Dopoochai Set 3mp4001 May 2026

| Original Part | Replacement Notes | | :--- | :--- | | IRFZ44N | Vds is 40V vs 55V (check your voltage first). Rds(on) is 1.8mΩ vs 17.5mΩ – huge improvement. | | IRFB4110 | Very close match. 3MP4001 has slightly lower gate charge, so switching losses are lower. | | Toshiba TK150E04 | Identical specs. Direct drop-in. | | STP120N4F6 | Superficial. The 3MP4001 has better ESD protection. |

While it may not carry the branding of a legacy semiconductor giant, Dopoochai has carved out a reliable niche by focusing on what engineers actually need: affordable, pre-matched power MOSFETs that work out of the box. Whether you're building a 5kW e-bike controller, a server power supply, or a battery spot welder, the 3MP4001 set deserves a spot on your BOM. dopoochai set 3mp4001

But what exactly is the Dopoochai Set 3MP4001? Is it a single component, a toolkit, or a system? This article provides an exhaustive breakdown of the 3MP4001 set manufactured by Dopoochai, exploring its technical specifications, applications, compatibility, and why it is becoming a go-to solution for professionals. The term "Dopoochai" refers to a specialized electronics manufacturer known for producing high-quality semiconductor components, sensor modules, and repair kits. The Dopoochai Set 3MP4001 is not a single integrated circuit; rather, it is a calibrated matched pair or quad-set of power management components , typically centered around a high-efficiency MOSFET or voltage regulator array. | Original Part | Replacement Notes | |

In the rapidly evolving world of industrial automation, robotics, and electronic repair, component sourcing can often feel like navigating a labyrinth. Engineers, hobbyists, and procurement specialists constantly search for reliable, cost-effective alternatives to mainstream branded components. One part number that has been generating significant buzz in niche technical communities and on major B2B platforms is the Dopoochai Set 3MP4001 . 3MP4001 has slightly lower gate charge, so switching

| Parameter | Typical Value | Unit | | :--- | :--- | :--- | | | 40 | V | | Continuous Drain Current (Id) | 120 | A | | Pulsed Drain Current (Idm) | 480 | A | | Gate-Source Voltage (Vgs) | ±20 | V | | On-Resistance (Rds(on)) | 1.8 mΩ (max @ Vgs=10V) | mΩ | | Power Dissipation (Pd) | 150 | W | | Operating Junction Temp | -55 to +175 | °C | | Gate Charge (Qg) | 75 (typ) | nC |

The "3MP" prefix often denotes technology, implying a low gate charge combined with ultra-low on-resistance. The "4001" suffix is likely a factory code indicating the specific trench-gate process used.