MAZS2000ML Equivalent & Substitute Parts

Part Overview

The MAZS2000ML is a 20 V Zener diode rated at 150 mW with ±3% tolerance, manufactured by Panasonic Electronic Components in the SSMini2-F1 surface mount package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The diode is designed for voltage regulation and protection applications in surface mount configurations.

Key Parameters

Parameter	Value
Voltage - Zener (Nom)	20 V
Power - Max	150 mW
Tolerance	±3%
Impedance (Max)	80 Ohms
Current - Reverse Leakage @ Vr	50 nA @ 15 V
Voltage - Forward (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 MAZS2000ML is determined by the following critical parameters: nominal Zener voltage of 20 V, surface mount technology, and functional compatibility within the specified electrical characteristics. All substitute parts maintain the 20 V Zener voltage specification as the primary selection criterion.

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

Category 1: Direct Package Compatibility (SOD-523 / SC-79) Parts that utilize the same or compatible package footprint as the original MAZS2000ML, enabling direct board-level substitution without layout modifications.

Category 2: Higher Power Rating Alternatives (SOD-323F / SOD-123F) Parts that exceed the 150 mW power rating, providing enhanced thermal performance and design margin while maintaining the 20 V Zener specification. These require package footprint verification before implementation.

All substitute parts are active products with current manufacturing status and established supply chains, ensuring long-term availability.

Parameter Comparison

Parameter	MAZS2000ML	BZX585-B20,115	EDZVFHT2R20B	BZX84J-B20,115	BZX84J-C20,115	BZT52H-C20,115
Manufacturer	Panasonic	Nexperia USA Inc.	Rohm Semiconductor	NXP Semiconductors	Nexperia USA Inc.	Nexperia USA Inc.
Voltage - Zener (Nom)	20 V	20 V	20 V	20 V	20 V	20 V
Power - Max	150 mW	300 mW	150 mW	550 mW	550 mW	375 mW
Tolerance	±3%	±2%	±2.18%	±2%	±5%	±5%
Impedance (Max)	80 Ohms	55 Ohms	85 Ohms	20 Ohms	20 Ohms	20 Ohms
Current - Reverse Leakage @ Vr	50 nA @ 15 V	50 nA @ 700 mV	100 nA @ 15 V	50 nA @ 14 V	50 nA @ 14 V	50 nA @ 14 V
Voltage - Forward (Max) @ If	1 V @ 10 mA	1.1 V @ 100 mA	Not specified	1.1 V @ 100 mA	1.1 V @ 100 mA	900 mV @ 10 mA
Operating Temperature	Not specified	-65°C ~ 150°C	150°C (TJ)	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C (TA)
Package / Case	SC-79, SOD-523	SC-79, SOD-523	SC-79, SOD-523	SC-90, SOD-323F	SC-90, SOD-323F	SOD-123F
Product Status	Obsolete	Active	Active	Active	Active	Active
Grade	Not specified	Automotive	Automotive	Automotive	Automotive	Automotive
Qualification	Not specified	AEC-Q100	AEC-Q101	AEC-Q101	AEC-Q101	AEC-Q101
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	Not specified	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

BZX585-B20,115 (Nexperia USA Inc.) This part provides direct package compatibility with the MAZS2000ML in the SOD-523 / SC-79 footprint. The BZX585-B20,115 doubles the power rating to 300 mW while maintaining the same package envelope, offering improved thermal performance. It carries AEC-Q100 automotive qualification and ROHS3 compliance. The ±2% tolerance provides tighter voltage regulation than the original ±3% specification. This is the preferred direct replacement for applications requiring identical board-level compatibility.

EDZVFHT2R20B (Rohm Semiconductor) This part matches the MAZS2000ML in both power rating (150 mW) and package footprint (SOD-523 / SC-79), providing a true functional equivalent. The EDZVFHT2R20B carries AEC-Q101 automotive qualification and ROHS3 compliance. The ±2.18% tolerance is superior to the original ±3%. This part is suitable for applications where power rating equivalence is required without design margin enhancement.

BZX84J-B20,115 (NXP Semiconductors) This part offers significantly higher power dissipation at 550 mW in the SOD-323F package. The BZX84J-B20,115 carries AEC-Q101 automotive qualification and provides ±2% tolerance. This part requires PCB layout modification due to the different package footprint (SOD-323F vs. SOD-523). Selection is appropriate for designs requiring enhanced thermal performance and where package redesign is feasible.

BZX84J-C20,115 (Nexperia USA Inc.) This part provides 550 mW power rating in the SOD-323F package with AEC-Q101 automotive qualification and ROHS3 compliance. The ±5% tolerance is wider than the original specification. Like the BZX84J-B20,115, this requires PCB layout modification. Selection is appropriate where higher power dissipation is required and package redesign is acceptable.

BZT52H-C20,115 (Nexperia USA Inc.) This part offers 375 mW power rating in the SOD-123F package with AEC-Q101 automotive qualification and ROHS3 compliance. The ±5% tolerance is wider than the original. This package differs from the MAZS2000ML and requires PCB layout modification. Selection is appropriate for applications requiring intermediate power rating enhancement with a different package footprint.

Frequently Asked Questions (FAQ)

Q: Can the BZX585-B20,115 be used as a direct replacement for the MAZS2000ML without PCB modifications?

A: Yes. The BZX585-B20,115 utilizes the same SOD-523 / SC-79 package footprint as the MAZS2000ML, enabling direct board-level substitution without layout changes. The increased power rating (300 mW vs. 150 mW) provides additional thermal margin while maintaining electrical compatibility.

Q: What is the primary difference between the BZX84J-B20,115 and BZX84J-C20,115?

A: Both parts share identical electrical specifications (20 V, 550 mW, SOD-323F package) and automotive qualifications. The primary difference is tolerance: BZX84J-B20,115 specifies ±2% while BZX84J-C20,115 specifies ±5%. Selection depends on voltage regulation precision requirements.

Q: Does the EDZVFHT2R20B provide the same power rating as the MAZS2000ML?

A: Yes. The EDZVFHT2R20B is rated at 150 mW, matching the MAZS2000ML power specification. Both parts also share the same SOD-523 / SC-79 package footprint, making this a true functional equivalent suitable for direct substitution.

Q: Which substitute part requires the least PCB redesign effort?

A: The BZX585-B20,115 and EDZVFHT2R20B both maintain the SOD-523 / SC-79 package footprint of the MAZS2000ML, requiring no PCB layout modifications. The BZX84J series (SOD-323F) and BZT52H-C20,115 (SOD-123F) require package footprint verification and potential layout changes.

Q: Are all substitute parts automotive-qualified?

A: Yes. All substitute parts carry automotive-grade designations with AEC-Q100 or AEC-Q101 qualifications, meeting automotive industry standards for reliability and performance.

Q: What tolerance specification should be selected if voltage regulation precision is critical?

A: The BZX585-B20,115 and BZX84J-B20,115 both specify ±2% tolerance, providing tighter voltage regulation than the original MAZS2000ML (±3%). The EDZVFHT2R20B offers ±2.18% tolerance. Parts with ±5% tolerance (BZX84J-C20,115 and BZT52H-C20,115) are suitable for applications with relaxed voltage regulation requirements.

Q: Is the MAZS2000ML still available for procurement?

A: The MAZS2000ML is classified as obsolete. However, 767 pieces are currently in stock as new original inventory. For long-term design continuity, selection of an active substitute part is recommended to ensure future availability and supply chain stability.

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