Podzespoły MG12600WB-BR2MM - półmostkowe moduły IGBT 1200 V/600 A
Firma Littelfuse wprowadziła do oferty serię półmostkowych modułów IGBT MG12600WB-BR2MM przeznaczonych do zastosowania w sterownikach napędów przemysłowych, falownikach, spawarkach i zasilaczach UPS o dużej mocy. Moduły mają napięcie przebicia 1200 V i większy, dopuszczalny prąd obciążenia w porównaniu do wcześniej oferowanych - 600 A zamiast 450 A.
Jednocześnie są z nimi kompatybilne pod względem sterowania i wyprowadzeń, dzięki czemu mogą być stosowane zamiennie w razie potrzeby zapewnienia większej mocy zasilania dostarczanej do obciążenia. Moduły z serii MG12600WB-BR2MM są oferowane w obudowie o wymiarach 152 mm×62 mm×17 mm z terminalami śrubowymi o konfiguracji WB.
W modułach zastosowano technologię Trench-gate Field Stop IGBT zapewniającą małe straty wskutek przewodzenia i przełączania. Oprócz tego zapewnia ona małe napięcie nasycenia i dodatni współczynnik temperaturowy, co ułatwia równoległe łączenie modułów.
|Więcej na www.littelfuse.com|
czwartek, 27 kwietnia 2017 18:04
Samsung Electronics has posted 9.9 trillion won in operating profits for the first quarter of 2017 - a rise of 48.3 percent from last year, the company said. It is the firm's second-highest profit ever on record, and was largely achieved by its chip business, which contributed nearly two-thirds, or 6.32 trillion won. Samsung's high-density chips allowed for higher average sale prices, despite a slower demand due to seasonality. The South Korean tech giant is a leader in DRAM and NAND, both in market share and commercial technology levels, and soaked up a demand for datacenters, enterprise SSDs, and flagship smartphones. więcej na: www.zdnet.com
czwartek, 27 kwietnia 2017 16:00
U.S. buyout firm KKR said it has agreed to buy Hitachi Ltd's chip-making equipment and video solution unit in a deal valuing the company at $2.3 billion, its second purchase of a Hitachi unit. After completing the acquisition of Hitachi Kokusai Electric, KKR will spin off the chip-making equipment unit, retaining 100 percent ownership of that business. It will sell a 40 percent stake in the video solutions business to Hitachi and a Japanese investment fund, Japan Industrial Partners Inc. więcej na: www.dailymail.co.uk
czwartek, 27 kwietnia 2017 14:02
United Microelectronics Corp. said sales of its most advanced technology node have slipped for a third time under strong competition. The company’s 28nm process fell to 17 percent of overall sales in the first quarter of this year compared with 22 percent in the fourth quarter last year. It’s been a bumpy ride for UMC. The company has seen its portion of overall sales from 28nm decline on a quarterly basis for the third time since ramping up the process technology nearly three years ago, according to company reports. więcej na: www.eetimes.com
czwartek, 27 kwietnia 2017 11:55
Finnish network equipment maker Nokia reported a slowing rate of sales decline, saying the global networks market was showing signs of recovery. Nokia and its rivals, Sweden's Ericsson and China's Huawei Technologies, have struggled in recent years as telecom operators' demand for faster 4G mobile broadband equipment has peaked, and upgrades to next-generation 5G equipment are still years away. Nokia said the business momentum was now improving: first-quarter network sales fell 6 percent from a year earlier to 4.9 billion euros ($5.3 billion), compared with a decline of 14 percent in the previous quarter. więcej na: www.reuters.com
czwartek, 27 kwietnia 2017 10:00
Ride-hailing giant Didi Chuxing is near an agreement to raise at least $5 billion in a deal that would make it the most valuable startup in China, according to people familiar with the matter. The round may close as soon as this week and would lift Didi’s valuation to about $50 billion, up from a previous $34 billion after its acquisition of Uber Technologies Inc.’s China business, said one of the people, asking not to be identified because the matter is private. więcej na: www.bloomberg.com
czwartek, 27 kwietnia 2017 07:55
Demand for semiconductor-grade silicon wafers has been robust, which expects the market to see tight supply through the end of 2018. The market shortage will continue to drive up wafer prices, said GlobalWafers. Prices for mainstream 12-inch wafers, for example, will continue to rise 5-10% quarterly. GlobalWafers also anticipated that wafer prices will see larger growth in the second half of 2017 than in the first half, as the ongoing shortage will become more acute in the second half of the year. więcej na: www.digitimes.com