MMBZ5254ELT1G

Single Zener Diodes Overview

The onsemi MMBZ5254ELT1G is a single-channel Zener voltage regulator diode designed for surface-mount applications. It features a nominal Zener voltage of 27 V with a tolerance of ±5%. The device operates within a power dissipation range of 225 mW and utilizes an SOT-23-3 package. Key electrical parameters include a maximum reverse leakage current of 100 nA, a Zener impedance of 60 Ω, and a test current of 5 mA. The component supports a wide operating temperature range from -65 °C to +150 °C.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation in a compact surface-mount form factor suitable for high-density PCB layouts.
• Engineered for optimal automated board assembly processes with void-free transfer-molded plastic construction.
• Offers robust electrostatic discharge protection rated at Class 3 (>16 kV) per the human body model.

Single Zener Diodes Applications

• Voltage reference circuits in cellular phones
• Voltage regulation in handheld portable devices
• Clamping and protection on high-density printed circuit boards

Single Zener Diodes Procurement Notes

Verify the specific suffix 'E' against official datasheets to confirm exact manufacturing site or lot traceability requirements. Ensure the selected variant aligns with automotive AEC-Q101 standards if applicable, as standard commercial versions may lack this qualification. Cross-reference the package outline dimensions to guarantee compatibility with existing footprint designs.

Single Zener Diodes Selection Notes

Select this component when a 27 V regulation point is required in space-constrained environments. The SOT-23-3 package offers a balance between thermal performance and minimal board area usage. Consider the 225 mW power rating relative to ambient temperature derating curves to ensure reliable operation under continuous load conditions without exceeding junction temperature limits.

Single Zener Diodes Part Context

This part belongs to the MMBZ52xxELT1G series of Zener diodes manufactured by onsemi. The series is characterized by its small physical size and suitability for automated assembly. These devices are engineered to deliver stable voltage regulation while occupying minimal real estate on modern electronic assemblies, making them ideal for consumer electronics and portable instrumentation.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same series include MMBZ5253BLT1G (24 V) and MMBZ5255BLT1G (28 V). Verify that alternative manufacturers offer equivalent SOT-23-3 footprints and matching Zener voltage tolerances to maintain circuit integrity without redesigning the PCB layout.