| With its higher electrical efficiency, our new family of high-voltage (650 V @ 25 ºC) power MOSFETs features the best RDS(on) * area on the market.
The improvement in RDS(on) achieved with MDmesh V significantly reduces losses in line-voltage PFC circuits and power supplies. This in turn enables new generations of electronic products offering greater energy savings, superior power density, and more compact applications.
This new technology will help product designers tackle emerging challenges such as the high-efficiency targets of new eco-design directives, and will also benefit the renewable energy sector by saving vital watts normally
lost in power-control modules.
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MDmesh V is a new silicon-based 650 V cutting-edge technology, which combines an innovative proprietary vertical technology and process with the company’s well-known PowerMESH™ horizontal layout. This technology achieves up to 40% better RDS(on) versus the previous MDmesh II technology and establishes a new milestone in the power switch arena, becoming the world’s best RDS(on) * area (with 650 V at 25 °C breakdown voltage) in TO-220, TO-220FP, I2PAK, D2PAK, DPAK, IPAK, TO-247 and Max247 packages. The fast switching and extremely low RDS(on) obtained via the MDmesh V yields elevated energy savings, fast switching, high electrical efficiency, more compact and superior high power density. As a result, the TO-220, TO-220FP, I2PAK, D2PAK and IPAK packages are ideal for more reliable long lasting SMPS, solar-converter, lighting and display applications, while the newly introduced TO-247 and Max247 packages are ideal for telecom high power servers for 3 kW PFC, as well as solar inverters.
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MDmesh V - best on-state resistance |
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MDmesh V technology in TO-220 competition benchmarks |
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MDmesh V - STP42N65M5 at the turn-off in a 2 kW boost PFC |
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MDmesh V - output capacitance losses |
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MDmesh V technology in TO-247 competition benchmarks |
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STW77N65M5 - efficiency comparison in a 3 kW PFC vs load variation at 230 V input voltage |
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STW77N65M5 - efficiency comparison in a 3 kW PFC vs input voltage at maximum load |
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| It is impossible to test at 185 V input voltage at max load because thermal runaway happens with the competitor device. |
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Datasheets and product selector |

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Worldwide best RsDS(on) * area in TO-220, TO-220FP, I2PAK, D2PAK, DPAK, IPAK, TO-247 and Max247 packages |

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Fast switching
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Higher VDSS rating |
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High dv/dt capability |
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Easy to drive |
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100% avalanche tested |
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Elevated energy savings |

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Higher power density |
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High electrical efficiency |
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More compact and reliable designs |
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SMPS (computers, very high efficiency adapters and telecom) |
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Lighting (electronic ballast, HID) |
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Displays (TVs, monitors) |
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Solar converters (grid connected DC-AC converters) |
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UPS |
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Welding |
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Motor control (High power mono-phase motors)
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