Stephen Smith
Table of Content
This page details the BC547 pinout, BC547 pin configuration, and BC547 pin diagram for the BC547 transistor. Engineers can access the BC547 datasheet for specs.
1. BC547 Pinout Diagram
View the BC547 pinout diagram for the BC547 npn transistor pinout.
BC547 pinout diagram pdf download (P2/P6)
2. BC547 Pin Configuration and Descripton
Table shows BC547 pin configuration and pin details for transistor BC547.
| Pin# | Pin Name | Type | Pinout Descripton |
|---|---|---|---|
| 1 | Collector | NPN | Current flows in, connects to load. |
| 2 | Base | NPN | Triggers switching, accepts low current. |
| 3 | Emitter | NPN | Current exits, usually to ground. |
3. BC547 Functional Block Diagram
Key points of BC547 pin diagram:
- NPN Structure: Shows collector, base, emitter.
- Current Flow: From collector to emitter.
- Base Control: Base triggers switching.
4. BC547 ON Semiconductor Overview
4.1 Descripton
The BC547 npn transistor is a general-purpose transistor for switching and amplification.
4.2 Overview
The BC547 transistor is an NPN Silicon Amplifier Transistor. Suits general-purpose tasks.
4.3 Features
- Collector-Emitter Voltage: 45V
- Collector Current: 100mA
- DC Current Gain: 110 to 800
- Power Dissipation: 500mW
- Transition Frequency: 300MHz
High gain suits BC547 pinout. Respect current limits.
5.4 Applications
Switching; Amplification; Signal processing
5. BC547 Package Dimension - TO-92-3
- TO-92 Package: Compact, three-lead.
- Pin Spacing: 1.27mm pitch.
- Dimensions: See datasheet.
6. BC547 Part Numbering System
| Part Number | hFE Range | Descripton |
|---|---|---|
| BC547A | 110-220 | Low gain |
| BC547B | 200-450 | Medium gain |
| BC547C | 420-800 | High gain |
7. BC547 FAQs and Tips
Q: What is the BC547 pinout?
A: Pin 1: Collector, Pin 2: Base, Pin 3: Emitter. See BC547 pinout diagram.
Q: Is BC547 npn or pnp?
A: It’s an BC547 npn transistor.
Q: What’s a BC547 equivalent?
A: 2N3904 or 2N2222 are common BC547 equivalent transistors.
Q: How does 2N3904 vs BC547 compare?
A: Similar specs, but 2N3904 has slightly different gain.
Q: How does 2N2222 vs BC547 compare?
A: 2N2222 handles higher current than BC547.
Q: How does BC546 vs BC547 compare?
A: BC546 has higher voltage rating.
Q: What’s a good BC547 alternative?
A: Try BC547 transistor equivalent like 2N3904.
Q: What is transistor BC547 used for?
A: Switching and amplification in low-power circuits.
Tips:
- Use a base resistor for BC547 pin out.
- Check hFE range for A, B, C variants.
- Avoid exceeding 100mA current.
- Ensure heat dissipation in TO-92.
- Verify BC547 npn transistor pinout before use.
- Refer to BC547 data sheet for specs.
