1N4468CUS/TR

Single Zener Diodes Overview

The Microchip Technology 1N4468CUS/TR is a surface mount Zener voltage regulator with a nominal breakdown voltage of 13.0 V and a maximum dynamic impedance of 8 Ohms at the test current of 19 mA. It operates within a junction temperature range of -65°C to +175°C and dissipates up to 1.5 W of steady-state power. The device features a hermetically sealed voidless glass package with an internal metallurgical bond, conforming to MIL-PRF-19500/406 standards for JANTXV reliability levels.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless hard glass construction with tungsten slugs
• Internal Category 1 metallurgical bonds for robust mechanical integrity
• Triple-layer passivation for enhanced environmental protection
• Qualified per MIL-PRF-19500/406 for high-reliability military applications

Single Zener Diodes Applications

• High-reliability aerospace systems requiring failure-intolerant components
• Military-grade voltage regulation circuits
• Radiation-hardened electronic subsystems
• Precision reference voltage generation in extreme temperature environments

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required reliability level (JAN, JANTX, JANTXV, or JANS) and tolerance code (C for 2%). Confirm RoHS compliance status, as it applies only to commercial grade versions. Ensure the tape and reel packaging adheres to EIA-481-B standards if bulk quantities are required. Cross-reference the datasheet revision against the manufacturing date code to confirm current production specifications.

Single Zener Diodes Selection Notes

Select this component when a surface mount equivalent of the axial 1N4468 series is needed for space-constrained designs. The 13.0 V rating suits mid-range regulation tasks. Verify thermal management requirements against the 1.5 W dissipation limit and the 20°C/W thermal resistance from junction to end cap. Consider the 2% tolerance option if tighter voltage accuracy than standard 5% parts is necessary for the circuit design.

Single Zener Diodes Part Context

This part belongs to the 1N4460US through 1N4496US series of 1.5 Watt glass Zener diodes. It serves as the surface mount MELF (D-5A) counterpart to the traditional DO-41 axial leaded packages. The series covers a wide voltage range from 3.3 V to 200 V, offering standardized JEDEC registration with optional military qualification levels for diverse industrial and defense applications.

Single Zener Diodes Replacement Considerations

Direct replacements include other manufacturers' surface mount Zener diodes rated at 1.5 W with 13 V nominal voltage and similar impedance characteristics. For military specifications, verify compatibility with MIL-PRF-19500/406 qualified equivalents. Axial DO-41 variants like the 1N4468 may be used if board layout permits, though footprint adaptation will be required.