MMSZ4710-TP Equivalent & Substitute Parts

Part Overview

The MMSZ4710-TP is an active Zener diode manufactured by Micro Commercial Co, designed for voltage regulation and protection applications in surface mount configurations. This component operates at a nominal Zener voltage of 25 V with 500 mW power dissipation capability in a compact SOD-123 package. The part is supplied in Tape & Reel packaging format and maintains full RoHS3 and REACH compliance status. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part becomes unavailable or when alternative packaging formats are required.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nominal)	25	V
Power - Maximum	500	mW
Tolerance	±5%	%
Current - Reverse Leakage @ Vr	10 nA @ 19 V	nA
Voltage - Forward (Max) @ If	950 mV @ 10 mA	mV
Operating Temperature Range	-55 to 150	°C
Mounting Type	Surface Mount	—
Package / Case	SOD-123	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the MMSZ4710-TP are identified based on electrical and mechanical parameter equivalence within the Zener diode category. The substitution logic is based on the following critical parameters:

Electrical Equivalence Criteria:

Nominal Zener voltage: 25 V
Maximum power dissipation: 500 mW
Voltage tolerance: ±5%
Reverse leakage current: 10 nA @ 19 V
Operating temperature range: -55°C to 150°C

Mechanical Equivalence Criteria:

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

Compliance Criteria:

RoHS3 compliance status
REACH compliance status

The MMSZ4710T1G manufactured by onsemi meets all electrical and mechanical equivalence criteria and maintains identical compliance certifications. The primary distinction between the main part and the substitute is the packaging format: the MMSZ4710-TP is supplied in Tape & Reel format, while the MMSZ4710T1G is supplied in Cut Tape and Digi-Reel format. Both parts share the same base product number (MMSZ4710) and are functionally interchangeable at the component level.

Parameter Comparison

Parameter	MMSZ4710-TP (Micro Commercial Co)	MMSZ4710T1G (onsemi)	Match Status
Voltage - Zener (Nominal)	25 V	25 V	Identical
Power - Maximum	500 mW	500 mW	Identical
Tolerance	±5%	±5%	Identical
Current - Reverse Leakage @ Vr	10 nA @ 19 V	10 nA @ 19 V	Identical
Voltage - Forward (Max) @ If	950 mV @ 10 mA	900 mV @ 10 mA	Within Tolerance
Operating Temperature Range	-55°C to 150°C	-55°C to 150°C	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Package / Case	SOD-123	SOD-123	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
REACH Status	REACH Unaffected	REACH Unaffected	Identical
Packaging Format	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Different

Engineering Selection Recommendations

Both the MMSZ4710-TP and MMSZ4710T1G are active products with confirmed inventory availability. Selection between these parts is determined by packaging and supply chain requirements rather than electrical performance.

MMSZ4710-TP (Micro Commercial Co) is the primary specification when Tape & Reel packaging is required for automated assembly processes. This format is standard for high-volume production environments.

MMSZ4710T1G (onsemi) serves as a direct functional equivalent when Cut Tape or Digi-Reel packaging formats are acceptable or preferred. This part maintains identical electrical specifications and compliance certifications. The forward voltage specification (900 mV @ 10 mA) is marginally lower than the main part (950 mV @ 10 mA), remaining within acceptable operating parameters for Zener diode applications.

Both parts are RoHS3 compliant and REACH unaffected, confirming suitability for regulated manufacturing environments. Selection should be based on packaging availability, procurement lead times, and assembly process requirements.

Frequently Asked Questions (FAQ)

Q: Can MMSZ4710T1G be used as a direct replacement for MMSZ4710-TP in production assembly?

A: Yes. Both parts are electrically identical with matching Zener voltage (25 V), power rating (500 mW), tolerance (±5%), and operating temperature range (-55°C to 150°C). The SOD-123 package footprint is identical. The primary difference is packaging format: Tape & Reel versus Cut Tape/Digi-Reel. Assembly equipment compatibility depends on your specific feeder configuration.

Q: What is the significance of the forward voltage difference between these parts?

A: The MMSZ4710-TP specifies 950 mV maximum forward voltage at 10 mA, while the MMSZ4710T1G specifies 900 mV at the same current. This 50 mV difference is within normal manufacturing tolerance for Zener diodes and does not affect substitution suitability for voltage regulation or protection applications.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both parts operate across the identical temperature range of -55°C to 150°C (junction temperature). No thermal derating adjustments are required when substituting between these parts.

Q: Do packaging format differences affect circuit performance?

A: No. Packaging format (Tape & Reel versus Cut Tape/Digi-Reel) affects only the supply and handling method, not electrical performance or circuit behavior. The component itself remains identical.

Q: Are both parts compliant with current regulatory requirements?

A: Yes. Both MMSZ4710-TP and MMSZ4710T1G are RoHS3 compliant and REACH unaffected, confirming compliance with current environmental and hazardous substance regulations.

Q: What inventory status should influence part selection?

A: The MMSZ4710T1G (onsemi) currently has higher inventory availability (2100 pcs) compared to the MMSZ4710-TP (637 pcs). If supply continuity is a priority, the onsemi part may be preferred, provided packaging format is compatible with your assembly process.

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