TV02W780-G Equivalent & Substitute Parts

Part Overview

The TV02W780-G is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Comchip Technology, designed for general-purpose overvoltage protection applications. This surface-mount component operates across a temperature range of -55°C to 150°C and is ROHS3 compliant. The part is currently in active production status with 978 units available in inventory. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to supply constraints, design flexibility, or inventory optimization.

Substiute Parts

TV02W780-G

Comchip TechnologyIn Stock: 1060TV02W780-G Datasheet

Current PartRFQ

SMF78A

MeritekIn Stock: 3303SMF78A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TV02W780-G are qualified based on the following critical parameters that determine functional equivalence:

• Voltage - Reverse Standoff (Typ): 78V
• Voltage - Breakdown (Min): 86.7V
• Voltage - Clamping (Max) @ Ipp: 126V
• Current - Peak Pulse (10/1000µs): 1.59A
• Power - Peak Pulse: 200W
• Unidirectional Channels: 1
• Type: Zener
• Operating Temperature Range: -55°C to 150°C
• Mounting Type: Surface Mount
• Package Category: SOD-123 form factor

The SMF78A from Meritek meets all electrical performance criteria and operates within the same temperature range. Both parts share identical voltage ratings, peak pulse current specifications, and power dissipation capabilities. Package compatibility is maintained within the SOD-123 family, ensuring mechanical fit in existing PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

Both the TV02W780-G and SMF78A are active production components with ROHS3 compliance and MSL Level 1 rating, indicating no moisture sensitivity constraints during storage and handling. Selection between these parts should be based on availability and supply chain requirements. The SMF78A currently maintains higher inventory levels (3200 units) compared to the TV02W780-G (978 units), making it suitable for high-volume production scenarios. Both parts carry identical electrical specifications and operating temperature ranges, ensuring direct functional substitution without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can the SMF78A replace the TV02W780-G in existing designs?

A: Yes. Both parts share identical electrical specifications including voltage ratings, peak pulse current, power dissipation, and operating temperature range. The SOD-123FL package variant is mechanically compatible with SOD-123 PCB footprints.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, carry MSL Level 1 rating, and share identical REACH and ECCN classifications (EAR99).

Q: What is the difference between SOD-123 and SOD-123FL packages?

A: Both are surface-mount packages within the SOD-123 family. The FL designation indicates a specific lead-free variant. Both are mechanically compatible with standard SOD-123 PCB layouts.

Q: Are there any temperature-related limitations when substituting?

A: No. Both parts operate across the identical temperature range of -55°C to 150°C, ensuring equivalent thermal performance in all operating conditions.

Q: Which part should be selected for new designs?

A: Selection should be based on current supply availability and lead time requirements. Both parts are functionally equivalent and suitable for new production designs.