JAN1N4487DUS

Single Zener Diodes Overview

The JAN1N4487DUS is a surface mount Zener voltage regulator with an 82.0 V nominal breakdown voltage, housed in a D-5A (MELF) package. It operates within a junction temperature range of -65°C to +175°C and dissipates up to 1.5 W at 25°C ambient. The device features a maximum dynamic impedance of 160 Ohms at the test current of 3.0 mA, with a continuous current rating of 17 mA. It is qualified per MIL-PRF-19500/406 for high-reliability applications.

Single Zener Diodes Feature Summary

• Hermetically sealed void-less glass construction with internal metallurgical bonds
• Triple-layer passivation for robust environmental protection
• Inherently radiation hard design suitable for harsh environments
• Non-sensitive to electrostatic discharge

Single Zener Diodes Applications

• High-reliability military aerospace systems
• Voltage regulation in extreme temperature environments
• Radiation-hardened electronic circuits
• Critical power supply reference stabilization

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required reliability level and tolerance. Confirm RoHS compliance status if applicable, as commercial versions differ from military grades. Ensure the MELF package dimensions align with the target PCB footprint layout requirements before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required for critical voltage regulation. Consider the 160 Ohm dynamic impedance and 17 mA continuous current limits during circuit design. Verify thermal derating curves are respected for operating temperatures exceeding 25°C ambient conditions.

Single Zener Diodes Part Context

This part belongs to the 1N4460US through 1N4496US series of 1.5 Watt glass Zener diodes. These devices share identical mechanical packaging and qualification standards but vary in nominal Zener voltage and test currents. The series provides industry-standard replacements for axial-lead JEDEC registered components in surface mount form factors.

Single Zener Diodes Replacement Considerations

Direct equivalents include other manufacturers' MIL-PRF-19500/406 qualified 1N4487 variants in the D-5A package. Verify that substitute parts maintain the same 82V nominal voltage and 160 Ohm maximum dynamic impedance specifications.