Infineon OptiMOS 8 100 V MOSFETs: Efficient power chips for motor drives and battery systems

Infineon’s OptiMOS 8 100 V power MOSFET family targets brushless DC motor drives and battery protection with lower losses, compact packaging, and automotive-ready reliability for designers of e-mobility, power tools, and industrial equipment.

Responsible: ad hoc news Lifestyle & Consumer Desk. Reviewed prior to publication on June 12, 2026 at 10:40:58 PM ET. Details in the imprint.

Infineon Technologies AG is expanding its power semiconductor lineup in the 100 V class with the OptiMOS 8 100 V power MOSFET family, aimed at designers of compact motor drives and battery-powered systems. The chips are engineered to cut conduction and switching losses, which is crucial in high-current brushless DC motors, battery management systems, and power tools. For U.S. customers, the devices are available through major distributors and online channels in a range of popular power packages, including small-footprint SSO8 and high-current D²PAK-style housings. That places the new OptiMOS 8 parts directly in the path of fast-growing applications such as light e-mobility, cordless tools, drones, and small industrial drives.

What the OptiMOS 8 100 V MOSFETs are designed to do

The OptiMOS 8 100 V family sits in Infineon’s broader OptiMOS portfolio of N-channel power MOSFETs, a line that the company positions for high-efficiency, fast-switching power conversion. According to Infineon, the 100 V generation focuses in particular on motor control and battery protection in systems that operate in the 36 V to 80 V range, such as 48 V battery packs, industrial servo drives, and e-scooters. In these environments, designers face a trade-off: they need enough voltage margin for transients while keeping conduction and switching losses under tight control to preserve runtime and limit heat.

To address that, the new OptiMOS 8 100 V devices are built on an optimized trench MOSFET technology that aims for a low drain-source on-resistance R_DS(on) at a given die size. Lower R_DS(on) directly reduces I²R conduction losses when the MOSFET is fully on, a parameter that matters when currents reach tens or even hundreds of amps in compact brushless DC motor inverters. For U.S.-based engineers designing 48 V BLDC drives, this can translate into either higher continuous torque for the same thermal budget or the option to shrink heatsinks and enclosures.

Infineon also emphasizes reduced gate charge and improved figure of merit compared with prior generations, which helps cut switching losses at the PWM frequencies common in motor control and DC-DC conversion. A lower gate charge means the MOSFET can be turned on and off faster for a given driver current, which in turn reduces transition times and associated switching dissipation. In applications such as battery-powered lawn equipment or cordless vacuum cleaners, that efficiency gain supports longer runtime per charge without changing the battery pack.

Beyond raw efficiency, the OptiMOS 8 100 V family includes ruggedness features important for real-world deployment. Infineon highlights safe operating area performance and avalanche capability, which help the MOSFET survive load-dump events and inductive kickbacks that can occur when motor phases are switched quickly or when long cabling is involved. For designers shipping products into harsh environments, such as outdoor power tools or light electric vehicles, this robustness can reduce field failures and warranty risk.

Package options and integration into compact consumer hardware

The OptiMOS 8 100 V MOSFETs are offered in several standard power packages, including compact SSO8 and larger D²PAK-type footprints geared to different current levels and cooling concepts. Surface-mount SSO8 parts address space-constrained boards in consumer and prosumer products, where engineers want to keep the power stage low-profile and fully compatible with automated assembly. Larger packages with exposed pads or wide leads are targeted at higher-current rails where board-level thermal spreading is required.

Infineon supplies detailed application notes and reference designs to help engineers drop the devices into motor drive and battery protection topologies. For example, in a 48 V brushless DC motor inverter, multiple OptiMOS 8 100 V MOSFETs can be paralleled in each half-bridge to share current and reduce conduction losses, while careful gate-drive tuning limits switching spikes and EMI. Infineon’s own microcontrollers, gate drivers, and current-sense elements are positioned as complementary components in these power stages, allowing the company to sell a more complete chipset into consumer and light industrial OEMs.

On the battery side, the same MOSFETs can be used as high-side or low-side switches in battery management systems that protect lithium-ion packs from overcurrent and short-circuit conditions. In such circuits, a low R_DS(on) is important not only for efficiency, but also for minimizing voltage drop so that pack voltage remains stable at the load. With 100 V rating, designers of 48 V and 60 V systems have added headroom against transient events, which can be an important design margin for tools and e-mobility products operating outdoors.

Target applications in U.S. lifestyle and consumer segments

While OptiMOS 8 100 V is a semiconductor building block rather than an end-user gadget, the device family is aimed squarely at products that U.S. consumers recognize: e-bikes, e-scooters, battery-powered lawn equipment, cordless power tools, consumer drones, and small home appliances. In each case, manufacturers are under pressure to increase power and runtime without making devices heavier or hotter, and the choice of MOSFET in the power stage directly influences that balance.

In light electric vehicles, such as e-bikes or compact cargo bikes, 48 V battery architectures have become common because they strike a compromise between safety, range, and motor performance. Here, 100 V MOSFETs give designers enough voltage headroom for regenerative braking and transient conditions while still staying in a familiar design window for drivers and controllers. When these motors climb hills or carry heavy loads, MOSFET conduction losses translate directly into wasted battery energy and heat; OptiMOS 8’s lower loss characteristics are therefore aimed at improving range per charge.

For cordless tools sold through U.S. retail chains, from big-box home-improvement stores to online marketplaces, manufacturers are aggressively migrating from brushed to brushless motor architectures. Brushless designs are more efficient and durable but require a multi-phase inverter and more sophisticated electronics. In this context, the MOSFETs chosen for the inverter stage set the thermal and efficiency baseline for the entire tool. By offering a broad portfolio of current ratings and packages within the OptiMOS 8 100 V family, Infineon gives tool makers flexibility to tailor cost and performance across budget and premium product lines.

Consumer drones and hobby vehicles represent another niche where weight and battery life are critical. While some of these platforms use lower-voltage MOSFETs, higher-end or heavier craft can benefit from 100 V devices where power levels increase. Here, fast switching and low capacitances help minimize switching loss at high PWM frequencies, which can be important for smooth motor control and precise thrust modulation.

Availability for U.S. design houses comes primarily through authorized distributors and catalog houses, which list OptiMOS 8 100 V MOSFETs with per-unit pricing that varies by package and order volume. As of mid-2026, typical unit prices for these kinds of discrete MOSFETs range from well under $1 in volume to a few dollars per piece for higher-current or more specialized variants; exact pricing for specific part numbers is set by distributors and can fluctuate with demand and supply conditions.

Position inside Infineon’s broader chip portfolio

Infineon describes itself as a global semiconductor leader in power systems and IoT, with product lines that span power MOSFETs, IGBTs, gate drivers, microcontrollers, sensors, security ICs, and connectivity solutions. Within this structure, the OptiMOS family is one of the company’s core offerings for power management in automotive, industrial, and consumer applications. The 100 V OptiMOS 8 generation extends this line into high-efficiency designs at the upper end of low-voltage systems, complementing lower-voltage MOSFETs aimed at computing and server power supplies.

Industrial automation and robotics are key focus areas for Infineon, where efficient motor control is central. The same MOSFET technology that powers consumer and lifestyle products finds use in robot joints, conveyor drives, and collaborative robots, which must be efficient, compact, and safe. Infineon promotes integrated solutions that combine OptiMOS switches with its XMC or AURIX microcontrollers, isolated gate drivers, and sensor ICs, positioning the company not just as a component vendor but as a system enabler for energy-efficient motion control.

The new OptiMOS 8 100 V devices also align with Infineon’s emphasis on energy efficiency and decarbonization. By reducing power losses in motor drives and power conversion, the chips contribute indirectly to lower energy consumption of end products. This fits the company’s messaging around enabling green and efficient energy and clean mobility, themes Infineon highlights in its corporate profile and investor communications.

For now, the OptiMOS 8 100 V MOSFET family underlines Infineon’s ambition to deepen its role in battery-powered consumer and light industrial equipment by offering efficient, rugged, and application-focused power semiconductors. Shares of Infineon Technologies AG (DE0006231004, ticker IFNNY) traded at $92.75 on the U.S. over-the-counter market on May 6, 2026.

OptiMOS 8 100 V at a glance

• Product: OptiMOS 8 100 V power MOSFET family
• Manufacturer: Infineon Technologies AG
• Category: Lifestyle and consumer power semiconductor
• Launch date: 2026 (100 V OptiMOS 8 introduction reported)
• MSRP / Price: Varies by part number and volume, typically under a few US dollars per unit in distribution (as of 2026)
• Availability: Available to U.S. customers via authorized distributors and online component retailers
• Target audience: Engineers and OEMs designing 36 V to 80 V motor drives, battery-powered tools and e-mobility devices
• Key feature / USP: Low-loss 100 V MOSFET technology optimized for motor control and battery protection

This article was created with a.i. assistance and editorially reviewed. Product information is provided without warranty; prices and availability may change at any time. Not investment advice, not a buy or sell recommendation. Trading in securities carries risks up to the total loss of capital.