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Product Detailed Parameters
- Description：TRANS 2NPN 45V 30MA TO-78-6
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Bulk
- Transistor Type：2 NPN (Dual)
- Current - Collector (Ic) (Max)：30mA
- Voltage - Collector Emitter Breakdown (Max)：45V
- Vce Saturation (Max) @ Ib, Ic：-
- Current - Collector Cutoff (Max)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：50 @ 10µA, 5V
- Power - Max：600mW
- Frequency - Transition：40MHz
- Operating Temperature：-
- Mounting Type：Through Hole
- Package / Case：TO-78-6 Metal Can
- Supplier Device Package：TO-78-6
- Grade：-
- Qualification：-
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Overview
The Central Semiconductor Corp. 2N2641 is a dual NPN low noise transistor housed in a TO-78 metal can package. It features a maximum collector current of 30 mA and a collector-emitter breakdown voltage of 45 V. The device provides a minimum DC current gain (hFE) of 50 at a collector current of 10 µA and a collector-emitter voltage of 5 V. The transition frequency is specified at 10 MHz, with a maximum power dissipation of 600 mW at an ambient temperature of 25°C.
Feature Summary
- Dual NPN configuration within a single hermetically sealed metal can package
- Optimized for low noise amplification applications
- High reliability construction suitable for demanding environments
Applications
- Low noise amplifier circuits
- General purpose amplification stages
- Signal processing systems requiring high reliability
Procurement Notes
This component has been officially classified as End of Life by the manufacturer. No replacement part numbers are currently available from Central Semiconductor Corp. Buyers must verify availability through authorized distributors or secondary markets, acknowledging that supply is limited to existing stock or last-time buys.
Selection Notes
Engineers should evaluate alternative dual NPN transistors in compatible packages due to the discontinued status of this specific part number. Verify that substitute components meet the required low noise specifications, current ratings, and physical dimensions to ensure proper integration into existing designs without modification.
Part Context
The 2N2641 belongs to a family of dual transistors manufactured by Central Semiconductor Corp. in the TO-78 case style. This series includes various NPN and PNP configurations designed for different amplification and switching requirements. The entire line of TO-78 packaged devices has been transitioned to End of Life status.
Replacement Considerations
No direct replacement part numbers are listed by the manufacturer for the 2N2641. Designers must source equivalent components from other manufacturers or utilize generic dual NPN transistors that match the electrical parameters and physical footprint.
FAQ
What is the current production status of the 2N2641?
The 2N2641 is classified as End of Life (EOL) by Central Semiconductor Corp., meaning it is no longer in active production.
Does the manufacturer provide a direct replacement for this component?
No, the official documentation indicates that there is no designated replacement part number for the 2N2641.
What is the maximum power dissipation rating?
The total power dissipation is rated at 600 mW when both dies are equal power at an ambient temperature of 25°C.
