2M33ZH Zener Diode Equivalent & Substitute Parts

Part Overview

The 2M33ZH is an active-status Zener diode manufactured by Taiwan Semiconductor Corporation, rated for 33 V nominal Zener voltage with 2 W maximum power dissipation. This component is packaged in DO-204AC (DO-15) axial through-hole configuration and is qualified to AEC-Q101 automotive standards. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, design flexibility, or application-specific requirements within the allowed parameter ranges.

Substiute Parts

2M33ZH

Taiwan Semiconductor CorporationIn Stock: 9142M33ZH Datasheet

Current PartRFQ

1N5364B-TP

Micro Commercial CoIn Stock: 99221N5364B-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2M33ZH with the 1N5364B-TP is permissible based on the following electrical and mechanical compatibility criteria:

Matching Parameters:

• Zener voltage (Nom): Both rated at 33 V
• Voltage tolerance: Both ±5%
• Reverse leakage current: Both 500 nA @ 25.1 V
• Mounting type: Both through-hole configuration
• Package family: Both DO-15 axial packages (DO-204AC compatible)
• RoHS3 compliance: Both compliant
• REACH status: Both unaffected
• ECCN classification: Both EAR99

Allowable Differences:

• Power rating: 1N5364B-TP rated at 5 W (exceeds 2M33ZH at 2 W); higher power rating is acceptable for substitution
• Impedance: 1N5364B-TP at 10 Ohms (lower than 2M33ZH at 23 Ohms); lower impedance is acceptable
• Operating temperature upper limit: 1N5364B-TP at 150°C (lower than 2M33ZH at 175°C); application-dependent consideration required

Parameter Comparison

Engineering Selection Recommendations

2M33ZH Selection Criteria:

• Primary choice for applications requiring AEC-Q101 automotive qualification
• Suitable for operating environments up to 175°C junction temperature
• Specified impedance of 23 Ohms for defined circuit performance

1N5364B-TP Selection Criteria:

• Acceptable substitute where higher power dissipation capacity (5 W) provides design margin
• Lower impedance (10 Ohms) suitable for applications tolerant of this parameter variation
• Operating temperature limited to 150°C; not suitable for applications requiring 175°C operation
• Both components maintain identical Zener voltage and tolerance specifications
• Both components comply with RoHS3 and REACH regulatory requirements
• Both components carry EAR99 export classification

Frequently Asked Questions (FAQ)

Q: Can 1N5364B-TP directly replace 2M33ZH in all applications?

A: Direct substitution is permissible where the application operating temperature does not exceed 150°C. The 1N5364B-TP's higher power rating and lower impedance are compatible with circuits designed for the 2M33ZH. Applications requiring operation above 150°C require the 2M33ZH.

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

A: The 1N5364B-TP impedance of 10 Ohms is lower than the 2M33ZH impedance of 23 Ohms. Lower impedance results in improved voltage regulation characteristics. This difference is acceptable for substitution in standard voltage regulation applications.

Q: Are both parts suitable for automotive applications?

A: The 2M33ZH carries AEC-Q101 automotive qualification. The 1N5364B-TP does not list AEC-Q101 qualification in the provided specifications. Applications requiring automotive qualification must use the 2M33ZH.

Q: Do both parts use the same package?

A: Both parts use DO-15 axial through-hole packages. The 2M33ZH is specified as DO-204AC (DO-15), and the 1N5364B-TP is specified as DO-15. These packages are mechanically compatible for PCB mounting.

Q: What is the difference in packaging format between the main part and substitute?

A: The 2M33ZH is supplied in Tape & Reel (TR) format. The 1N5364B-TP is supplied in Cut Tape (CT) format. Both formats contain identical components; packaging format selection depends on assembly process requirements.

Q: Can the 1N5364B-TP be used in high-temperature applications?

A: The 1N5364B-TP maximum operating temperature is 150°C. Applications requiring sustained operation above 150°C require the 2M33ZH, which is rated to 175°C.