP 7575GZ-51 offers up to 30% lower dc resistance and up to 35% higher current compared with devices in 6767 cases, ...

Vishay is aiming at oil exploration, aerospace and the military with high-temperature wet tantalum capacitors. The surface-mount T24 series consists of two devices, both 9 x 7.1 x 7.4mm (case code ‘C’). 33μF – 45V at 200°C  (75V -55 to 85°C)  2.5Ωmax ESR (+25°C 120Hz) 10μF – 75V at 200°C  (125V -55 to 85°C) 5.5Ωmax ESR (+25°C 120Hz) Capacitance tolerance is ...

Sumida is aiming at filtering in digital audio amplifiers with a series of shielded high-power inductors. Called DEP1623 and measuring ~27 x 17 x 23mm, “this inductor is wound by flat wire and assembled with the Mn-Zn ferrite core. It is typically used in digital amplifier filters in home theatre and large LCDs”, according to distributor New Yorker Electronics, which ...

Murata has announced a new generation silicon capacitor process which builds devices less than 40µm thick and up to 1.3µF/mm2. Made using semiconductor lithography techniques, the capacitors are intended for high-end applications such as in-package power supply decoupling for mobiles and high-performance computing. The main change in the process is a different 3D structure with larger electrode area, plus another ...

Würth has added PoE++ transformers to its Mid-PoE power-over-Ethernet transformer series. These surface-mount devices are suitable for fly-back or active clamp forward converters that comply with the IEEE 802.3bt: the four-pair power-over-Ethernet known as 4PPoE or PoE++. “Demand for more power in PoE devices has risen due to advancements in smart and IoT applications,” according to the company. “In response, ...

Schurter has introduced a series of through-hole PCB-mount common-mode chokes for use at between 10A and 50A and up to 300Vac or 450Vdc. For single-phase applications, DKIV-1 chokes are available with ferrite or nano-crystalline cores. “Like all other aspects of electronic design, the power section is often-times built today using discrete components on printed circuit boards,” according to the company. ...