2M22Z B0G Zener Diode Equivalent & Substitute Parts

Part Overview

The 2M22Z B0G 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 the DO-204AC (DO-15) axial through-hole configuration and is ROHS3 compliant. Substitute parts are identified when equivalent electrical parameters and mechanical compatibility exist, enabling component selection flexibility for circuit design and procurement requirements.

Key Parameters

Parameter	Value
Voltage - Zener (Nom) (Vz)	22 V
Tolerance	±5%
Power - Max	2 W
Impedance (Max) (Zzt)	12 Ohms
Current - Reverse Leakage @ Vr	500 nA @ 16.7 V
Operating Temperature	-55°C ~ 175°C (TJ)
Mounting Type	Through Hole
Package / Case	DO-204AC, DO-15, Axial
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 2M22Z B0G are identified based on the following critical parameters:

Primary Matching Criteria:

Zener voltage (Vz): 22 V nominal
Voltage tolerance: ±5%
Reverse leakage current: 500 nA @ 16.7 V
Package type: DO-15 axial through-hole
Mounting type: Through Hole
RoHS3 compliance
MSL rating: 1 (Unlimited)

Allowable Variation:

Power rating: Substitute parts may exceed the 2 W specification, as higher power-rated devices operate within the same voltage and leakage parameters
Impedance (Zzt): Substitute parts may have lower impedance values, indicating improved performance characteristics
Operating temperature range: Substitute parts may have narrower upper temperature limits while maintaining the -55°C minimum

The 1N5358B-TP meets all primary matching criteria and is therefore classified as a direct substitute.

Parameter Comparison

Parameter	2M22Z B0G	1N5358B-TP
Manufacturer	Taiwan Semiconductor Corporation	Micro Commercial Co
Voltage - Zener (Nom) (Vz)	22 V	22 V
Tolerance	±5%	±5%
Power - Max	2 W	5 W
Impedance (Max) (Zzt)	12 Ohms	3.5 Ohms
Current - Reverse Leakage @ Vr	500 nA @ 16.7 V	500 nA @ 16.7 V
Operating Temperature	-55°C ~ 175°C (TJ)	-55°C ~ 150°C
Mounting Type	Through Hole	Through Hole
Package / Case	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

2M22Z B0G (Primary Component)

The 2M22Z B0G is suitable for applications requiring a 22 V zener diode with 2 W power dissipation in through-hole configuration. This component maintains active product status and full ROHS3 compliance with unlimited moisture sensitivity rating.

1N5358B-TP (Substitute Component)

The 1N5358B-TP is electrically and mechanically compatible with the 2M22Z B0G. Both components share identical zener voltage (22 V), tolerance (±5%), reverse leakage current (500 nA @ 16.7 V), and package configuration (DO-15 axial). The 1N5358B-TP provides enhanced power handling (5 W versus 2 W) and lower impedance (3.5 Ohms versus 12 Ohms). Both components are ROHS3 compliant with MSL rating 1. The 1N5358B-TP operates across a narrower temperature range (-55°C to 150°C versus -55°C to 175°C). Component selection between these parts depends on application-specific power dissipation requirements and thermal operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the 1N5358B-TP replace the 2M22Z B0G in all applications?

A: The 1N5358B-TP is electrically compatible based on matching zener voltage (22 V), tolerance (±5%), and reverse leakage current (500 nA @ 16.7 V). Both components use identical DO-15 axial through-hole packaging. The primary consideration is the operating temperature range: the 1N5358B-TP operates to 150°C maximum junction temperature, while the 2M22Z B0G operates to 175°C. Applications requiring operation above 150°C require the 2M22Z B0G.

Q: What is the significance of the power rating difference (2 W versus 5 W)?

A: The 1N5358B-TP has a higher maximum power dissipation rating (5 W) compared to the 2M22Z B0G (2 W). Both components maintain identical zener voltage and leakage characteristics. The higher power rating of the 1N5358B-TP indicates greater thermal capacity and is suitable for applications with higher current demands. Applications designed for 2 W operation function with either component.

Q: Are both components RoHS compliant?

A: Yes. Both the 2M22Z B0G and 1N5358B-TP are ROHS3 compliant with MSL rating 1 (Unlimited moisture sensitivity level).

Q: What does the impedance difference (12 Ohms versus 3.5 Ohms) indicate?

A: Impedance (Zzt) represents the dynamic impedance of the zener diode. The 1N5358B-TP has lower impedance (3.5 Ohms) compared to the 2M22Z B0G (12 Ohms). Lower impedance indicates better voltage regulation characteristics and reduced voltage variation under load changes. Both components meet the specified zener voltage of 22 V.

Q: Are the components physically interchangeable?

A: Yes. Both components use the DO-15 axial through-hole package configuration. Physical dimensions and lead spacing are compatible for direct board-level substitution.

Q: What compliance certifications apply to both components?

A: Both components are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8541.10.0050.

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