Description
The TIP31 is a high-power NPN bipolar junction transistor (BJT) designed for medium to high current switching and amplification applications. With its high collector-emitter voltage rating and robust current handling capability, it is widely used in power supplies, motor drivers, audio amplifiers, and general-purpose power control circuits.
TIP31 ট্রানজিস্টরটি পাওয়ার ইলেকট্রনিক্স ও রোবোটিক্স প্রজেক্টে বহুল ব্যবহৃত। এটি উচ্চ ভোল্টেজ এবং কারেন্ট সামলাতে পারে, যা একে Arduino, DIY এবং ইন্ডাস্ট্রিয়াল অ্যাপ্লিকেশনের জন্য উপযুক্ত করে তোলে।
⭐ Key Features
NPN bipolar power transistor
High collector-emitter voltage (100V)
Can handle up to 3A collector current
Suitable for switching and amplification
TO-220 package for easy heat-sink mounting
Leaded & RoHS-compatible process
Reliable performance for power circuits
🔧 Electrical Specifications
| Parameter | Value |
|---|---|
| Transistor Type | Bipolar Junction Transistor (BJT) |
| Polarity | NPN |
| Collector-Emitter Voltage (Vceo) | 100V |
| Collector Current (Ic) | 3A |
| DC Current Gain (hFE Min) | 10 |
| DC Current Gain (hFE Max) | 50 |
| Collector Current @ hFE | 3 µA |
| Package Type | TO-220 |
| Leaded Process | Yes |
🧠 Why Choose TIP31?
Ideal for relay driving, motor control & power switching
Works well in linear & saturation regions
Easy to interface with microcontrollers via base resistor
Cost-effective solution for power electronics
Easily available replacement transistor
🛠 Applications
DC motor drivers
Relay switching circuits
Audio amplifier stages
Power supply regulation
Arduino & microcontroller projects
Educational & training kits
📦 Package Includes
1 × TIP31 NPN Power Transistor
⚠️ Important Notes
Use base resistor when driving from logic pins
Heat sink recommended for high current operation
Not a MOSFET – this is a BJT transistor
❓ Frequently Asked Questions (SEO Boost)
Q1: Is TIP31 an NPN or PNP transistor?
✅ TIP31 is an NPN bipolar transistor.
Q2: Can TIP31 drive a DC motor?
✅ Yes, it can drive small to medium DC motors with proper heat sinking.
Q3: Can I use TIP31 with Arduino?
✅ Yes, but always use a base resistor and external power supply for the load.
Q4: What is the maximum current rating?
✅ Maximum collector current is 3A.
Q5: Is TIP31 a MOSFET?
❌ No, TIP31 is a BJT, not a MOSFET.
Meta Title:
TIP31 NPN Power Transistor 100V 3A – Buy in Bangladesh
Meta Description:
Buy TIP31 NPN bipolar power transistor with 100V Vceo and 3A collector current. Ideal for motor drivers, relays & power circuits.
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