1N4466US/TR

Single Zener Diodes Overview

The Microchip Technology 1N4466US/TR is a surface mount Zener voltage regulator with an 11 V nominal breakdown voltage. It operates within a -65 °C to +175 °C junction temperature range and dissipates up to 1.5 W at 25 °C ambient. The device features a D-5A-2 (MELF) package, 5 % standard tolerance, and 23 mA test current. Maximum reverse leakage is 500 nA at the specified voltage, with a dynamic impedance of 6 Ohms at test current.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless glass construction with internal metallurgical bonds for high reliability.
• Triple-layer passivation provides robust protection against environmental stressors.
• Inherently radiation hard and non-sensitive to electrostatic discharge per MIL-STD-750 method 1020.

Single Zener Diodes Applications

• Voltage regulation in military-grade electronic systems.
• High-reliability circuits where component failure is not tolerated.
• Radiation-hardened aerospace and defense electronics.

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required reliability level and RoHS compliance status. Confirm the package type corresponds to the intended surface mount design. Ensure the manufacturer documentation aligns with the requested qualification levels before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component for applications requiring hermetic sealing and wide thermal operation. Verify that the 1.5 W power dissipation rating meets the circuit requirements at the maximum operating temperature. Check if tighter voltage tolerances are necessary, as standard versions provide 5 % accuracy.

Single Zener Diodes Part Context

This part belongs to the 1N4460US through 1N4496US series of 1.5 Watt glass Zener diodes. These devices serve as surface mount equivalents to popular JEDEC registered axial-lead series. They are qualified under MIL-PRF-19500/406 for JAN, JANTX, JANTXV, and JANS levels.

Single Zener Diodes Replacement Considerations

Direct replacements include other parts from the 1N4460US–1N4496US series or equivalent commercial grade MELF Zener diodes. Verify pinout compatibility and ensure the replacement meets the same hermetic sealing and radiation hardness requirements.