MMSZ5235B-7-F

Single Zener Diodes Overview

The MMSZ5235B-7-F is a surface mount Zener diode from Diodes Incorporated, housed in an SOD123 package. It features a nominal Zener voltage of 6.8V with a range of 6.46V to 7.14V at a test current of 20mA. The device has a maximum Zener impedance of 5Ω and a maximum reverse leakage current of 3.0µA at 5.0V. It offers 500mW power dissipation at 75°C case temperature and 370mW at 25°C ambient temperature. The thermal resistance junction-to-ambient is 338°C/W. Operating and storage temperatures range from -65°C to +150°C.

Single Zener Diodes Feature Summary

• Totally lead-free and fully RoHS compliant
• Halogen and antimony free green device
• Qualified to AEC-Q101 standards for high reliability

Single Zener Diodes Applications

• General purpose medium current applications
• Automated assembly processes

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix matches the required qualification level and packaging quantity. The -7-F suffix indicates commercial grade qualification with 3,000 units per tape and reel. Confirm that the SOD123 package dimensions and marking codes align with your board design requirements. Ensure compliance with moisture sensitivity level 1 handling procedures during assembly.

Single Zener Diodes Selection Notes

Select this component when a 6.8V Zener reference is needed in a compact SOD123 footprint. Consider the 5Ω impedance and 20mA test current for regulation accuracy. Evaluate the 370mW derating curve for thermal management in ambient conditions above 25°C. Verify compatibility with automated pick-and-place equipment due to the tape and reel packaging format.

Single Zener Diodes Part Context

This part belongs to the MMSZ5221B-MMSZ5259B series of 500mW surface mount Zener diodes. The series covers a wide voltage range from 2.4V to 39V. All variants share the same SOD123 mechanical outline and general electrical characteristics structure, differing primarily in nominal Zener voltage and associated test parameters.

Single Zener Diodes Replacement Considerations

Check for equivalent Zener voltage and impedance specifications in other manufacturers' SOD123 packages. Verify pinout polarity and thermal resistance values match the original design constraints. Ensure any substitute part meets the same AEC-Q101 qualification if automotive reliability is required.

Single Zener Diodes FAQ

What is the maximum Zener impedance for the MMSZ5235B?

The maximum Zener impedance (ZZT) at the test current of 20mA is 5Ω.

Is the MMSZ5235B-7-F suitable for high-reliability automotive applications?

The standard -7-F suffix denotes commercial qualification. For automotive use, verify if the Q-7-F variant is available, as it is qualified to AEC-Q101 standards.