2M51Z B0G Zener Diode Equivalent & Substitute Parts

Part Overview

The 2M51Z B0G is an active-status Zener diode manufactured by Taiwan Semiconductor Corporation, rated for 51 V nominal Zener voltage with 2 W maximum power dissipation. This component is packaged in the DO-204AC (DO-15) axial through-hole configuration and is ROHS3 compliant. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility within the Zener diode category. Alternative parts may be required due to inventory availability, lead time considerations, or specific application requirements within the defined parameter tolerance.

Substiute Parts

2M51Z B0G

Taiwan Semiconductor CorporationIn Stock: 10032M51Z B0G Datasheet

Current PartRFQ

1N5369B-TP

Micro Commercial CoIn Stock: 48621N5369B-TP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2M51Z B0G is determined by the following critical parameters:

Primary Matching Criteria:

• Zener voltage (Nom): 51 V ±5% tolerance
• Package type: DO-204AC / DO-15 axial through-hole configuration
• Mounting type: Through-hole
• Regulatory compliance: ROHS3 and REACH status

Secondary Compatibility Factors:

• Power rating: Equal to or greater than 2 W
• Impedance (Max): Lower impedance values indicate improved performance characteristics
• Reverse leakage current: Consistent with 500 nA @ 38.8 V specification
• Operating temperature range: Minimum coverage of -55°C to 150°C

The 1N5369B-TP meets all primary matching criteria and exceeds secondary compatibility factors through higher power rating (5 W) and lower impedance (27 Ohms), while maintaining identical Zener voltage and tolerance specifications.

Parameter Comparison

Engineering Selection Recommendations

2M51Z B0G (Primary Component)

The 2M51Z B0G is an active-status component with full ROHS3 compliance and REACH unaffected status. This part is suitable for applications requiring a 51 V Zener diode with 2 W power dissipation in standard through-hole configuration. The operating temperature range extends to 175°C, providing thermal margin for high-temperature environments.

1N5369B-TP (Substitute Component)

The 1N5369B-TP is an active-status substitute manufactured by Micro Commercial Co with identical ROHS3 and REACH compliance. This part provides equivalent Zener voltage and tolerance specifications with enhanced electrical performance through higher power rating (5 W) and lower impedance (27 Ohms). The operating temperature range is -55°C to 150°C. This component is suitable for direct substitution in applications where the 2M51Z B0G is unavailable, provided the maximum operating temperature requirement does not exceed 150°C.

Frequently Asked Questions (FAQ)

Q: Can the 1N5369B-TP directly replace the 2M51Z B0G in all applications?

A: The 1N5369B-TP is electrically compatible for substitution when the application operating temperature does not exceed 150°C. Both components share identical Zener voltage (51 V), tolerance (±5%), and reverse leakage specifications. The 1N5369B-TP provides superior performance through higher power rating and lower impedance.

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

A: The 1N5369B-TP has lower impedance (27 Ohms) compared to the 2M51Z B0G (48 Ohms). Lower impedance indicates improved voltage regulation characteristics and reduced dynamic resistance, resulting in better performance in voltage regulation applications.

Q: Are both parts suitable for high-temperature applications?

A: The 2M51Z B0G operates to 175°C, making it suitable for high-temperature environments. The 1N5369B-TP operates to 150°C. Selection depends on the specific maximum operating temperature requirement of the application.

Q: Do both parts use the same package configuration?

A: Both components use the DO-204AC / DO-15 axial through-hole package. They are mechanically and electrically compatible for PCB mounting and circuit integration.

Q: What regulatory compliance applies to both parts?

A: Both the 2M51Z B0G and 1N5369B-TP are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Q: Why would the 1N5369B-TP be selected over the 2M51Z B0G?

A: The 1N5369B-TP would be selected based on inventory availability, lead time, or when the enhanced power rating (5 W) and lower impedance (27 Ohms) provide performance advantages for the specific application circuit design.