ROHM reached the cooperation with Ameya360

发布时间:2017-04-14 00:00

Beijing time on July 5, 2016, ROHM Co., Ltd. and Chinese Internet business enterprise AMEYA360 reach agreement on the saling of semiconductor and electronic components in

About Ameya360

Ameya360 is run by AMEYA Holding Limited.

AMEYA Holding Limited is a leading multi-channel and excellent service distributor, markets and distributes a comprehensive range of products and services. Serving thousands of customers worldwide, we've got more than 3,500 supplier partners and over 10,000,000 electronic components in stock.

About ROHM

ROHM Semiconductor (ローム株式会社 Rōmu Kabushiki-gaisha?) is a Japanese electronic parts manufacturer based in Kyoto, Japan. ROHM was incorporated as Toyo Electronics Industry Corporation by Kenichiro Sato (佐藤 研一郎) on September 17, 1958.

The company was initially known as R.ohm which was derived from R, for resistors, the original product, plus ohm, the unit of measure for resistance.

The name of the company was officially changed to ROHM in 1979 and then changed again to ROHM Semiconductor in January 2009.

When ROHM was established, resistors were its main product. Later, the company began manufacturing semiconductors. IC's and discrete semiconductors now account for about 80% of ROHM's revenue.


Enterprise news


SiC Power MOSFETsROHM’s SiC MOSFETs feature low ON resistance and low switching lossROHM’s silicon carbide (SiC) MOSFETs are available in a range of current ratings and packages. They come in a variety of ON resistances and voltage (VDSS) ratings of 650 V, 1,200 V, or 1,700 V. Unlike IGBTs there is no tail current during turn-off resulting in faster operation and reduced switching loss. Also, unlike silicon devices, the ON resistance remains relatively constant even at high temperatures, minimizing conduction losses. Both 2nd generation planar with maximum short-circuit withstand time and 3rd generation trench with reduced input capacitance and lower gate charge models are offered. Bare dies up to 1,700 V are also available.FeaturesFast switching with low lossMaximum junction temperature: +175°CPackaged devices rated at 650 V, 1,200 V, or 1,700 VON resistance from 17 mΩ to 1,150 mΩSpice model and thermal model available2nd gen planar technology with longer short-circuit withstand timeNo limitations on the use of the body diode3rd gen trench technology with low input capacitance (CISS) and low gate charge (QG)DC blocking voltage: 650 V, 1,200 V, 1,700 VMinimal switching lossesOperating temperature range: -40°C to +175°CApplicationsInverters for induction heatingMotor drive invertersBidirectional convertersSolar invertersPower conditioners3rd Generation TO-247-4L Package with Kelvin Source Connection(NEW)ImageManufacturerPart NumberDescriptionAvailableQuantityView DetailsSCT3040KRC141200V NCH SIC TRENCH MOSFET IN 430View DetailsSCT3080KRC141200V NCH SIC TRENCH MOSFET IN 430View DetailsSCT3105KRC141200V NCH SIC TRENCH MOSFET IN 430View DetailsSCT3030ARC14650V NCH SIC TRENCH MOSFET IN 4P0View DetailsSCT3060ARC14650V NCH SIC TRENCH MOSFET IN 4P30View DetailsSCT3080ARC14650V NCH SIC TRENCH MOSFET IN 4P0View DetailsSiC Power MOSFETs SingleImageManufacturerPart NumberDescriptionAvailableQuantityView DetailsSCT2080KECUMOSFET N-CH 1200V 40A TO-24720View DetailsSCT2120AFCUMOSFET N-CH 650V 29A TO-220AB10View DetailsSCT2280KECUMOSFET N-CH 1200V 14A TO-24722View DetailsSCT2450KECUMOSFET N-CH 1200V 10A TO-24717View DetailsSCT2H12NZGC11MOSFET N-CH 1700V 3.7A TO-3PFM55View DetailsSiC Power MOSFETs ArraysImageManufacturerPart NumberDescriptionAvailablQuantityView DetailsBSM080D12P2C008MOSFET 2N-CH 1200V 80A MODULE4View DetailsBSM120D12P2C005MOSFET 2N-CH 1200V 120A MODULE8View DetailsBSM300D12P2E001MOSFET 2N-CH 1200V 300A MODULE22View DetailsBSM180D12P2C101MOSFET 2N-CH 1200V 180A MODULE10View Details
2019-09-17 00:00 阅读量:5286
ROHM authorized online sales platformAmeya360 Components Supply Platform:www.ameya360.comIf interested kindly click here for more details: has recently announced the availability of a CMOS op-amp featuring the lowest noise in the industry optimized for industrial applications requiring high-accuracy sensing, such as accelerometers used in sonar systems, and optical sensors that handle ultra-small signals.In recent years, in addition to IoT devices, sensors are being adopted in a variety of applications from portables and vehicle systems to industrial equipment, to improve functionality and provide advanced control. Used to detect and convert various environmental and physical changes into signals, sensors demand high accuracy, but at the same time peripheral sensor circuitry is trending towards lower voltages to achieve greater power savings.Op-amps are configured at the rear stage to amplify the analog sensor output, but because sensor signals are so weak it is necessary to implement noise countermeasures to ensure high-accuracy transmission. In response, ROHM developed a high noise tolerant op-amp for the automotive market utilizing a vertically integrated production system that leverages original analog design technologies and processes. ROHM has introduced an op-amp that delivers the industry’s best performance against external noise optimized for consumer devices and industrial equipment.The LMR1802G-LB, developed utilizing ROHM’s market-leading analog technology covering circuit design, processes, and layout, reduces input equivalent noise voltage density by half (2.9nV/√Hz at 1kHz, 7.8nV/√Hz at 10Hz) compared to conventional products, significantly improving the detection performance of sensor signals. In addition, best-in-class phase margin (68°) and capacitive load tolerance (500pF) provide excellent stability (difficult to oscillate, easy to handle). This enables accurate amplification of voltages in the order of µV, ensuring support for industrial and consumer applications requiring high-precision sensing.Key Features1.Easy to use despite low noise results in the industry’s best performing CMOS op-ampsThis latest product combines ROHM’s superior analog technology covering circuit design (new circuit at the differential input stage), layout (analog design cultivated over many years), and processes (optimized for low noise) to achieve ultra-low-noise. The input equivalent noise voltage density of 2.0nV/√Hz at 1kHz and 7.8nV/√Hz at 10Hz are approximately half that of products on the market, ensuring superior low-noise performance.In addition, in the past when pursuing lower noise in op-amps there were problems such as poor phase margin and capacitive load characteristics, as well as oscillation that made circuit design difficult, but introducing a new circuit at the differential input stage allowed ROHM to achieve industry-low noise along with a class-leading phase margin of 68° and capacitive load tolerance of 500pF.This doubles the detection capability of sensor signals over conventional solutions, enabling accurate amplification of voltages on the order of µV, improving performance with sensors that demand higher precision.2. Minimizes input offset voltage and input bias currentIn terms of op-amp configuration, the output voltage should be 0V when the input is 0V, but an offset voltage is often generated as an error. Also, if the sensor’s output impedance is high the sensor output voltage will be affected if the input bias current of the op-amp is large. Consequently, these two error factors must be made as small as possible to ensure optimal performance.The LMR1802G-LB offers an input offset voltage of 450µV and input bias current of only 0.5pA (4x and 2x less than conventional products, respectively), providing high accuracy amplification.Pricing:TBDAvailability: June 2018 (Samples), October 2018 (OEM quantities)Application ExamplesDistance measuring equipment utilizing sonar and optical sensorsSecurity systems, IR remote controls, night vision, and other sets equipped with IR sensorsDevices demanding high accuracy operation (i.e. HDD)Equipment management systems including flow meters and gas detectorsOther industrial and consumer sets integrating sensors requiring high accuracy detection SpecificationsTerminologyCMOS (Complementary Metal Oxide Semiconductor)Typically features smaller input current vs bipolar types, making it suitable for low-voltage operation.
2018-08-18 00:00 阅读量:6245
ROHM authorized online sales platformAmeya360 Components Supply Platform www.ameya360.comIf interested kindly click here for more details: recent years, the number of portable devices such as smartphones and wearables that utilize rechargeable batteries (i.e. lithium ion) has risen dramatically. Meanwhile, the adoption of conventional dry-cell batteries resulting from application diversification and expansion into overseas markets for electronic dictionaries, remote controls for home appliances, and electronic gadgets is progressing at a rapid pace, increasing the demand for power supply ICs that can provide greater energy savings.In response, ROHM leveraged power processes and analog circuit technologies cultivated over many years to develop power supply ICs that meet market needs, including this latest converter optimized for devices powered by dry-cell batteries. The BU33UV7NUX outputs the 3.3V necessary for driving MCUs in applications requiring 1-3V input from 1 to 2 dry-cell batteries. Pursuing lower current consumption to prolong operating time in battery-equipped devices allowed ROHM to achieve an industry-low current consumption of 7µA (vs functionally equivalent products), extending operating time by as much as 175 days over conventional products, from 540 days to 715 days (ROHM study, 50µA load current and assuming standby operation in conventional remote controls driven by 2 alkaline batteries). In addition, a load current mode switching function is built in that allows existing remote controls to support the latest high-performance systems equipped with LCD panels, providing greater energy savings in a wide range of sets.Key Features1. Low current consumption and low-voltage drive contribute to longer battery lifeIn order to prolong operating life with dry-cell batteries, ROHM leveraged original analogy design technologies and power system processes to achieve a current consumption of just 7µA, the smallest in the industry among functionally equivalent products. This makes it possible to increase battery life in conventional remote controls powered by 2 alkaline dry-cell batteries by approx. 1.3x over existing solutions, providing an extra 175 days of operation (ROHM study, assuming standby mode and a load current of 50µA). In addition, the BU33UV7NUX can be driven by input voltages as low as 0.9V and supports both single dry-cell and button-type lithium-ion battery sets. Plus, the built-in battery leak detection function makes it particularly suited for dry-cell applications.2.Load current mode switching improves efficiency in a wide range of applicationsA load current mode switching function is included that allows existing remote controls to support the latest high-performance LCD-equipped sets while delivering superior energy savings.Adopting a low-power mode for standard products (50mA max. load current, 7µA current consumption, PFM control), and automatically switching to high-power mode for high-performance (500mA max. load current, 13µA current consumption, PFM/PWM switching control), make it possible to achieve high efficiency power conversion as high as 94% under a wide range of conditions.Specifications      Target Applications· Electronic dictionaries· Remote controls· Electronic gadgets (i.e. toys, accessories)· Wearables· Electric toothbrushes…and other sets driven by 1-2 dry-cell (1 to 3V) or button-type li-ion batteries
2018-02-28 00:00 阅读量:2107
ROHM authorized online sales platform Ameya360 Components Supply Platform Please feel free to come and purchase other products. ! ROHM has recently announced the availability of an ultra-compact reflector-type LED optimized for consumer devices such as matrix light sources for gaming and wearables that demand increased miniaturization. The MSL0402RGBU reflector-type 3-color LED leverages miniaturization technology cultivated over many years to achieve the smallest size in the industry (1.8mmx1.6mm). This enables high-density mounting and provides excellent color mixing characteristics, ensuring support for high resolution LED matrices. In order to turn on matrix light sources it is necessary to take measures against ESD. Unlike conventional solutions that utilize a Zener diode, theMSL0402RGBU adopts an element with high ESD resistance. This makes it possible to superior ESD protection without a Zener diode and prevent light emission of unnecessary blocks in matrix circuits, resulting in clearer display. In recent years, LEDs capable of representing the full color range are expected to be widely adopted in a variety of fields, including digital signage requiring improved design flexibility. At the same time, as applications become smaller and more sophisticated the need for greater expressiveness grows, along with increased miniaturization and long-term reliability. Up to now, ROHM offers ultra-compact molded type LEDs (PICOLED®), high brightness reflector types (MSL series), and compact high brightness 3-color LEDs with excellent color mixing, but to meet market demands ROHM developed the industry's smallest high brightness reflector-type RGB LEDs (MSL0402RGBU). Availability: NowPricing: $0.23 /unit (1,000pcs) Key Features 1. Reflector-type high brightness RGB LED delivers greater color representation in the smallest form factor on the market Until now, 3.5mm x 2.8mm LEDs are typically used in dot matrices, resulting in a coarse display which can be problematic when higher resolution is demanded. In response, ROHM utilizes miniaturization technology cultivated through decades of LED development to reduce mounting area by 70% over ROHM's conventional LEDs. This makes it possible to construct high brightness, ultra-high resolution matrix light sources that contribute to improved performance and display capability in gaming and other applications. 2. Class-leading anti-sulfuration performance increases reliability The combination of silver plated frames and silicon resins used in conventional LEDs will typically result in a drop in brightness after 1 year due to 30% sulfuration caused by sulfur components in the air originating from tobacco smoke and exhaust gases, presenting problems for long-term reliability. In response, the MSL0402RGBU utilizes a gold plated substrate that prevents sulfuration even when silicon resin packages are used. This minimizes brightness degradations and contributes to greater long-term application reliability. 3. High ESD resistance eliminates the need for a Zener diode Normally, Zener diodes are used as a countermeasure to static electricity in LEDs. However, in matrix circuits this can cause current to flow to other LEDs, resulting in unwanted light emission. In contrast, the MSL0402RGBU employs a high ESD resistance element that eliminates the need for a Zener protection diode, ensuring superior display performance in matrix circuits. Specifications Part No. Color IF (mA) VF (V) Brightness (mcd) λD (nm) MSL0402RGB(6pin) R 20 2.1 400 624 G 3.5 550 527 B 3.3 180 470 Applications Matrix light sources for gaming and entertainment Display light sources for industrial and consumer equipment
2017-05-12 00:00 阅读量:1966
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AMEYA360商城(上线于2011年,现 有超过3500家优质供应商,收录600万种产品型号数据,100 多万种元器件库存可供选购,产品覆盖MCU+存储器+电源芯 片+IGBT+MOS管+运放+射频蓝牙+传感器+电阻电容电感+ 连接器等多个领域,平台主营业务涵盖电子元器件现货销售、 BOM配单及提供产品配套资料等,为广大客户提供一站式购 销服务。