2N3904TA
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onsemi 2N3904TA

Manufacturer No:
2N3904TA
Manufacturer:
onsemi
Package:
Cut Tape (CT)
Description:
TRANS NPN 40V 0.2A TO92-3
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The 2N3904TA is a widely used NPN bipolar junction transistor (BJT) produced by onsemi. It is designed for general-purpose low-power amplifying and switching applications. This transistor is known for its reliability, low cost, and robust performance, making it a favorite among electronics hobbyists and professionals alike. The 2N3904TA is part of a complementary pair with the 2N3906 PNP transistor, both of which were originally registered by Motorola Semiconductor in the mid-1960s.

Key Specifications

ParameterSymbolMax/MinUnit
Collector-Base VoltageVCBO60V
Collector-Emitter VoltageVCEO40V
Emitter-Base VoltageVEBO6.0V
Continuous Collector CurrentIC200mA
Power DissipationPD625mW
Operating and Storage Junction TemperatureTJ, Tstg-65 to +150°C
Thermal Resistance, Junction-to-AmbientRθJA200°C/W
Transition FrequencyfT300MHz
Current Gain (Beta)hFE100 (min) @ IC = 10 mA

Key Features

  • Low Leakage Current: ICEX = 50 nA (max) and IBL = 50 nA (max) @ VCE = 30 V, VEB = 3 V.
  • Excellent DC Current Gain Linearity: Ensures stable and predictable performance in various applications.
  • Low Saturation Voltage: VCE(sat) = 0.3 V (max) @ IC = 50 mA, IB = 5 mA, reducing power losses in switching applications.
  • Low Collector Output Capacitance: Cob = 4 pF (max) @ VCB = 5 V, which is beneficial for high-frequency operations.
  • Complementary Transistor: The 2N3904 is complementary to the 2N3906 PNP transistor, making it easy to design push-pull amplifiers and other complementary circuits.

Applications

The 2N3904TA is versatile and can be used in a variety of applications, including:

  • General Purpose Amplification: Suitable for low-power amplifying circuits due to its good current gain and low noise characteristics.
  • Switching Applications: Its low saturation voltage and fast switching times make it ideal for switching circuits.
  • Audio and Signal Processing: Can be used in audio amplifiers, signal processing circuits, and other low-power electronic devices.
  • Educational and Hobby Projects: Widely used by electronics hobbyists and students due to its availability, low cost, and ease of use.

Q & A

  1. What is the maximum collector current of the 2N3904TA? The maximum collector current is 200 mA.
  2. What is the maximum collector-emitter voltage of the 2N3904TA? The maximum collector-emitter voltage is 40 V.
  3. What is the thermal resistance of the 2N3904TA? The thermal resistance, junction-to-ambient, is 200 °C/W.
  4. What is the transition frequency of the 2N3904TA? The transition frequency is 300 MHz.
  5. What is the current gain (beta) of the 2N3904TA? The minimum current gain (beta) is 100 at a collector current of 10 mA.
  6. What are the complementary transistors to the 2N3904TA? The complementary PNP transistor is the 2N3906.
  7. What are the typical applications of the 2N3904TA? General-purpose amplification, switching applications, audio and signal processing, and educational/hobby projects.
  8. What is the package style of the 2N3904TA? The package style is TO-92.
  9. What is the maximum power dissipation of the 2N3904TA? The maximum power dissipation is 625 mW.
  10. What are the operating and storage junction temperatures for the 2N3904TA? The operating and storage junction temperatures range from -65 to +150 °C.

Product Attributes

Transistor Type:NPN
Current - Collector (Ic) (Max):200 mA
Voltage - Collector Emitter Breakdown (Max):40 V
Vce Saturation (Max) @ Ib, Ic:300mV @ 5mA, 50mA
Current - Collector Cutoff (Max):- 
DC Current Gain (hFE) (Min) @ Ic, Vce:100 @ 10mA, 1V
Power - Max:625 mW
Frequency - Transition:300MHz
Operating Temperature:-55°C ~ 150°C (TJ)
Mounting Type:Through Hole
Package / Case:TO-226-3, TO-92-3 (TO-226AA) Formed Leads
Supplier Device Package:TO-92-3
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Similar Products

Part Number 2N3904TA 2N3904TF 2N3904TAR 2N3906TA 2N3905TA 2N3904CTA
Manufacturer onsemi onsemi onsemi onsemi onsemi Fairchild Semiconductor
Product Status Active Active Active Active Obsolete Obsolete
Transistor Type NPN NPN NPN PNP PNP NPN
Current - Collector (Ic) (Max) 200 mA 200 mA 200 mA 200 mA 200 mA 200 mA
Voltage - Collector Emitter Breakdown (Max) 40 V 40 V 40 V 40 V 40 V 40 V
Vce Saturation (Max) @ Ib, Ic 300mV @ 5mA, 50mA 300mV @ 5mA, 50mA 300mV @ 5mA, 50mA 400mV @ 5mA, 50mA 400mV @ 5mA, 50mA 300mV @ 5mA, 50mA
Current - Collector Cutoff (Max) - - - - - -
DC Current Gain (hFE) (Min) @ Ic, Vce 100 @ 10mA, 1V 100 @ 10mA, 1V 100 @ 10mA, 1V 100 @ 10mA, 1V 50 @ 10mA, 1V 100 @ 10mA, 1V
Power - Max 625 mW 625 mW 625 mW 625 mW 625 mW 625 mW
Frequency - Transition 300MHz 300MHz 300MHz 250MHz - 300MHz
Operating Temperature -55°C ~ 150°C (TJ) -55°C ~ 150°C (TJ) -55°C ~ 150°C (TJ) -55°C ~ 150°C (TJ) -55°C ~ 150°C (TJ) -55°C ~ 150°C (TJ)
Mounting Type Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole
Package / Case TO-226-3, TO-92-3 (TO-226AA) Formed Leads TO-226-3, TO-92-3 (TO-226AA) Formed Leads TO-226-3, TO-92-3 (TO-226AA) Formed Leads TO-226-3, TO-92-3 (TO-226AA) Formed Leads TO-226-3, TO-92-3 (TO-226AA) Formed Leads TO-226-3, TO-92-3 (TO-226AA) Formed Leads
Supplier Device Package TO-92-3 TO-92-3 TO-92-3 TO-92-3 TO-92-3 TO-92-3

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