2M22Z Zener Diode Equivalent & Substitute Parts

Part Overview

The 2M22Z is an active-status zener diode manufactured by Taiwan Semiconductor Corporation, rated for 22 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 ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, application redesign, or supply chain considerations.

Substiute Parts

2M22Z

Taiwan Semiconductor CorporationIn Stock: 10502M22Z Datasheet

Current PartRFQ

1N5358B-TP

Micro Commercial CoIn Stock: 127351N5358B-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2M22Z is permissible with the 1N5358B-TP based on the following critical parameters:

Matching Electrical Characteristics:

• Zener voltage (Nom): 22 V (identical)
• Voltage tolerance: ±5% (identical)
• Reverse leakage current: 500 nA @ 16.7 V (identical)

Compatible Mechanical & Thermal Properties:

• Mounting type: Through Hole (identical)
• Package / Case: DO-15 / DO-204AC (identical)
• RoHS Status: ROHS3 Compliant (identical)
• Moisture Sensitivity Level: 1 (Unlimited) (identical)

Substitution Constraint: The 1N5358B-TP features higher maximum power dissipation (5 W versus 2 W) and lower impedance (3.5 Ohms versus 12 Ohms). These parameters represent enhanced performance characteristics and do not restrict substitution in applications designed for the 2M22Z. The 1N5358B-TP operates at a reduced maximum temperature (-55°C to 150°C versus -55°C to 175°C), which must be evaluated against specific application thermal requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (2M22Z): The 2M22Z is the specified component and remains the primary selection for applications designed to its exact specifications. Active product status and ROHS3 compliance confirm ongoing manufacturing support and regulatory alignment.

Substitute Selection (1N5358B-TP): The 1N5358B-TP is a valid substitute when the 2M22Z is unavailable. Both components maintain identical zener voltage, tolerance, and reverse leakage characteristics. The 1N5358B-TP provides superior power handling (5 W versus 2 W) and lower impedance (3.5 Ohms versus 12 Ohms), making it suitable for applications where the 2M22Z operates within its thermal and power constraints.

Thermal Consideration: Applications requiring sustained operation above 150°C must retain the 2M22Z, as the 1N5358B-TP maximum operating temperature is limited to 150°C.

Compliance Status: Both components are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99, ensuring regulatory compatibility across equivalent applications.

Frequently Asked Questions (FAQ)

Q: Can the 1N5358B-TP directly replace the 2M22Z in all applications?

A: The 1N5358B-TP is electrically compatible for zener voltage regulation applications. Substitution is valid when the application operating temperature does not exceed 150°C. Applications requiring operation above 150°C must use the 2M22Z.

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

A: The 1N5358B-TP impedance (3.5 Ohms) is lower than the 2M22Z (12 Ohms). Lower impedance results in improved voltage regulation and reduced output impedance under load transients. This represents enhanced performance and does not restrict substitution.

Q: Are the packages physically identical?

A: Both components use DO-15 axial through-hole packaging. Physical dimensions and lead spacing are compatible for direct board-level substitution without layout modification.

Q: Does the higher power rating of the 1N5358B-TP affect circuit operation?

A: The 1N5358B-TP 5 W rating indicates higher power dissipation capability. In circuits designed for the 2 W 2M22Z, the substitute will operate at lower thermal stress, extending component life without altering electrical performance.

Q: Are there compliance or certification differences between these parts?

A: Both components are ROHS3 compliant, REACH unaffected, and carry identical regulatory classifications (ECCN EAR99, HTSUS 8541.10.0050). No compliance barriers exist for substitution.

Q: What packaging formats are available for each part?

A: The 2M22Z is supplied in Tape & Reel (TR) format. The 1N5358B-TP is supplied in Cut Tape (CT) format. Both formats are standard for through-hole component distribution and do not affect electrical compatibility.