Equivalent & Substitute Parts: 2M6.8Z A0G

Part Overview

The 2M6.8Z A0G is a Zener diode manufactured by Taiwan Semiconductor Corporation, rated at 6.8 V nominal with 2 W maximum power dissipation. This component is designed for voltage regulation and protection applications in through-hole configurations using the DO-204AC (DO-15) axial package. The part is currently active in production with 1031 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility exist, enabling procurement flexibility and supply chain continuity.

Substiute Parts

2M6.8Z A0G

Taiwan Semiconductor CorporationIn Stock: 11202M6.8Z A0G Datasheet

Current PartRFQ

1N5342B-TP

Micro Commercial CoIn Stock: 234681N5342B-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2M6.8Z A0G is determined by the following critical parameters:

Electrical Compatibility Criteria:

• Zener voltage (Nom): 6.8 V nominal with ±5% tolerance
• Package / Case: DO-204AC, DO-15, or equivalent axial through-hole configuration
• Mounting Type: Through Hole
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variations:

• Power rating may exceed the original specification (higher power rating is acceptable for the same voltage class)
• Impedance may be lower than the original specification
• Reverse leakage current may be lower than the original specification
• Operating temperature range may differ, provided minimum requirements are met

The substitute part 1N5342B-TP meets all electrical compatibility criteria with identical zener voltage and tolerance, compatible through-hole packaging, and equivalent compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: 2M6.8Z A0G

Select the 2M6.8Z A0G when the application requires the specified 2 W power rating and the full operating temperature range of -55°C to 175°C. This part is ROHS3 compliant and carries unlimited moisture sensitivity classification.

Substitute Part: 1N5342B-TP

The 1N5342B-TP is electrically and mechanically compatible with the 2M6.8Z A0G. Both parts share identical zener voltage (6.8 V), tolerance (±5%), through-hole mounting configuration, and DO-15 axial package specification. Both are ROHS3 compliant with MSL 1 classification.

The 1N5342B-TP provides higher power dissipation capability (5 W versus 2 W) and lower impedance (1 Ohm versus 1.5 Ohms), making it suitable for applications where the original part may be supply-constrained. The operating temperature range of the substitute extends to 150°C maximum, which is 25°C lower than the primary part. Applications operating above 150°C require the primary part.

Both parts are active products with current manufacturing status and established supply availability.

Frequently Asked Questions (FAQ)

Q: Can the 1N5342B-TP directly replace the 2M6.8Z A0G in all applications?

A: The 1N5342B-TP is electrically and mechanically compatible for applications operating within -55°C to 150°C. Applications requiring operation above 150°C must use the 2M6.8Z A0G, which is rated to 175°C.

Q: What is the significance of the higher power rating on the 1N5342B-TP?

A: The 1N5342B-TP is rated for 5 W maximum power dissipation compared to 2 W for the 2M6.8Z A0G. A higher power rating indicates greater thermal capability and is acceptable for circuits designed for the lower power specification. The zener voltage and tolerance remain identical.

Q: Are both parts physically compatible with DO-15 axial through-hole PCB layouts?

A: Yes. Both the 2M6.8Z A0G and 1N5342B-TP use the DO-204AC (DO-15) axial package with identical through-hole mounting configuration. Physical board layout compatibility is confirmed.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, carry MSL 1 (Unlimited) moisture sensitivity classification, and are REACH unaffected. Compliance certifications are equivalent.

Q: What is the difference in reverse leakage current between these parts?

A: The 2M6.8Z A0G specifies 1 mA reverse leakage at 5.5 V, while the 1N5342B-TP specifies 10 µA at 5.2 V. The substitute part exhibits lower reverse leakage current, which may provide improved performance in low-current applications.

Q: Can the 2M6.8Z A0G be substituted with the 1N5342B-TP in high-temperature applications?

A: No. Applications requiring operation above 150°C must use the 2M6.8Z A0G, which is rated to 175°C. The 1N5342B-TP maximum operating temperature is 150°C.