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| Country of Origin | China |
|---|---|
| Brand | onsemi |
| Height | 1.11mm |
| Length | 3.04mm |
| Model | SMMBT4401LT1G |
| Width | 1.4mm |
| Mount Type | Surface |
| Maximum Operating Temperature | 150°C |
| Package Type | SOT-23 |
| Pin Count | 3 |
| Maximum Collector Emitter Voltage Vceo | 40V |
| Minimum DC Current Gain hFE | 20 |
| Transistor Polarity | NPN |
| Maximum Emitter Base Voltage VEBO | 6V |
| Maximum Collector Base Voltage VCBO | 60V |
| Automotive Standard | AEC-Q101 |
| Maximum Power Dissipation Pd | 225mW |
| Maximum DC Collector Current Idc | 600mA |
| Transistor Configuration | Single |
| Maximum Transition Frequency ft | 100MHz |
The onsemi SMMBT4401LT1G NPN bipolar transistor is a compact, surface-mount semiconductor device designed for a broad range of linear and switching applications. Featuring a maximum collector current of 600mA and a collector-emitter voltage rating of 40V, this transistor meets the needs of engineers seeking reliable, low-power signal amplification and switching in dense circuit designs.
This device is housed in a miniature SOT-23 package, making it ideal for space-constrained printed circuit boards and automated surface-mount manufacturing processes. Its maximum power dissipation of 225mW and operation over temperatures up to 150°C allow it to perform effectively in commercial, industrial, and automotive environments where thermal stability is crucial.
The SMMBT4401LT1G delivers a minimum DC current gain (hFE) of 20, ensuring stable amplification characteristics in signal processing and control circuits. With a single NPN configuration, this component simplifies circuit integration, making it a versatile choice for discrete switching and amplification stages. Its automotive-grade AEC-Q101 compliance attests to the robustness and reliability required for modern vehicle electronics.
The transistor supports a maximum collector-base voltage of 60V and an emitter-base voltage of 6V, expanding its compatibility with various input and load conditions. Its transition frequency of 100MHz allows for use in high-speed signal pathways, while the device’s Pb-free construction aligns with current environmental regulations.
Standard use cases for this transistor include industrial control systems, consumer electronics, automotive engine modules, sensor interface circuitry, and other applications requiring efficient, small-signal switching and amplification under variable loads. Its thermal range and package dimensions (3.04mm length, 1.4mm width, 1.11mm height) further support use in rugged and high-density designs.
This SOT-23 surface mount part is supplied in reels, suitable for high-volume automated manufacturing. For in-depth parametric details, always refer to the official onsemi technical documentation for SMMBT4401LT1G.
Explore more devices from the Bipolar Transistors category or browse additional onsemi products on EnvMart for more solutions tailored to electronics design and manufacturing.
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