SMAJ4462CE3/TR13

Single Zener Diodes Overview

The SMAJ4462CE3/TR13 is a 1.5-watt Zener diode manufactured by Microsemi Corporation, housed in the DO-214AC (SMAJ) surface-mount package. It provides a nominal Zener voltage of 7.5 volts with a ±2% tolerance, indicated by the 'C' suffix. The device operates within a temperature range of -55°C to +150°C and features metallurgically bonded contacts for stress relief. It meets or exceeds the electrical performance of the JEDEC registered 1N4462 series while offering double the surge performance through a larger active die element.

Single Zener Diodes Feature Summary

• Provides superior surge protection against ESD and EFT transients per IEC standards
• Features thermally efficient design with J-bend contacts for stress relief
• Offers high reliability voltage regulation in low-profile surface mount locations

Single Zener Diodes Applications

• High reliability voltage regulation in low profile surface mount locations
• Airborne or satellite applications requiring lightweight components
• Protection from ESD and EFT transients per IEC61000-4-2 and -4-4

Single Zener Diodes Procurement Notes

Verify the specific ordering suffixes to confirm compliance requirements. The 'e3' suffix indicates RoHS compliance with matte-tin plating. Confirm the 'C' designation ensures the required ±2% voltage tolerance. Check for availability of military screening prefixes if JAN, JANTX, or JANTXV specifications are necessary for the application.

Single Zener Diodes Selection Notes

Select this component when a 7.5-volt regulation point is required in a compact surface-mount footprint. The SMAJ package allows for easier automatic handling compared to MELF styles. Ensure the circuit can accommodate the 1.5-watt steady-state power dissipation and verify that the thermal resistance characteristics align with the system's heat management strategy.

Single Zener Diodes Part Context

This part belongs to the SMAJ4460 thru SMAJ4496 series of 1.5-watt Zener diodes. The series covers a voltage range from 3.3 volts to 200 volts. These devices are designed as surface-mount equivalents to the axial 1N4460 through 1N4496 series, providing identical electrical characteristics but with enhanced surge capabilities due to the larger active die element used in the plastic encapsulation.

Single Zener Diodes Replacement Considerations

The SMAJ4462CE3/TR13 serves as a direct surface-mount replacement for the axial 1N4462B Zener diode. When substituting, ensure the new component supports the required 1.5-watt power rating and fits the DO-214AC footprint. Verify that the ±2% tolerance matches the original design specifications.