MMSZ4711-TP Zener Diode Equivalent & Substitute Parts

Part Overview

The MMSZ4711-TP is a 27 V, 500 mW Zener diode manufactured by Micro Commercial Co in SOD-123 surface mount packaging. This component is classified as an active product and is ROHS3 compliant. The MMSZ4711-TP operates across a temperature range of -55°C to 150°C and is suitable for voltage regulation and protection applications requiring precise 27 V reference characteristics. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package type and performance envelope.

Substiute Parts

MMSZ4711-TP

Micro Commercial CoIn Stock: 958MMSZ4711-TP Datasheet

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MMSZ4711T1G

onsemiIn Stock: 47344MMSZ4711T1G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MMSZ4711-TP is determined by strict equivalence across the following critical parameters:

• Zener Voltage (Vz): 27 V nominal with ±5% tolerance
• Power Dissipation: 500 mW maximum rating
• Package Type: SOD-123 surface mount configuration
• Reverse Leakage Current: 10 nA @ 20.4 V
• Operating Temperature Range: -55°C to 150°C
• Compliance Status: ROHS3 and REACH requirements

Substitute parts must maintain identical electrical performance within these specifications and be available in the same physical package to ensure direct replacement without circuit redesign or PCB layout modification.

Parameter Comparison

Engineering Selection Recommendations

The MMSZ4711T1G manufactured by onsemi is a direct electrical and mechanical equivalent to the MMSZ4711-TP. Both components share identical zener voltage, power rating, tolerance, reverse leakage characteristics, and operating temperature specifications. Both are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

The MMSZ4711T1G exhibits a forward voltage specification of 900 mV @ 10 mA compared to 950 mV @ 10 mA for the MMSZ4711-TP. This 50 mV difference falls within acceptable engineering margins for zener diode applications and does not affect substitution validity for voltage regulation or protection circuit functions.

Both components are active products with established supply chains. Selection between these parts is based on availability, lead time, and procurement requirements rather than electrical performance differentiation.

Frequently Asked Questions (FAQ)

Q: Can the MMSZ4711T1G replace the MMSZ4711-TP in existing designs?

A: Yes. The MMSZ4711T1G is electrically and mechanically equivalent. Both components maintain 27 V zener voltage, 500 mW power rating, ±5% tolerance, and SOD-123 surface mount packaging. No circuit modifications or PCB layout changes are required.

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

A: The MMSZ4711-TP specifies 950 mV @ 10 mA forward voltage while the MMSZ4711T1G specifies 900 mV @ 10 mA. This 50 mV variance is within normal manufacturing tolerances for zener diodes and does not impact circuit performance in standard voltage regulation or protection applications.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the MMSZ4711-TP and MMSZ4711T1G are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: What packaging format is used for both components?

A: Both components are supplied in SOD-123 surface mount package configuration with Tape & Reel (TR) packaging for automated assembly processes.

Q: Do these components operate across the same temperature range?

A: Yes. Both the MMSZ4711-TP and MMSZ4711T1G operate across -55°C to 150°C junction temperature range, providing equivalent thermal performance characteristics.

Q: What is the reverse leakage current specification for these diodes?

A: Both components specify 10 nA reverse leakage current at 20.4 V, ensuring consistent leakage characteristics across the substitution pair.