1N4148UB/TR

Single Diodes Overview

The Microchip Technology 1N4148UB/TR is a small-signal switching diode featuring ceramic surface-mount construction. It operates within a junction temperature range of -65°C to +200°C and withstands a maximum breakdown voltage of 100 V with a working peak reverse voltage of 75 V. The device supports an average rectified current of 200 mA at 75°C and a non-repetitive surge current of 2 A. Electrical characteristics include a forward voltage of 1.2 V at 100 mA, a reverse recovery time of 5 ns, and a capacitance of 4 pF at 0 V bias.

Single Diodes Feature Summary

• Surface mount equivalent of the JEDEC registered 1N4148 number
• Very low capacitance for high frequency applications
• Very fast switching speeds with minimal reverse recovery times
• Qualified per MIL-PRF-19500/116 for JAN, JANTX, and JANTXV levels

Single Diodes Applications

• High frequency data lines
• RS-232 & RS-422 interface networks
• Ethernet 10 Base T
• LAN
• Computers

Single Diodes Procurement Notes

Verify that the specific ordering suffix matches the required reliability level (JAN, JANTX, or JANTXV) as defined in the part nomenclature. Confirm the polarity configuration (Unidirectional, Common Anode, Common Cathode, or Doubler) aligns with circuit requirements. Ensure the tape and reel packaging complies with EIA-418D standards if automated assembly is utilized.

Single Diodes Selection Notes

Select this component when a robust, military-grade switching diode is required for surface mount designs. The ceramic package provides superior thermal stability compared to plastic alternatives. Consider the specific reverse recovery time and capacitance values for high-speed signal processing applications where standard silicon diodes may introduce excessive delay or loading effects.

Single Diodes Part Context

This component belongs to the 1N4148 family of switching diodes manufactured by Microchip Technology. It serves as a surface-mount alternative to traditional axial-leaded versions, offering similar electrical performance in a compact form factor. The product line includes various polarity options and qualification levels to suit diverse industrial and commercial electronic design needs.

Single Diodes Replacement Considerations

Direct substitutes include other 1N4148 series diodes from different manufacturers, provided they meet the same voltage, current, and speed specifications. Verify pinout compatibility and package dimensions before implementation.