NPN

BC141 Datasheet PDF – 60V, NPN Transistor, TO-39

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Part Number: BC141

Function: NPN silicon AF medium power amplifier

Package: TO-39

Manufacturer: Multicomp

Image and Pinouts:

BC141 datasheet

Description

The BC141 is an NPN silicon medium-power transistor designed for audio frequency (AF) amplification and general-purpose switching applications. Housed in a TO-39 metal package, it offers good thermal performance and reliability, making it suitable for linear amplification stages and moderate power switching circuits.

Features

  • NPN silicon transistor for medium power applications
  • Suitable for AF (audio frequency) amplification
  • Capable of switching and linear operation
  • Robust TO-39 metal package for improved heat dissipation
  • Reliable performance in industrial and consumer circuits

Absolute Maximum Ratings (Ta = 25°C)

Parameter Symbol Value Unit
Collector-Base Voltage VCBO 60 V
Collector-Emitter Voltage VCEO 100 V
Emitter-Base Voltage VEBO 7 V
Collector Current IC 1 A
Power Dissipation PD 0.8 W
Junction Temperature TJ 150 °C
Storage Temperature TSTG -65 ~ +200 °C

Typical Circuit Usage

  • Audio amplifier driver stages
  • Pre-amplifier and small signal amplification
  • General-purpose switching circuits
  • Relay or low-power load drivers
  • Signal conditioning stages

How to Choose This Part

  • Select for medium-power analog amplification up to 1A collector current
  • Verify voltage ratings match circuit requirements
  • Consider thermal design due to relatively low power dissipation
  • Evaluate gain (hFE) requirements depending on application
  • Compare with modern plastic-packaged alternatives for cost-sensitive designs

Applications

  • Audio frequency amplifiers
  • Industrial control circuits
  • Signal amplification systems
  • General-purpose electronic circuits
  • Consumer electronics

Alternative / Equivalent Products

  • BC107 / BC108 – Lower power small signal transistors
  • BD139 – Higher power NPN transistor
  • 2N2219 – TO-39 NPN transistor with similar characteristics
  • 2N3053 – Medium power NPN switching transistor
  • MPSA06 – General-purpose NPN transistor

BC141 Datasheet PDF Download


BC141 pdf

Other data sheets are available within the file: BC140, BC140-10, BC140-16, BC140-6

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