MAZ30470ML Equivalent & Substitute Parts

Part Overview

The MAZ30470ML is a Zener diode manufactured by Panasonic Electronic Components, rated at 4.7 V nominal voltage with 200 mW maximum power dissipation. This component is packaged in a Surface Mount Mini3-G1 package (TO-236-3/SC-59/SOT-23-3 footprint) and is classified as obsolete. Due to its obsolete status and limited availability relative to active alternatives, equivalent substitute parts with matching or superior electrical characteristics are necessary for new designs and production continuity.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	4.7	V
Tolerance	±6%	—
Power - Max	200	mW
Impedance (Max)	80	Ohms
Current - Reverse Leakage @ Vr	3	µA @ 1 V
Voltage - Forward (Vf) (Max) @ If	900	mV @ 10 mA
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—
RoHS Status	RoHS non-compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the MAZ30470ML is determined by the following critical parameters:

Primary Matching Criteria:

Zener voltage: 4.7 V nominal
Package compatibility: TO-236-3/SC-59/SOT-23-3 Surface Mount
Impedance: 80 Ohms maximum
Forward voltage: 900 mV maximum @ 10 mA
Reverse leakage: 3 µA maximum @ specified voltage

Acceptable Substitution Ranges:

Power rating: Equal to or greater than 200 mW
Tolerance: ±6% or tighter
Reverse leakage: Equal to or less than specified values

Substitute parts are grouped into two categories:

Category A - Direct 4.7 V Substitutes (Identical Zener Voltage): Parts with 4.7 V nominal zener voltage maintain exact voltage regulation characteristics. These include BZX84-A4V7,215, BZX84B4V7LT1G, BZX84C4V7LT1G, and SZBZX84C4V7ET1G.

Category B - Alternative Voltage Substitutes (5.1 V Zener Voltage): Parts with 5.1 V nominal zener voltage (SZBZX84C5V1ET1G and SZBZX84C5V1ET3G) are listed as substitutes but operate at a different regulation voltage. These are suitable only for applications where the higher voltage is acceptable.

Parameter Comparison

Parameter	MAZ30470ML	BZX84-A4V7,215	BZX84B4V7LT1G	BZX84C4V7LT1G	SZBZX84C4V7ET1G	SZBZX84C5V1ET1G	SZBZX84C5V1ET3G
Manufacturer	Panasonic	Nexperia USA Inc.	onsemi	onsemi	onsemi	onsemi	onsemi
Voltage - Zener (Nom)	4.7 V	4.7 V	4.7 V	4.7 V	4.7 V	5.1 V	5.1 V
Tolerance	±6%	±1%	±1.91%	±6%	±6%	±6%	±6%
Power - Max	200 mW	250 mW	250 mW	225 mW	225 mW	225 mW	225 mW
Impedance (Max)	80 Ω	80 Ω	80 Ω	80 Ω	80 Ω	60 Ω	60 Ω
Current - Reverse Leakage @ Vr	3 µA @ 1 V	3 µA @ 2 V	3 µA @ 2 V	3 µA @ 2 V	3 µA @ 2 V	2 µA @ 2 V	2 µA @ 2 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA
Operating Temperature	—	-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	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
AEC-Q101 Qualification	—	Yes	—	—	Yes	Yes	Yes

Engineering Selection Recommendations

For Direct Replacement (4.7 V Zener Voltage):

The BZX84C4V7LT1G (onsemi) is the primary recommended substitute. It maintains identical zener voltage (4.7 V), matching impedance (80 Ω), and equivalent tolerance (±6%). Power rating is increased to 225 mW, providing margin above the original 200 mW specification. The part is in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. High inventory availability (65,100 pcs) supports production continuity.

The SZBZX84C4V7ET1G (onsemi) is an alternative direct replacement with automotive-grade qualification (AEC-Q101) and identical electrical specifications to BZX84C4V7LT1G. This part is suitable for applications requiring automotive-grade components.

The BZX84-A4V7,215 (Nexperia USA Inc.) offers superior tolerance (±1%) and higher power rating (250 mW) with AEC-Q101 qualification. This part is appropriate for applications requiring tighter voltage tolerance and automotive qualification.

The BZX84B4V7LT1G (onsemi) provides improved tolerance (±1.91%) and 250 mW power rating. This part is suitable for applications where tighter tolerance is beneficial.

For Alternative Voltage Applications (5.1 V Zener Voltage):

The SZBZX84C5V1ET1G and SZBZX84C5V1ET3G (onsemi) operate at 5.1 V nominal zener voltage with automotive-grade qualification (AEC-Q101). These parts are substitutes only for applications where 5.1 V regulation is acceptable. Both parts feature improved impedance (60 Ω) and lower reverse leakage (2 µA @ 2 V) compared to the original specification.

Compliance Considerations:

All recommended substitutes are ROHS3 compliant, addressing environmental regulatory requirements. The original MAZ30470ML is RoHS non-compliant. Substitutes with AEC-Q101 qualification (BZX84-A4V7,215, SZBZX84C4V7ET1G, SZBZX84C5V1ET1G, SZBZX84C5V1ET3G) are suitable for automotive applications.

Frequently Asked Questions (FAQ)

Q: Can BZX84C4V7LT1G be used as a direct replacement for MAZ30470ML?

A: Yes. BZX84C4V7LT1G maintains the same 4.7 V zener voltage, 80 Ω impedance, and ±6% tolerance. The package (TO-236-3/SOT-23-3) is identical. Power rating is increased from 200 mW to 225 mW, which is acceptable for direct substitution. The part is in active production with ROHS3 compliance.

Q: What is the difference between the 4.7 V and 5.1 V substitute options?

A: The 4.7 V substitutes (BZX84C4V7LT1G, SZBZX84C4V7ET1G, BZX84-A4V7,215, BZX84B4V7LT1G) maintain identical voltage regulation to the original MAZ30470ML. The 5.1 V substitutes (SZBZX84C5V1ET1G, SZBZX84C5V1ET3G) operate at a higher voltage and are suitable only for applications where 5.1 V regulation is acceptable. Zener voltage cannot be changed after component selection.

Q: Why do some substitutes have tighter tolerance than the original part?

A: Tighter tolerance (±1% or ±1.91%) represents improved manufacturing precision compared to the original ±6% tolerance. Substitutes with tighter tolerance provide more stable voltage regulation but are not required for direct replacement. They are suitable for applications requiring higher voltage accuracy.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts listed are packaged in TO-236-3/SC-59/SOT-23-3 Surface Mount packages, which are mechanically and electrically compatible with the original MAZ30470ML footprint.

Q: What is the significance of AEC-Q101 qualification?

A: AEC-Q101 is an automotive industry qualification standard. Parts with AEC-Q101 qualification (BZX84-A4V7,215, SZBZX84C4V7ET1G, SZBZX84C5V1ET1G, SZBZX84C5V1ET3G) are suitable for automotive applications. The original MAZ30470ML does not carry this qualification.

Q: Can I use a substitute with higher power rating than the original?

A: Yes. All listed substitutes have power ratings equal to or greater than the original 200 mW specification (225 mW or 250 mW). Higher power rating provides additional thermal margin and is acceptable for direct replacement.

Q: What is the difference between BZX84C4V7LT1G and SZBZX84C4V7ET1G?

A: Both parts have identical electrical specifications (4.7 V, ±6%, 225 mW, 80 Ω impedance). The primary difference is that SZBZX84C4V7ET1G carries AEC-Q101 automotive qualification. Select SZBZX84C4V7ET1G for automotive applications; either part is suitable for general industrial applications.

Q: Why is the original MAZ30470ML listed as obsolete?

A: Obsolete status indicates the manufacturer (Panasonic Electronic Components) has discontinued production. Active substitutes from other manufacturers (onsemi, Nexperia USA Inc.) provide equivalent or superior performance with ongoing production support and availability.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 compliant. The original MAZ30470ML is RoHS non-compliant. RoHS compliance is required for most modern applications and regulatory environments.

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