TIP35C is a NPN power transistor used in audio amplifier circuits, switching circuit and motor driver circuits. This transistor can able to handle maximum current of up to 50 Ampere at 100V. So this transistor is a most favorite one for electronic enthusiasts and hobbyist in electronics. In this article I’m sharing the details about the Pinout, Equivalent and characteristics of TIP35C Transistors.
TIP35C Pinout
The TIP35C transistor is comes in TO-218 and SOT-93 packages. The transistor is comes in three legs which are the pins of the transistor. The pin configuration is given below,
1. Base
2. Collector
3. Emitter
Please Note: The metal side of the transistor (Backside) is internally connected to the collector pin.
TIP35C Equivalent Transistors
If TIP35C is unavailable or difficult to get from local market, the given equivalent transistors can be used. You need to check the characteristics and pinout of the transistor before replacing with other one.
- 2N3055 – Classic power NPN transistor, lower power handling of 15A and 60V
- MJ15003 – High-power NPN
- BD249C – NPN transistor in TO-3P, comparable ratings
- TIP3055 – NPN transistor with similar current and voltage specs
Characteristics
| Parameter | Value |
| Transistor Type | NPN |
| Collector-Emitter Voltage (Vceo) | 100V |
| Collector-Base Voltage (Vcbo) | 100V |
| Emitter-Base Voltage (Vebo) | 5V |
| Collector Current (Ic) | 25A (Continuous) |
| Peak Collector Current (Icm) | 50A |
| Power Dissipation (Ptot) | 125W (at case ≤ 25°C) |
| DC Current Gain (hFE) | 10–50 (IC = 15A, VCE = 4V) |
| Collector-Emitter Saturation Voltage (Vce(sat)) | Up to 4V at 25A |
| Transition Frequency (fT) | 3 MHz |
| Junction Temperature (Tj) | Max 150°C |
| Thermal Resistance (RθJC) | 1°C/W |
Applications
- Audio Power Amplifiers
- DC Motor Drivers
- Switching Power Supplies
- Battery Chargers
- Inverter Circuits
Complementary Transistor
TIP35C is NPN transistor and its complementary pair of transistor is TIP36C. it is a PNP transistor with the same characteristic. This pair of transistors are used in amplifier circuits and other push pull circuits.
Mounting and Thermal Management
The max power dissipation of this transistor is about 125 watt. So the transistor requires a large aluminum heat sink for efficient heat transferring. Always remember the insulator is placed in between the aluminum block and transistor metal side.
