TIP140 TIP141 TIP142 TIP145 TIP147 Equivalent

TIP142 is a 10A 100 V NPN Darlington Power Transistor, 125 WATTS.

The TIP142 is an NPN Darlington power transistor that is widely used in various applications requiring high current amplification. Designed for general−purpose amplifier and low frequency switching applications.

TIP142 Specification

Transistor Type: NPN Darlington
Maximum Continuous Collector Current (Ic): 10A
Maximum Collector Emitter Voltage (Vce): 100V
Maximum Emitter Base Voltage (Veb): 5V
Package Type: TO-247, TO-218
Mounting Type: Through Hole
Pin Count : 3
High DC Current Gain – Min hFE = 1000 @ IC= 5.0 A, VCE = 4V
Maximum Collector Base Voltage (Vcb): 100V
Maximum Collector Emitter Saturation Voltage 3V
Maximum Operating Temperature (Tj) +150 °C
Minimum Operating Temperature -65 °C
Power Dissipation (Ptot): 125W

Collector−Emitter Sustaining Voltage − @ 30 mA

VCEO(sus) = 60 Vdc (Min) − TIP140, TIP145

= 80 Vdc (Min) − TIP141, TIP146

= 100 Vdc (Min) − TIP142, TIP147

TIP142 TIP147 Pinout

TIP142 Features

High Current Gain: As a Darlington transistor, it combines two transistors to achieve a very high current gain (hFE), making it suitable for amplifying very small currents.
High Current Handling: The TIP142 can handle a collector current of up to 10A, with a peak of 20A. This makes it useful in high-power applications.
High Voltage Tolerance: It can withstand a voltage of 100V across the collector-emitter and collector-base junctions.
Low Saturation Voltage: Despite being a high-power transistor, the saturation voltage is relatively low, improving efficiency when used in switching applications.
Built-in Protection: It includes a base-emitter resistor to help stabilize the transistor and protect it against unwanted effects such as thermal runaway.
TO-247 Package: The transistor comes in a TO-247 package, which helps in heat dissipation, allowing it to handle higher power levels without excessive heating.

TIP142 Applications

Motor Drivers: TIP142 is commonly used in motor control circuits for driving DC motors, especially in high-power applications such as industrial machines or robotics.
Audio Amplifiers: Due to its high current gain, it’s used in high-power audio amplification systems to drive speakers and other audio equipment.
Switching Regulators: In power supply designs, it is used in the switching regulation circuits for voltage and current regulation.
Relay Drivers: It can be used to control relays in circuits where large current needs to be switched on and off.
Power Supplies: TIP142 is often found in power supplies, especially those needing to regulate and switch high currents, such as uninterruptible power supplies (UPS).
Lighting Controllers: It can be employed in dimming circuits or in control systems for high-power lighting applications like industrial or outdoor lighting systems.
Battery Chargers: It can also be used in battery charging circuits, particularly for high-capacity batteries requiring a regulated current flow.

TIP142 TIP141 TIP140 transistor equivalent

2SD2390, BDV65B, 2SD1197

TIP147 TIP145 transistor equivalent

BDV64B, BDX34C, TIP105 (8A)

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FAQ About TIP140, TIP141, and TIP142 Transistors

1. What are TIP140, TIP141, and TIP142 transistors?

These are NPN Darlington power transistors designed for high-power switching and amplification applications. They provide high current gain and are commonly used in audio amplifiers, motor drivers, and power supply circuits.

2. What is the maximum current rating of TIP140, TIP141, and TIP142?

TIP140: 10A (Continuous)10A, 15A (Peak)
TIP141: 10A (Continuous)10A, 15A (Peak)
TIP142: 10A (Continuous)10A, 15A (Peak)

3. What is the voltage rating of TIP140, TIP141, and TIP142?

TIP140: 60V
TIP141: 80V
TIP142: 100V

4. What is the power dissipation of these transistors?

The maximum power dissipation (Pd) is 125W, which makes them suitable for high-power applications.

5. What is the gain (hFE) of these transistors?

These transistors have a minimum DC current gain (hFE) of 1000, making them ideal for amplification applications.

6. What package do TIP140, TIP141, and TIP142 come in?

They come in a TO-247 package, which provides efficient heat dissipation and easy mounting on heat sinks.

7. What are the main applications of these transistors?

High-power audio amplifiers
Motor control circuits
Voltage regulators
Power supply circuits
Industrial control systems

8. What is the pin configuration of TIP140, TIP141, and TIP142?

The pinout for all three transistors (when looking at the front side with the metal tab at the back):

Base (B)
Collector (C)
Emitter (E)

9. What is the complementary PNP transistor for TIP140, TIP141, and TIP142?

The TIP147 is the complementary PNP transistor used with these NPN Darlington transistors for push-pull amplifier circuits.

10. Can TIP140, TIP141, and TIP142 be used without a heat sink?

No, they generate significant heat during operation, so a heat sink is recommended to prevent overheating and ensure efficient performance.

FAQ About TIP145, TIP146, and TIP147 Transistors

1. What are TIP145, TIP146, and TIP147 transistors?

These are PNP Darlington power transistors designed for high-power switching and amplification applications. They are commonly used in audio amplifiers, motor controllers, and power supply circuits.

2. What is the maximum current rating of TIP145, TIP146, and TIP147?

TIP145: 10A (Continuous), 15A (Peak)
TIP146: 10A (Continuous), 15A (Peak)
TIP147: 10A (Continuous), 15A (Peak)

3. What is the voltage rating of these transistors?

TIP145: 60V
TIP146: 80V
TIP147: 100V

4. What is the power dissipation of TIP145, TIP146, and TIP147?

The maximum power dissipation (Pd) is 125W, allowing them to handle high-power applications efficiently.

5. What is the gain (hFE) of these transistors?

These transistors have a minimum DC current gain (hFE) of 1000, making them highly efficient for amplification purposes.

6. What package do these transistors come in?

They are available in the TO-247 package, which helps with heat dissipation and easy mounting on heat sinks.

7. What are the main applications of TIP145, TIP146, and TIP147?

High-power audio amplifiers
Motor control circuits
Voltage regulators
Power supply circuits
Industrial control systems
Push-pull amplifier circuits (with complementary NPN transistors)

8. What is the pin configuration of TIP145, TIP146, and TIP147?

For all three transistors (when looking at the front side with the metal tab at the back):

Base (B)
Collector (C)
Emitter (E)

9. What are the complementary NPN transistors for TIP145, TIP146, and TIP147?

TIP145 → TIP140
TIP146 → TIP141
TIP147 → TIP142
These complementary NPN transistors are often paired with their PNP counterparts in push-pull amplifier circuits.

10. Do TIP145, TIP146, and TIP147 require a heat sink?

Yes, these transistors generate significant heat during high-power operation, so a heat sink is recommended for better thermal management and performance.