MMBZ5242ELT1G

Single Zener Diodes Overview

The MMBZ5242ELT1G is a single Zener diode from the MMBZ52xxELT1G series, manufactured by onsemi. It provides voltage regulation with a nominal Zener voltage of 12 V and a tolerance range of 11.40 V to 12.60 V at a test current of 20 mA. The device features a maximum Zener impedance of 30 Ohms and a reverse leakage current of 1 uA at 9.1 V. It operates within a junction temperature range of -65°C to +150°C and dissipates up to 225 mW on an FR-5 board. Packaged in a surface-mount SOT-23 (CASE 318) housing, it is available in lead-free tape and reel formats.

Single Zener Diodes Feature Summary

• Designed for voltage regulation applications requiring minimal space utilization.
• Optimized package geometry facilitates automated board assembly processes.
• Capable of withstanding high-energy transient pulses via peak power dissipation rating.

Single Zener Diodes Applications

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

Single Zener Diodes Procurement Notes

Verify that the ordering suffix ELT1G corresponds to the specific 3000-unit tape and reel packaging configuration. Confirm compliance requirements such as RoHS status and AEC-Q101 qualification if automotive usage is intended. Ensure the SZ prefix variant is selected only when unique site control changes are required. Cross-reference the electrical characteristics table for the exact marking code BG5 to validate component authenticity upon receipt.

Single Zener Diodes Selection Notes

Select this component when a 12 V reference or clamp is needed in compact designs. The SOT-23 form factor suits space-constrained layouts compared to through-hole alternatives. Consider the thermal derating curves for ambient temperatures exceeding 25°C. Evaluate the ESD protection capabilities relative to system sensitivity requirements. Verify that the forward voltage drop meets circuit constraints during non-regulation states.

Single Zener Diodes Part Context

This part belongs to the MMBZ52xxELT1G series of Zener Voltage Regulators. The series covers a wide breakdown voltage range from 2.4 V to 91 V. All variants share the same SOT-23 mechanical outline and general thermal characteristics. The 'EL' designation typically indicates standard tolerance specifications within the product family line.

Single Zener Diodes Replacement Considerations

MMBZ5242BLT1G

Single Zener Diodes FAQ

What is the pinout configuration for the MMBZ5242ELT1G?

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

How is the cathode identified on the physical component?

The cathode is indicated by a polarity band on the device body.

What is the maximum case temperature for soldering purposes?

The maximum case temperature for soldering is 260°C for 10 seconds.