1N4698UR-1/TR

Overview

The Microchip Technology 1N4698UR-1/TR is a surface mount Zener voltage regulator with a nominal breakdown voltage of 11.0 V and a standard tolerance of ±5%. It operates within a junction temperature range of -65°C to +175°C and dissipates up to 0.5 W. The device utilizes a hermetically sealed glass DO-213AA (MELF) package with metallurgically bonded internal construction. Electrical characteristics include a test current of 50 µA, a maximum reverse leakage current of 0.05 µA at the specified voltage, and a maximum DC Zener current of 43.2 mA.

Feature Summary

• Hermetically sealed glass DO-213AA MELF package for environmental protection
• Internal metallurgical bond between metal slugs and silicon die for high reliability
• Surface mount equivalent of JEDEC registered 1N4678 through 1N4717 series
• Available in tape and reel packaging configuration

Applications

• Voltage regulation over broad operating current and temperature ranges
• High-reliability electronic assemblies requiring radiation hardness
• ESD-sensitive circuit protection applications

Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging rather than bulk supply. Confirm RoHS compliance status as commercial versions may differ from military screening options. Ensure the ordering nomenclature matches the required voltage tolerance level, as tighter tolerances require distinct part number suffixes.

Selection Notes

Select this component when a surface mount Zener diode with hermetic sealing is required. The 11.0 V rating suits mid-range reference applications. Consider the 50 µA test current for low-power biasing requirements. Verify thermal derating curves against the intended PCB footprint and ambient temperature conditions.

Part Context

This device belongs to the 1N4678UR-1 through 1N4717UR-1 series of 0.5 watt glass surface mount Zener diodes. The series provides voltage selections from 1.8 to 43 volts. Standard tolerance is ±5%, with 1% and 2% options available under different part numbers. The series serves as the surface mount counterpart to the traditional axial leaded JEDEC registered devices.

Replacement Considerations

Direct replacements include other manufacturers' DO-213AA MELF Zener diodes rated at 11.0 V with 500 mW power dissipation. Verify that substitute components meet the same hermetic sealing and metallurgical bonding specifications if high reliability is required.