2/17/2026 8:52:20 AM   By  Andrew  in

2N3904 Bipolar Transistors – BJT by JSMSEMI

The Bipolar Transistors - BJT 2N3904 by  JSMSEMI is a reliable general-purpose NPN transistor designed for low-power switching and signal amplification. Built for consistent gain, fast switching speed, and compact TO-92 packaging, it is widely used in consumer electronics, industrial control systems, and embedded circuits.

Classified under Semiconductors, Discrete Semiconductors, Transistors, Bipolar Transistors - BJT, this device offers dependable electrical performance for everyday design requirements. You can source genuine components from www.xonelec.com, x-on electronics, and xon electronics for fast and secure global procurement.


Technical Specifications of 2N3904


Manufacturer: JSMSEMI
Part Number: 2N3904
Type: NPN Bipolar Junction Transistor
Category: Semiconductors, Discrete Semiconductors, Transistors, Bipolar Transistors - BJT
Package: TO-92 (Through Hole)
Collector-Emitter Voltage (Vceo): 40V
Collector Current (Ic): 200mA
Power Dissipation: 625mW
Gain (hFE): 100–300
Operating Temperature: –55°C to +150°C

This transistor ensures efficient signal amplification and fast switching for low- to medium-power applications.


Key Features of 2N3904


• General-purpose NPN transistor
• High current gain and low saturation voltage
• Fast switching characteristics
• Compact TO-92 through-hole package
• Stable thermal and electrical behavior
• Cost-effective and widely compatible

As part of Semiconductors, Discrete Semiconductors, Transistors, Bipolar Transistors - BJT, it is trusted across thousands of designs worldwide.


Applications of 2N3904


The 2N3904 is ideal for:

• Signal amplification circuits
• Switching loads and relays
• Audio pre-amplifiers
• LED drivers
• Logic interface circuits
• Sensor and control modules
• Embedded and IoT devices

Because it belongs to Semiconductors, Discrete Semiconductors, Transistors, Bipolar Transistors - BJT, it provides flexible use across both analog and digital electronics.


Electrical Performance & Reliability


The 2N3904 Bipolar Transistors - BJT offer:

• Reliable low-noise amplification
• Quick switching response
• Low leakage current
• Consistent gain stability
• Long operational life

These advantages make it a dependable choice within Semiconductors, Discrete Semiconductors, Transistors, Bipolar Transistors - BJT categories for industrial and consumer products.


Pin Configuration & Connection Overview


Typical TO-92 pinout:

Emitter (E)
Base (B)
Collector (C)

Ensure correct orientation while soldering to avoid reverse connections. The through-hole leads allow easy PCB mounting and strong mechanical stability.


Also Available from Other Manufacturers


Equivalent or compatible 2N3904 Bipolar Transistors - BJT are also available from:

Central Semiconductor
LGE
Changjing Electronics Technology
Blue Rocket
Semtech
Diotec
Rectron
Surge

This ensures easy sourcing and second-source availability for design flexibility.


Download Datasheet


Looking for complete electrical ratings, gain curves, and pin diagrams?

Download the 2N3904 datasheet directly from www.xonelec.com for detailed technical information and specifications 2N3904 Datasheet.


Why Buy from www.xonelec.com?


x-on electronics and xon electronics provide:

• 100% genuine semiconductors
• Competitive pricing
• Bulk quantity support
• Global shipping
• Secure ordering process
• Reliable sourcing for engineers and OEMs


Conclusion


The 2N3904 Bipolar Transistors - BJT by JSMSEMI deliver excellent switching speed, stable gain, and compact design for everyday electronics. Whether for amplification or signal control, this transistor remains one of the most trusted components in Semiconductors, Discrete Semiconductors, Transistors, Bipolar Transistors - BJT.


FAQs – 2N3904 Bipolar Transistor


Q1. What type of transistor is 2N3904?
NPN Bipolar Junction Transistor.

Q2. What is the maximum collector current?
Up to 200mA.

Q3. Is this through-hole or SMD?
Through-hole TO-92 package.

Q4. Can it be used for switching applications?
Yes, it supports fast and reliable switching.

Q5. Where can I purchase it?
From www.xonelec.com with global delivery.




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