2N2222 NPN n-type, General Purpose Transistors (max. 600mA) - TO-92

PN2222 (2N2222) is the most common NPN bipolar junction transistor available in the market, hence the collector and emitter will be left open (Reverse biased) when the base pin is held at ground and will be closed (Forward biased) when a signal is provided to base pin. 2N2222 has a gain value of 110 to 800, this value determines the amplification capacity of the transistor. The maximum amount of current that could flow through the Collector pin is 800mA, hence we cannot connect loads that consume more than 600mA using this transistor. To bias a transistor we have to supply current to base pin, this current (I_B) should be limited to 5mA.

When this transistor is fully biased then it can allow a maximum of 600mA to flow across the collector and emitter. This stage is called Saturation Region and the typical voltage allowed across the Collector-Emitter (V­_CE) or Base-Emitter (V_BE) could be 200 and 900 mV respectively. When base current is removed the transistor becomes fully off, this stage is called as the Cut-off Region and the Base Emitter voltage could be around 660 mV.

Features

• Analog signals as well as switching applications
• General-Purpose Amplifier Transistor
• Switching and Linear application DC and VHF Amplifier applications
• Switching loads under 200mA
• Sensor Circuits
• Audio Preamplifiers
• Audio Amplifier Stages
• Darlington Pairs

Specifications

• Package-Type: TO-92
• Transistor Type: NPN
• Max Collector Current(I_C): 600mA
• Max Collector-Emitter Voltage (V_CE): 30V
• Max Collector-Base Voltage (V_CB): 60V
• Max Emitter-Base Voltage (VEBO): 5V
• Max Collector Dissipation (Pc): 625 miliWatt
• Max Transition Frequency (fT): 300 MHz
• Minimum & Maximum DC Current Gain (h_FE): 35 – 300
• Max Storage & Operating temperature Should Be: -55 to +150 Centigrade

Package Content

• 1 x 2N2222 TO-92

PNP Complementary

• 2N2907

Replacement and Equivalent

• 2N2219, 2N1613, 2N2218, 2N2792, NTE123A, 2N3904
  (Pin configuration of SOME transistors are different from 2N2222, check pin configuration before replacing in a circuit)

How to Safely Long Run in a Circuit

To get good and long term performance from this transistor it is suggested to not drive loads more than 100mA, always use a suitable base resistor, do not provide collector-emitter voltage more than 40V and always operate or store in temperatures above -55 centigrade and below +150 centigrade.