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On Oct 28, 2025


PN4249 Bipolar Transistors - BJT by Central Semiconductor – Reliable and Efficient Switching Performance

The Bipolar Transistors - BJT PN4249 by Central Semiconductor are premium Semiconductors designed for reliable amplification and switching in both analog and digital circuits. Built with advanced silicon technology, these Transistors ensure low noise, high gain, and exceptional thermal stability — making them an excellent choice for precision electronic applications.

In this blog, we’ll explore the key specifications, advantages, and uses of the PN4249, one of the most trusted Bipolar Transistors - BJT in the market.


Introduction

Central Semiconductor’s PN4249 Bipolar Transistors - BJT are versatile Discrete Semiconductors designed to perform efficiently across a wide range of electronic applications. These Transistors are engineered for both amplification and high-speed switching, ensuring consistent operation in power management, signal control, and audio circuits.


Technical Specifications of PN4249 Bipolar Transistors - BJT

  • Manufacturer: Central Semiconductor

  • Part Number: PN4249

  • Type: Bipolar Transistor - BJT (NPN)

  • Polarity: NPN

  • Collector-Emitter Voltage (VCEO): 40V

  • Collector-Base Voltage (VCBO): 60V

  • Emitter-Base Voltage (VEBO): 6V

  • Collector Current (IC): 500mA

  • DC Current Gain (hFE): 100 – 300

  • Power Dissipation: 625mW

  • Package Type: TO-92

  • Category: Semiconductors, Discrete Semiconductors, Transistors, Bipolar Transistors - BJT

The PN4249 provides excellent current gain stability and thermal performance, ensuring optimal function across diverse temperature and load conditions.


Key Features of PN4249 Bipolar Transistors - BJT

  • High DC Current Gain – Enables precise amplification and efficient switching.

  • Low Leakage Current – Ensures minimal power loss during operation.

  • Compact TO-92 Package – Suitable for space-constrained circuit boards.

  • Wide Operating Voltage Range – Supports diverse electronic designs.

  • Reliable Thermal Performance – Maintains stability in demanding environments.

These features make the PN4249 Bipolar Transistors - BJT a preferred choice for engineers developing reliable and efficient Semiconductors for modern electronic applications.


Applications of PN4249 Bipolar Transistors - BJT

The PN4249 Bipolar Transistors - BJT by Central Semiconductor are widely used across multiple domains that require precision and durability, including:

  • Signal Amplification Circuits

  • Power Switching Systems

  • Audio and Communication Equipment

  • Industrial Control Boards

  • Consumer Electronics

  • Datasheet

These Transistors are known for their dependable switching performance and longevity in high-efficiency Semiconductors applications.


Use Case Scenario: Signal Amplification and Control

Scenario

An audio equipment manufacturer required stable Bipolar Transistors - BJT for preamplifier and driver circuits.

Problem

Existing components suffered from inconsistent current gain and excessive noise.

Solution

The PN4249 Transistors by Central Semiconductor offered excellent gain uniformity, low noise characteristics, and strong thermal performance.

Result

Improved sound clarity, stable performance, and long-lasting circuit reliability across all operating conditions.


Also Available from Other Manufacturers

If you’re looking for alternatives, similar Bipolar Transistors - BJT and Semiconductors are also available from:

These equivalent transistors offer similar specifications and performance for various analog and switching applications.


Why Buy from XON Electronics

XON Electronics provides a comprehensive selection of Semiconductors, including the PN4249 Bipolar Transistors - BJT by Central Semiconductor, with:

  • 100% Genuine and Quality-Tested Components
  • Global Shipping – USA, India, Australia, Europe & more
  • OEM and Bulk Order Discounts
  • Technical Support and Design Consultation
  • Secure, Fast, and Reliable Online Ordering

Buy online from XON Electronics and access authentic Transistors and other Discrete Semiconductors from trusted global brands.


FAQs – PN4249 Bipolar Transistors - BJT by Central Semiconductor

Q1. What is the polarity of PN4249?
The PN4249 is an NPN Bipolar Transistor - BJT.

Q2. What is the maximum collector-emitter voltage?
It supports up to 40V VCEO.

Q3. What is the current gain (hFE)?
The DC gain ranges between 100 and 300.

Q4. What are typical applications for PN4249?
Used in amplification, switching, and signal processing circuits.

Q5. Where can I buy PN4249 Transistors?
You can buy them from XON Electronics, shipping to USA, India, Australia, Europe, and other countries.


Conclusion

The PN4249 Bipolar Transistors - BJT by Central Semiconductor provide a balance of performance, durability, and efficiency, making them ideal for Semiconductors, Discrete Semiconductors, Transistors, and Bipolar Transistors - BJT applications. With consistent current gain and robust switching capability, they’re trusted for both consumer and industrial designs.
Order now from XON Electronics — your global source for genuine Semiconductors and high-quality Transistors for professional use.


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