1N4698CUR-1E3

Overview

The Microchip Technology 1N4698CUR-1E3 is a surface mount Zener voltage regulator in the DO-213AA (SOD80/MLL34) MELF package. It provides an 11 V nominal Zener voltage with a tight 2% tolerance, indicated by the 'C' suffix. The device operates within a junction temperature range of -65°C to +175°C and dissipates up to 0.5 W. Key electrical parameters include a Zener test current of 50 µA, a maximum reverse leakage current of 0.05 µA at 8.4 V, and a maximum DC Zener current of 43.2 mA.

Feature Summary

• Hermetically sealed glass surface mount construction with internal metallurgical bonding for high reliability.
• Tight voltage tolerance of 2% ensures precise regulation across operating conditions.
• Inherently radiation hard and non-sensitive to electrostatic discharge per MIL-STD-750 method 1020.
• RoHS compliant commercial grade availability with matte-tin plating options.

Applications

• Voltage regulation over broad operating current and temperature ranges.
• High-reliability aerospace and defense circuitry requiring radiation hardness.
• Precision reference applications utilizing low capacitance characteristics.

Procurement Notes

Verify that the specific ordering suffix matches the required tolerance level and compliance status. Confirm the manufacturer source, as historical production may involve Microsemi or onsemi entities. Ensure the procurement channel supports the specific RoHS-compliant matte-tin terminal finish if required for assembly processes. Check for any available up-screening options referencing MIL-PRF-19500 if higher reliability standards are mandated for the application environment.

Selection Notes

Select this component when a hermetically sealed surface mount Zener diode with strict 2% voltage accuracy is required. The DO-213AA package offers a compact footprint suitable for space-constrained designs. Consider the 0.5 W power dissipation capability and the wide -65°C to +175°C operating temperature range for harsh environments. The low leakage current and minimal capacitance make it suitable for sensitive analog signal paths where precision and noise performance are critical.

Part Context

This part belongs to the 1N4678UR-1 through 1N4717UR-1 series of 0.5 W surface mount Zener diodes. The series covers a voltage selection from 1.8 V to 43 V. The 1N4698 variant specifically targets the 11 V regulation point. The 'CUR-1E3' designation indicates a commercial grade, 2% tolerance, RoHS-compliant device in the standard MELF surface mount package.

Replacement Considerations

Direct surface mount equivalents include the 1N4698UR-1 (standard tolerance) or 1N4698UR-1D (1% tolerance). For leaded through-hole replacements, the 1N4698 in the DO-35 package serves as a mechanical alternative, though packaging and thermal characteristics differ significantly.

FAQ

What does the 'C' suffix indicate in the part number?

The 'C' suffix denotes a Zener voltage tolerance of 2%, which is tighter than the standard 5% tolerance offered in the base series.

Is the device sensitive to electrostatic discharge?

No, the device is non-sensitive to ESD per MIL-STD-750 method 1020.

What is the maximum reverse leakage current specified?

The maximum reverse leakage current is 0.05 µA, measured at a reverse voltage of 8.4 V.