STP105N3LL Overview
The STP105N3LL is a high-performance N-channel MOSFET designed for efficient switching and power management in industrial and consumer electronics. Featuring low on-resistance and fast switching capabilities, this transistor supports optimized power conversion and thermal performance. Its compact package and robust electrical characteristics make it ideal for applications requiring high current handling and low conduction losses. Engineers and sourcing specialists looking for reliable, cost-effective power MOSFETs will find the STP105N3LL a suitable choice for enhancing system efficiency and durability. For detailed technical data, visit the IC Manufacturer.
STP105N3LL Technical Specifications
| Parameter | Value | Unit | 
|---|---|---|
| Drain-Source Voltage (Vds) | 30 | V | 
| Continuous Drain Current (Id) @ 25??C | 105 | A | 
| Gate Threshold Voltage (Vgs(th)) | 1 – 3 | V | 
| Drain-Source On-Resistance (Rds(on)) | 3.7 | m?? | 
| Total Gate Charge (Qg) | 31 | nC | 
| Gate-Source Voltage (Vgs) max | ??20 | V | 
| Power Dissipation (Pd) | 100 | W | 
| Operating Junction Temperature | -55 to 150 | ??C | 
| Package Type | TO-220 | – | 
STP105N3LL Key Features
- Low On-Resistance: Minimizes conduction losses to improve efficiency in power switching applications.
 - High Continuous Drain Current: Supports up to 105 A, enabling robust handling of high current loads commonly required in motor drives and power supplies.
 - Fast Switching Speed: Reduces switching losses and enhances performance in high-frequency operation environments.
 - Wide Operating Temperature Range: Ensures reliable operation from -55??C to 150??C, suitable for harsh industrial conditions.
 - TO-220 Package: Provides ease of mounting and efficient thermal dissipation critical for power applications.
 
Typical Applications
- Power management in DC-DC converters and switching regulators where efficient switching and thermal robustness are critical.
 - Motor control circuits requiring high current capability and fast switching to improve dynamic response.
 - Load switching in industrial automation systems demanding durable and reliable MOSFET performance under continuous operation.
 - Power supplies for consumer electronics and industrial equipment where compact size and low losses are important.
 
STP105N3LL Advantages vs Typical Alternatives
This MOSFET offers superior conduction efficiency due to its low on-resistance and high current capacity compared to standard discrete transistors. Its fast switching characteristics reduce overall power loss, making it more energy-efficient in demanding applications. The rugged TO-220 package ensures enhanced thermal management and reliability, positioning this device as a preferred choice for engineers seeking optimal performance and long-term stability over typical alternatives.
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STP105N3LL Brand Info
The STP105N3LL is manufactured by STMicroelectronics, a global leader in semiconductor technology. Known for their high-quality power transistors, STMicroelectronics provides this device as part of their extensive MOSFET portfolio aimed at power management solutions. The brand emphasizes innovation, reliability, and performance, making this MOSFET a trusted component in industrial and consumer electronics worldwide.
FAQ
What is the maximum voltage rating of the STP105N3LL?
The maximum drain-to-source voltage (Vds) rating for this MOSFET is 30 volts. This specifies the highest voltage the transistor can withstand between drain and source terminals without breakdown, ensuring safe operation within this limit.
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How does the low on-resistance benefit my design?
Lower on-resistance reduces conduction losses when the MOSFET is switched on, improving energy efficiency and reducing heat generation. This leads to better overall system performance and potentially smaller heat dissipation requirements.






