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 ...
Passives
5W surface-mount current sense resistors
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 ...
Three-phase EMC filters from 1 to 150A
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 ...
DMASS warns against over-reaction to 25% decline
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, ...
16.6μF <1pH silicon capacitor for IC interposers
Empower Semiconductor is aiming at high-performance decoupling within IC substrates and interposers with its largest silicon capacitor yet, the 16.6μF EC1005P. “The performance of SoCs and other large computing processors are constantly increasing, said Empower marketing manager Mukund Krishna. “It is becoming increasingly difficult to reach the level of power integrity and voltage regulation that these devices require with conventional ...
Tiny screened SMD inductors handle many amps
Component distributor Rutronik is offering a series of tiny surface-mount magnetically shielded power inductor from Knitter, The ICSIxxxxxxTxSHyST12 series spans sizes between 1.6 x 0.8 x 0.8mm and 6.6 x 6.4 x 3.1mm, inductance from 0.1 to 10μH and saturation currents from 1.3 to 35A. “The inductor series works reliably at operating temperatures from -40 to +125°C and is suitable ...
Snap-in electrolytics rated for 5,000 hours at 105°C
Kyocera AVX has launched two series of snap-in -25 to 105°C electrolytic capacitors for commercial and industrial applications. SNA capacitors are rated for a life of 5,000 hours. Voltage ratings are 250, 420 or 450Vdc, capacitance is between 82 and 1,500µF (±20%), and there are 24 case sizes spanning 22mm diameter x 25mm long to 35∅ x 50mm. As well ...
1kV 22nF ceramic capacitor for vehicle on-board chargers
Samsung is aiming at electric vehicle on-board chargers with a 1,000v 22nF multi-layer ceramic capacitor. CL32C223JIV1PN# (yes, there is a # in the part number) is aimed at CLLC resonant power supply topologies and is constructed with a COG dielectric. Operation is across -55 to +125°C and it has a ±5% tolerance. Packaging is a 2.5mm tall 3.2 x 2.5mm ...
5 x 9mm inductor handles 200A
ITG Electronics is aiming at server motherboards and storage devices with a series of high-current surface-mount ferrite inductors. The SLA36385A series has a 5 x 9mm footprint and 9.5mm height, and yet the components can handle up to 230A. Inductances range across 35 to 470nH. “The 35nH component can handle more than 200A, with approximately 20% roll off”, said the ...
Self-resetting fuses for compact lithium polymer batteries
Bourns has created a series of self-resetting fuses that can carry from 12 to 20A at 60°C. Called Model NX, they measure 2.8 x 9.8mm including two 2.8 x 2.5mm flat connecting tabs, one at each end. Height is just under 1mm. “While our new Model NX Series has the same footprint as our Model NR series, it can carry ...