• 2N4401: NPN Transistor, Pinout, Datasheet

    04/09/2022 at 02:27 • 0 comments

    2N4401 Description

    The 2n4401 is a bipolar junction transistor with an NPN junction that is used for general purpose amplification and switching. Conduction is carried out by both charge carriers, i.e. electrons and holes, in a bipolar junction transistor. However, electrons will be the majority charge carriers.

    2N4401 Features

    The collector current (IC) is 500mA on a continuous basis.

    The voltage between the collector and the emitter (VCE) is 40 volts.

    The collector-base voltage (VCB) is set to 60 volts.

    6V is the Emitter Base Breakdown Voltage (VBE).

    100MHz is the transition frequency.

    To-92 package is available.

    General-purpose NPN Transistor

    High DC Current Gain (hFE), typically 80 when IC=10mA

    2N4401 Pinout

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    2N4401 CAD Model

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    2N4401 Equivalents

    Part NumberDescriptionManufacturer
    2N4401RLRETRANSISTORSSmall Signal Bipolar Transistor, 0.6A I(C), 40V V(BR)CEO, 1-Element, NPN, Silicon, TO-92Motorola Semiconductor Products
    2N4401TFRTRANSISTORS600mA, 40V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92, LEAD-FREE, TO-92, 3 PINRochester Electronics LLC
    2N4401D74ZTRANSISTORSSmall Signal Bipolar Transistor, 0.6A I(C), 40V V(BR)CEO, 1-Element, NPN, Silicon, TO-92Fairchild Semiconductor Corporation
    2N4401BUTRANSISTORS600mA, 40V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92, LEAD FREE, TO-92, 3 PINRochester Electronics LLC
    2N4401TATRANSISTORSNPN Bipolar Junction Transistor, TO-92, 2000-FNFLDonsemi
    2N4401_J05ZTRANSISTORSSmall Signal Bipolar Transistor, 0.6A I(C), 40V V(BR)CEO, 1-Element, NPN, Silicon, TO-92, LEAD FREE, TO-92, 3 PINFairchild Semiconductor Corporation
    2N4401RLTRANSISTORS600mA, 40V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92, CASE 29-11, TO-226AA, 3 PINonsemi
    2N4401RLRAGTRANSISTORS600mA, 40V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92, LEAD FREE, CASE 29-11, TO-226AA, 3 PINRochester Electronics LLC
    2N4401RLRPTRANSISTORS600mA, 40V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92, CASE 29-11, TO-226AA, 3 PINRochester Electronics LLC
    2N4401-APTRANSISTORSSmall Signal Bipolar Transistor, 40V V(BR)CEO, 1-Element, NPN, Silicon, TO-92, ROHS COMPLIANT, PLASTIC PACKAGE-3Micro Commercial Components

    Specifications

    Package / Case: TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)

    Packaging: Bulk

    Operating Temperature: -55°C~150°C TJ

    Voltage - Collector Emitter Breakdown (Max): 40V

    Transistor Type: NPN

    Mounting Type: Through Hole

    2N4401 Applications

    1. It has the ability to switch high-current loads (up to 500mA).

    2. It can be used in a wide range of switching applications.

    3. Controlling the speed of the motor

    4. Inverter and other rectifier circuits

    5. It can be employed in Darlington Pair.

    2N4401 Package

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    2N4401 Manufacturer

    On Semiconductor (Nasdaq: ON) is a manufacturer engaging itself in reducing energy use. It features a comprehensive portfolio of power, signal management, and logic, custom solutions that are energy efficient. It acts as a world-class supply chain with high reliability and a network of manufacturing facilities, sales, offices, and design centers in key markets through North America, Europe, and the Asia Pacific regions.

    2N4401 vs 2N3904

    In every way, the 2N3904 and 2N4401 look to be quite similar parts. The 2N4401 has a greater current rating, but otherwise, they appear to be similar in pricing and other aspects.

    2N4401 vs 2N2222

    The 2N4401 transistor is extremely similar to the widely used 2N2222 NPN transistor. The 2N4401 and the 2N2222, on the other hand, have two major variances. When compared to 2N2222, the 2N4401 has a collector current limit of 500mA and power dissipation of 652mW, making it appropriate for medium loads, but it can also drive loads bigger than BC547.

    Frequently Asked Questions In 2N4401

    What is 2N4401?

    The 2n4401 is a bipolar junction transistor with an NPN junction that is used for general-purpose amplification and switching. Conduction is carried out by both charge carriers, i.e. electrons...

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  • 2SC945: Pinout, Equivalents, and Datasheet

    04/02/2022 at 02:08 • 0 comments

    2SC945 Description

    The 2SC945 is a high-frequency OSC NPN audio frequency amplifier transistor. It is an old Japanese bipolar audio NPN transistor, which has been widely used in high-frequency circuits for pre-amplification in amplifier applications.

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    2SC945 Features

      1.  Power dissipation of 0.4Watts. 

      2.  Collector current of 0.15A.

      3.  Collector-base Voltage: 60 volts

      4.  Operating and storage junction temperature range: -55°C to +150°C • Epoxy has a flammability grade of UL 94 V-0

      5.  Level 1 Moisture Sensitivity

    2SC945 Pinout

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    2SC945 CAD Model

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    Specifications

    Package:TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)

    Operating Temperature: -55°C~150°C TJ

    Pin Count: 3

    Packaging: Tape & Box (TB)

    Transistor Type: NPN

    Transition Frequency: 150MHz

    Number of Terminations: 3

    2SC945 Equivalents

    2SC2856TRANSISTORS, MPSA56/D26Z{OPTION18}TRANSISTORS, KSC2310-OTRANSISTORS, BC368-16TRANSISTORS, BSS38TRANSISTORS, ZTX455QTRANSISTORS, JC557ATRANSISTORS, BC546BRL1TRANSISTORS, ZTX450TRANSISTORS, BC546B-AMMOTRANSISTORS

    Applications

    1. Switches with low current

    2. Pre-amplifiers

    3. Low-power motor H-bridge circuits

    4. Circuits for audio frequency amplifiers

    5. Oscillator circuits

    Where To Use 2SC945

    Because it has a low base voltage of 5V, it can be easily controlled by an MCU/MPU if used as a switch. It can switch loads of up to 50 volts. With its complementary A733 PNP transistor, it can also be used as an oscillator.

    Package

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    Manufacturer

    Founded in 1991, Micro Commercial Components Corp. (MCC) is a manufacturer of high-quality discrete semiconductors to the consumer markets. It provides diodes, rectifiers, transistors, MOSFETs, voltage regulators and protection devices.

    Datasheet

    https://pdf.easybom.com/r/datasheets/microcommercialco-2sc945grap-datasheets-7531.pdf

    Check out more details on: https://www.easybom.com/blog/a/the-introduction-of-2sc945

  • PN2222 Vs. 2N2222: They Are Equivalents In Most Cases

    03/24/2022 at 03:33 • 0 comments

    PN2222 Overview

    The PN2222 is a popular NPN bipolar junction transistor that is used for common low-power intensification or swapping circuits. It is designed for low to intermediate current, modest power, and intermediate voltage, and it may operate at a moderately higher speed.

    2N2222 Overview

    The 2N2222 is a typical NPN bipolar junction transistor (BJT) used in low-power amplifying or switching applications. It is intended for low to medium current, low power, medium voltage, and relatively fast operation. It was originally created in the TO-18 metal container shown in the image.

    What Is 2N2222 Used For?

    The 2N2222 is a typical NPN bipolar junction transistor (BJT) used in low-power amplifying or switching applications. It is intended for low to medium current, low power, medium voltage, and relatively fast operation. It was originally created in the TO-18 metal container shown in the image.

    PN2222 Pinout

    PN Pinout.jpg

    2N2222 Pinout

    2N2222 PINOUT.jpg

    PN2222 CAD Model

    Symbol

    pn symbol.png

    Footprint

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    2N2222 CAD Model

    Symbol

    22 symbol.png

    Footprint

    22 footprint.png

    3D Model

    22 3d.png

    PN2222 Equivalents

    Part NumberDescriptionManufacturer
    PN2222TFTRANSISTORS600mA, 30V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92, LEAD FREE, TO-92, 3 PINRochester Electronics LLC
    PH2222TRANSISTORSTransistor,North American Philips Discrete Products Div
    PN2222-AMMOTRANSISTORSTRANSISTOR 600 mA, 30 V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92, BIP General Purpose Small SignalNXP Semiconductors
    PN2222/J18ZTRANSISTORS500mA, 30V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92Texas Instruments
    PN2222-T/RTRANSISTORSTRANSISTOR 600 mA, 30 V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92, BIP General Purpose Small SignalNXP Semiconductors
    PN2222/D81ZTRANSISTORS500mA, 30V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92Texas Instruments
    PN2222TFRTRANSISTORS600mA, 30V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92, LEAD FREE, TO-92, 3 PINRochester Electronics LLC
    PN2222TARTRANSISTORSSmall Signal Bipolar Transistor, 0.6A I(C), 30V V(BR)CEO, 1-Element, NPN, Silicon, TO-92, LEAD FREE, TO-92, 3 PINFairchild Semiconductor Corporation
    PN2222/D74ZTRANSISTORS500mA, 30V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92Texas Instruments
    PN2222/D28ZTRANSISTORS500mA, 30V, NPN, Si, SMALL SIGNAL TRANSISTOR, TO-92Texas Instruments

    The Electrical Characteristics Of PN2222 And 2N2222

    PARAMETERSYMBOLPN/2N2222 
    MINMAX
    Collector-Snitter SaturationvCE（sat）*
    		0.4
    Voltage
    		1.6
    Base-Dnitter Saturation VoltagevBE（sat）*
    		1.5 2.6
    D.C. Current GainhFE *100500
    Current Oain-Bandwidth Product
    		250
    Collec         Capac it anceCob
    		8
    Emitter-Base CapacitanceCib
    		25
    Collector-Base Time ConstantCgbb'

    Noise FigureNF

    Input Impedancehie・

    Voltage Feedback Ratiohre

    Small Si（＜nal Current Gainhfe

    Output Admittanceh°e

    td

    >span class="font0">Rise Timetr

    Storage Time


    Fall Timetf

    The Differences Between PN2222 And 2N2222

    From above, we can see that there are lot of similarities between them. The two components are interchangeable under most circumstances, but there are just a few differences, like the packages they use are not the same type.