A42 NPN Transistor
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![A42 NPN Transistor-1]()
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High Gain: They offer high current gain (hFE) values, enabling efficient amplification of weak signals in various electronic circuits.
Medium Power: With moderate power handling capabilities, they are used in applications that require amplification without excessive power dissipation.
Reliability: These transistors are known for their reliability and stability under normal operating conditions, contributing to their widespread use in electronic designs.
Switching Circuits: They are used in switching circuits to control higher currents or voltages based on a smaller control signal applied to the base.
-44%
A42 NPN Transistor
Available:In Stock
- Product SKU: TRANS037
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Warehouse Details
Specification
Description
The A42 is an NPN (negative-positive-negative) transistor, meaning it has a p-doped layer between two n-doped layers. It typically comes in a TO-126 package, which is a popular choice for medium-power transistors. As an NPN transistor, it amplifies current flowing from the collector to the emitter when a small current is applied to the base. It consists of three semiconductor regions: emitter (E), base (B), and collector (C).Features:
Low Noise: A42 transistors are often designed for low-noise operation, making them suitable for applications where signal fidelity is crucial, such as audio amplifiers.High Gain: They offer high current gain (hFE) values, enabling efficient amplification of weak signals in various electronic circuits.
Medium Power: With moderate power handling capabilities, they are used in applications that require amplification without excessive power dissipation.
Reliability: These transistors are known for their reliability and stability under normal operating conditions, contributing to their widespread use in electronic designs.
Applications:
Audio Amplifiers: A42 transistors are commonly employed in audio amplifiers for amplifying weak audio signals from sources like microphones or musical instruments.Switching Circuits: They are used in switching circuits to control higher currents or voltages based on a smaller control signal applied to the base.
Features
- Low Collector-Emitter Saturation Voltage
- High Breakdown Voltage
Technical Details
- Type: NPN
- Package: TO-92
- IC= 200mA
- VCEO= 305Vdc
- VCBO= 310Vdc
- VEBO= 5Vdc
- PD @ TA = 25°C Derate above 25°C= 625mW
- PD @ TC = 25°C Derate above 25°C= 1.5Watts
- DC Current Gain hFE @ TA = 25°C = 250
- TJ, Tstg= -55-150°C
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