MAZS130GML Equivalent & Substitute Parts

Part Overview

The MAZS130GML is a 13 V Zener diode rated at 150 mW, manufactured by Panasonic Electronic Components in the SSMini2-F4 surface mount package. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement. Substitute parts must maintain the 13 V nominal Zener voltage while accommodating variations in power dissipation, impedance, and package form factors to ensure circuit compatibility.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	13	V
Tolerance	±3%	-
Power - Max	150	mW
Impedance (Max)	35	Ohms
Current - Reverse Leakage @ Vr	50 nA @ 10 V	-
Voltage - Forward (Vf) (Max) @ If	1 V @ 10 mA	-
Mounting Type	Surface Mount	-
Package / Case	SC-79, SOD-523	-
Moisture Sensitivity Level	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution of the MAZS130GML is determined by the following critical parameters:

Primary Matching Criteria:

Voltage - Zener (Nom): 13 V (exact match required)
Mounting Type: Surface Mount
Package / Case: SC-79 or SOD-523 compatible footprints

Secondary Compatibility Factors:

Power - Max: Substitute parts rated at 150 mW or higher are functionally compatible
Tolerance: ±3% or tighter tolerance acceptable; wider tolerance (±5%) acceptable with circuit validation
Impedance (Max): Lower impedance values (10 Ohms) provide improved performance characteristics
Current - Reverse Leakage: Substitute specifications acceptable within design margins
Voltage - Forward (Vf): Substitute specifications acceptable within design margins

All identified substitute parts maintain the 13 V Zener voltage specification and surface mount configuration, with variations in power rating, package designation, and electrical characteristics as detailed in the parameter comparison table.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power - Max	Impedance (Max)	Package / Case	Product Status
MAZS130GML	Panasonic Electronic Components	13 V	±3%	150 mW	35 Ohms	SC-79, SOD-523	Obsolete
BZT585B13T-7	Diodes Incorporated	13 V	±2%	350 mW	10 Ohms	SC-79, SOD-523	Active
BZX585-B13,115	Nexperia USA Inc.	13 V	±2%	300 mW	10 Ohms	SC-79, SOD-523	Active
BZX585-B13,135	Nexperia USA Inc.	13 V	±2%	300 mW	10 Ohms	SC-79, SOD-523	Active
BZX585-C13,115	Nexperia USA Inc.	13 V	±5%	300 mW	10 Ohms	SC-79, SOD-523	Active
BZX585-C13,135	Nexperia USA Inc.	13 V	±5%	300 mW	10 Ohms	SC-79, SOD-523	Active
BZX84J-B13,115	Nexperia USA Inc.	13 V	±2%	550 mW	10 Ohms	SC-90, SOD-323F	Active

Engineering Selection Recommendations

Direct Footprint Replacements (SOD-523 Package):

The following parts provide direct substitution with identical or compatible SOD-523 packaging:

BZT585B13T-7 (Diodes Incorporated): Active product with ±2% tolerance, 350 mW power rating, and 10 Ohms impedance. Automotive grade with AEC-Q101 qualification. ROHS3 compliant.
BZX585-B13,115 and BZX585-B13,135 (Nexperia USA Inc.): Active products with ±2% tolerance, 300 mW power rating, and 10 Ohms impedance. Automotive grade with AEC-Q101 qualification. ROHS3 compliant. Functionally equivalent with identical electrical characteristics.
BZX585-C13,115 and BZX585-C13,135 (Nexperia USA Inc.): Active products with ±5% tolerance, 300 mW power rating, and 10 Ohms impedance. Automotive grade with AEC-Q100 qualification. ROHS3 compliant. Wider tolerance specification suitable for applications with relaxed voltage tolerance requirements.

Alternative Package Option (SOD-323F Package):

BZX84J-B13,115 (Nexperia USA Inc.): Active product with ±2% tolerance, 550 mW power rating, and 10 Ohms impedance. Automotive grade with AEC-Q101 qualification. ROHS3 compliant. Requires PCB layout modification due to SOD-323F package form factor. Higher power rating provides thermal margin.

All substitute parts are active products with current manufacturing status, ensuring long-term availability and supply chain stability compared to the obsolete MAZS130GML.

Frequently Asked Questions (FAQ)

Q: Can BZT585B13T-7 directly replace MAZS130GML without circuit modification?

A: Yes. Both parts share identical 13 V Zener voltage, surface mount configuration, and SOD-523 package designation. The BZT585B13T-7 provides higher power rating (350 mW vs. 150 mW) and lower impedance (10 Ohms vs. 35 Ohms), resulting in improved performance characteristics. No circuit modification is required.

Q: What is the difference between BZX585-B13 and BZX585-C13 series?

A: The primary difference is tolerance specification. BZX585-B13 parts maintain ±2% tolerance with AEC-Q101 qualification. BZX585-C13 parts maintain ±5% tolerance with AEC-Q100 qualification. Both series share identical 13 V Zener voltage, 300 mW power rating, and 10 Ohms impedance. Selection depends on circuit voltage tolerance requirements.

Q: Why does BZX84J-B13,115 use a different package (SOD-323F)?

A: BZX84J-B13,115 is manufactured in SOD-323F package, which differs physically from the SOD-523 package used in MAZS130GML and other substitute options. This part requires PCB layout modification and cannot be used as a direct footprint replacement. Selection of this part is appropriate only when PCB redesign is feasible and higher power dissipation (550 mW) is beneficial.

Q: Are all substitute parts automotive qualified?

A: Yes. All identified substitute parts carry automotive grade designation with either AEC-Q101 (BZT585B13T-7, BZX585-B13 series, BZX84J-B13,115) or AEC-Q100 (BZX585-C13 series) qualification. All parts are ROHS3 compliant and REACH unaffected.

Q: What is the significance of lower impedance in substitute parts?

A: Impedance (Zzt) characterizes the dynamic resistance of the Zener diode. Lower impedance values (10 Ohms in substitute parts vs. 35 Ohms in MAZS130GML) result in improved voltage regulation and reduced voltage variation across the operating current range. This represents an enhancement over the original part specification.

Q: Can BZX585-C13,115 be used in applications requiring ±3% tolerance?

A: No. BZX585-C13,115 specifies ±5% tolerance, which exceeds the ±3% tolerance of MAZS130GML. This part is suitable only for applications with ±5% or wider tolerance requirements. For ±3% tolerance applications, use BZT585B13T-7 or BZX585-B13 series parts.

Q: What inventory status should influence part selection?

A: All substitute parts are active products with current manufacturing status. Inventory levels vary: BZT585B13T-7 (208,943 pcs), BZX585-B13,115 (8,165 pcs), BZX585-B13,135 (10,970 pcs), BZX585-C13,115 (4,929 pcs), BZX585-C13,135 (10,723 pcs), and BZX84J-B13,115 (3,895 pcs). Selection should prioritize parts with adequate inventory for production volume requirements.

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