JANTX1N6346US

Single Zener Diodes Overview

The JANTX1N6346US is a Zener voltage regulator diode manufactured by Microchip Technology. It features an 82V nominal Zener voltage with a test current of 1.5mA and dynamic impedance of 220 Ohms. The device utilizes a B-SQ MELF surface-mount package (D-5A-2) with dimensions of 5.08mm length, 2.62mm width, and 2.62mm height. It operates as a unidirectional silicon component within the military-qualified JANTX series.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless-glass construction for high-reliability environments
• Internal metallurgical bond ensuring structural integrity under stress
• Surface mount equivalent to JEDEC registered axial leaded packages

Single Zener Diodes Applications

• Military-grade voltage regulation circuits
• High-reliability power supply protection
• Avionics reference voltage generation

Single Zener Diodes Procurement Notes

Verify the specific qualification level and datasheet revision prior to procurement. Confirm that the B-SQ MELF package orientation matches the design footprint. Ensure compliance with MIL-PRF-19500/533 requirements if specified for the application. Check for RoHS exemptions as military parts may not be compliant.

Single Zener Diodes Selection Notes

Select this component when a hermetically sealed surface-mount Zener diode is required for critical applications. It serves as a direct surface-mount replacement for the axial 1N6346 series. Consider the 220 Ohm dynamic impedance and 1.5mA test current for circuit biasing. Verify thermal management needs for the small glass package.

Single Zener Diodes Part Context

This part belongs to the 1N6309 through 1N6355 series of 0.5W Zener diodes. The JANTX prefix indicates a specific military quality tier within the broader family. These devices are designed for applications where failure is not tolerated, offering robust performance compared to commercial equivalents.

Single Zener Diodes Replacement Considerations

Direct surface-mount replacements include other JANTX1N63xxUS variants with matching voltage ratings. Axial equivalents such as JAN1N6346 or JANTX1N6346 can be used if board space permits. Verify pinout compatibility when substituting with similar MELF packages.