SMBJ5938A/TR13

Single Zener Diodes Overview

The SMBJ5938A/TR13 is a surface mount 2.0 W Zener diode from the SMBJ59 family, equivalent to JEDEC registered 1N5938 with identical electrical characteristics but lower thermal resistance. It operates within a junction temperature range of -65 °C to +150 °C and features a DO-214AA (SMB) J-bend package. The nominal Zener voltage is 7.5 V with a ±5% tolerance, tested at 6.0 mA. Maximum dynamic impedance is 3.0 Ω at IZT and 0.5 Ω at IZK. Leakage current is limited to 0.5 µA at 5.0 V reverse bias, while maximum regulator current reaches 266 mA.

Single Zener Diodes Feature Summary

• DO-214AA J-bend design enables high-density and low-profile mounting on printed circuit boards.
• Moisture classification Level 1 requires no dry pack storage per IPC/JEDEC standards.
• RoHS compliant devices available with e3 suffix for matte-tin plating.

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• Protection against high surge stresses

Single Zener Diodes Procurement Notes

Verify the specific part number suffix against official Microchip documentation to confirm plating type and packaging configuration. Confirm availability status as product lifecycles may change. Ensure compliance with RoHS directives if required by the application environment. Cross-reference datasheet revision history for any recent manufacturing or material changes.

Single Zener Diodes Selection Notes

Select this component for applications requiring precise voltage regulation in compact surface-mount designs. The 2.0 W power rating exceeds axial equivalents due to improved thermal resistance. Verify that the operating current remains within the specified limits to maintain accurate Zener voltage performance across the full temperature range.

Single Zener Diodes Part Context

This device belongs to the SMBJ59 series of silicon Zener diodes manufactured by Microchip Technology. The series provides JEDEC registered equivalents to the 1N5918–1N5924 axial lead series, adapted for surface mount technology. The SMBJ5938A specifically corresponds to the 7.5 V variant within this regulated voltage lineup.

Single Zener Diodes Replacement Considerations

JEDEC registered 1N5938B serves as the axial-lead equivalent with identical electrical characteristics.