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Product Detailed Parameters
- Description：THROUGH-HOLE UJT
- Series：-
- Mfr：Central Semiconductor Corp
- Package：Box
- Voltage：-
- Power Dissipation (Max)：300 mW
- Voltage - Output：5V
- Voltage - Offset (Vt)：-
- Current - Gate to Anode Leakage (Igao)：-
- Current - Valley (Iv)：4 mA
- Current - Peak：2 µA
- Package / Case：TO-206AA, TO-18-3 Metal Can
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Overview
The Central Semiconductor Corp 2N4852 is a PN silicon unijunction transistor housed in a TO-18 metal can package. It features an interbase voltage ratio of 0.70 to 0.85 at V_B2B1=10V and a base resistance of 4.7 to 9.1 kΩ. The device supports a maximum emitter reverse voltage of 30V, an interbase voltage of 35V, and an RMS power dissipation of 300mW. Peak emitter current reaches 1.5A under specific duty cycle constraints.
Feature Summary
- Designed for timing, sensing, and trigger circuits
- Utilizes a robust TO-18 metal case construction
- Features defined peak and valley operating points
Applications
- Timing circuits
- Sensing applications
- Trigger circuits
Procurement Notes
This component has been transitioned to End of Life status by the manufacturer. Orders are restricted to available stock only, with no further production planned. Verify availability directly with the supplier or authorized distributors before finalizing procurement plans.
Selection Notes
Select this part for legacy designs requiring a silicon unijunction transistor with a specific intrinsic standoff ratio range. Ensure the application accommodates the discontinued status and limited supply chain availability associated with this specific component number.
Part Context
The 2N4852 belongs to a family of PN silicon unijunction transistors manufactured by Central Semiconductor Corp. It shares the same physical package and general electrical limits as the 2N4851 and 2N4853, differentiated primarily by its intrinsic standoff ratio and related electrical characteristics.
Replacement Considerations
No official replacement part numbers are listed by the manufacturer. Contact [email protected] for assistance locating alternate sources if necessary.
FAQ
What is the intrinsic standoff ratio range for the 2N4852?
The intrinsic standoff ratio (η) ranges from 0.70 to 0.85 when measured at an interbase voltage of 10V.
Is the 2N4852 currently in production?
No, the product has been discontinued and is classified as End of Life. Sales are limited to existing inventory.
What is the maximum peak emitter current?
The maximum peak emitter current is 1.5A, provided the duty cycle is less than or equal to 1% and the pulse repetition rate is less than or equal to 10pps.
