1N2995RB

Overview

The Microchip Technology 1N2995RB is a hermetically sealed stud-mount Zener diode designed for voltage regulation applications. It features an internal solder bond construction and operates within a temperature range of -65°C to +175°C. The device provides a nominal Zener voltage of 47V with a tolerance of ±5%. Rated for a power dissipation of 10W, it exhibits a maximum reverse leakage current of 10µA and a dynamic impedance of 14 Ohms at a test current of 55mA. The component utilizes the DO-213AA (DO-4) package style.

Feature Summary

• Hermetically sealed welded construction ensuring environmental stability
• Internal solder bond design for robust mechanical integrity
• Extended operating temperature capability up to +175°C

Applications

• High-reliability voltage reference circuits
• Industrial power supply regulation
• Military and aerospace electronic systems

Procurement Notes

Verify the specific manufacturer lot code and date code upon receipt to ensure compliance with project reliability standards. Confirm that the received unit matches the 1N2995RB designation and DO-213AA package form factor. Inspect the stud surface for damage prior to mounting. Ensure handling procedures account for the hermetic seal integrity during installation.

Selection Notes

Select this component when a high-power, hermetically sealed Zener diode is required for harsh environments. The 10W rating and wide temperature range distinguish it from lower-power surface mount alternatives. Consider the stud-mount configuration for thermal management needs where chassis mounting is feasible. Verify that the 47V regulation point aligns with the circuit design requirements.

Part Context

This part belongs to the single Zener diode family offered by Microchip Technology. It shares the hermetic sealing and internal solder bond characteristics common to the 1N29xx series. The RB suffix typically denotes specific testing or screening criteria compared to standard variants, though functional parameters remain consistent with the base 1N2995 specification.

Replacement Considerations

The NJSEMI-1N2995RB is a documented equivalent from New Jersey Semi-Conductor Products. Both parts share identical electrical ratings and package dimensions. Verify pinout orientation and mounting hole specifications before substituting to ensure mechanical compatibility.