Transistor

C2073 Datasheet – 150V, 1.5A, NPN Transistor, 2SC2073

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This is one of the NPN transistor types.

Part Number: 2SC2073

Function: NPN Power Transistor (1.5A / 150V / 25W)

Package: TO-220 Type

The manufacturers of this product is Mospec Semiconductor.

See the preview image and the PDF file for more information.

Image and Pinout
C2073 datasheet pinout

Description

The C2073 is a silicon NPN power transistor in a TO-220 package, rated for 150V collector-emitter voltage and 1.5A collector current, suitable for medium-power applications. It offers stable current gain, high voltage capability, and reliable thermal performance using advanced fabrication technology. This transistor is commonly used in general-purpose power amplifiers and vertical output stages in display and audio systems.

Features

  • High collector-emitter voltage VCEO = 150V
  • Collector current capability up to IC = 1.5A
  • DC current gain hFE = 40~140 @ IC = 500mA
  • Low saturation voltage for efficient operation
  • Good thermal stability and reliability
  • Complementary PNP transistor: 2SA940
  • TO-220 package for effective heat dissipation

C2073 Pinout

1. Base
2. Collector
3. Emitter
4. Collector ( Case )

Absolute maximum ratings ( Ta=25°C )

1. Collector to Base Voltage: Vcbo = 150 V
2. Collector to Emitter Voltage: Vceo = 150 V
3. Emitter to Base Voltage: Vebo = 5.0 V
4. Collector Current: Ic = 1.5 A
5. Total Dissipation : Pc = 25 W
6. Junction Temperature: Tj = 150°C
7. Storage Temperature: Tsg = -55 ~ +150°C

C2073 maximum ratings

Typical Circuit Usage

  • Audio power amplifier output stages
  • Vertical deflection circuits in CRT displays
  • General-purpose switching applications
  • Linear regulator pass transistor stages
  • Driver stages in power electronics

How to Choose This Part

  • Select for medium-voltage, moderate-current applications
  • Suitable when TO-220 package thermal performance is required
  • Ideal for amplifier circuits needing stable gain characteristics
  • Consider complementary pairing with 2SA940 for push-pull designs
  • Evaluate power dissipation and cooling requirements

Applications

  • Power amplifiers
  • CRT vertical output circuits
  • Industrial control circuits
  • Audio systems
  • General-purpose power switching

Alternative / Equivalent Products

  • 2SC4793
  • TIP41C
  • BD243C
  • MJE13007

C2073 Datasheet

C2073 transistor pdf

2SK2154 Datasheet PDF – 20V, 12A, MOSFET, Transistor

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Part Number: 2SK2154

Function: 20V, 12A, Silicon N-Channel MOSFET

Package: TO-252

Manufacturer: SANYO (Panasonic)

Image

2SK2154 datasheet pdf

Description

The 2SK2154 is a low-voltage N-channel silicon MOSFET designed for high-speed switching applications, typically provided in a compact power package. It features low ON resistance, fast switching characteristics, and compatibility with low-voltage gate drive circuits for efficient operation. This device is commonly used in high-speed switching circuits, DC-DC converters, and logic-level power control applications.

Features

  • Low drain-source ON resistance for reduced conduction losses
  • Very high-speed switching capability
  • Low-voltage gate drive compatibility
  • High current handling up to 12A
  • Optimized for efficient low-voltage operation
  • Suitable for compact and high-density circuit designs

Pinout

2SK2154 pinout

Absolute Maximum Ratings (Tc = 25 °C)

Parameter Symbol Value Unit
Drain-Source Voltage VDSS 20 V
Gate-Source Voltage VGSS ±18 V
Drain Current ID 12 A
Power Dissipation Pd 30 W
Channel Temperature Tch 150 °C
Storage Temperature Tstg -55 to 150 °C

Design Notes

  • Ideal for low-voltage applications where efficiency and speed are critical
  • Use proper gate drive to fully enhance the MOSFET and minimize RDS(on)
  • Minimize gate trace inductance to preserve high-speed switching performance
  • Provide adequate heat sinking when operating near maximum current
  • Include gate resistors if needed to control switching transients and EMI

Typical Circuit Usage

  • High-speed switching converters
  • Low-voltage DC-DC regulator circuits
  • Motor control for small DC motors
  • Load switching in digital systems
  • Synchronous rectification stages

How to Choose This Part

  • Select for applications requiring fast switching at low voltage (≤20V)
  • Suitable for high-current loads up to 12A
  • Ensure gate drive voltage is compatible with logic-level control
  • Evaluate thermal performance for continuous operation
  • Prefer when low conduction loss is important

Applications

  • Very high-speed switching circuits
  • DC-DC converters
  • Portable electronics power management
  • Embedded system power control
  • Low-voltage motor drives

Alternative / Equivalent Products

  • IRLZ44N (logic-level MOSFET alternative)
  • AO4407 (low-voltage MOSFET option)
  • FDS6910 (dual MOSFET alternative)
  • SI2302 (SMD low-voltage MOSFET)
  • 2SK2232 (similar N-channel MOSFET)

Other data sheets are available within the file: K2154

2SK2154 Datasheet PDF Download


2SK2154 pdf