Description
The 2N4923 is a robust NPN power transistor designed for medium-current, medium-voltage switching and amplification applications. With a collector current rating of up to 2A and a collector-emitter voltage of 80V, this transistor is ideal for motor drivers, relay controls, power regulation circuits, and other general-purpose electronics requiring higher current handling.
Housed in a TO-225 (also known as TO-126) package, the 2N4923 is suitable for heat-sensitive designs, thanks to its enhanced power dissipation capability when properly heatsinked.
Key Features
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Transistor Type: NPN BJT
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Collector Current: Up to 2A
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Collector-Emitter Voltage: 80V
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Power dissipation: 800mW (without heatsink), up to 15W with heatsink
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TO-225/TO-126 package with mounting hole for thermal management
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Ideal for switching loads, amplifying signals, and power control
Specifications
| Parameter | Value |
|---|---|
| Transistor Type | NPN |
| Collector-Emitter Voltage (V<sub>CE</sub>) | 80V |
| Collector-Base Voltage (V<sub>CB</sub>) | 100V |
| Emitter-Base Voltage (V<sub>EB</sub>) | 5V |
| Collector Current (I<sub>C</sub>) | 2A |
| DC Current Gain (h<sub>FE</sub>) | 40–160 |
| Total Power Dissipation (P<sub>D</sub>) | Up to 15W with heatsink |
| Package Type | TO-225 / TO-126 |
| Applications | Power switching, motor control, audio amps, power regulation |
Package Includes
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1 × 2N4923 NPN General Purpose Power Transistor
Specification
General
| WeightWeight | 0,00 g |
|---|---|
| Product Type | Transistor |
| Model | 2N4923 |
| Transistor Type | NPN |
| Category | General Purpose |
| Collector-Emitter Voltage Vce (V) | 100 |
| Collector-Base Voltage Vcb (V) | 100 |
| Emitter-Base Voltage Veb (V) | 5 |
| Collector Current Ic (A) | 1 |
| Power Dissipation (W) | 20 (with proper heat sink) |
| Gain (hFE) | 40 – 140 (typical) |
| Package Type | TO-220 |
| Length (mm) | 15 |
| Width (mm) | 10 |
| Height (mm) | 5 |
| Weight (g) | 2 |
| Mounting Type | Through Hole (THT) |
| Pin Count | 3 |
| Application | Power Switching, Amplifiers, Voltage Regulation, DIY Electronics |

