JAN1N6323US/TR

Single Zener Diodes Overview

The JAN1N6323US/TR is a military-qualified Zener voltage regulator with a nominal breakdown voltage of 9.1 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 at an end cap temperature of 150 °C. The device features a dynamic impedance of 6 Ω at the test current of 20 mA, with a maximum reverse leakage current of 1 µA at 25 °C. It utilizes a B-SQ MELF surface-mount package and is supplied in tape-and-reel format.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless glass construction with internal metallurgical bonds for high reliability.
• Qualified per MIL-PRF-19500/533 for JAN, JANTX, JANTXV, and JANS reliability levels.
• Inherently radiation hard and non-sensitive to electrostatic discharge (ESD).
• Surface mount equivalent of JEDEC registered axial leaded series.

Single Zener Diodes Applications

• High-reliability applications where failure cannot be tolerated.
• Voltage regulation over broad operating current and temperature ranges.
• Military and aerospace electronic systems requiring robust construction.

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 B-SQ MELF form factor. Ensure the voltage tolerance aligns with the design requirements, as tighter tolerances are available via different part nomenclature. Check for any specific environmental or testing documentation associated with the requested qualification level.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed, surface-mount Zener diode is required for harsh environments. The 9.1 V rating suits reference circuits needing stable breakdown characteristics. Consider the thermal resistance values for power derating calculations on the PCB. Verify that the 0.5 W steady-state dissipation meets the circuit's thermal management needs.

Single Zener Diodes Part Context

This device belongs to the 1N6309US through 1N6355DUS series of 0.5 W Zener regulators. It serves as the surface-mount counterpart to the traditional axial-leaded DO-35 packages. The series covers a wide voltage range from 2.4 V to 200 V, providing options for various regulation needs while maintaining consistent mechanical and reliability standards across the family.

Single Zener Diodes Replacement Considerations

Equivalent parts include JAN1N6323CUS and JAN1N6323DUS for tighter voltage tolerances. Commercial grade versions such as 1N6323US are available but lack military qualification. Axial-leaded equivalents like JAN1N6323 exist for through-hole designs. Verify compatibility regarding package dimensions and terminal finishes when substituting.