MQ2N4092UB

Overview

The MQ2N4092UB is a single N-channel Junction Field-Effect Transistor (JFET) manufactured by Microchip Technology. It utilizes silicon technology and is housed in an SMD-3 surface-mount package for through-hole or surface mounting applications. The device features a drain-source breakdown voltage of 30 V and a gate-source breakdown voltage of -30 V. Key electrical parameters include a zero-gate-voltage drain current of 15 mA, a continuous drain current of 175 mA, and a drain-source on-resistance of 50 Ohms. Power dissipation is rated at 1.8 W, with an operating temperature range from -65 C to +200 C.

Feature Summary

• Single N-channel JFET configuration designed for signal processing and switching applications.
• Surface-mount SMD-3 packaging facilitates automated assembly and compact circuit board layouts.
• High thermal stability supports operation in extreme environments up to +200 C.
• Silicon construction ensures reliable performance within specified voltage and current limits.

Applications

• Analog signal amplification circuits
• Electronic switches and attenuators
• High-temperature sensor interface circuits

Procurement Notes

Verify the specific suffix UB against official Microchip documentation to confirm surface-mount compatibility and pinout definitions. Ensure the ordering quantity meets manufacturer minimums. Confirm RoHS compliance status as indicated in technical sheets. Validate that the SMD-3 package matches your PCB footprint requirements before finalizing procurement.

Selection Notes

Select this component when a surface-mount N-channel JFET with high thermal tolerance is required. Compare the 15 mA zero-gate-voltage drain current and 50 Ohm on-resistance against circuit design specifications. Ensure the 30 V breakdown voltage aligns with system voltage levels. Consider the 1.8 W power dissipation rating for thermal management in enclosed designs.

Part Context

This part belongs to the Microchip JFET family, specifically engineered for robust analog applications. It shares functional similarities with other MQ2N series devices but differs in packaging and specific electrical tolerances. The UB suffix typically denotes a specific tape-and-reel or bulk packaging variant for surface-mount integration, distinguishing it from through-hole equivalents like the TO-18 variants.

Replacement Considerations

Direct substitutes may include MQ2N4091UB or MQ2N4859UB if electrical parameters such as drain current and resistance are compatible. Verify package compatibility and thermal ratings before substitution. Cross-reference datasheets to ensure pinout alignment and voltage limits match the original design requirements.