MAZ8051GML Equivalent & Substitute Parts

Part Overview

The MAZ8051GML is a Zener diode rated at 5.1 V nominal voltage with 150 mW maximum power dissipation, manufactured by Panasonic Electronic Components in the SMini2-F3 surface mount package. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives from active manufacturers. Substitute parts must maintain the 5.1 V Zener voltage specification while accommodating variations in power rating, package form factor, and electrical characteristics within acceptable engineering tolerances.

Substiute Parts

MAZ8051GML

Panasonic Electronic ComponentsIn Stock: 17112MAZ8051GML Datasheet

Current PartRFQ

BZT52H-C5V1,115

Nexperia USA Inc.In Stock: 10091BZT52H-C5V1,115 Datasheet

SimilarRFQ

BZX84J-C5V1,115

Nexperia USA Inc.In Stock: 24811BZX84J-C5V1,115 Datasheet

SimilarRFQ

MM3Z5V1T1G

onsemiIn Stock: 125425MM3Z5V1T1G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAZ8051GML is determined by the following critical parameters:

Primary Matching Criteria:

• Zener voltage: 5.1 V nominal (all substitutes maintain this specification)
• Mounting type: Surface mount (all substitutes are surface mount)
• Moisture sensitivity: MSL 1 (all substitutes meet this requirement)

Secondary Compatibility Factors:

• Power rating: Substitutes range from 150 mW to 550 mW; higher ratings provide design margin
• Package compatibility: SOD-323F and SOD-323 packages are mechanically compatible with the original SMini2-F3 footprint
• Impedance: All substitutes maintain 60 Ohms maximum impedance
• Tolerance: Substitutes offer ±5% or ±6% tolerance, both acceptable for 5.1 V regulation

All identified substitutes maintain the core 5.1 V Zener voltage specification and surface mount configuration, enabling direct functional replacement in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

BZT52H-C5V1,115 (Nexperia USA Inc.)

This substitute offers 375 mW power rating with ±5% tolerance and AEC-Q101 automotive qualification. The SOD-123F package differs from the original SMini2-F3 footprint and requires PCB layout verification. This part is suitable for applications requiring automotive-grade reliability and is actively manufactured with established supply availability.

BZX84J-C5V1,115 (Nexperia USA Inc.)

This substitute provides the highest power rating at 550 mW with ±5% tolerance and AEC-Q101 automotive qualification. The SC-90/SOD-323F package maintains mechanical compatibility with the original MAZ8051GML footprint. This part is actively manufactured and offers the greatest design margin for power dissipation. Operating temperature range extends to -65°C ~ 150°C.

MM3Z5V1T1G (onsemi)

This substitute delivers 300 mW power rating with ±6% tolerance matching the original specification. The SC-76/SOD-323 package provides mechanical compatibility with the original footprint. This part is actively manufactured with the highest inventory availability (125,400 units) and maintains the same tolerance as the original component. Operating temperature range extends to -65°C ~ 150°C.

All three substitutes maintain the 5.1 V Zener voltage, 60 Ohms impedance, and MSL 1 moisture sensitivity of the original part. Selection depends on package footprint compatibility, power dissipation requirements, and automotive qualification needs.

Frequently Asked Questions (FAQ)

Q: Can the MAZ8051GML be directly replaced with any of these substitutes?

A: All three substitutes maintain the 5.1 V Zener voltage specification and surface mount configuration. However, package footprint differences require verification. The BZX84J-C5V1,115 and MM3Z5V1T1G use SOD-323 packages compatible with the original SMini2-F3 footprint. The BZT52H-C5V1,115 uses SOD-123F, which has a different footprint and requires PCB layout modification.

Q: What is the significance of the power rating difference?

A: The original MAZ8051GML is rated at 150 mW. Substitutes with higher power ratings (375 mW, 550 mW, 300 mW) provide additional thermal margin and can dissipate more power without exceeding junction temperature limits. Higher power ratings do not negatively affect circuit performance in applications designed for 150 mW operation.

Q: How do tolerance differences affect circuit performance?

A: The original part specifies ±6% tolerance. Substitutes BZT52H-C5V1,115 and BZX84J-C5V1,115 offer ±5% tolerance, providing tighter voltage regulation. MM3Z5V1T1G maintains ±6% tolerance. For 5.1 V Zener applications, both tolerance levels are functionally equivalent in standard voltage regulation circuits.

Q: Are automotive-qualified parts necessary for non-automotive applications?

A: AEC-Q101 qualification (present in BZT52H-C5V1,115 and BZX84J-C5V1,115) indicates enhanced reliability testing and temperature cycling validation. For non-automotive applications, this qualification is not required but provides additional assurance of component reliability and consistency.

Q: What is the impact of reverse leakage current differences?

A: The original MAZ8051GML specifies 1 µA reverse leakage at 2 V. All substitutes specify 2 µA at 2 V. This difference is negligible in typical voltage regulation applications and does not affect circuit functionality.

Q: How should package selection be determined?

A: Package selection depends on existing PCB layout and footprint availability. BZX84J-C5V1,115 and MM3Z5V1T1G use SOD-323 packages mechanically compatible with the original SMini2-F3. BZT52H-C5V1,115 uses SOD-123F and requires PCB redesign. Verify footprint compatibility before component selection.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Both packaging formats contain identical components. Cut Tape (CT) and Digi-Reel® (MM3Z5V1T1G) are suitable for lower-volume applications and manual assembly. Tape & Reel (TR) formats (BZT52H-C5V1,115 and BZX84J-C5V1,115) are optimized for high-volume automated assembly. Packaging format does not affect electrical performance.