Transistors - Special Purpose

Category Introduction

Products in the special purpose transistor family are discrete transistors or transistor arrays, with or without additional integrated passive components and internal connections, that are intended for or adapted to some narrow or specific purpose such as current mirroring, balancing series connected capacitor banks, or load switching.

Product List

19 Items
PDF Mfr Part # Quantity
Available
UnitPrice RFQ Series Packaging Product StatusTransistor TypeApplicationsVoltage - RatedCurrent Rating (Amps)Mounting TypePackage / CaseSupplier Device Package
PMD3001D,115
PMD3001D,115
IC MOSFET DRIVER 6TSOP
Nexperia USA Inc.
737 $0.43
Tape & Reel (TR) ActiveNPN, PNP (Emitter Coupled)MOSFET Driver40V1ASurface MountSC-74, SOT-4576-TSOP
BCM62B,215
BCM62B,215
TRANS PNP DBL 45V 100MA SOT-143B
Nexperia USA Inc.
1,346 $0.41
Tape & Reel (TR) Active2 PNP (Dual) Current MirrorCurrent Mirror45V100mASurface MountTO-253-4, TO-253AASOT-143B
BCM61B,215
BCM61B,215
TRANS NPN DBL 45V 100MA SOT-143B
Nexperia USA Inc.
2,032 $0.41
Tape & Reel (TR) Active2 NPN (Dual)Current Mirror45V100mASurface MountTO-253-4, TO-253AASOT-143B
BCV61CE6327HTSA1
BCV61CE6327HTSA1
TRANSISTOR NPN DOUBLE SOT-143
Infineon Technologies
1,987 $0.42
Tape & Reel (TR) Not For New Designs2 NPN, Base Collector JunctionCurrent Mirror30V100mASurface MountSOT-143RPG-SOT143-4-1
BCV62B,235
BCV62B,235
TRANS PNP 30V 100MA DUAL SOT143B
Nexperia USA Inc.
1,361 $0.53
Tape & Reel (TR) Active2 PNP (Dual) Current MirrorCurrent Mirror30V100mASurface MountTO-253-4, TO-253AASOT-143B
BCV62B,215
BCV62B,215
TRANS PNP 30V 100MA DUAL SOT143B
Nexperia USA Inc.
522 $0.50
Tape & Reel (TR) Active2 PNP (Dual) Current MirrorCurrent Mirror30V100mASurface MountTO-253-4, TO-253AASOT-143B
BCV62A,215
BCV62A,215
TRANS PNP 30V 100MA DUAL SOT143B
Nexperia USA Inc.
827 $0.53
Tape & Reel (TR) Active2 PNP (Dual) Current MirrorCurrent Mirror30V100mASurface MountTO-253-4, TO-253AASOT-143B
BCV61B,215
BCV61B,215
TRANS NPN 30V 100MA DUAL SOT143B
Nexperia USA Inc.
497 $0.50
Tape & Reel (TR) Active2 NPN (Dual) Current MirrorCurrent Mirror30V100mASurface MountTO-253-4, TO-253AASOT-143B
BCV61,215
BCV61,215
TRANS NPN 30V 100MA DUAL SOT143B
Nexperia USA Inc.
1,105 $0.42
Tape & Reel (TR) Active2 NPN (Dual) Current MirrorCurrent Mirror30V100mASurface MountTO-253-4, TO-253AASOT-143B
BCV61,235
BCV61,235
TRANS NPN 30V 100MA DUAL SOT143B
Nexperia USA Inc.
4,399 $0.11
Tape & Reel (TR) Active2 NPN (Dual) Current MirrorCurrent Mirror30V100mASurface MountTO-253-4, TO-253AASOT-143B
BCV62,235
BCV62,235
NOW NEXPERIA BCV62 - SMALL SIGNA
NXP USA Inc.
8,820 $0.08
Bulk Active2 PNP (Dual) Current MirrorCurrent Mirror30V100mASurface MountTO-253-4, TO-253AASOT-143B
PMD2001D,115
PMD2001D,115
IC MOSFET DRIVER 6TSOP
Nexperia USA Inc.
774 $0.49
Tape & Reel (TR) ActiveNPN, PNP (Emitter Coupled)MOSFET Driver40V600mASurface MountSC-74, SOT-4576-TSOP
BCV61B,235
BCV61B,235
TRANS NPN 30V 100MA DUAL SOT143B
Nexperia USA Inc.
2,315 $0.42
Tape & Reel (TR) Active2 NPN (Dual) Current MirrorCurrent Mirror30V100mASurface MountTO-253-4, TO-253AASOT-143B
BCV61BE6327
BCV61BE6327
TRANSISTORS FOR CURRENT MIRROR
Infineon Technologies
178 $0.00
Bulk Active2 NPN, Base Collector JunctionCurrent Mirror30V100mASurface MountTO-253-4, TO-253AAPG-SOT-143-3D
BCV61BE6433HTMA1
BCV61BE6433HTMA1
TRANSISTOR NPN DOUBLE 45V SOT143
Infineon Technologies
4,764 $0.13
Tape & Reel (TR) Not For New Designs2 NPN, Base Collector JunctionCurrent Mirror30V100mASurface MountTO-253-4, TO-253AAPG-SOT-143-3D
BCV61BE6327HTSA1
BCV61BE6327HTSA1
TRANSISTOR NPN DOUBLE SOT-143
Infineon Technologies
1,173 $0.42
Tape & Reel (TR) Not For New Designs2 NPN, Base Collector JunctionCurrent Mirror30V100mASurface MountTO-253-4, TO-253AAPG-SOT-143-3D
PBSM5240PFH,115
PBSM5240PFH,115
TRANS PNP/N CH 40V 1.8A 6HUSON
Nexperia USA Inc.
6,218 $0.15
Tape & Reel (TR) ActivePNP, N-ChannelGeneral Purpose40V PNP, 30V N-Channel1.8A PNP, 660mA N-ChannelSurface Mount6-UFDFN Exposed Pad6-HUSON (2x2)
STC04IE170HV
STC04IE170HV
TRANS ESBT 1700V 4A TO247-4LHV
STMicroelectronics
520 $0.00
Tube ObsoleteNPN - Emitter Switched BipolarGate Driver1700V (1.7kV)4AThrough HoleTO-247-4TO-247-4L HV
BCV 61A E6327
BCV 61A E6327
TRANSISTOR NPN DBL 30V SOT143-4
Infineon Technologies
189 $0.00
Tape & Reel (TR) Discontinued at Digi-Key2 NPN, Base Collector JunctionCurrent Mirror30V100mASurface MountTO-253-4, TO-253AAPG-SOT-143-3D

About Transistors - Special Purpose

What are Transistors - Special Purpose?

Transistors - Special Purpose

Transistors - Special Purpose are a subset of transistors designed to perform specific functions beyond the capabilities of general-purpose transistors. These components are engineered to meet unique requirements in specialized applications, offering enhanced performance, efficiency, or functionality. At their core, transistors are semiconductor devices used to amplify or switch electronic signals and electrical power. They operate by using a small input current to control a larger output current, functioning as a gate for electrical signals. Special purpose transistors are tailored to optimize these basic principles for particular tasks, ensuring precision and reliability in demanding environments.

Types of Transistors - Special Purpose

1. Power Transistors

Power transistors are designed to handle high currents and voltages, making them ideal for power amplification and switching applications. They are characterized by their ability to dissipate significant amounts of heat, often featuring robust packaging and heat sinks. These transistors are commonly used in power supply circuits, motor controllers, and audio amplifiers.

2. RF Transistors

RF (Radio Frequency) transistors are optimized for high-frequency applications, such as wireless communication and broadcasting. They are designed to operate efficiently at radio frequencies, offering low noise and high gain. RF transistors are crucial in the design of transmitters, receivers, and signal amplifiers in telecommunications.

3. Phototransistors

Phototransistors are sensitive to light and are used to detect and convert light signals into electrical signals. They are often employed in optical sensors, light meters, and safety devices. Their ability to respond to light makes them invaluable in applications requiring non-contact sensing and automatic lighting controls.

4. IGBT (Insulated Gate Bipolar Transistor)

IGBTs combine the characteristics of MOSFETs and bipolar transistors, offering high efficiency and fast switching. They are widely used in high-power applications such as electric vehicle drives, induction heating, and renewable energy systems. IGBTs are known for their ability to handle large power loads with minimal loss.

5. Avalanche Transistors

Avalanche transistors are designed to operate in the avalanche breakdown region, providing high-speed switching capabilities. They are used in pulse generation and timing circuits, where rapid switching is essential. Their unique operating mode allows them to handle high voltages and currents momentarily.

How to choose Transistors - Special Purpose?

When selecting special purpose transistors, several key parameters must be considered to ensure optimal performance:

  • Current and Voltage Ratings: Ensure the transistor can handle the required current and voltage levels for your application.
  • Frequency Response: For RF applications, choose transistors with appropriate frequency characteristics.
  • Power Dissipation: Consider the thermal management requirements and select transistors with suitable heat dissipation capabilities.
  • Switching Speed: Evaluate the switching speed needed for your application, especially in high-speed circuits.
  • Environmental Conditions: Assess the operating environment, including temperature and humidity, to select transistors with adequate protection and reliability.

To evaluate product quality and reliability, review supplier datasheets, customer reviews, and industry certifications. Consider the manufacturer's reputation and warranty offerings. Installation requirements may include proper heat sinking, adequate spacing for cooling, and protection against environmental factors such as moisture and dust.

Applications of Transistors - Special Purpose

1. Telecommunications

In the telecommunications industry, RF transistors are pivotal in the development of mobile phones, satellite communication systems, and radio transmitters. They enable efficient signal transmission and reception, ensuring clear and reliable communication over long distances.

2. Automotive Industry

Power transistors and IGBTs are extensively used in electric vehicles (EVs) for motor control and battery management systems. They help in efficiently converting and managing power, enhancing the performance and range of EVs.

3. Consumer Electronics

Phototransistors find applications in consumer electronics such as remote controls, optical sensors, and automatic lighting systems. They provide non-contact sensing capabilities, enhancing user convenience and device functionality.

4. Industrial Automation

In industrial automation, special purpose transistors are used in motor drives, robotic systems, and power inverters. They ensure precise control and efficient power management, contributing to increased productivity and energy savings.

5. Renewable Energy

IGBTs play a crucial role in renewable energy systems, such as solar inverters and wind turbine converters. They facilitate efficient energy conversion and grid integration, supporting the transition to sustainable energy sources.