MAZS0470ML Equivalent & Substitute Parts

Part Overview

The MAZS0470ML is a Zener diode manufactured by Panasonic Electronic Components with a nominal Zener voltage of 4.7 V and maximum power dissipation of 150 mW. This component is packaged in the SC-79/SOD-523 surface mount format with ±3% voltage tolerance. The product status is obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Zener (Nom)	4.7 V
Tolerance	±3%
Power - Max	150 mW
Impedance (Max)	80 Ohms
Current - Reverse Leakage @ Vr	2 µA @ 1 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 MAZS0470ML is determined by the following critical parameters:

Primary Matching Criteria:

Zener voltage nominal value of 4.7 V (±tolerance range acceptable)
Surface mount packaging technology
Maximum power dissipation capability equal to or greater than 150 mW
Impedance characteristics within acceptable range (80 Ohms reference)
Reverse leakage current specifications compatible with circuit requirements

Substitute Categories:

Category 1: Direct Package Compatibility (SOD-523) Parts BZX585-B4V7,115 and BZX585-B4V7,135 maintain the same SOD-523 package footprint as the original MAZS0470ML, enabling direct board-level substitution without layout modifications.

Category 2: Enhanced Power Rating (Higher mW) Parts BZT52H-C4V7,115 (375 mW) and BZX84J-C4V7,115 (550 mW) provide increased power dissipation capability while maintaining the 4.7 V Zener voltage specification. These are suitable for applications requiring higher thermal headroom.

Category 3: Matched Power Rating with Voltage Tolerance Part EDZVFHT2R4.7B provides 150 mW power rating matching the original specification with a nominal Zener voltage of 4.65 V (within ±3% tolerance band) and maintains the same package footprint.

All substitute parts are surface mount devices with MSL rating of 1 (Unlimited) and maintain compatibility with the electrical circuit requirements of the original MAZS0470ML.

Parameter Comparison

Parameter	MAZS0470ML	BZT52H-C4V7,115	BZX585-B4V7,115	BZX585-B4V7,135	BZX84J-C4V7,115	EDZVFHT2R4.7B
Manufacturer	Panasonic	NXP Semiconductors	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.	Rohm Semiconductor
Voltage - Zener (Nom)	4.7 V	4.7 V	4.7 V	4.7 V	4.7 V	4.65 V
Tolerance	±3%	±5%	±2%	±2%	±5%	±2.15%
Power - Max	150 mW	375 mW	300 mW	300 mW	550 mW	150 mW
Impedance (Max)	80 Ohms	78 Ohms	80 Ohms	80 Ohms	80 Ohms	100 Ohms
Current - Reverse Leakage @ Vr	2 µA @ 1 V	3 µA @ 2 V	3 µA @ 2 V	3 µA @ 2 V	3 µA @ 2 V	2 µA @ 1 V
Voltage - Forward (Vf) (Max) @ If	1 V @ 10 mA	900 mV @ 10 mA	1.1 V @ 100 mA	1.1 V @ 100 mA	1.1 V @ 100 mA	Not specified
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	SC-79, SOD-523	SOD-123F	SC-79, SOD-523	SC-79, SOD-523	SC-90, SOD-323F	SC-79, SOD-523
Product Status	Obsolete	Active	Active	Active	Active	Active
Operating Temperature	Not specified	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C	150°C (TJ)
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Board-Level Replacement (No Layout Changes):

BZX585-B4V7,115 and BZX585-B4V7,135 are the primary substitutes. Both maintain the SOD-523 package footprint identical to the MAZS0470ML, enabling direct PCB substitution. These parts are manufactured by Nexperia USA Inc. with active product status, AEC-Q100 automotive qualification, and ROHS3 compliance. The increased power rating (300 mW versus 150 mW) provides design margin without circuit modification. Voltage tolerance of ±2% exceeds the original ±3% specification.

For Automotive Applications:

BZX585-B4V7,115, BZX585-B4V7,135, BZX84J-C4V7,115, and EDZVFHT2R4.7B all carry automotive-grade qualifications (AEC-Q100 or AEC-Q101). These parts are suitable for automotive circuit designs requiring component traceability and temperature stability across -65°C to 150°C operating ranges.

For Matched Power Dissipation:

EDZVFHT2R4.7B from Rohm Semiconductor provides 150 mW power rating matching the original MAZS0470ML specification. This part maintains the same package footprint (SC-79/SOD-523) and reverse leakage characteristics (2 µA @ 1 V). The nominal Zener voltage of 4.65 V falls within the ±3% tolerance band of the original 4.7 V specification.

For Enhanced Thermal Performance:

BZX84J-C4V7,115 offers the highest power dissipation (550 mW) among available substitutes. This part requires SOD-323F package accommodation but provides significant thermal headroom for applications with elevated power dissipation requirements.

All substitute parts maintain MSL rating of 1 (Unlimited) and are available in active production status with established supply chains.

Frequently Asked Questions (FAQ)

Q: Can BZX585-B4V7,115 be used as a direct replacement for MAZS0470ML without PCB modifications?

A: Yes. BZX585-B4V7,115 maintains the identical SOD-523 package footprint and pin configuration as the MAZS0470ML. No PCB layout changes are required for board-level substitution.

Q: What is the significance of the ±2% tolerance in BZX585-B4V7 compared to the ±3% tolerance of MAZS0470ML?

A: The ±2% tolerance specification of BZX585-B4V7 represents tighter voltage regulation than the original ±3% specification. This provides improved circuit performance and reduced voltage variation across the component population.

Q: Is EDZVFHT2R4.7B suitable for applications requiring exact power rating matching?

A: Yes. EDZVFHT2R4.7B provides 150 mW maximum power dissipation, matching the original MAZS0470ML specification. The nominal Zener voltage of 4.65 V is within the ±3% tolerance band of the 4.7 V specification.

Q: Can BZX84J-C4V7,115 be used in place of MAZS0470ML?

A: BZX84J-C4V7,115 is electrically compatible with the MAZS0470ML but requires PCB layout modification due to its SOD-323F package format. The part provides enhanced power dissipation (550 mW) and maintains the 4.7 V Zener voltage specification.

Q: What are the automotive qualification differences between the substitute parts?

A: BZX585-B4V7,115 and BZX585-B4V7,135 carry AEC-Q100 qualification. BZT52H-C4V7,115, BZX84J-C4V7,115, and EDZVFHT2R4.7B carry AEC-Q101 qualification. Both qualifications indicate automotive-grade reliability; AEC-Q100 applies to discrete semiconductors, while AEC-Q101 applies to optoelectronic devices. All parts meet automotive industry standards.

Q: Are all substitute parts RoHS compliant?

A: BZX585-B4V7,115, BZX585-B4V7,135, BZX84J-C4V7,115, and EDZVFHT2R4.7B are ROHS3 compliant. BZT52H-C4V7,115 RoHS status is not specified in the provided data.

Q: What is the difference between BZX585-B4V7,115 and BZX585-B4V7,135?

A: Both parts are identical in electrical specifications and package format (SOD-523). The difference is in packaging configuration: BZX585-B4V7,115 is supplied in Tape & Reel format, while BZX585-B4V7,135 is also supplied in Tape & Reel format. Both are active products with equivalent performance characteristics.

Q: Can BZT52H-C4V7,115 be used despite its SOD-123F package difference?

A: BZT52H-C4V7,115 is electrically compatible but requires PCB layout modification due to its SOD-123F package format, which differs from the original SOD-523 package. The part provides enhanced power dissipation (375 mW) and automotive qualification (AEC-Q101).

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