MMBZ5270BLT1

Single Zener Diodes Overview

The onsemi MMBZ5270BLT1G is a single Zener voltage regulator diode housed in an SOT-23 surface-mount package. It provides a nominal Zener voltage of 91 V with a tolerance of ±5%. The device operates within a junction temperature range of -65°C to +150°C and features a total power dissipation rating of 225 mW on FR-4 or FR-5 boards at 25°C ambient temperature. Electrical characteristics include a maximum Zener impedance of 400 Ω at the test current of 1.4 mA, a reverse leakage current of 0.1 µA at 69 V, and a forward voltage of 0.95 V maximum at 10 mA.

Single Zener Diodes Feature Summary

• Designed for voltage regulation in applications requiring minimal space utilization.
• Optimized for automated board assembly processes.
• Capable of withstanding electrostatic discharge events exceeding 16 kV per the human body model.

Single Zener Diodes Applications

• Cellular phones
• Handheld portable devices
• High density PC boards

Single Zener Diodes Procurement Notes

Verify that the ordering suffix matches the required packaging configuration, as the BLT1G designation corresponds to specific tape and reel quantities. Confirm RoHS compliance status and ensure the component meets the environmental requirements for the intended deployment environment before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a precise 91 V reference is needed in a compact form factor. Ensure the circuit design accommodates the 225 mW thermal dissipation limit on standard PCB substrates. Verify that the operating current remains within the specified test conditions to maintain accuracy within the stated voltage tolerance limits.

Single Zener Diodes Part Context

This part belongs to the MMBZ52xxBLT1G series of Zener voltage regulators manufactured by onsemi. The series utilizes a void-free, transfer-molded thermosetting plastic case with a corrosion-resistant finish. The SOT-23 package (Case 318) allows for efficient use of board real estate while maintaining reliable solderability for surface mount technology assembly lines.

Single Zener Diodes Replacement Considerations

Cross-reference with other MMBZ5270 variants from different manufacturers ensuring identical 91 V nominal voltage, SOT-23 footprint, and 225 mW power rating. Verify pinout compatibility (Anode, NC, Cathode) and thermal resistance characteristics to ensure seamless integration without circuit redesign.

Single Zener Diodes FAQ

What is the pin configuration for the MMBZ5270BLT1G?

Pin 1 is the Anode, Pin 2 is No Connection, and Pin 3 is the Cathode.

Does the device have automotive qualification?

Standard MMBZ52xxBLT1G parts are not AEC-Q101 qualified; the SZ prefix indicates automotive qualification and PPAP capability.