MMBZ5257BTW_R1_00001

Overview

The MMBZ5257BTW_R1_00001 is a surface mount silicon Zener diode from the Panjit MMBZ5221BTW to MMBZ5267BTW series. It features a nominal Zener voltage of 33V with a tolerance range of 31.35V to 34.65V. The device operates within a power dissipation limit of 200mW and utilizes an SOT-363 plastic package. Electrical characteristics include a maximum Zener impedance (ZZT) of 58Ω at a test current of 3.8mA, and a maximum reverse leakage current of 25μA at 30V. It supports an operating junction temperature range of -55°C to +150°C.

Feature Summary

• Planar die construction for automated assembly suitability
• Lead-free compliance with EU RoHS 2.0 standards
• Green molding compound meeting IEC 61249 specifications

Applications

• Voltage regulation in portable electronics
• Protection circuits in consumer devices
• Reference voltage generation in instrumentation

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm packaging details such as reel size or tape configuration. Ensure that the component meets all required environmental certifications for the intended deployment region before finalizing procurement orders.

Selection Notes

Select this component when a 33V Zener reference is required in a compact SOT-363 footprint. Consider the 58Ω dynamic impedance and 200mW thermal limits during circuit design to ensure stable operation under expected load conditions and ambient temperatures.

Part Context

This part belongs to the MMBZ52xxBTW series of single-element Zener diodes manufactured by Panjit International Inc. The series covers a wide voltage range from 2.4V to 75V, providing standardized options for various voltage regulation needs in surface mount applications.

Replacement Considerations

Direct replacements must match the 33V nominal voltage, SOT-363 package, and 200mW power rating. Verify equivalent impedance and leakage specifications to maintain circuit performance integrity.