MX2N4861UB/TR

Overview

The MX2N4861UB/TR is a single N-channel Silicon Junction Field-Effect Transistor (JFET) manufactured by Microchip Technology. Designed for surface-mount applications, this component features a maximum drain-source breakdown voltage of 30 V and a gate-source breakdown voltage of -30 V. It supports a continuous drain current of 80 mA at zero gate-source voltage and exhibits an on-resistance of 60 Ohms. The device handles a power dissipation of 1.8 W and operates within a temperature range of -65°C to +200°C.

Feature Summary

• High-temperature silicon construction enabling operation up to +200°C
• Single N-channel configuration optimized for compact surface-mount integration
• Robust electrical ratings with 30 V breakdown limits for reliable switching

Applications

• High-reliability analog signal processing circuits
• Precision low-noise amplifier stages
• Harsh environment electronic systems requiring extended thermal tolerance

Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with high-temperature soldering profiles required for components rated up to +200°C. Cross-reference datasheet revisions to validate pinout consistency before finalizing procurement orders.

Selection Notes

Select this JFET when circuit designs demand high thermal stability and robust voltage handling in a small surface-mount footprint. Evaluate the 60 Ohm on-resistance and 80 mA current capability against load requirements. Confirm that the operating environment stays within the specified -65°C to +200°C range to ensure long-term reliability.

Part Context

This component belongs to Microchip's high-reliability discrete semiconductor portfolio, specifically designed for demanding industrial and aerospace applications. As part of the MX series, it emphasizes durability and performance under extreme conditions, distinguishing it from standard commercial-grade transistors through its specialized silicon processing and rigorous quality controls.

Replacement Considerations

Consult official Microchip substitution guides for verified equivalents. Generic replacements may not match the specific thermal or electrical characteristics required for high-reliability environments.