2N4092UB/TR

Overview

The Microchip Technology 2N4092UB/TR is an N-channel Junction Field-Effect Transistor (JFET) designed for surface-mount applications. It features a drain-source voltage rating of 40 V and a gate-source breakdown voltage of 40 V. The device supports a maximum continuous drain current of 15 mA at 20 V and offers an on-state resistance of 50 Ohms. With a power dissipation capacity of 360 mW, it operates within a temperature range of -65°C to +175°C. The component utilizes a UB-3 package with dimensions of 2.5 mm by 3.1 mm.

Feature Summary

• Surface-mount construction in a compact UB-3 package for automated assembly
• High thermal stability supporting operation up to 175°C
• Low on-resistance characteristics for efficient signal switching

Applications

• Analog signal switching circuits
• Low-noise amplifier input stages
• Precision attenuation networks

Procurement Notes

Verify the specific suffix TR indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status as regulatory requirements vary by region. Ensure the supplier provides official Microchip documentation to validate the part number against the UB-3 package specifications. Cross-reference the manufacturer's latest datasheet for any updates to electrical limits or handling instructions before finalizing procurement orders.

Selection Notes

Select this JFET for designs requiring low on-resistance and high-speed switching capabilities in a small form factor. The 40 V breakdown voltage suits moderate voltage applications. Consider the 360 mW power dissipation limit for thermal management. The wide operating temperature range makes it suitable for industrial environments where standard commercial components may fail.

Part Context

This component belongs to Microchip's JFET family, specifically engineered for surface-mount technology. It serves as a modern alternative to through-hole equivalents like the MX2N4092, offering similar electrical performance in a footprint optimized for PCB space constraints. The UB-3 package distinguishes it from larger axial or radial packages found in older transistor generations.

Replacement Considerations

The MX2N4092 is a through-hole equivalent with identical electrical ratings but different mounting requirements. Direct substitution requires adapting the PCB layout from surface-mount to through-hole. Verify that the application circuit can accommodate the physical size difference between the UB-3 package and the TO-18-3 package without mechanical interference.