Description:
TIP31C NPN Power Transistor
The TIP31C is an NPN power transistor with a current gain of 50 and a maximum collector current of 3A.
This three-layer NPN transistor operates within a specific range, where the collector current (IC) is directly influenced by the base current (IB). A change in the base current causes a corresponding amplified change in the collector current, provided the collector-emitter voltage (VCE) remains constant.
Note: Product may vary from images shown in terms of brand name according to the availability.
Features:
- Low saturation voltage
- Simple drive requirements
- High safe operating area
- For low distortion complementary designs
- Easy to carry and handle
Specification:
- Collector-Emitter Voltage (VCEO): 100V
- Collector-Base Voltage (VCBO): 100V
- Emitter-Base Voltage (VEBO): 5V
- Collector-Emitter Saturation Voltage: 1.2V
- Collector Current (IC): 3A
- DC Current Gain (HFE): 10 to 50
- Power Dissipation (PD): 40W
- Minimum Operating Temperature: -65°C
- Maximum Operating Temperature: +150°C
- Minimum Operating Temperature: -65°C
- High switching speed
- HFE improved linearity
- Available in TO-220 Package
Application:
- DC motor speed control
- lighting systems
- PWM applications
- Relay drivers
- Switch-mode power supply
- Audio amplifiers
- Signal amplifiers
Package Includes:
- 5 x TIP31C NPN Transistor.
TIP31C NPN Power Transistor Overview
The TIP31C is a robust NPN power transistor in a TO-220 package, designed for medium‐power switching and amplification tasks. With a collector-emitter voltage rating of 100 V and a continuous collector current of up to 3 A, it’s ideal for driving motors, relays, and power regulation circuits.
Key Features of TIP31C NPN Power Transistor
- Collector-Emitter Voltage (VCEO): 100 V
- Maximum Collector Current (IC): 3 A continuous
- Power Dissipation (PD): 40 W with proper heatsinking
- Low saturation voltage (VCE(sat) ≈ 1.2 V) for efficient switching
- DC current gain (hFE): 10 to 50, ensuring good amplification
- High safe operating area and temperature range (–65 °C to +150 °C)
- Fast shipping from Zbotic: orders processed within 24 hours
Applications and Use Cases
- Motor driver stages in robotic and automation systems
- Relay and solenoid switching in industrial controls
- Audio amplifier output stages for low-distortion performance
- Linear voltage regulators and power supply regulation
- Pulse-width modulation (PWM) for speed and brightness control
- General-purpose switching in DIY electronics and prototypes
How to Use TIP31C NPN Power Transistor
Mount the TIP31C on a suitable heatsink to dissipate heat when operating near its power limit. Wire the collector to the positive supply through your load, the emitter to ground, and drive the base through a current-limiting resistor (value based on desired base current). Ensure proper orientation in the TO-220 socket and observe safe operating area limits for reliable performance.
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- Genuine Products: All items sourced from authorized distributors
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Frequently Asked Questions
What is the maximum collector-emitter voltage of the TIP31C?
The TIP31C is rated for a maximum collector-emitter voltage (VCEO) of 100 V, making it suitable for medium-voltage switching and amplification tasks.
Do I need a heatsink when using the TIP31C?
Yes. To safely dissipate up to 40 W of power, mounting the TIP31C on a heatsink is recommended, especially when operating at high currents or in continuous-duty applications.
What is the typical DC current gain (hFE) range?
The DC current gain of the TIP31C ranges from 10 to 50, allowing you to calculate the required base current. For example, to switch 3 A at hFE=30, a base current of approximately 100 mA is needed (neglecting saturation effects).
Technical Specifications
| Model | TIP31C |
|---|---|
| Package Quantity | 5 pcs |
| SKU | AI0386 |
| Weight | 0.0 kg |
| Availability | Out of Stock |
Applications & Use Cases
The TIP31C NPN Power Transistor (Pack of 5) is a versatile power transistors used across a wide range of applications including electronics projects, DIY builds, prototyping, and educational experiments.
Common use cases:
- Integrating into a custom electronics project
- Learning and experimenting with circuits
- Replacing or upgrading components in existing setups
This product is ideal for electronics enthusiasts, engineers, and students.
Technical Tip: Always verify voltage and current requirements before connecting to your circuit. Check datasheets for detailed specifications and pin configurations.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
Vipin Mukherjee (verified owner) –
Nice TIP31C NPN Power Transistor. Values are accurate. Good assortment for hobby projects.
Sarika Tiwari (verified owner) –
Love this TIP31C NPN Power Transistor. Great variety and all components are genuine. Highly recommended.
Parth Yadav (verified owner) –
Average TIP31C NPN Power Transistor. Most are good quality but found a few out-of-spec pieces.
Yash Deshpande (verified owner) –
Nice TIP31C NPN Power Transistor. Values are accurate. Good assortment for hobby projects.
Uday Modi –
Decent TIP31C NPN Power Transistor. Works well. Some tolerance variation but within acceptable limits.
Anushka Vohra (verified owner) –
Superb TIP31C NPN Power Transistor! Using these in all my circuit designs. Never had a failure.
Aisha Batra –
This TIP31C NPN Power Transistor is essential for any electronics lab. Good quality components.
Ojas Batra (verified owner) –
Perfect TIP31C NPN Power Transistor for prototyping and production. Consistent quality.
Shubham Arora (verified owner) –
Superb TIP31C NPN Power Transistor! Using these in all my circuit designs. Never had a failure.
Raghav Tiwari (verified owner) –
Excellent TIP31C NPN Power Transistor! Values are accurate and quality is great. Perfect for my projects.
Eshan Chauhan (verified owner) –
Very satisfied. My college lab is stocked with these. Excellent value from Zbotic.
Ananya Kumar (verified owner) –
Good TIP31C NPN Power Transistor. Quality is reliable. Packaging keeps components organized.
Mahesh Chauhan (verified owner) –
Very satisfied. My college lab is stocked with these. Excellent value from Zbotic.
Mahesh Bhatt (verified owner) –
Great quality TIP31C NPN Power Transistor. All values are within tolerance. Very reliable.
Sakshi Negi (verified owner) –
Superb TIP31C NPN Power Transistor! Using these in all my circuit designs. Never had a failure.
Nikita Bose (verified owner) –
Superb TIP31C NPN Power Transistor! Using these in all my circuit designs. Never had a failure.
Shivam Bhat (verified owner) –
Decent TIP31C NPN Power Transistor. Works well. Some tolerance variation but within acceptable limits.
Kapil Hegde –
Excellent TIP31C NPN Power Transistor! Values are accurate and quality is great. Perfect for my projects.
Kavya Singh (verified owner) –
Nice TIP31C NPN Power Transistor. Values are accurate. Good assortment for hobby projects.
Rishabh Iyer (verified owner) –
Average TIP31C NPN Power Transistor. Most are good quality but found a few out-of-spec pieces.
Ayush Malhotra (verified owner) –
Average TIP31C NPN Power Transistor. Most are good quality but found a few out-of-spec pieces.
Farhan Arora (verified owner) –
Great quality TIP31C NPN Power Transistor. All values are within tolerance. Very reliable.
Nikita Panchal (verified owner) –
Nice TIP31C NPN Power Transistor. Values are accurate. Good assortment for hobby projects.