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Product Detailed Parameters
- Description：JFET N-CH 40V TO92-3
- Series：-
- Mfr：onsemi
- Package：Bulk
- FET Type：N-Channel
- Voltage - Breakdown (V(BR)GSS)：40 V
- Drain to Source Voltage (Vdss)：-
- Current - Drain (Idss) @ Vds (Vgs=0)：30 µA @ 10 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：600 mV @ 1 nA
- Input Capacitance (Ciss) (Max) @ Vds：3pF @ 10V
- Resistance - RDS(On)：-
- Power - Max：350 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 PN4117 is an N-channel Junction Field-Effect Transistor (JFET) manufactured by onsemi. It is designed for low current DC and audio applications, serving as an input stage for sub-picoamp instrumentation or high impedance signal sources. The device utilizes silicon technology and is housed in a TO-92 through-hole package. Key electrical characteristics include a gate-source breakdown voltage of -40 V and a maximum power dissipation of 350 mW. The component operates within a temperature range of -55°C to +150°C.
Feature Summary
- Designed for low current DC and audio applications
- Provides excellent performance as an input stage for sub-picoamp instrumentation
- Suitable for high impedance signal sources
Applications
- Sub-picoamp instrumentation input stages
- High impedance signal source interfacing
- Low current DC applications
- Audio circuit applications
Procurement Notes
Verify the specific ordering suffix and package variant when sourcing, as Fairchild Semiconductor part numbers integrated into ON Semiconductor may have undergone nomenclature changes. Confirm RoHS compliance status and check for any process change notifications regarding 2D barcoding or manufacturing site updates before finalizing procurement plans.
Selection Notes
Select this component for circuits requiring low leakage and low capacitance characteristics typical of N-channel JFETs. Ensure the application voltage does not exceed the -40 V gate-source breakdown rating. Consider the TO-92 package constraints for thermal management, given the 350 mW power dissipation limit, and verify compatibility with through-hole assembly processes.
Part Context
The PN4117 belongs to a family of N-channel JFETs that includes variants such as the PN4118 and PN4119. These devices are often used interchangeably in general-purpose amplifier and switching roles depending on specific transconductance requirements. The product line reflects the integration of Fairchild Semiconductor components into the ON Semiconductor portfolio.
Replacement Considerations
Compatible substitutes include MMBF4117, PN4118, and PN4119. Verify pinout compatibility and specific electrical parameter tolerances, particularly drain current and transconductance, before substituting.
