Passives

Vishay has introduced a series of surface-mount solid moulded tantalum chip capacitors specifically for electronic detonation systems “combining a robust mechanical design with low leakage current and stringent testing specifications”, according to the company. “Each part is 100% surge current tested using standard screening methods, and undergoes two additional screenings for key electrical characteristics to eliminate lot-to-lot variations.” Called TX3, ...

Stackpole is aiming at accurate high-voltage measurement with a family of resistors that are 100% tested for voltage-induced resistance variation. Called ‘HVCR’, the family incudes resistors between 10 and 100MΩ, specified to have a voltage coefficient of resistance  better than -5ppm/V for the 1206 size and -2ppm/V for the 2512 size. “Applications such as testing equipment, instrumentation, high voltage inverters, battery ...

A source of stability: four advantages of YMIN solid-liquid hybrid capacitors 01. Working principle of automobile electronic water pump As an important part of the car’s cooling system, the electronic water pump plays a vital role. Understanding how a car’s electronic water pump works is crucial to understanding its function in the vehicle. The automobile electronic water pump is driven ...

Nisshinbo Micro Devices has brought out two SAW (Surface Acoustic Wave) filters in a compact package – NSNJ2023 and NSNJ2024. Using two SAW filters in one package offers several advantages: It reduces the component’s overall size, which is particularly valuable in compact electronic devices where board space is at a premium. It also simplifies the design and manufacturing process, reduces ...

Samsung has created a 630V 100nF multi-layer ceramic capacitor in 1210 size (3.2 x 2.5mm) specifically for electric vehicle dc-dc converters and on-board chargers. CL32B104KHU6PN has an X7R dielectric (±15% capacitance -55 to +125°C) and a maximum rated voltage of 630V. “A dc-dc converter converts high voltages to 12Vdc in order to operate in-vehicle infotainment systems, for example,” according to ...

Schaffner has added nanocrystalline core versions of its ~65mm diameter RT common-mode choke series. Identified by part numbers of the form RT8xx1, they come in a choice of horizontal or vertical core orientation (see image) with two or three windings for single or three-phase power, as well as dc. “Based on nanocrystalline core technology, the series achieves up to 15dB ...

Emis has created a range of three phase, dual stage EMC filters designed for industrial motor and drive systems across 5 to 170kW. TMF3221 and TMF3222 “are housed in a space-saving slim book-shelf enclosure which may be installed next to inverters, converters or motor drives”, according to the company. “The devices are designed to meet the needs of power drive ...

A new selection of materials has allowed Rohm to add 5W rated current sensing resistors to its 2512 sized (6432 metric) PMR100 series of metal plate shunts, formerly rated at either 2 or 3W only. They are available in 0.5, 1 and 1.5mΩ. “Adopting a proprietary trimless structure suppresses the rise in temperature caused by localised current concentration. This allows ...

EMI Solutions has introduced three-phase single-stage chassis-mount mains EMI filters aimed at common mode and differential mode suppression. Called the MF423-3W series, they come in four footprints: 1-10A: 85 x 51mm 15-40A: 128 x 121mm 50-60A: 100 x 107mm (pictured) 75-150A: 350 x 160mm Currents are at 40°C (range is -25 to +85°C) and in each case the first dimension ...

The latest figures from European Components Distribution (DMASS) show a decline in Q1 of 23.3% with semiconductor revenue dropping by 26.5%. DMASS Europe’s chairman, Hermann Reiter, was keen to stress there is no cause for alarm, saying that this market consolidation was long overdue. “Everyone should have prepared to weather a few quarters of weak bookings and billings,” he said, ...