規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Series | Automotive, AEC-Q101 |
| Part Status | Active |
| Transistor Type | NPN |
| Current - Collector(Ic)(Max) | 200 mA |
| Voltage - Collector Emitter Breakdown(Max) | 40 V |
| Vce Saturation(Max) @ Ib Ic | 300mV @ 5mA, 50mA |
| DC Current Gain(h FE)(Min) @ Ic Vce | 100 @ 10mA, 1V |
| Power - Max | 300 mW |
| Frequency - Transition | 300MHz |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
概述
Description
The SMMBT3904LT1G is a general-purpose NPN bipolar junction transistor (BJT) in a small SOT-23 surface-mount package. Key features include:
- Voltage/Current Ratings: 40V collector-emitter voltage (V_CEO), 200mA continuous collector current (I_C).
- Gain (h_FE): Typically 100–300 at 10mA.
- Low Power: Suitable for switching and amplification in low-power circuits.
- Package: Compact SOT-23 (3-pin), ideal for space-constrained designs.
Common applications include signal amplification, switching loads, and digital logic circuits. It’s a cost-effective, widely used alternative to the 2N3904 in surface-mount designs.
For detailed specs, refer to the datasheet from manufacturers like ON Semiconductor.
- Voltage/Current Ratings: 40V collector-emitter voltage (V_CEO), 200mA continuous collector current (I_C).
- Gain (h_FE): Typically 100–300 at 10mA.
- Low Power: Suitable for switching and amplification in low-power circuits.
- Package: Compact SOT-23 (3-pin), ideal for space-constrained designs.
Common applications include signal amplification, switching loads, and digital logic circuits. It’s a cost-effective, widely used alternative to the 2N3904 in surface-mount designs.
For detailed specs, refer to the datasheet from manufacturers like ON Semiconductor.
Pinout
The SMMBT3904LT1G is a NPN bipolar junction transistor (BJT) in a SOT-23 package with 3 pins.
Pin Functions:
1. Emitter (E) – Connected to ground/common.
2. Base (B) – Controls transistor switching/amplification.
3. Collector (C) – Connects to the load/supply.
Key Features:
- VCEO: 40V
- IC (max): 200mA
- hFE (gain): 100–300
- Low-power switching & amplification
Compact and widely used in signal amplification, switching circuits, and driver applications.
Pin Functions:
1. Emitter (E) – Connected to ground/common.
2. Base (B) – Controls transistor switching/amplification.
3. Collector (C) – Connects to the load/supply.
Key Features:
- VCEO: 40V
- IC (max): 200mA
- hFE (gain): 100–300
- Low-power switching & amplification
Compact and widely used in signal amplification, switching circuits, and driver applications.
Manufacturer
The SMMBT3904LT1G is manufactured by ON Semiconductor, now known as onsemi after rebranding in 2021.
onsemi is a global semiconductor company specializing in power management, analog, and sensor solutions. It serves industries like automotive, industrial, and consumer electronics, focusing on energy-efficient technologies. The company is headquartered in Phoenix, Arizona, and is a key player in the semiconductor market.
The SMMBT3904LT1G is a general-purpose NPN bipolar junction transistor (BJT) in a small SOT-23 package, commonly used for switching and amplification.
onsemi is a global semiconductor company specializing in power management, analog, and sensor solutions. It serves industries like automotive, industrial, and consumer electronics, focusing on energy-efficient technologies. The company is headquartered in Phoenix, Arizona, and is a key player in the semiconductor market.
The SMMBT3904LT1G is a general-purpose NPN bipolar junction transistor (BJT) in a small SOT-23 package, commonly used for switching and amplification.
Application
The SMMBT3904LT1G, an NPN bipolar junction transistor (BJT), is commonly used in:
1. Switching Circuits – Fast switching for relays, LEDs, and small loads.
2. Amplification – Small-signal amplification in audio, RF, and sensor circuits.
3. Logic Inverters – Basic digital logic applications.
4. Signal Processing – Buffering and waveform shaping.
5. Consumer Electronics – Found in devices like smartphones, TVs, and IoT modules.
Its compact SOT-23 package and low power handling make it ideal for space-constrained, low-voltage designs.
1. Switching Circuits – Fast switching for relays, LEDs, and small loads.
2. Amplification – Small-signal amplification in audio, RF, and sensor circuits.
3. Logic Inverters – Basic digital logic applications.
4. Signal Processing – Buffering and waveform shaping.
5. Consumer Electronics – Found in devices like smartphones, TVs, and IoT modules.
Its compact SOT-23 package and low power handling make it ideal for space-constrained, low-voltage designs.
Package
The SMMBT3904LT1G is a NPN bipolar transistor in a SOT-23 surface-mount package. This compact 3-pin package is widely used for general-purpose amplification and switching applications. It measures approximately 2.9mm x 1.3mm x 0.95mm, making it suitable for space-constrained designs. The SOT-23 package is industry-standard, offering good thermal and electrical performance for low-power applications.
