1N4996US

Single Zener Diodes Overview

The Microchip Technology 1N4996US is a surface mount Zener voltage regulator with a nominal breakdown voltage of 390 V at a test current of 3 mA. It features a maximum power dissipation of 5 Watts and operates within a junction temperature range of -65°C to +175°C. The device exhibits a dynamic impedance of 2500 Ohms at the test current and maintains a standard voltage tolerance of ±5%. Maximum reverse leakage current is specified at 2500 µA, while the maximum continuous regulator current is rated at 12.0 mA.

Single Zener Diodes Feature Summary

• Hermetically sealed voidless-glass construction with internal metallurgical bonds for high reliability
• Military qualification compliant with MIL-PRF-19500/356 standards
• Inherently radiation hard design suitable for harsh environments
• ESD robustness verified per MIL-STD-750 Method 1020

Single Zener Diodes Applications

• High-reliability aerospace systems where failure cannot be tolerated
• Radiation-hardened electronic circuits
• Military-grade voltage regulation modules

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required military grade (JAN, JANTX, JANTXV, or JANS) as defined in MIL-PRF-19500/356. Confirm package designation E (D-5B) and termination finish specifications against the project requirements before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a 390 V Zener diode is required in a surface mount configuration. Ensure the application supports the 5 W power rating and the operating temperature limits up to 175°C. Verify that the 2500 Ohm dynamic impedance meets the circuit's noise and regulation constraints.

Single Zener Diodes Part Context

This part belongs to the 1N4954US through 1N4996US series of 5 Watt glass Zener regulators. These components are designed for surface mount applications using the E package outline. They serve as hermetically sealed alternatives to axial-leaded versions for demanding industrial and defense electronics.

Single Zener Diodes Replacement Considerations

Equivalent axial-leaded parts include the 1N4996 without the US suffix. Surface mount replacements must match the D-5B package dimensions and 5 W power dissipation capabilities.