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PN3569

Manufacturer: Fairchild, FSC

Leaded Small Signal Transistor General Purpose

Partnumber Manufacturer Quantity Availability
PN3569 Fairchild, FSC 17040 In Stock

Description and Introduction

Leaded Small Signal Transistor General Purpose The PN3569 is a widely used NPN bipolar junction transistor (BJT) designed for general-purpose amplification and switching applications. Known for its reliability and performance, this component is commonly employed in low-power circuits, signal processing, and audio amplification stages.  

With a moderate current and voltage rating, the PN3569 is suitable for applications requiring fast switching speeds and efficient signal amplification. Its compact TO-92 package makes it easy to integrate into various circuit designs while maintaining thermal stability. Key specifications include a collector-emitter voltage (VCEO) of up to 25V and a continuous collector current (IC) of 200mA, making it ideal for small-signal amplification tasks.  

Engineers and hobbyists favor the PN3569 for its consistent performance, low noise characteristics, and cost-effectiveness. Whether used in audio preamplifiers, sensor interfaces, or switching circuits, this transistor provides dependable operation under typical operating conditions. Proper biasing and heat dissipation should be considered to maximize efficiency and longevity.  

Overall, the PN3569 remains a practical choice for electronic designs requiring a versatile and readily available NPN transistor. Its balanced performance and ease of use make it a staple in both prototyping and production environments.

Application Scenarios & Design Considerations

Leaded Small Signal Transistor General Purpose

Alternative Part Number

  • 2N3904 --: Widely available general-purpose NPN transistor in TO-92, similar small-signal switching and amplification role as PN3569.
  • BC547 --: Common low-noise NPN transistor in TO-92 with comparable current and voltage ratings, suitable for general switching and amplifier circuits.
  • 2N2222A --: Robust NPN transistor with higher current capability, often used as a drop-in upgrade for small-signal NPN parts like PN3569.
  • 2N3904 --: Widely available NPN general-purpose transistor with similar small-signal switching characteristics and pinout, easy drop-in for most PN3569 applications.
  • BC547 --: Common NPN small-signal transistor with comparable current gain and voltage ratings, suitable for general amplification and switching circuits.
  • MMBT3904 --: SMD version of the 2N3904 with equivalent electrical performance, useful when a surface-mount alternative to the through-hole PN3569 is needed.
  • 2N3904 --: Widely available general-purpose NPN transistor with similar small-signal switching characteristics and pinout, making it a common drop-in substitute.
  • BC547 --: Popular general-purpose NPN transistor with comparable current gain and voltage ratings, suitable for most low-power switching and amplification uses.
  • 2N2222A --: Robust general-purpose NPN transistor with higher current capability, offering a reliable alternative when slightly more drive margin is needed.

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