1N2975B

Overview

The JANTXV1N2975B is a military-grade Zener diode manufactured by Microchip Technology. It features an 11V nominal Zener voltage with a maximum dynamic impedance of 3 Ohms. The device supports a test current of 230mA and operates within a stud-mount configuration. Qualified per MIL-PRF-19500/124, it utilizes internal solder bond construction and hermetic sealing for reliability in harsh environments.

Feature Summary

• Hermetically sealed welded construction
• Internal solder bond technology
• Military qualification per MIL-PRF-19500/124

Applications

• Voltage regulation in aerospace systems
• High-reliability power supply circuits
• Harsh environment electronic protection

Procurement Notes

Verify the specific suffix requirements against the official datasheet to ensure correct military grade and tolerance levels. Confirm RoHS status as non-compliant for this specific part number. Check for factory special order status and lead times directly with the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when high-reliability voltage reference is required in space-constrained applications due to its stud-mount package. Ensure the circuit design accommodates the 10W power dissipation capability and the specific thermal management needs associated with metal-glass DO-4 packaging.

Part Context

This part belongs to the 1N2970B through 1N3015B series of 10W Zener diodes. It represents the JANTXV qualification level, offering tighter tolerances than JAN or JANTX grades. The series covers voltages from 3.9V to 200V, providing standardized options for critical military and industrial applications.

Replacement Considerations

Direct substitutes include other JANTXV1N2975B units from authorized distributors. Cross-reference with 1N2975RBE3 for equivalent electrical specifications, though package and manufacturer differences may require mechanical adaptation.