2N5088 Transistor : Pinout, Equivalent, Datasheet

2N5088 is an NPN bipolar junction transistor that comes in a TO-92 package and is mostly used for small signal general purpose switching applications. 

2N5088 is a bipolar current controlled device, unlike MOSFET which is a unipolar voltage controlled device. When a voltage is applied at the base terminals, it gets biased and draws current which is used to control large current at the emitter and collector side. 

It is designed to be used for low noise and high gain amplification purposes and it can also be used as a switch. As an amplifier, it is capable to amplify many types of low gain signals to high gain with extra noise cutoff. 

It can also be used as a separate amplifier at the output of different audio circuits to drive a small 2 to 3 inches speaker. On the other hand, when used as a switch it is capable to drive a load of 100mA continues and 200mA in peak mode.

Footprint

3D Model

●Package Type: TO-92

●Transistor Type: NPN

●Low Current (max. 100nA)

●Low Voltage (max. 30V)

●Collector-Emitter Voltage: 30 Vdc

●Collector-Base Voltage: 35 Vdc

●Emitter-Base Voltage: 3.0 Vdc

●DC Current Gain: 1200 hFe (max.)

●Operating and Junction Temperature: –55 to +150 °C

●Max Collector Dissipation (Pc): 625 milliwatt

●Max Transition Frequency (fT): 50 MHz

●Minimum & Maximum DC Current Gain (hFE): 300 – 900

●Higher Gain Value

●Low Noise

●Pb Free Device

ON Semiconductor 2N5088G technical specifications, attributes, parameters and parts with similar specifications to ON Semiconductor 2N5088G.

2N5089, SS9014, MPS650, MPS6602 (Pin configuration of these equivalent transistors may different from each other, therefore it is recommended to first confirm pin configuration of the replacement transistor.)

2N5088 can be used for many general purpose applications, due to its DC high gain feature it will perform well in audio preamplifiers, audio amplifiers, signal amplifications, etc. it can also be used as a switch to drive different loads under 100mA.

This transistor like all can be used either as a switch or as an amplifier. The Base-Emitter voltage of this transistor is 3V so you just have to supply this voltage across the base and emitter of the transistor to induce a base current into the transistor. This transistor will make it forward biased and thus closes the connection between collector and emitter. However, one important thing to notice is the Base resistor a.k.a current limiting resistor. As the name suggests this resistor will limit the current flowing through the transistor to prevent it from damaging. The value for this resistor can be calculated using the formula

RB = VBE / IB

To make things simple we have shown a simplified circuit to make a transistor as switch. In actual circuit, modifications might be required. I have used a base voltage of 5V and a value of 1K as a current limiting resistor.

Simplified Circuit

-Low noise stages in audio equipment

-Switching loads under 100mA

-Audio preamplifiers

-Mic amplifier

-Audio amplifiers and in their stages

-Sensor circuits

-Darlington pairs

TO-92 Package

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