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Product Detailed Parameters
- Description：JFET N-CH 40V 10MA TO92
- Series：J201
- Mfr：Linear Integrated Systems, Inc.
- Package：Bulk
- FET Type：N-Channel
- Voltage - Breakdown (V(BR)GSS)：40 V
- Drain to Source Voltage (Vdss)：40 V
- Current - Drain (Idss) @ Vds (Vgs=0)：200 µA @ 15 V
- Current Drain (Id) - Max：10 mA
- Voltage - Cutoff (VGS off) @ Id：300 mV @ 10 nA
- Input Capacitance (Ciss) (Max) @ Vds：4.5pF @ 15V
- 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
- Grade：-
- Qualification：-
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Overview
The J201 is a single N-channel Junction Field-Effect Transistor (JFET) housed in a TO-92 three-lead plastic package. It features a Gate-to-Source Breakdown Voltage of -40V and a continuous power dissipation of 350mW at 25°C. The device exhibits a low Gate-to-Source Cutoff Voltage ranging from -0.3V to -1.5V, with a Drain-to-Source Saturation Current typically between 0.2mA and 1.0mA. Forward transconductance is specified at 0.5mS, while input capacitance measures 4.5pF. Noise voltage is rated at 4.0nV/√Hz.
Feature Summary
- High gain performance suitable for low-level signal amplification
- Very low noise characteristics for sensitive applications
- Low cutoff voltage enabling operation with minimal supply voltages
- High input impedance for pre-amplifier configurations
Applications
- High-gain, low-noise amplifiers
- Low-current, low-voltage battery-powered amplifiers
- Infrared detector amplifiers
- Ultra-high input impedance pre-amplifiers
Procurement Notes
Verify the specific part number suffix against the manufacturer's ordering information to ensure correct package type and compliance status. Confirm RoHS compliance requirements match the procurement specifications. Check for custom part availability if standard electrical parameters require adjustment. Ensure the supplier provides official documentation to validate component authenticity and traceability.
Selection Notes
Select this component when designing circuits requiring high gain and low noise in a through-hole package. Consider the low cutoff voltage for compatibility with low-voltage power supplies. Evaluate the forward transconductance and input capacitance for frequency response requirements. Compare saturation current ranges to ensure proper biasing conditions are met within the target application environment.
Part Context
This component belongs to the J/SST201 series manufactured by Linear Integrated Systems. It serves as a direct replacement for legacy Siliconix devices. The series includes variants with different cutoff voltage ranges to accommodate diverse circuit design needs. The TO-92 package offers a cost-effective solution for general-purpose discrete semiconductor applications.
Replacement Considerations
The datasheet identifies the J/SST201 series as a direct replacement for the Siliconix J/SST201 series. Verify pinout compatibility and electrical parameter tolerances before substitution. Ensure the alternative component meets the same absolute maximum ratings and package dimensions.
