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Product Detailed Parameters
- Description：TRANS 2NPN 45V 40MA TO-78-6
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Bulk
- Transistor Type：2 NPN (Dual)
- Current - Collector (Ic) (Max)：40mA
- Voltage - Collector Emitter Breakdown (Max)：45V
- Vce Saturation (Max) @ Ib, Ic：-
- Current - Collector Cutoff (Max)：-
- DC Current Gain (hFE) (Min) @ Ic, Vce：50 @ 1µA, 5V
- Power - Max：600mW
- Frequency - Transition：100MHz
- 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 2N2722 is a dual NPN low noise transistor housed in a TO-78 metal can package. It features a collector-base voltage (V_CBO) of 45 V and a collector-emitter voltage (V_CEO) of 45 V. The device supports a maximum continuous collector current (I_C) of 40 mA. DC current gain (h_FE) ranges from 100 to 250 when tested at I_C = 10 mA and V_CE = 5 V. Saturation characteristics include a V_CE(sat) of 1.0 V max at I_C = 10 mA. The transition frequency (f_T) is specified at 10 MHz, with base-emitter voltage matching within 10%.
Feature Summary
- Dual NPN configuration designed for low noise applications
- Metal TO-78 hermetic packaging for robust environmental sealing
- High DC current gain suitable for sensitive amplification stages
Applications
- Low noise amplifier circuits
- RF signal processing stages
- Precision analog switching applications
Procurement Notes
This component has been officially classified as End of Life by the manufacturer. No replacement part numbers are currently available in the official documentation. Procurement requires verification of last-time buy eligibility or existing inventory availability through authorized distributors. Engineering support may be requested via email for alternate sourcing assistance.
Selection Notes
Designers should evaluate the 45 V voltage limits and 40 mA current capacity against circuit requirements. The TO-78 package necessitates specific mounting considerations due to its metal construction. Verify thermal dissipation needs, as total power dissipation is limited to 600 mW shared between both dies. Confirm that the 10 MHz transition frequency meets the intended signal bandwidth requirements.
Part Context
The 2N2722 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 variants optimized for low noise or general amplification. All devices in this specific TO-78 lineup have been discontinued and marked as End of Life status.
Replacement Considerations
No direct replacement part numbers are listed in the official discontinuation notice. Customers are advised to contact [email protected] for technical data or alternate source recommendations.
