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Complementary Silicon High Power Transistor NPN 2N3055A

2N3055A Characteristics / Parameters
Transistor NPN High Power Bipolar Device in an Hermetically sealed TO3 Metal Package.
Component Characteristics | Component Parameters |
Type Designator | 2N3055A |
Transistor OutlinePackage Type | CASE 1-07: TO-204AA |
Mounting | Through Hole |
Family | Bipolar Power |
Material of Transistor | Silicon |
Polarity | NPN |
Maximum Power Dissipation | 115W |
Maximum Collector to Base Voltage | 100V |
Base Current | 7A DC |
Maximum Collector to Emitter Voltage | 60V |
Maximum Emitter Base Voltage | 7V |
Maximum Collector Current | 15A |
Minimum hFE | 10 |
Maximum hFE | 70 |
Function | Amplification / Switch |
Transition Frequency | 0.8 MHz |
Manufacturers |
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Three modes of Operating Region of Transistors are:
- Active Region
- Saturation Region
- Cut-off Region
1- Active Region Characteristics:
- In 'Active Region' , the transistor operate as an 'Amplifier'
- The Junction Base-Emitter is forward Biased.
- The Junction Collector-Base is Reverse Biased.
2- Saturation Region Characteristics:
- In 'Saturation' region, the transistor operates as an 'Closed Switch'.
- The 'Base' Electrode is Connected to Supply Voltage [ Vcc ]
- The Junction Base-Emitter Voltage is greater than 0.6V i.e VBE > 0.6V.
- The Junction Base-Emitter is Forward Biased.
- The Junction Collector-Base is Forward Biased.
- Maximum Saturation Collector Current [ Ic ] flows, i.e [ Ic=Vcc/RL ]
- This condition of transistor is act as a 'Fully-ON' and this is 'Saturation Region'.
- Collector to Emitter Voltage [ VCE ] is approximately equal to Zero ideally. i.e [ VCE = 0V ]
3- Cut-Off Region Characteristics:
- In 'Cut-off' region, the transistor operate as an 'Open Switch'.
- The 'Base' Electrode is Grounded to zero Voltage [ 0V ].
- The Junction Base-Emitter Voltage is less than 0.6V i.e VBE < 0.6V.
- The Junction Base-Emitter is Reverse Biased.
- The Junction Collector-Base is Reverse Biased.
- No Collector Current [ Ic ] flows, i.e [ Ic=0 ].
- This condition of transistor is act as a 'Fully-OFF ' and this is 'Cut-Off Region'.
- Collector to Emitter Voltage [ VCE ] is approximately equal to Supply Voltage [ VCC ] [ VCE = VCC ]