規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| 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 | 160 @ 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 |
概述
Description
The BC817-25LT1G is a general-purpose NPN bipolar junction transistor (BJT) in a SOT-23 package, designed for low-power amplification and switching applications. Key features include:
- Current Rating: 500mA collector current (IC)
- Voltage Rating: 45V collector-emitter voltage (VCEO)
- Gain (hFE): 160–400 (at 2mA IC)
- Low Saturation Voltage: Optimized for efficient switching
- Package: SOT-23 (small, surface-mount)
Common uses include signal amplification, load switching, and driver circuits in consumer electronics, IoT devices, and embedded systems. Its compact size and performance make it suitable for space-constrained designs.
Alternatives: BC807-25 (PNP complement), BC817-40 (higher gain variant).
For detailed specs, refer to the manufacturer’s datasheet.
- Current Rating: 500mA collector current (IC)
- Voltage Rating: 45V collector-emitter voltage (VCEO)
- Gain (hFE): 160–400 (at 2mA IC)
- Low Saturation Voltage: Optimized for efficient switching
- Package: SOT-23 (small, surface-mount)
Common uses include signal amplification, load switching, and driver circuits in consumer electronics, IoT devices, and embedded systems. Its compact size and performance make it suitable for space-constrained designs.
Alternatives: BC807-25 (PNP complement), BC817-40 (higher gain variant).
For detailed specs, refer to the manufacturer’s datasheet.
Equivalent
Equivalent products to the BC817-25LT1G (NPN transistor, 45V, 500mA, SOT-23) include:
- MMBT5551LT1G (higher voltage)
- 2N3904 (TO-92 package)
- BC807-25LT1G (PNP complement)
- MMBT4401LT1G (similar specs)
- KST2222A (SOT-23 alternative)
Check datasheets for exact parameter matching.
- MMBT5551LT1G (higher voltage)
- 2N3904 (TO-92 package)
- BC807-25LT1G (PNP complement)
- MMBT4401LT1G (similar specs)
- KST2222A (SOT-23 alternative)
Check datasheets for exact parameter matching.
Features
The BC817-25LT1G 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): 160–400 (at IC = 2mA, VCE = 5V).
- Low Saturation Voltage: VCE(sat) ~0.7V (IC = 500mA, IB = 50mA).
- Power Dissipation: 250mW (Ta = 25°C).
- Package: SOT-23 (small surface-mount).
- Applications: Switching, amplification, LED drivers, and load control.
Compact and efficient, it’s ideal for space-constrained designs.
- Current Rating: 500mA collector current (IC).
- Voltage Rating: 45V collector-emitter voltage (VCEO).
- Gain (hFE): 160–400 (at IC = 2mA, VCE = 5V).
- Low Saturation Voltage: VCE(sat) ~0.7V (IC = 500mA, IB = 50mA).
- Power Dissipation: 250mW (Ta = 25°C).
- Package: SOT-23 (small surface-mount).
- Applications: Switching, amplification, LED drivers, and load control.
Compact and efficient, it’s ideal for space-constrained designs.
Pinout
The BC817-25LT1G 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 the transistor's switching/amplification.
3. Collector (C) – Connects to the load or supply.
Key Features:
- VCEO: 45V
- IC (max): 500mA
- hFE (gain): 160–400 (at IC = 2mA)
- Low-power switching & amplification in small-signal applications.
Common uses include driver circuits, amplifiers, and logic-level switching.
1. Emitter (E) – Connected to ground or common reference.
2. Base (B) – Controls the transistor's switching/amplification.
3. Collector (C) – Connects to the load or supply.
Key Features:
- VCEO: 45V
- IC (max): 500mA
- hFE (gain): 160–400 (at IC = 2mA)
- Low-power switching & amplification in small-signal applications.
Common uses include driver circuits, amplifiers, and logic-level switching.
Application
The BC817-25LT1G, a general-purpose NPN transistor, is commonly used in:
- Switching circuits (relays, LEDs, small motors)
- Amplification (audio, signal processing)
- Consumer electronics (TVs, smartphones, IoT devices)
- Automotive systems (sensors, lighting controls)
- Power management (voltage regulators, inverters)
Its low voltage (45V max) and moderate current (500mA) make it ideal for low-power applications in compact designs.
- Switching circuits (relays, LEDs, small motors)
- Amplification (audio, signal processing)
- Consumer electronics (TVs, smartphones, IoT devices)
- Automotive systems (sensors, lighting controls)
- Power management (voltage regulators, inverters)
Its low voltage (45V max) and moderate current (500mA) make it ideal for low-power applications in compact designs.
Package
The BC817-25LT1G is a NPN transistor in a SOT-23 surface-mount package. It has three pins and is compact, suitable for high-density PCB designs. The package is lead-free and RoHS-compliant, ideal for general-purpose amplification and switching applications.
