MAZ83000ML Equivalent & Substitute Parts

Part Overview

The MAZ83000ML is a 30 V, 150 mW Zener diode manufactured by Panasonic Electronic Components in the SMini2-F1 surface mount package. This component is classified as obsolete, which necessitates identification of functionally equivalent substitute parts for ongoing design requirements and production continuity. The 30 V nominal Zener voltage with ±7% tolerance and 150 mW maximum power dissipation define the core electrical specifications for substitution evaluation.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	30	V
Tolerance	±7%	-
Power - Max	150	mW
Impedance (Max)	160	Ohms
Current - Reverse Leakage @ Vr	50 nA @ 23 V	-
Voltage - Forward (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 MAZ83000ML is determined by matching the following critical electrical parameters: nominal Zener voltage of 30 V, surface mount configuration, and functional compatibility within power dissipation constraints. All substitute parts identified maintain the 30 V Zener voltage specification. Substitutes are grouped into two categories based on power rating capability:

Category A - Higher Power Rating Substitutes (300 mW and above): These parts exceed the original 150 mW specification and are suitable for applications where increased thermal margin or higher current handling is acceptable. This category includes BZT52H-C30,115 (375 mW), BZX585-B30,115 (300 mW), BZX585-C30,115 (300 mW), BZX84J-B30,115 (550 mW), BZX84J-C30,115 (550 mW), and MM3Z30VST1G (300 mW).

Category B - Comparable Power Rating Substitutes (200-310 mW): These parts operate within or near the original power specification and are suitable for direct replacement in space-constrained or thermally-limited applications. This category includes PZU30B,115 (310 mW), TDZTR30 (500 mW), UDZSTE-1730B (200 mW), and UDZVTE-1730B (200 mW).

All substitute parts maintain surface mount technology and 30 V nominal Zener voltage. Package variations (SOD-323F, SOD-523, TUMD2, UMD2) must be evaluated for PCB layout compatibility.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Tolerance	Power (Max)	Impedance (Max)	Reverse Leakage @ Vr	Vf (Max) @ If	Package	Product Status
MAZ83000ML	Panasonic	30 V	±7%	150 mW	160 Ω	50 nA @ 23 V	1 V @ 10 mA	SOD-323F	Obsolete
BZT52H-C30,115	NXP Semiconductors	30 V	±5%	375 mW	40 Ω	50 nA @ 21 V	900 mV @ 10 mA	SOD-123F	Active
BZX585-B30,115	Nexperia USA Inc.	30 V	±2%	300 mW	80 Ω	50 nA @ 21 V	1.1 V @ 100 mA	SOD-523	Active
BZX585-C30,115	Nexperia USA Inc.	30 V	±5%	300 mW	80 Ω	50 nA @ 21 V	1.1 V @ 100 mA	SOD-523	Active
BZX84J-B30,115	Nexperia USA Inc.	30 V	±2%	550 mW	40 Ω	50 nA @ 21 V	1.1 V @ 100 mA	SOD-323F	Active
BZX84J-C30,115	Nexperia USA Inc.	30 V	±5%	550 mW	40 Ω	50 nA @ 21 V	1.1 V @ 100 mA	SOD-323F	Active
MM3Z30VST1G	onsemi	30 V	-	300 mW	2 Ω	50 nA @ 21 V	900 mV @ 10 mA	SOD-323	Active
PZU30B,115	Nexperia USA Inc.	30 V	±5%	310 mW	40 Ω	50 nA @ 23 V	1.1 V @ 100 mA	SOD-323F	Active
TDZTR30	Rohm Semiconductor	30 V	±10%	500 mW	-	10 µA @ 21 V	-	TUMD2	Active
UDZSTE-1730B	Rohm Semiconductor	30 V	±3%	200 mW	200 Ω	100 nA @ 23 V	-	UMD2	Active
UDZVTE-1730B	Rohm Semiconductor	30 V	-	200 mW	200 Ω	100 nA @ 23 V	-	UMD2	Active

Engineering Selection Recommendations

Primary Substitutes (Recommended for Direct Replacement):

BZX84J-C30,115 and BZX84J-B30,115 are the preferred substitutes for the MAZ83000ML. Both parts maintain the SOD-323F package, ensuring PCB footprint compatibility. These Nexperia components are active products with AEC-Q101 automotive qualification, ROHS3 compliance, and significantly higher power ratings (550 mW) that provide thermal margin beyond the original 150 mW specification. The ±5% and ±2% tolerances respectively are tighter than the original ±7%, improving voltage regulation performance.

PZU30B,115 offers an alternative with the same SOD-323F package and comparable 310 mW power rating. This part carries AEC-Q100 automotive qualification and ROHS3 compliance, with ±5% tolerance matching the original specification tolerance class.

Secondary Substitutes (Package-Dependent Selection):

BZX585-B30,115 and BZX585-C30,115 provide 300 mW power ratings in the SOD-523 package. These parts are suitable when PCB layout accommodates the smaller SOD-523 footprint. Both carry AEC-Q100 automotive qualification and ROHS3 compliance.

MM3Z30VST1G (onsemi) offers 300 mW in SOD-323 package with exceptional impedance characteristics (2 Ω). This part is suitable for applications requiring low dynamic impedance performance.

Lower Power Alternatives:

UDZSTE-1730B and UDZVTE-1730B (Rohm Semiconductor) provide 200 mW ratings in UMD2 package, suitable for applications where the original 150 mW specification is marginal and modest power increase is acceptable. Both carry ROHS3 compliance.

Compliance Status:

All identified substitutes are active products with current manufacturing status. The original MAZ83000ML is RoHS non-compliant; all substitutes are ROHS3 compliant. Automotive-grade substitutes (BZX84J series, BZX585 series, PZU30B,115) carry AEC-Q100 or AEC-Q101 qualification for applications requiring automotive-level reliability.

Frequently Asked Questions (FAQ)

Q: Can BZX84J-C30,115 directly replace MAZ83000ML without circuit modification?

A: Yes. Both parts maintain 30 V nominal Zener voltage, ±5% tolerance class, and SOD-323F package. The higher 550 mW power rating of BZX84J-C30,115 provides additional thermal margin without affecting circuit function. No circuit modification is required.

Q: What is the significance of the different package types (SOD-323F, SOD-523, TUMD2, UMD2)?

A: Package type determines PCB footprint and land pattern. SOD-323F substitutes (BZX84J series, PZU30B,115) are direct footprint replacements for the original MAZ83000ML. SOD-523, TUMD2, and UMD2 packages require different PCB layouts and cannot be used as drop-in replacements without PCB redesign.

Q: Why do some substitutes have higher power ratings than the original part?

A: Higher power ratings provide thermal margin and allow operation at higher current levels without exceeding junction temperature limits. This improves reliability and design robustness. The circuit will operate identically at the original power level; the higher rating simply provides additional capability.

Q: What is the difference between ±2%, ±5%, and ±7% tolerance specifications?

A: Tolerance defines the allowable deviation from the nominal 30 V Zener voltage. ±7% (original) allows 27.9 V to 32.1 V; ±5% allows 28.5 V to 31.5 V; ±2% allows 29.4 V to 30.6 V. Tighter tolerances provide more precise voltage regulation. Substitutes with tighter tolerances improve circuit performance.

Q: Are automotive-qualified parts (AEC-Q100, AEC-Q101) necessary for non-automotive applications?

A: Automotive qualification indicates enhanced reliability testing and manufacturing controls. These certifications are not required for non-automotive applications but provide assurance of quality and consistency. Non-automotive applications may use any active substitute.

Q: What does ROHS3 compliance mean, and why is it important?

A: ROHS3 compliance indicates the part contains no restricted hazardous substances (lead, cadmium, mercury, etc.). The original MAZ83000ML is RoHS non-compliant. All identified substitutes are ROHS3 compliant, meeting current environmental and regulatory requirements for new designs.

Q: Can TDZTR30 be used as a substitute despite the ±10% tolerance?

A: TDZTR30 maintains 30 V nominal Zener voltage and 500 mW power rating. The ±10% tolerance is wider than the original ±7%, resulting in 27 V to 33 V allowable range. This part is suitable only for applications where the wider tolerance does not compromise circuit performance. The TUMD2 package also requires PCB layout changes.

Q: What is the impact of impedance differences between substitutes?

A: Impedance (Zzt) affects dynamic voltage regulation under changing load conditions. Lower impedance (40 Ω in BZX84J series) provides better voltage stability than higher impedance (160 Ω in original, 200 Ω in Rohm parts). Substitutes with lower impedance improve transient response and voltage regulation performance.

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