MMBZ5237BTS-7-F

Overview

The MMBZ5237BTS-7-F is a triple surface mount Zener diode array manufactured by Diodes Incorporated. It integrates three isolated Zener diodes within an SOT-363 package, designed for automated assembly processes. The nominal Zener voltage is 8.2 V, with a range of 7.79 V to 8.61 V at a test current (IZT) of 20 mA. Maximum Zener impedance is 8 Ohms at IZT and 500 Ohms at IZK = 0.25 mA. Maximum reverse leakage current is 3.0 µA at VR = 6.5 V. Power dissipation is 200 mW, with a thermal resistance (RθJA) of 625 °C/W. Operating and storage temperature ranges from -65°C to +150°C.

Feature Summary

• Integrates three electrically isolated Zener diodes in a single ultra-small surface mount package.
• Qualified to AEC-Q101 standards for high reliability applications.
• Totally lead-free and fully RoHS compliant, halogen and antimony free.

Applications

• Automated assembly processes requiring compact multi-channel voltage regulation.
• High reliability electronic circuits meeting automotive qualification standards.
• Multi-voltage reference generation in space-constrained PCB layouts.

Procurement Notes

Verify the specific ordering suffix matches the required packaging configuration. Confirm compliance with environmental directives such as RoHS 2 if applicable. Ensure the component marking code KS7 aligns with the intended design specifications. Check for any recent updates to the datasheet revision or mechanical dimensions before finalizing procurement documentation.

Selection Notes

Select this component when multiple independent voltage references are needed in a minimal footprint. The SOT-363 package supports automated pick-and-place operations. Verify that the total power dissipation requirements across all three channels remain within the 200 mW limit under operating conditions. Consider the thermal resistance value for heat dissipation planning on FR4 substrates.

Part Context

This part belongs to the MMBZ5221BTS through MMBZ5259BTS series of triple surface mount Zener diode arrays. The series offers various Zener voltage options ranging from 2.4 V to 39 V. All variants share the same SOT-363 package and general electrical characteristics, differing primarily in their specific Zener voltage ratings and associated impedance values.

Replacement Considerations

Other parts in the MMBZ5221BTS-MMBZ5259BTS series may serve as alternatives if different voltage levels are acceptable. Cross-reference with other manufacturers offering triple Zener arrays in SOT-363 packages, ensuring pinout compatibility and matching electrical parameters such as impedance and leakage current.