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MAZ8091GML Equivalent & Substitute Parts
Part Overview
The MAZ8091GML is a Zener diode manufactured by Panasonic Electronic Components, rated at 9.1 V nominal with 150 mW maximum power dissipation. This component is packaged in the SMini2-F3 surface mount configuration and features ±6% voltage tolerance. The product status is obsolete, making identification of equivalent and substitute parts necessary for ongoing design support, maintenance, and production continuity. Substitute parts must maintain the 9.1 V Zener voltage specification while accommodating differences in power rating, package type, and electrical characteristics.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Zener (Nom) | 9.1 | V |
| Tolerance | ±6% | — |
| Power - Max | 150 | mW |
| Impedance (Max) | 20 | Ohms |
| Current - Reverse Leakage @ Vr | 100 | nA @ 6 V |
| Voltage - Forward (Vf) (Max) @ If | 1 | V @ 10 mA |
| Mounting Type | Surface Mount | — |
| Package / Case | SC-90, SOD-323F | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the MAZ8091GML is based on the following critical electrical parameters:
Primary Matching Criteria:
- Zener voltage: 9.1 V nominal (core functional requirement)
- Mounting type: Surface mount (design integration requirement)
- Moisture sensitivity: MSL 1 or equivalent (handling and storage compatibility)
Secondary Compatibility Factors:
- Power rating: Substitute parts rated at 300 mW exceed the original 150 mW specification, providing enhanced thermal margin
- Voltage tolerance: Substitute parts feature ±2% tolerance, which is tighter than the original ±6%, ensuring improved voltage regulation accuracy
- Impedance: Substitute parts rated at 10 Ohms maximum impedance are superior to the original 20 Ohms specification
- Reverse leakage current: Substitute parts rated at 500 nA @ 6 V are higher than the original 100 nA specification but remain within acceptable operational limits for Zener diode applications
Package Consideration: The substitute parts utilize SOD-523 packaging, which differs from the original SMini2-F3 package. Both are surface mount configurations suitable for automated assembly, though PCB layout modifications may be required to accommodate the different footprint geometry.
Parameter Comparison
| Parameter | MAZ8091GML | BZX585-B9V1,115 | BZX585-B9V1,135 |
|---|---|---|---|
| Manufacturer | Panasonic Electronic Components | Nexperia USA Inc. | Nexperia USA Inc. |
| Voltage - Zener (Nom) | 9.1 V | 9.1 V | 9.1 V |
| Tolerance | ±6% | ±2% | ±2% |
| Power - Max | 150 mW | 300 mW | 300 mW |
| Impedance (Max) | 20 Ohms | 10 Ohms | 10 Ohms |
| Current - Reverse Leakage @ Vr | 100 nA @ 6 V | 500 nA @ 6 V | 500 nA @ 6 V |
| Voltage - Forward (Vf) (Max) @ If | 1 V @ 10 mA | 1.1 V @ 100 mA | 1.1 V @ 100 mA |
| Operating Temperature | Not specified | -65°C ~ 150°C | -65°C ~ 150°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | SC-90, SOD-323F | SC-79, SOD-523 | SC-79, SOD-523 |
| Product Status | Obsolete | Active | Active |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
BZX585-B9V1,115 and BZX585-B9V1,135 Suitability:
Both Nexperia substitute parts are classified as active products with full production support, addressing the obsolescence status of the MAZ8091GML. The BZX585-B9V1 series maintains the critical 9.1 V Zener voltage specification required for circuit functionality.
Compliance and Qualification:
The substitute parts carry AEC-Q100 automotive qualification and ROHS3 compliance certification. These qualifications indicate rigorous testing and reliability standards suitable for demanding applications. The REACH unaffected status confirms regulatory compliance for European markets.
Electrical Performance Enhancement:
The substitute parts provide improved electrical characteristics: tighter voltage tolerance (±2% versus ±6%), higher power rating (300 mW versus 150 mW), and lower impedance (10 Ohms versus 20 Ohms). These enhancements result in superior voltage regulation and thermal performance.
Packaging Transition:
The transition from SMini2-F3 to SOD-523 packaging requires PCB layout modification. Both packages are surface mount configurations with MSL 1 moisture sensitivity, ensuring compatibility with standard assembly processes and storage conditions.
Inventory Availability:
BZX585-B9V1,115 is available with 2373 pieces in stock, and BZX585-B9V1,135 is available with 742 pieces in stock, providing immediate procurement options for production requirements.
Frequently Asked Questions (FAQ)
Q: Can BZX585-B9V1,115 and BZX585-B9V1,135 be used interchangeably with MAZ8091GML?
A: Both substitute parts maintain the 9.1 V Zener voltage specification and surface mount configuration required for functional equivalence. However, the package change from SMini2-F3 to SOD-523 necessitates PCB layout modification. The electrical performance of the substitutes exceeds the original specification in power rating, voltage tolerance, and impedance.
Q: What is the impact of the package change from SMini2-F3 to SOD-523?
A: The package change requires modification of the PCB footprint and component placement. Both packages are surface mount configurations suitable for automated assembly. The SOD-523 package dimensions differ from SMini2-F3, requiring updated design files and assembly tooling. Electrical functionality remains equivalent.
Q: How do the electrical parameter differences affect circuit performance?
A: The substitute parts feature ±2% voltage tolerance compared to the original ±6%, resulting in tighter voltage regulation. The 300 mW power rating provides greater thermal margin than the original 150 mW specification. The 10 Ohms impedance is superior to the original 20 Ohms, improving dynamic response characteristics. These enhancements are compatible with circuits designed for the MAZ8091GML.
Q: Are the substitute parts suitable for automotive applications?
A: Yes. Both BZX585-B9V1,115 and BZX585-B9V1,135 carry AEC-Q100 automotive qualification, indicating compliance with automotive reliability and testing standards. These parts are suitable for automotive and industrial applications requiring qualified components.
Q: What is the significance of the MSL 1 moisture sensitivity rating?
A: MSL 1 indicates unlimited shelf life without moisture bake requirements. Both the original part and substitute parts share this rating, ensuring compatibility with standard storage and handling procedures. No special moisture control measures are required during component storage or assembly.
Q: Are there differences in reverse leakage current between the original and substitute parts?
A: The substitute parts specify 500 nA @ 6 V reverse leakage current compared to the original 100 nA @ 6 V. This difference is within acceptable operational limits for Zener diode applications and does not compromise circuit functionality. The higher leakage current remains negligible for typical circuit designs.
Q: What certifications and compliance standards apply to the substitute parts?
A: The substitute parts are ROHS3 compliant and REACH unaffected. They carry AEC-Q100 automotive qualification. These certifications confirm compliance with environmental regulations and automotive industry reliability standards.
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