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Product Detailed Parameters
- Description：JFET N-CH 40V TO18
- Series：-
- Mfr：Microchip Technology
- 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)：30 mA @ 20 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：-
- Input Capacitance (Ciss) (Max) @ Vds：16pF @ 20V
- Resistance - RDS(On)：30 Ohms
- Power - Max：360 mW
- Operating Temperature：-65°C ~ 175°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-206AA, TO-18-3 Metal Can
- Supplier Device Package：TO-18 (TO-206AA)
- Grade：-
- Qualification：-
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Overview
The MQ2N4091 is a single N-channel Junction Field-Effect Transistor (JFET) manufactured by Microchip Technology. It utilizes silicon technology and is housed in a TO-18-3 through-hole package. Key electrical specifications include a drain-source breakdown voltage of 40 V, a gate-source breakdown voltage of 40 V, and a continuous drain current of 30 mA. The device exhibits a typical zero-gate-voltage drain current of 6.6 mA and an on-resistance of 30 Ohms. Power dissipation is rated at 360 mW, with an operating temperature range spanning from -65°C to +175°C.
Feature Summary
- Single N-channel JFET configuration for discrete circuit applications
- High-temperature operation capability up to 175°C
- Robust voltage ratings with 40 V breakdown limits for both drain-source and gate-source terminals
Applications
- Low-noise analog signal amplification
- High-impedance input stages in electronic circuits
- Constant current source implementations
Procurement Notes
Verify the specific part number against official Microchip Technology documentation to ensure accuracy. Confirm that the TO-18-3 through-hole package aligns with your board design requirements. Check for any recent product change notices or obsolescence announcements directly from the manufacturer before finalizing procurement plans.
Selection Notes
Select this component when a high-temperature capable N-channel JFET is required. Ensure the 30 mA continuous drain current and 360 mW power dissipation meet the thermal and load demands of the application. Verify compatibility with the TO-18-3 package style for proper mounting and integration into the target system.
Part Context
This component belongs to the Microchip Technology JFET family, specifically designed for general-purpose analog applications. It is part of a series offering various current levels within similar voltage and package constraints, allowing designers to choose based on specific transconductance and current requirements while maintaining consistent packaging and thermal characteristics.
Replacement Considerations
Consult official Microchip Technology substitution guides for verified alternatives. Cross-reference parameters such as Vgs(off), Idss, and package type to ensure functional equivalence without modifying the existing circuit design.
