Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| TransistorType | NPN |
| Current-Collector(Ic)(Max) | 500 mA |
| Voltage-CollectorEmitterBreakdown(Max) | 45 V |
| VceSaturation(Max)@IbIc | 700mV @ 50mA, 500mA |
| Current-CollectorCutoff(Max) | 100nA (ICBO) |
| DCCurrentGain(hFE)(Min)@IcVce | 250 @ 100mA, 1V |
| Power-Max | 300 mW |
| Frequency-Transition | 100MHz |
| OperatingTemperature | -65°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | TO-236-3, SC-59, SOT-23-3 |
Tổng quan
Description
The BC817-40LT3G is a general-purpose NPN bipolar junction transistor (BJT) in a SOT-23 surface-mount package. Key features:
- Current Rating: 500mA (max collector current).
- Voltage Rating: 45V (max collector-emitter voltage).
- Gain (hFE): 250–600 (at 2mA, 5V).
- Low Saturation Voltage: Ideal for switching and amplification.
- Packaging: Tape and reel for automated assembly.
Applications:
- Signal amplification in audio/analog circuits.
- Switching loads in digital circuits (e.g., driving LEDs, relays).
- Portable electronics due to its compact size.
Advantages:
- High current gain, low power loss, and RoHS compliance.
Alternatives: BC807-40 (PNP counterpart).
A cost-effective, reliable choice for low-power designs. Check datasheets for detailed specs.
- Current Rating: 500mA (max collector current).
- Voltage Rating: 45V (max collector-emitter voltage).
- Gain (hFE): 250–600 (at 2mA, 5V).
- Low Saturation Voltage: Ideal for switching and amplification.
- Packaging: Tape and reel for automated assembly.
Applications:
- Signal amplification in audio/analog circuits.
- Switching loads in digital circuits (e.g., driving LEDs, relays).
- Portable electronics due to its compact size.
Advantages:
- High current gain, low power loss, and RoHS compliance.
Alternatives: BC807-40 (PNP counterpart).
A cost-effective, reliable choice for low-power designs. Check datasheets for detailed specs.
Equivalent
Equivalent products to the BC817-40LT3G (NPN transistor, SOT-23, 45V, 500mA) include:
- MMBT4401LT1G (On Semiconductor)
- 2N3904 (TO-92, but similar specs)
- BC847BLT1G (SOT-23, similar characteristics)
- PMBT4401 (NXP)
- KST4401MTF (Fairchild)
Check datasheets for exact parameter matching in your application.
- MMBT4401LT1G (On Semiconductor)
- 2N3904 (TO-92, but similar specs)
- BC847BLT1G (SOT-23, similar characteristics)
- PMBT4401 (NXP)
- KST4401MTF (Fairchild)
Check datasheets for exact parameter matching in your application.
Features
The BC817-40LT3G is a general-purpose NPN transistor in a SOT-23 package. Key features:
- Current Rating: 500mA collector current (IC).
- Voltage Rating: 45V collector-emitter voltage (VCEO).
- Gain (hFE): High DC current gain (250–600 at IC = 2mA).
- Power Dissipation: 300mW (total).
- Package: SOT-23 (small, surface-mount).
- Speed: Fast switching (transition frequency fT = 100MHz).
- Applications: Amplification, switching in low-power circuits, and driver stages.
Ideal for compact, low-voltage designs.
- Current Rating: 500mA collector current (IC).
- Voltage Rating: 45V collector-emitter voltage (VCEO).
- Gain (hFE): High DC current gain (250–600 at IC = 2mA).
- Power Dissipation: 300mW (total).
- Package: SOT-23 (small, surface-mount).
- Speed: Fast switching (transition frequency fT = 100MHz).
- Applications: Amplification, switching in low-power circuits, and driver stages.
Ideal for compact, low-voltage designs.
Pinout
The BC817-40LT3G is a NPN bipolar junction transistor (BJT) in a SOT-23 package with 3 pins:
1. Emitter (E) – Connected to ground or common reference.
2. Base (B) – Controls transistor switching/amplification.
3. Collector (C) – Connects to the load or supply.
Key Features:
- VCEO: 45V
- IC: 500mA (max)
- hFE (gain): 250–600 (@ 2mA)
- Low-power switching & amplification in compact circuits.
Used in general-purpose amplification, switching, and driver applications.
1. Emitter (E) – Connected to ground or common reference.
2. Base (B) – Controls transistor switching/amplification.
3. Collector (C) – Connects to the load or supply.
Key Features:
- VCEO: 45V
- IC: 500mA (max)
- hFE (gain): 250–600 (@ 2mA)
- Low-power switching & amplification in compact circuits.
Used in general-purpose amplification, switching, and driver applications.
Manufacturer
The BC817-40LT3G 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 technologies. It serves industries like automotive, industrial, and consumer electronics, focusing on energy-efficient solutions.
The BC817-40LT3G is a general-purpose NPN transistor in a small SOT-23 package, commonly used for switching and amplification in low-power circuits.
onsemi is a global semiconductor company specializing in power management, analog, and sensor technologies. It serves industries like automotive, industrial, and consumer electronics, focusing on energy-efficient solutions.
The BC817-40LT3G is a general-purpose NPN transistor in a small SOT-23 package, commonly used for switching and amplification in low-power circuits.
Application
The BC817-40LT3G is a general-purpose NPN transistor commonly used in:
1. Switching Circuits – For relays, LEDs, and small loads.
2. Amplification – Low-power signal amplification in audio and RF stages.
3. Consumer Electronics – TVs, smartphones, and IoT devices.
4. Automotive Systems – Sensors and control modules (non-critical).
5. Industrial Control – Logic interfaces and driver circuits.
Its 40V/500mA rating and SOT-23 package make it ideal for compact, low-power applications.
1. Switching Circuits – For relays, LEDs, and small loads.
2. Amplification – Low-power signal amplification in audio and RF stages.
3. Consumer Electronics – TVs, smartphones, and IoT devices.
4. Automotive Systems – Sensors and control modules (non-critical).
5. Industrial Control – Logic interfaces and driver circuits.
Its 40V/500mA rating and SOT-23 package make it ideal for compact, low-power applications.
Package
The BC817-40LT3G is a NPN transistor in a SOT-23 surface-mount package. It has three pins and is commonly used for general-purpose amplification and switching applications. The compact SOT-23 package is suitable for space-constrained PCB designs.
