Specifications
| Attribute | Value |
| Package / Case | Tube |
| Part Status | Obsolete |
| Transistor Type | NPN |
| Current - Collector(Ic)(Max) | 3 A |
| Voltage - Collector Emitter Breakdown(Max) | 100 V |
| Vce Saturation(Max) @ Ib Ic | 1.2V @ 375mA, 3A |
| Current - Collector Cutoff(Max) | 300µA |
| DC Current Gain(h FE)(Min) @ Ic Vce | 10 @ 3A, 4V |
| Power - Max | 2 W |
| Frequency - Transition | 3MHz |
| Operating Temperature | -65°C ~ 150°C (TJ) |
| Mounting Type | Through Hole |
Overview
Equivalent
The TIP31C (NPN power transistor) has several equivalent or similar alternatives, including:
- TIP41C (higher current rating)
- 2N3055 (classic NPN power transistor)
- BD139 (lower power but similar characteristics)
- MJE3055T (direct replacement in many cases)
- KSE340 (Korean equivalent)
These can serve as substitutes depending on voltage, current, and power requirements. Always check datasheets for exact compatibility.
- TIP41C (higher current rating)
- 2N3055 (classic NPN power transistor)
- BD139 (lower power but similar characteristics)
- MJE3055T (direct replacement in many cases)
- KSE340 (Korean equivalent)
These can serve as substitutes depending on voltage, current, and power requirements. Always check datasheets for exact compatibility.
Features
The TIP31C is an NPN power transistor with the following key features:
- Voltage Rating: 100V collector-emitter (VCEO), 40V base-emitter (VBEO).
- Current Handling: 3A continuous collector current (IC).
- Power Dissipation: 40W (with heatsink).
- Gain (hFE): 10-50 at 3A, ensuring moderate amplification.
- Package: TO-220, suitable for easy mounting on heatsinks.
- Applications: Power amplification, switching (e.g., motor control, power supplies).
Robust and cost-effective, it’s ideal for medium-power circuits. Always use a heatsink for high-current applications.
- Voltage Rating: 100V collector-emitter (VCEO), 40V base-emitter (VBEO).
- Current Handling: 3A continuous collector current (IC).
- Power Dissipation: 40W (with heatsink).
- Gain (hFE): 10-50 at 3A, ensuring moderate amplification.
- Package: TO-220, suitable for easy mounting on heatsinks.
- Applications: Power amplification, switching (e.g., motor control, power supplies).
Robust and cost-effective, it’s ideal for medium-power circuits. Always use a heatsink for high-current applications.
Application
The TIP31C is a general-purpose NPN power transistor commonly used in:
1. Amplification – Audio and signal amplification in low-power circuits.
2. Switching – Driving relays, motors, and LEDs in electronic controls.
3. Power Regulation – Voltage and current regulation in power supplies.
4. Audio Systems – Output stages in amplifiers and audio devices.
5. Automotive Electronics – Switching and control applications in vehicles.
Its high current (3A) and voltage (100V) handling make it suitable for medium-power applications.
1. Amplification – Audio and signal amplification in low-power circuits.
2. Switching – Driving relays, motors, and LEDs in electronic controls.
3. Power Regulation – Voltage and current regulation in power supplies.
4. Audio Systems – Output stages in amplifiers and audio devices.
5. Automotive Electronics – Switching and control applications in vehicles.
Its high current (3A) and voltage (100V) handling make it suitable for medium-power applications.
Package
The TIP31C is a NPN power transistor typically available in the TO-220 package. This package is widely used for power devices due to its thermal efficiency and ease of mounting with a heatsink. The TO-220 has three leads (collector, base, emitter) and a metal tab for heat dissipation. It’s suitable for medium-power applications like amplifiers and regulators.
