MAZ8150GML Equivalent & Substitute Parts

Part Overview

The MAZ8150GML is a Zener diode manufactured by Panasonic Electronic Components, rated at 15 V nominal voltage with 150 mW maximum power dissipation in a surface mount SMini2-F3 package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part operates with ±6% voltage tolerance and is suitable for voltage regulation and protection applications in surface mount assemblies.

Key Parameters

Parameter	Value
Voltage - Zener (Nom)	15 V
Tolerance	±6%
Power - Max	150 mW
Impedance (Max)	40 Ohms
Current - Reverse Leakage @ Vr	50 nA @ 11 V
Voltage - Forward (Vf) (Max) @ If	1 V @ 10 mA
Mounting Type	Surface Mount
Package / Case	SC-90, SOD-323F
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the MAZ8150GML is determined by the following critical parameters:

Primary Matching Criteria:

Zener voltage: 15 V nominal
Mounting type: Surface mount
Reverse leakage current: 50 nA @ specified voltage
Package compatibility: SC-90, SOD-323F or equivalent footprint

Substitution Logic:

Substitute parts are grouped into two categories based on power rating and package type:

Category 1: Higher Power Rating (300 mW) with SOD-523 Package Parts BZX585-B15,115, BZX585-B15,135, BZX585-C15,115, and BZX585-C15,135 from Nexperia USA Inc. provide 300 mW power dissipation in SOD-523 packages. These parts exceed the original 150 mW specification and feature improved impedance characteristics (15 Ohms maximum versus 40 Ohms). These substitutes are active products with automotive qualification (AEC-Q100) and ROHS3 compliance.

Category 2: Same Package Type (SOD-323F) with Higher Power Rating (550 mW) Part BZX84J-B15,115 from Nexperia USA Inc. maintains the SOD-323F package footprint while providing 550 mW power dissipation. This part offers direct mechanical compatibility with the original MAZ8150GML and includes automotive qualification (AEC-Q101).

Category 3: Alternative Package (SOD-323) with 300 mW Rating Part MM3Z15VT1G from onsemi provides 300 mW in a SOD-323 package, offering a middle-ground solution between power rating and package size.

All substitute parts maintain the 15 V nominal zener voltage and 50 nA reverse leakage specification, ensuring functional equivalence in voltage regulation applications.

Parameter Comparison

Parameter	MAZ8150GML	BZX585-B15,115	BZX585-B15,135	BZX585-C15,115	BZX585-C15,135	BZX84J-B15,115	MM3Z15VT1G
Manufacturer	Panasonic	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.	onsemi
Voltage - Zener (Nom)	15 V	15 V	15 V	15 V	15 V	15 V	15 V
Tolerance	±6%	±2%	±2%	±5%	±5%	±2%	±5%
Power - Max	150 mW	300 mW	300 mW	300 mW	300 mW	550 mW	300 mW
Impedance (Max)	40 Ohms	15 Ohms	15 Ohms	15 Ohms	15 Ohms	15 Ohms	30 Ohms
Current - Reverse Leakage @ Vr	50 nA @ 11 V	50 nA @ 10.5 V	50 nA @ 10.5 V	50 nA @ 10.5 V	50 nA @ 10.5 V	50 nA @ 10.5 V	50 nA @ 10.5 V
Voltage - Forward (Vf) (Max) @ If	1 V @ 10 mA	1.1 V @ 100 mA	1.1 V @ 100 mA	1.1 V @ 100 mA	1.1 V @ 100 mA	1.1 V @ 100 mA	900 mV @ 10 mA
Operating Temperature	Not specified	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C
Package / Case	SC-90, SOD-323F	SC-79, SOD-523	SC-79, SOD-523	SC-79, SOD-523	SC-79, SOD-523	SC-90, SOD-323F	SC-76, SOD-323
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
Automotive Grade	Not specified	Yes (AEC-Q100)	Yes (AEC-Q100)	Yes (AEC-Q100)	Yes (AEC-Q100)	Yes (AEC-Q101)	Not specified
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Package Compatibility (SOD-323F):

BZX84J-B15,115 is the recommended substitute when PCB layout and mechanical constraints require the original SOD-323F package footprint. This part maintains identical package dimensions while providing 550 mW power dissipation, exceeding the original 150 mW specification. The part carries active product status, AEC-Q101 automotive qualification, and ROHS3 compliance, making it suitable for production environments requiring automotive-grade components.

For Improved Performance with Package Change (SOD-523):

BZX585-C15,135 or BZX585-C15,115 are suitable when PCB redesign is acceptable. These parts provide 300 mW power dissipation with ±5% tolerance matching the original specification tolerance range. Both parts carry AEC-Q100 automotive qualification and ROHS3 compliance. BZX585-C15,135 offers higher inventory availability (20,756 pcs) compared to BZX585-C15,115 (15,300 pcs).

BZX585-B15,115 and BZX585-B15,135 provide tighter ±2% tolerance specifications for applications requiring improved voltage accuracy, with AEC-Q100 qualification and ROHS3 compliance.

For Alternative Package Option (SOD-323):

MM3Z15VT1G from onsemi provides 300 mW in a SOD-323 package with ±5% tolerance. This part offers the highest inventory availability (161,300 pcs) and ROHS3 compliance. The SOD-323 package represents a compromise between the original SOD-323F and the larger SOD-523 options.

All substitute parts maintain the critical 15 V nominal zener voltage and 50 nA reverse leakage current specifications, ensuring functional equivalence in voltage regulation and protection circuits.

Frequently Asked Questions (FAQ)

Q: Can BZX585 series parts (SOD-523 package) be used as direct replacements for MAZ8150GML (SOD-323F package)?

A: BZX585 series parts require PCB layout modification due to different package footprints. SOD-523 packages are larger than SOD-323F packages. If the original PCB layout cannot accommodate the larger package, BZX84J-B15,115 maintains the SOD-323F footprint. If PCB redesign is feasible, BZX585 series parts offer improved electrical characteristics including lower impedance (15 Ohms versus 40 Ohms) and higher power ratings (300 mW versus 150 mW).

Q: What is the difference between BZX585-B15 and BZX585-C15 variants?

A: The primary difference is voltage tolerance. BZX585-B15 series parts specify ±2% tolerance, while BZX585-C15 series parts specify ±5% tolerance. Both series maintain identical 15 V nominal voltage, 300 mW power rating, and 15 Ohms maximum impedance. Selection depends on application voltage accuracy requirements.

Q: Are all substitute parts automotive qualified?

A: BZX585-B15,115, BZX585-B15,135, BZX585-C15,115, BZX585-C15,135, and BZX84J-B15,115 carry automotive qualifications (AEC-Q100 or AEC-Q101). MM3Z15VT1G does not specify automotive qualification. For automotive applications, select from the Nexperia USA Inc. parts.

Q: What is the impedance difference between the original part and substitutes?

A: The MAZ8150GML specifies 40 Ohms maximum impedance. All Nexperia substitute parts (BZX585 and BZX84J series) specify 15 Ohms maximum impedance, representing a 62.5% reduction. MM3Z15VT1G specifies 30 Ohms maximum impedance, representing a 25% reduction. Lower impedance improves voltage regulation performance and reduces output impedance in voltage reference applications.

Q: Can I use a higher power-rated part in place of the 150 mW original?

A: Yes. All substitute parts provide equal or higher power ratings (300 mW or 550 mW). Higher power ratings do not negatively affect circuit operation; they provide additional thermal margin and allow the component to dissipate more power without exceeding maximum junction temperature. Circuit design remains unchanged.

Q: What is the difference between SOD-323, SOD-323F, and SOD-523 packages?

A: SOD-323F and SOD-323 are similar small outline diode packages with different lead configurations. SOD-323F features flat leads suitable for automated assembly. SOD-523 is a larger package providing higher power dissipation capability. Package selection depends on PCB layout constraints and thermal requirements. Footprint compatibility must be verified before substitution.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed specify ROHS3 compliance. The original MAZ8150GML does not specify RoHS status. For applications requiring RoHS compliance, all listed substitutes are suitable.

Q: What inventory levels are available for each substitute?

A: MM3Z15VT1G offers the highest availability (161,300 pcs). BZX585-C15,135 provides 20,756 pcs, BZX585-B15,115 provides 23,775 pcs, BZX585-C15,115 provides 15,300 pcs, BZX585-B15,135 provides 995 pcs, and BZX84J-B15,115 provides 99,170 pcs. Inventory levels should be verified for current availability.

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