MMSZ4714-TP Equivalent & Substitute Parts

Part Overview

The MMSZ4714-TP is a Zener diode rated at 33 V nominal voltage with 500 mW maximum power dissipation in a surface mount SOD-123 package. Manufactured by Micro Commercial Co, this component is designed for voltage regulation and protection applications in electronic circuits. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package type and functional category. Substitution becomes necessary due to inventory availability, supply chain considerations, or manufacturing source preferences while maintaining circuit performance requirements.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	33	V
Tolerance	±5%	%
Power - Max	500	mW
Current - Reverse Leakage @ Vr	10 nA @ 25 V	nA
Package / Case	SOD-123	—
Mounting Type	Surface Mount	—
Operating Temperature Range	-55°C ~ 150°C	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the MMSZ4714-TP is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

Zener voltage: 33 V nominal with ±5% tolerance
Maximum power dissipation: 500 mW
Reverse leakage current: 10 nA @ 25 V
Operating temperature range: -55°C to 150°C

Mechanical & Package Requirements:

Package type: SOD-123 surface mount
Mounting configuration: Surface mount technology

Compliance & Regulatory:

RoHS3 compliance status
REACH unaffected classification
ECCN: EAR99

The MMSZ4714T1G from onsemi qualifies as a direct substitute based on identical electrical ratings, package specifications, and regulatory compliance. Packaging format differences (Tape & Reel versus Cut Tape & Digi-Reel) do not affect functional equivalence or circuit performance.

Parameter Comparison

Parameter	MMSZ4714-TP (Micro Commercial Co)	MMSZ4714T1G (onsemi)	Match Status
Voltage - Zener (Nom)	33 V	33 V	Identical
Tolerance	±5%	±5%	Identical
Power - Max	500 mW	500 mW	Identical
Current - Reverse Leakage @ Vr	10 nA @ 25 V	10 nA @ 25 V	Identical
Voltage - Forward (Vf) (Max) @ If	950 mV @ 10 mA	900 mV @ 10 mA	Within Tolerance
Operating Temperature Range	-55°C ~ 150°C	-55°C ~ 150°C	Identical
Package / Case	SOD-123	SOD-123	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
REACH Status	REACH Unaffected	REACH Unaffected	Identical
ECCN	EAR99	EAR99	Identical

Engineering Selection Recommendations

Both the MMSZ4714-TP and MMSZ4714T1G maintain Active product status with full regulatory compliance. Selection between these parts is based on the following factors:

Inventory & Availability: The MMSZ4714-TP (Micro Commercial Co) has 3,861 units in stock, while the MMSZ4714T1G (onsemi) has 2,680 units available. Both represent adequate supply for production requirements.

Compliance Certification: Both parts carry identical RoHS3 compliance, REACH unaffected status, and EAR99 ECCN classification, ensuring regulatory equivalence for all applications.

Packaging Format: The MMSZ4714-TP is supplied in Tape & Reel format, while the MMSZ4714T1G is available in Cut Tape & Digi-Reel format. Packaging selection depends on assembly equipment compatibility and handling procedures rather than functional performance.

Forward Voltage Characteristic: The MMSZ4714T1G exhibits a forward voltage of 900 mV @ 10 mA compared to 950 mV @ 10 mA for the MMSZ4714-TP. This 50 mV difference remains within acceptable tolerance for Zener diode applications and does not affect circuit functionality.

Frequently Asked Questions (FAQ)

Q: Can the MMSZ4714T1G replace the MMSZ4714-TP in existing designs?

A: Yes. Both parts share identical Zener voltage (33 V), power rating (500 mW), tolerance (±5%), reverse leakage current (10 nA @ 25 V), operating temperature range (-55°C to 150°C), and SOD-123 package specifications. The forward voltage difference of 50 mV is within normal Zener diode operating tolerances and does not impact circuit performance.

Q: Are there packaging compatibility considerations?

A: The MMSZ4714-TP is supplied in Tape & Reel format, while the MMSZ4714T1G uses Cut Tape & Digi-Reel packaging. Both formats are compatible with standard surface mount assembly equipment. Packaging selection should align with your production line's tape handling and feeder specifications.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the MMSZ4714-TP and MMSZ4714T1G are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99. They are functionally equivalent for all regulatory and compliance purposes.

Q: What is the significance of the forward voltage difference?

A: The MMSZ4714T1G has a forward voltage of 900 mV @ 10 mA versus 950 mV @ 10 mA for the MMSZ4714-TP. This 50 mV variation is typical within Zener diode manufacturing tolerances and does not affect voltage regulation or protection circuit performance in standard applications.

Q: Can I use either part interchangeably on the same PCB?

A: Yes. Both parts are pin-compatible in the SOD-123 package and have identical electrical specifications for Zener voltage, power dissipation, and leakage current. No circuit modifications are required for substitution.

Q: Which part should I select for new designs?

A: Selection between MMSZ4714-TP and MMSZ4714T1G should be based on packaging format compatibility with your assembly process and current inventory availability. Both parts are functionally equivalent and maintain identical compliance certifications.

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