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Product Detailed Parameters
- Description：JFET N-CH 40V UB
- 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)：8 mA @ 20 V
- Current Drain (Id) - Max：-
- Voltage - Cutoff (VGS off) @ Id：-
- Input Capacitance (Ciss) (Max) @ Vds：16pF @ 20V
- Resistance - RDS(On)：80 Ohms
- Power - Max：360 mW
- Operating Temperature：-65°C ~ 175°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：3-SMD, No Lead
- Supplier Device Package：UB
- Grade：Military
- Qualification：MIL-PRF-19500/431
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Overview
The MQ2N4093UB is an N-channel Junction Field-Effect Transistor (JFET) manufactured by Microchip Technology. It utilizes silicon technology and is housed in a surface-mount SMD-3 package designed for automated assembly. The device supports a drain-source breakdown voltage of 30 V and a gate-source breakdown voltage of 30 V. It operates with a continuous drain current of 175 mA and maintains an on-resistance of 25 Ohms. Thermal performance includes a power dissipation rating of 1.8 W, allowing operation within a temperature range from -65°C to +200°C.
Feature Summary
- High-temperature operational capability up to 200°C
- Surface-mount packaging for automated processing
- Silicon-based N-channel construction
Applications
- High-temperature electronic circuits
- Automotive electronics systems
- Industrial control applications
Procurement Notes
Verify the specific suffix 'UB' against official Microchip documentation to confirm exact mechanical dimensions and marking codes. Ensure the selected component matches the required surface-mount footprint and thermal specifications for the target application environment. Cross-reference datasheet revisions to confirm compliance with current manufacturing standards.
Selection Notes
Select this component when high-temperature stability and surface-mount integration are required. The 1.8 W power dissipation rating supports moderate current loads in compact designs. Verify that the 30 V voltage ratings align with circuit requirements. Consider the SMD-3 package constraints during PCB layout to ensure adequate thermal management and solder joint integrity.
Part Context
This part belongs to the Microchip JFET family, specifically engineered for robust performance in demanding environments. The MQ2N4093UB variant extends standard JFET capabilities through enhanced thermal tolerance and surface-mount compatibility. It serves as a specialized discrete semiconductor solution for applications requiring reliable field-effect transistor behavior under elevated temperatures.
Replacement Considerations
Consult official Microchip substitution guides for verified equivalents. Generic replacements may not match the 200°C operating limit or SMD-3 package dimensions.
