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Product Detailed Parameters
- Description：JFET N-CH 30V TO92
- Series：-
- Mfr：onsemi
- Package：Bulk
- FET Type：N-Channel
- Voltage - Breakdown (V(BR)GSS)：30 V
- Drain to Source Voltage (Vdss)：30 V
- Current - Drain (Idss) @ Vds (Vgs=0)：5 mA @ 15 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：500 mV @ 10 nA
- Input Capacitance (Ciss) (Max) @ Vds：10pF @ 15V (VGS)
- Resistance - RDS(On)：100 Ohms
- Power - Max：350 mW
- Operating Temperature：-65°C ~ 150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 Long Body
- Supplier Device Package：TO-92 (TO-226)
- Grade：-
- Qualification：-
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Overview
The MPF4393G is an N-channel depletion-mode JFET switching transistor manufactured by onsemi in a TO-92 package. It features a maximum drain-source voltage of 30 Vdc and a total device dissipation of 350 mW at 25°C. The zero-gate-voltage drain current (IDSS) ranges from 5.0 to 30 mAdc, with a static drain-source on resistance (rDS(on)) up to 100 Ohms. The gate-source breakdown voltage is 30 Vdc, and the forward gate current rating is 50 mAdc. Operating temperatures range from -65 to +150°C.
Feature Summary
- N-channel depletion mode operation for analog switching applications
- High input impedance characteristics suitable for signal isolation
- Pb-free packaging available compliant with environmental standards
Applications
- Analog switch circuits
- Chopper stabilization systems
- Signal routing matrices
Procurement Notes
Verify the specific ordering suffix 'G' indicates Pb-free status as documented in the manufacturer's ordering information table. Confirm the package style matches the required TO-92 lead configuration (straight or bent) for your assembly process. Ensure the component revision aligns with the latest datasheet publication number MPF4392/D to guarantee accurate electrical parameter validation.
Selection Notes
Select this component when a low-cost, through-hole N-channel JFET is required for discrete analog switching. The MPF4393 variant offers a lower IDSS range compared to the MPF4392, which may influence the required gate bias voltage for turn-off. Evaluate the thermal derating curve if operating above 25°C ambient temperature to ensure power dissipation limits are not exceeded.
Part Context
This part belongs to the MPF4392/MPF4393 family of JFET switching transistors designed for general-purpose analog applications. It serves as a direct replacement for older Motorola/NXP MPF4393 devices, maintaining pin compatibility and electrical specifications within the TO-92 form factor. The series is optimized for cost-sensitive designs requiring reliable depletion-mode field-effect transistor performance.
Replacement Considerations
The MPF4393RLRP is a tape-and-reel version of the same device. Cross-reference with MPF4393RLRPG for Pb-free reel options. Verify that substitute JFETs match the 30V VDS rating and TO-92 pinout (Drain-Source-Gate) to prevent circuit damage.
