Passives

Wurth is offering vibration-resistant versions of its surface-mount aluminium electrolytics and aluminium hybrid polymer capacitors. “SMT components are often not the best choice because, without special adaptations, they may not withstand the prolonged vibration stress,” said the company .” However, making electronics vibration-resistant does not necessarily require special connection techniques like press-fitting. Thanks to their enlarged solder pads and thicker ...

TDK has created a range of surface-mount high-current common-mode chokes. “Customers who prefer reflow soldering but need high-current common-mode chokes can now get an SMD solution,” according to the company. “These components can filter common-mode noise for rated currents from 24 A to 36 A at a temperature of +70°C. With additional cooling higher currents can be achieved – this ...

Vishay has introduced a series of multi-turn surface-mount cermet trimmer potentiometers for harsh environments. Sealed to IP67, TSM3 variable resistors operate across -65 to +150°C, and most can dissipate 125mW at +70°C. 17 resistance options from 10Ω to 2MΩ are available, with only the highest values rated at less than 125mW as the maximum dc voltage allowed is 200V: 500kΩ ...

Chemi-Con has introduced nanocrystalline core ac and dc common-mode inductors to improve upon the size of its existing FL-V series, calling the new parts the FW series. “The material’s high magnetic permeability reduces the core volume and the number of copper wire turns needed to achieve a design,” claimed distributor TTI IP&E, which is stocking the parts. “Compared to FL-V ...

Achieving high-efficiency current sensing requires shunt resistors that combine low resistance values with robust power handling. However, finding sense resistors that deliver both a high power-to-size ratio and affordable pricing can often be a challenge. Stackpole’s CSNL2512 series addresses this by offering a 3-watt power rating in a compact package, with low TCR (temperature coefficient of resistance) and resistance values ...

Power-over-coax circuits in automotive cameras are the target that TDK is aiming at with 1005 multi-layer inductors. Measuring 1 x 0.5 x 0.5mm, there are three devices in the MLJ1005-G series: 0.27, 0.36 and 0.47μH “With PoC technology, a single coaxial cable can simultaneously carry both power and data, streamlining the wiring,” according to the company. A filter is required ...

Richardson RFPD is aiming at hybrid circuits by stocking a range of wire-bondable top-contact 0202 resistors from Kyocera AVX. Measuring 0.51 x 0.51mm, members of the WBR series are rated at 250mW and up to 10GHz. Operation is over -55 to +125ºC, and they have a temperature coefficient of +/-150ppm/°C. 23 values are being offered, from the lowest at 7.5Ω ...

Bourns has created a series of low-profile surface-mount common-mode choke line filters. Called SRF0502, they stand 2.5mm tall and have a 5 x 5mm footprint. It “latest line filter series features a shielded construction that helps to minimise EMI while delivering low dc resistance, current rating up to 5A and a frequency range up to 700 MHz”, said the company. ...

Vishay has slotted 350, 500, 550 and 600V four-terminal aluminum electrolytic capacitors into its 299 PHL-4TSI snap-in family “greatly expanding the range of capacitance-voltage combinations available to designers of power supplies and industrial and home appliance inverters”, according to the company. With a cylindrical aluminum cases (with pressure relief) from 35mm in diameter by 50mm tall to 45 dia by ...

Littelfuse has created a 200A surface mount fuse for data centre PCBs. The 12 x 13.3mm device is one of two members of the 871 fuse series, the other is rated at 150A. The full part numbers are: 0871200.UR 200A, 240mΩ, 90mV nominal voltage drop 0871150.UR 150A, 300mΩ, 75mV nominal voltage drop These are nominally fast-acting, and are rated to ...