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AUIRFR4104-VB Product details
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Imagine: You are designing a high-power-density, high-current power supply module. The input side needs to withstand surge currents of up to 85A, while keeping conduction losses to a minimum within the compact TO252 package. Ordinary MOS tubes either have insufficient voltage tolerance or high on-resistance, leading to increasingly larger heatsinks. The VBsemi AUIRFR4104-VB is designed for this—it integrates 40V withstand voltage, 85A current capability, and an on-resistance of only 6mΩ (at 4.5V drive) into the reliable TO252 package, allowing high-current power conversion designs to no longer worry about heat dissipation and space.
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Product parameter：
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| TO252 | Single-N | 40V | 2.5V | 85A | 6(mΩ) | 5(mΩ) | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| TO252 | Single-N | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| TO252 | Single-N | 40V | 2.5V | 85A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| TO252 | Single-N | 40V | 2.5V | 85A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| TO252 | Single-N |
- Voltage rating 40V, covering the vast majority of low-voltage high-current applications
- Gate drive range ±20V, compatible with 4.5V to 10V logic drive
- Threshold voltage 2.5V, stable turn-on with standard logic levels
- On-Resistance 6mΩ (4.5V drive) / 5mΩ (10V drive), negligible loss
- Maximum current 85A, impressive power handling capability even in TO252 package
- Trench technology, optimizing switching performance and conduction characteristics
- Gate drive range ±20V, compatible with 4.5V to 10V logic drive
- Threshold voltage 2.5V, stable turn-on with standard logic levels
- On-Resistance 6mΩ (4.5V drive) / 5mΩ (10V drive), negligible loss
- Maximum current 85A, impressive power handling capability even in TO252 package
- Trench technology, optimizing switching performance and conduction characteristics
Domain and module applications：
- High-Power DC-DC Converter / Synchronous Rectification – Replaces traditional Schottky diodes, significantly reducing voltage drop on high-current output paths, improving power conversion efficiency.
- Motor Drive Module – Used in power tools, robots, or drone ESCs, leveraging 85A current capability and low on-resistance to reduce driver heat generation and extend continuous operation time.
- Automotive-Grade Power Distribution Unit – 40V withstand voltage easily handles inductive load surges in 12V/24V automotive systems, providing reliable on/off control for ECUs, lights, or pump loads.
- Lithium Battery Protection Board / Electric Bicycle Controller – Quickly cuts off the circuit during overcurrent or short circuit; low internal resistance ensures no significant temperature rise during high-rate charge/discharge.
- Server Power Supply / Communication Base Station Power Supply – Acts as the main switch or load switch on the 12V output bus, meeting high current density and stringent thermal design requirements.
- Power Inverter Front-End – Used in the inverter boost circuit of low-voltage energy storage systems, providing a low-loss power path to improve overall system efficiency.
- High-Power LED Driver Power Supply – Serves as a constant current switch, precisely controlling the current of each LED channel, achieving higher overall luminaire efficacy with low conduction losses. In a nutshell: The AUIRFR4104-VB is not an ordinary MOS transistor; it is the "low-resistance channel" and "power heart" of your low-voltage, high-current power design, allowing 40V withstand voltage and 85A current to dance perfectly within the TO252 package.
* Please note: the above is only an example application scenario, the specific application depends on the requirements and conditions of the system design. When using this device, consult its data sheet for detailed technical specifications and features
Technical support：
* If you have any questions about the product, please fill out the form to submit, we will reply you within 24 hours
