JAN1N4461C

Single Zener Diodes Overview

The JAN1N4461C is a military-qualified, hermetically sealed glass Zener diode with a nominal voltage of 6.8 V and a 2% tolerance. It operates within a junction temperature range of -65°C to +175°C and dissipates up to 1.5 W at a lead temperature of +112°C. The device features a maximum dynamic impedance of 2.5 Ohms at the test current of 37 mA and a maximum reverse leakage current of 1.0 µA at 4.08 V. It withstands a continuous regulator current of 210 mA and a surge current of 2.1 A.

Single Zener Diodes Feature Summary

• Hermetically sealed void-less glass construction with internal metallurgical bonds for high reliability.
• Qualified per MIL-PRF-19500/406 for use in critical applications where failure is not tolerated.
• Inherently radiation hard as described in Microsemi MicroNote 050.

Single Zener Diodes Applications

• Voltage regulation in high-reliability aerospace systems
• Reference voltage sources in military-grade electronic circuits
• Overvoltage protection in harsh environment instrumentation

Single Zener Diodes Procurement Notes

Verify that the ordering suffix 'C' confirms the 2% tolerance level as specified in the part nomenclature section. Ensure the procurement documentation explicitly states qualification to MIL-PRF-19500/406 JAN level. Confirm the package type matches the DO-41 axial-lead specification. Validate that the component is sourced from an authorized distributor to guarantee authenticity and traceability for military applications.

Single Zener Diodes Selection Notes

Select this component when a precise 6.8 V reference with tight 2% tolerance is required in a ruggedized environment. The DO-41 package supports flexible axial-lead mounting suitable for through-hole PCB assembly or wire-wrap techniques. Consider the thermal resistance and power derating curves if operating near the maximum junction temperature limit of +175°C.

Single Zener Diodes Part Context

This component belongs to the 1N4460–1N4496 series of 1.5 Watt glass Zener diodes manufactured by Microchip Technology (formerly Microsemi). The series offers Zener voltages ranging from 3.3 to 200 volts with various tolerance options. The JAN1N4461C specifically denotes the military-grade version with 2% tolerance, distinct from commercial or other military qualification levels like JANTX or JANS.

Single Zener Diodes Replacement Considerations

Direct substitutes include other JAN1N4461C units from qualified manufacturers. Cross-reference with equivalent MIL-PRF-19500/406 qualified parts ensuring identical 6.8 V nominal voltage, 2% tolerance, and DO-41 package compatibility. Verify that any replacement maintains the same hermetic sealing and radiation hardness characteristics.