Description
The BC547 is a common NPN (Negative-Positive-Negative) bipolar junction transistor (BJT) used for small-signal amplification and switching in electronic circuits. It has a TO-92 plastic package, handles a maximum collector current of 100mA, and provides a high DC current gain (hFE) between 110 and 800. Its primary functions include amplifying signals, acting as a digital switch, driving LEDs and small loads, and acting as a general-purpose component in hobbyist and educational projects.
Key Characteristics
Type: NPN bipolar junction transistor (BJT).
Package: TO-92 plastic package.
Applications:
Amplification: Used in audio amplifiers and other signal amplification circuits.
Switching: Functions as an electronic switch to turn loads on or off, like LEDs or relays.
General Purpose: Suitable for various electronic projects and microcontroller interfacing.
Performance:
Collector Current (Ic): Maximum 100mA.
Current Gain (hFE): 110 to 800.
Frequency Range: Operates efficiently in low to moderate frequency ranges.
How it Works
1. NPN Type:
As an NPN transistor, it allows current to flow from the collector to the emitter when a small current is applied to the base.
2. Biasing:
A small current supplied to the base controls a larger current that flows between the collector and emitter, amplifying the signal.
3. Switching:
When the base current is removed, the transistor turns off (in the cut-off region), stopping current flow; when a sufficient base current is present, it turns on (in the saturation region), allowing current to flow.
BC547 NPN TO-92 Transistor Price in Pakistan
- Category: Discrete Semiconductor Products
- Family: Transistors (BJT) – Single
- Transistor Type: NPN
- Current – Collector (Ic) (Max): 100mA
- Voltage – Collector Emitter Breakdown (Max): 45V
- Vce Saturation (Max) @ Ib, Ic 600mV @ 5mA, 100mA
- Current – Collector Cutoff (Max) DC Current Gain (hFE) (Min) @ Ic, Vce 200 @ 2mA, 5V
- Power – Max 500mW
- Frequency – Transition 300MHz
- Mounting Type: Through Hole
- Package / Case TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Supplier Device Package TO-92-
Reviews
There are no reviews yet.