- Datasheet Download Datasheet
- Stock & Prices $ Price & Stock for PN2222a
- Part Number PN2222a
- Manufacturer onsemi
- Pin Count 3
- Part Category Transistor BJT NPN
- Package Category Other
- Footprint Name Other - TO-92
- Released Date Oct 4, 2015
- Last Modified Date Mar 7, 2023 4:10 PM UTC
- Pinout / Pin List Click Here (Member Only)
PN2222a Details
-
Manufacturer Part Number:
PN2222A
-
Part Life Cycle Code:
Obsolete
-
Package Description:
CASE 29-11, TO-226AA, 3 PIN
-
ECCN Code:
EAR99
-
Manufacturer:
onsemi
-
YTEOL:
0
-
Collector Current-Max (IC):
0.6 A
-
Collector-Emitter Voltage-Max:
40 V
-
Configuration:
SINGLE
-
DC Current Gain-Min (hFE):
75
-
JEDEC-95 Code:
TO-92
PN2222a Frequently Asked Questions (FAQs)
-
The maximum collector current that can be handled by the PN2222A is 600mA, as specified in the datasheet. However, it's recommended to derate the current to ensure reliable operation and to prevent overheating.
-
To ensure stability in high-frequency applications, it's essential to use a bypass capacitor (typically 10nF to 100nF) between the emitter and ground to prevent oscillations. Additionally, a resistor (typically 1kΩ to 10kΩ) can be added in series with the base to reduce the gain and improve stability.
-
The recommended operating temperature range for the PN2222A is -55°C to 150°C. However, it's essential to derate the device's performance at higher temperatures to ensure reliable operation.
-
While the PN2222A can be used as a switch, it's not recommended for high-voltage applications (above 30V) due to its limited breakdown voltage. For high-voltage applications, consider using a transistor with a higher breakdown voltage, such as the 2N3904 or 2N4401.
-
To prevent thermal runaway, ensure that the transistor is properly heatsinked, and the ambient temperature is within the recommended operating range. Additionally, use a current-limiting resistor in series with the base to prevent excessive base current, which can lead to thermal runaway.
Trust Checks
Expert Contribution
System Verified
Community Approved
PN2222a Overview
Use the download button to access the PN2222a schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like PN222,
or try a keyword search, such as Small Signal Bipolar Transistors
Suggested Parts
If you searched for PN2222a, you might also be interested in these parts:
| Part Number |
|---|
| CMI-9605IC-0380T |
| ALSR035R000FE12 |
| CNY17-2 |
| 23J5R0E |
| C3225X7R1H106K250AC |
| SFH6757T |
| UA78M33CDCYG3 |
| BQ2057WSNTR |