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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)：4 mA @ 15 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：6 V @ 1 nA
- Input Capacitance (Ciss) (Max) @ Vds：-
- Resistance - RDS(On)：-
- 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 PN4303 is an N-Channel General Purpose Amplifier JFET designed for low-level audio and general-purpose applications with high impedance signal sources. It features a Drain-Gate Voltage of 30 V, Gate-Source Voltage of -30 V, and Gate-Source Breakdown Voltage of -30 V at -1.0 µA. The device operates within a junction temperature range of -55 to 150 °C, with a total device dissipation of 625 mW. Zero-Gate Voltage Drain Current ranges from 4.0 to 10 mA at -15 V, while Gate Reverse Current is limited to -1.0 nA.
Feature Summary
- Designed primarily for low level audio and general purpose applications
- Suitable for use with high impedance signal sources
- N-Channel JFET configuration
Applications
- Low level audio amplification
- General purpose signal processing
- High impedance source interfacing
Procurement Notes
Verify the manufacturer origin carefully, as Fairchild Semiconductor was acquired by onsemi. Confirm that the specific unit received matches the Rev. A datasheet specifications provided in the local source material. Ensure the TO-92 package dimensions and pinout (Drain, Source, Gate) align with your PCB layout requirements before finalizing procurement.
Selection Notes
Select this component when designing circuits requiring an N-Channel JFET for high impedance input stages or low-level audio amplification. Consider the -30 V breakdown voltage and 625 mW power dissipation limits during thermal design. Verify compatibility with high impedance signal sources to ensure optimal performance in the intended application environment.
Part Context
The PN4303 is an N-Channel JFET originally manufactured by Fairchild Semiconductor, now part of onsemi. It belongs to the family of general-purpose amplifier devices intended for low-level audio and signal processing tasks. The component utilizes a TO-92 package and is characterized by its high input impedance capabilities suitable for interfacing with sensitive signal sources.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation.
FAQ
What is the maximum Drain-Gate Voltage rating?
The maximum Drain-Gate Voltage (VDG) rating is 30 V.
What is the operating junction temperature range?
The operating and storage junction temperature range is -55 to 150 °C.
What is the typical Zero-Gate Voltage Drain Current?
The Zero-Gate Voltage Drain Current (IDSS) ranges from 4.0 to 10 mA when VDS is -15 V and VGS is 0.
