JANTX1N2845B

Single Zener Diodes Overview

The JANTX1N2845B is a high-power Zener diode manufactured by Microchip Technology, designed for robust voltage regulation in demanding environments. It features a nominal Zener voltage of 100 V with a tolerance of ±5%, capable of dissipating up to 50 W of power when properly mounted and heat-sinked. The device utilizes a TO-204AD (TO-3) through-hole package, ensuring reliable performance across an extended operating temperature range from -65°C to +175°C. Qualified under MIL-PRF-19500/114, this component belongs to the JAN, JANTX, and JANTXV series, providing stable regulation for voltages ranging from 3.9 V to 200 V within its broader family context.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with a nominal 100 V Zener voltage and ±5% tolerance.
• Capable of handling high power dissipation up to 50 W with adequate thermal management.
• Qualified per MIL-PRF-19500/114 standards for military-grade reliability.
• Operates reliably across an extreme temperature range from -65°C to +175°C.

Single Zener Diodes Applications

• Military aerospace power supply systems requiring high-reliability voltage reference.
• Industrial equipment protection circuits utilizing ruggedized components.
• High-power voltage regulation modules in harsh environmental conditions.

Single Zener Diodes Procurement Notes

Verify the specific suffix designation against official Microchip documentation to confirm the exact qualification level, as JANTX indicates a specific tier within the MIL-PRF-19500/114 qualified series. Ensure that procurement channels provide traceability certificates consistent with military specifications. Confirm thermal mounting requirements are met to sustain the 50 W power rating safely. Cross-reference the manufacturer part number with current datasheets to validate any recent product change notifications or obsolescence notices before finalizing orders.

Single Zener Diodes Selection Notes

Select the JANTX1N2845B when a 100 V regulation point is required in applications subject to severe thermal or mechanical stress. Its TO-3 package facilitates effective heat sinking for high-power scenarios exceeding standard surface-mount capabilities. Consider the extended temperature range if the operational environment falls outside commercial limits. Evaluate the need for MIL-PRF-19500/114 compliance versus commercial alternatives based on system reliability targets and budget constraints.

Single Zener Diodes Part Context

This component is part of Microchip's extensive portfolio of high-power Zener diodes, specifically the 1N28xxB series. These devices are JEDEC registered and offer a broad range of voltage values from 3.9 V to 200 V. The JANTX variant represents a screened quality level within the military qualification spectrum, distinct from the base JAN or higher-tier JANTXV options. This family is engineered for durability in critical infrastructure and defense electronics where failure is not an option.

Single Zener Diodes Replacement Considerations

Direct substitutes include other JANTX-qualified Zener diodes from the same 1N28xxB series with identical voltage and power ratings. Verify pinout compatibility and thermal resistance characteristics when considering cross-brand replacements. Ensure any alternative meets the same MIL-PRF-19500/114 qualification standards if military compliance is mandatory.