MAZS0910ML Zener Diode Equivalent & Substitute Parts

Part Overview

The MAZS0910ML is a 9.1 V, 150 mW surface mount zener diode manufactured by Panasonic Electronic Components in the SSMini2-F1 package. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement. Substitute parts must maintain the 9.1 V nominal zener voltage while accommodating package and performance variations within acceptable engineering tolerances.

Substiute Parts

MAZS0910ML

Panasonic Electronic ComponentsIn Stock: 1044MAZS0910ML Datasheet

Current PartRFQ

BZX585-B9V1,115

Nexperia USA Inc.In Stock: 2432BZX585-B9V1,115 Datasheet

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BZX585-B9V1,135

Nexperia USA Inc.In Stock: 807BZX585-B9V1,135 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAZS0910ML is based on the following critical parameters:

Primary Matching Criteria:

• Zener voltage: 9.1 V nominal (tolerance variation acceptable within ±2% to ±3%)
• Package compatibility: SOD-523 / SC-79 surface mount form factor
• Mounting type: Surface mount technology
• Moisture sensitivity: MSL 1 (Unlimited)

Secondary Compatibility Factors:

• Power dissipation: Substitute parts rated at 300 mW exceed the original 150 mW specification, providing enhanced thermal margin
• Impedance: Substitute parts rated at 10 Ohms (maximum) represent improved performance versus the original 20 Ohms specification
• Reverse leakage current: Substitute parts rated at 500 nA @ 6 V are acceptable within zener diode operational parameters

The identified substitute parts (BZX585-B9V1,115 and BZX585-B9V1,135) maintain identical zener voltage and package specifications while offering superior power handling and lower impedance characteristics.

Parameter Comparison

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 MAZS0910ML. The substitute parts maintain electrical equivalence at the 9.1 V zener voltage specification and are packaged identically in SOD-523 form factor.

The substitute parts offer the following advantages:

• Enhanced Power Rating: 300 mW versus 150 mW provides increased thermal margin and design flexibility
• Improved Impedance: 10 Ohms maximum versus 20 Ohms reduces voltage regulation variation
• Tighter Tolerance: ±2% versus ±3% improves voltage accuracy
• Compliance Certifications: ROHS3 compliance and AEC-Q100 automotive qualification provide regulatory alignment for automotive and industrial applications
• Operating Temperature Range: Specified -65°C to 150°C range supports extended environmental conditions

The two Nexperia variants (BZX585-B9V1,115 and BZX585-B9V1,135) are functionally identical and represent different manufacturing tape configurations. Selection between these variants depends on procurement and assembly line requirements rather than electrical performance.

Frequently Asked Questions (FAQ)

Q: Can BZX585-B9V1,115 or BZX585-B9V1,135 be used as direct replacements for MAZS0910ML?

A: Yes. Both substitute parts maintain the 9.1 V nominal zener voltage and SOD-523 package specification. The identical package footprint and lead configuration enable direct PCB substitution without layout modification.

Q: What is the difference between BZX585-B9V1,115 and BZX585-B9V1,135?

A: Both parts are electrically identical with matching electrical specifications. The designations reflect different tape reel configurations for manufacturing and assembly processes. Selection is based on procurement and production line compatibility rather than performance differences.

Q: Are the substitute parts suitable for automotive applications?

A: Yes. Both BZX585-B9V1,115 and BZX585-B9V1,135 carry AEC-Q100 automotive qualification and are classified as automotive grade components, supporting automotive design requirements.

Q: How do the power ratings affect circuit design?

A: The substitute parts are rated at 300 mW compared to the original 150 mW. This higher rating provides additional thermal margin and allows operation in circuits with higher power dissipation requirements. Circuits designed for 150 mW operation remain fully compatible with the higher-rated substitutes.

Q: What is the significance of the ±2% tolerance on substitute parts versus ±3% on the original?

A: The tighter ±2% tolerance on substitute parts improves zener voltage accuracy, resulting in more precise voltage regulation. This represents an enhancement over the original specification and is beneficial for applications requiring tighter voltage control.

Q: Are there any package or mounting differences?

A: No. All three parts use the SOD-523 surface mount package with identical footprint and lead configuration. No PCB layout or assembly process modifications are required.

Q: What is the operating temperature range for the substitute parts?

A: The substitute parts operate across -65°C to 150°C. The original MAZS0910ML operating temperature range was not specified in available documentation. The substitute parts support extended temperature operation suitable for industrial and automotive environments.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both BZX585-B9V1,115 and BZX585-B9V1,135 are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and use.