Alpha and Omega Semiconductor

About Alpha and Omega Semiconductor

Alpha and Omega Semiconductor (AOS) is a leader in designing, developing, and selling a variety of power semiconductors. Founded in 2000, the corporation is headquartered in Sunnyvale, California. It has over 3,000 employees worldwide and offices in Europe, South Korea, Hong Kong, Taiwan, Mainland China, and Japan.

What types of products does AOS offer?

The corporation manufactures many electronic components that have applications in automotive, e-mobility, LED lighting, computing, power supply, datacom, renewable energy, telecommunications, and television industries. Its product portfolio includes power field-effect transistors, transient suppressors, switching regulators, MOSFET drivers, fixed positive single output LDO regulators, multiplexers, bus controllers, data line filters, pulse/datacom transformers, switches, and motion control electronics.

What are some examples of outstanding AOS products?

The firm manufactures many high-quality power semiconductors. Here are some of the manufacturer’s most impressive products.

AOD424: THIS an N-channel MOSFET combines world-class metal-oxide-semiconductor FET technology with a low-resistance package to offer a low drain-source on resistance. It is ideal for load switching and battery protection applications. It also has a junction and storage of temperature range of -55°C to 175°C

AO4812: This small signal field-effect transistor features contemporary trench technology that enables a low drain-source on-resistance and low gate charge. Its two MOSFETs provide precise and efficient control and synchronized rectifier combination to support buck-boost converter projects.

AOW482: AOD designed this transistor with patented SDMOS trench technology that mixes low drain-source on-resistance and low gate charge. It offers superior efficiency with restrained switching. Its characteristics make it useful in PWM, general-purpose, and load-switching NPIs.

AOW292: This power field-effect transistor benefits from trench power MV MOSFET technology. It has a drain-source voltage of 100V and a TO-262 package. This part is suitable for synchronous rectification in DC/DC and AC/DC converters, as well as motor drive and industrial solutions.

Product categories

MOSFET
SiC MOSFET
IGBT
MCU
DC-DC regulator
IPM
Transistor
Authorized Franchise Partner

Alpha and Omega Semiconductor

Direct control with one expansive power-semiconductor portfolio, delivered by Alpha and Omega Semiconductor MOSFETs designed for exceptional performance.

Integrated design
Discrete, IC, and packaging expertise
Voltage coverage
Comprehensive selection of MOSFETs
Automotive ready
AEC-Q101 devices with PPAP capability
Product depth
2,300+ available products for selection
What we distribute

Product categories

Analog & discrete
Passives
Electromechanical
System solutions

MOSFET

Efficient power switching

SiC MOSFET

High-voltage power efficiency

IGBT

High-power switching control

MCU

Programmable embedded control

DC-DC regulator

Efficient voltage conversion

IPM

Integrated power control

Transistor

Signal amplification and switching

Markets served

Powering diverse applications

Automotive + transportation
Communications + networking
Industrial automation
Energy
Your new partner

Why customers choose

Alpha and Omega Semiconductor

Alpha and Omega Semiconductor brings process technology, circuit design, and advanced packaging together to address challenges across high-volume electronic applications.

Alpha and Omega Semiconductor
alternative manufacturers
Diodes
Infineon
Onsemi
Toshiba
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What products does Alpha and Omega Semiconductor make?

Alpha and Omega Semiconductor develops discrete power devices, wide-bandgap semiconductors, power-management ICs, and integrated modules. These components support power conversion, circuit protection, battery management, and voltage regulation in automotive electronics, AI servers, data centers, industrial equipment, consumer electronics, and power supplies.

Which AOS MOSFETs are designed for AI servers and data centers?

The AONC40202 and AONC68816 are Alpha and Omega Semiconductor MOSFETs developed for high-power-density intermediate bus converter DC-DC applications in AI servers and data centers. Both use DFN 3.3 x 3.3 source-down packaging with double-sided cooling to improve heat removal and support compact board layouts.

What Alpha and Omega Semiconductor MOSFETs are suitable for automotive and EV applications?

AOS offers AEC-Q101-qualified automotive MOSFETs that are PPAP-capable, rated for junction temperatures up to 175°C, and available across the 40 V to 100 V range. AOS also offers automotive-qualified SiC MOSFETs for higher-voltage EV functions, including onboard chargers and traction inverters.

What are AOS intelligent power modules used for?

Alpha and Omega Semiconductor intelligent power modules combine power switches, gate-driving functions, and protection features within a compact module for motor-control applications. Their integrated construction can reduce component count and simplify inverter design where board space, heat dissipation, and power density are key constraints.

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