1N4148UR-1E3/TR

Single Diodes Overview

The Microchip Technology 1N4148UR-1E3/TR is a surface mount equivalent of the JEDEC registered 1N4148 switching diode. It features hermetically sealed glass construction with metallurgical bonding in a DO-213AA package. The device supports a maximum breakdown voltage of 100 V and a working peak reverse voltage of 75 V. It handles an average rectified forward current of 200 mA at 75°C ambient temperature, with a non-repetitive sinusoidal surge current capability of 2 A. Operating temperatures range from -65°C to +175°C.

Single Diodes Feature Summary

• Hermetically sealed glass construction with metallurgically bonded double-plug design.
• Very low capacitance characteristics suitable for high-speed applications.
• Fast switching speeds with minimal reverse recovery times.

Single Diodes Applications

• High frequency data lines
• RS-232 & RS-422 interface networks
• Ethernet 10 Base T
• Low capacitance steering or blocking
• LAN and computers

Single Diodes Procurement Notes

Verify that the specific ordering suffix matches the required qualification level and compliance status. The 'e3' suffix indicates RoHS compliance, which applies only to commercial grade versions. Confirm the tape and reel packaging configuration aligns with standard EIA-296 specifications if automated mounting is required. Ensure the component source documentation explicitly confirms these attributes before finalizing procurement.

Single Diodes Selection Notes

Select this component when a surface mount solution is required for high-density mounting applications. It serves as a direct surface mount equivalent to the axial-leaded 1N4148. Consider its thermal resistance values and derating curves for circuit designs operating near maximum temperature limits. Verify compatibility with the mounting surface system's coefficient of expansion to ensure mechanical reliability.

Single Diodes Part Context

This part belongs to the 1N4148 family of small signal switching diodes manufactured by Microchip Technology. It is available in various packages including DO-35, UB, UB2, and UBC. Military grade variants such as JAN, JANTX, and JANTXV are qualified per MIL-PRF-19500/116 standards. The commercial version offers RoHS compliance options.

Single Diodes Replacement Considerations

Direct replacements include other 1N4148 series devices in compatible surface mount packages. Verify pinout polarity and package dimensions match the existing footprint. Check electrical parameters against the original design requirements to ensure adequate performance margins.