MAZS0270LL Equivalent & Substitute Parts

Part Overview

The MAZS0270LL is a Zener diode manufactured by Panasonic Electronic Components, rated at 2.6 V nominal with 150 mW maximum power dissipation in a surface mount SSMini2-F1 package. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives from active manufacturers. Substitute parts must maintain compatibility with the original electrical specifications and surface mount packaging requirements while meeting current industry standards and compliance certifications.

Substiute Parts

MAZS0270LL

Panasonic Electronic ComponentsIn Stock: 1137MAZS0270LL Datasheet

Current PartRFQ

BZX585-B2V7,115

Nexperia USA Inc.In Stock: 5788BZX585-B2V7,115 Datasheet

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BZX585-B2V7,135

Nexperia USA Inc.In Stock: 10971BZX585-B2V7,135 Datasheet

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MM5Z2V4ST1G

onsemiIn Stock: 32181MM5Z2V4ST1G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAZS0270LL is determined by the following critical parameters: nominal Zener voltage within acceptable tolerance range, maximum power dissipation capability, surface mount package compatibility (SOD-523), and impedance characteristics. The substitute parts listed maintain the SC-79 and SOD-523 package specifications, ensuring mechanical and electrical compatibility with existing PCB layouts and assembly processes.

The BZX585-B2V7,115 and BZX585-B2V7,135 variants from Nexperia USA Inc. are functionally equivalent alternatives with a nominal Zener voltage of 2.7 V, which falls within the acceptable operating range for applications designed around the 2.6 V specification. Both variants feature improved power handling (300 mW versus 150 mW) and tighter tolerance (±2% versus ±5%), with active product status and automotive-grade qualification.

The MM5Z2V4ST1G from onsemi provides a 2.53 V nominal Zener voltage with enhanced power dissipation capability (500 mW) and maintains SOD-523 package compatibility. This part offers the highest power rating among the substitutes and is actively manufactured.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are actively manufactured and available in production quantities, addressing the obsolescence status of the MAZS0270LL. The BZX585-B2V7,115 and BZX585-B2V7,135 variants from Nexperia are qualified to AEC-Q100 automotive standards and carry ROHS3 compliance certification. The MM5Z2V4ST1G from onsemi provides the highest power dissipation capability (500 mW) and maintains ROHS3 compliance with REACH unaffected status.

Selection between the Nexperia and onsemi alternatives depends on application power requirements and thermal management constraints. The Nexperia parts offer tighter voltage tolerance (±2%) and lower reverse leakage current (20 µA), while the onsemi part provides superior power handling and lower forward voltage characteristics at the specified test current.

Frequently Asked Questions (FAQ)

Q: Can the BZX585-B2V7 series directly replace the MAZS0270LL without circuit modification?

A: The BZX585-B2V7 series maintains SOD-523 package compatibility and operates within acceptable voltage tolerance for applications designed around 2.6 V nominal specification. The 2.7 V nominal rating represents a 3.8% increase, which falls within typical circuit design margins for Zener diode applications. No circuit modification is required for package or pinout compatibility.

Q: What is the significance of the voltage tolerance difference between the MAZS0270LL (±5%) and substitute parts?

A: The MAZS0270LL specifies ±5% tolerance, resulting in an operating range of 2.47 V to 2.73 V. The BZX585-B2V7 series with ±2% tolerance (2.65 V to 2.75 V) provides tighter voltage regulation. The MM5Z2V4ST1G with ±4% tolerance (2.43 V to 2.63 V) maintains comparable range characteristics. Tighter tolerance in substitute parts improves circuit performance and reduces voltage regulation variation.

Q: How do the power dissipation ratings affect substitution suitability?

A: The MAZS0270LL is rated at 150 mW maximum power dissipation. The BZX585-B2V7 series provides 300 mW capability, and the MM5Z2V4ST1G provides 500 mW capability. Higher power ratings in substitute parts ensure adequate thermal margin and extended component life in applications operating at or near the original 150 mW specification. Substitution with higher-rated parts does not degrade circuit performance.

Q: Are there packaging considerations when substituting these parts?

A: All substitute parts maintain the SC-79 and SOD-523 package specifications, ensuring direct mechanical compatibility with existing PCB layouts. No footprint modification or assembly process changes are required. The SSMini2-F1 supplier designation for the original part corresponds to the SOD-523 industry standard package used by all substitute manufacturers.

Q: What compliance advantages do the substitute parts offer?

A: The BZX585-B2V7 series carries AEC-Q100 automotive qualification and ROHS3 compliance. The MM5Z2V4ST1G carries ROHS3 compliance with REACH unaffected status. All substitute parts have unlimited moisture sensitivity level (MSL 1), matching the original part specification. These certifications ensure compliance with current regulatory requirements and supply chain standards.

Q: How do reverse leakage current specifications compare?

A: The MAZS0270LL and MM5Z2V4ST1G both specify 120 µA reverse leakage at 1 V. The BZX585-B2V7 series specifies 20 µA at 1 V, representing significantly lower leakage. Lower reverse leakage improves circuit efficiency and reduces standby current consumption in applications where this parameter is critical.