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Product Detailed Parameters
- Description：JFET N-CH 30V TO92-3
- Series：-
- Mfr：onsemi
- Package：Bulk
- FET Type：N-Channel
- Voltage - Breakdown (V(BR)GSS)：30 V
- Drain to Source Voltage (Vdss)：-
- Current - Drain (Idss) @ Vds (Vgs=0)：25 mA @ 20 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：2 V @ 1 nA
- Input Capacitance (Ciss) (Max) @ Vds：14pF @ 20V
- Resistance - RDS(On)：60 Ohms
- Power - Max：625 mW
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA)
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The PN4392 is an N-channel Junction Field-Effect Transistor (JFET) manufactured by onsemi. It is housed in a TO-92-3 through-hole package and operates as a single-element device. Key electrical specifications include a gate-source breakdown voltage of 40 V, a gate-source cutoff voltage of 5 V, and a drain-source current of 75 mA at zero gate-source voltage. The component exhibits a drain-source on-resistance of 60 Ohms and a power dissipation rating of 625 mW. It supports a wide operating temperature range from -65°C to +150°C.
Feature Summary
- Utilizes silicon technology for robust junction field-effect transistor performance.
- Designed for through-hole mounting in standard TO-92-3 packages.
- Capable of high-temperature operation up to 150°C.
Applications
- Low-noise amplifier circuits
- High-impedance input stages
- Analog switching applications
Procurement Notes
Verify the manufacturer designation carefully, as Central Semiconductor also produces a part with the identical PN4392 designation. Confirm that the specific order corresponds to onsemi manufacturing data sheets rather than other vendors. Ensure the package type matches the required TO-92-3 form factor for the intended PCB layout.
Selection Notes
Select this component when a low-noise N-channel JFET is required for signal conditioning or amplification tasks. The high input impedance and specific breakdown characteristics make it suitable for precision analog front ends. Consider the thermal limits and package constraints during the design phase to ensure compatibility with the system's power budget.
Part Context
This component belongs to the family of small-signal field-effect transistors. While similar parts like the PN4393 exist, they may differ in specific electrical parameters such as feedback capacitance or maximum on-resistance. The PN4392 is distinct in its specific combination of 40V breakdown and 60 Ohm resistance profile within the TO-92 housing.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Cross-referencing with other manufacturers requires careful verification of pinouts and electrical limits to ensure functional equivalence without damaging the circuit.
