P6SMB75A-M3/52 Equivalent & Substitute Parts

Part Overview

The P6SMB75A-M3/52 is an active Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This unidirectional Zener diode operates in the DO-214AA (SMB) surface mount package and is designed for general-purpose transient voltage suppression applications. The part is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1). Finding equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate different packaging or sourcing requirements while maintaining electrical performance specifications.

Substiute Parts

P6SMB75A-M3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 30450P6SMB75A-M3/52 Datasheet

Current PartRFQ

P6SMB75A-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 3602P6SMB75A-E3/52 Datasheet

DirectRFQ

SZP6SMB75AT3G

Littelfuse Inc.In Stock: 2235SZP6SMB75AT3G Datasheet

DirectRFQ

P6SMB75A

Eaton - Electronics DivisionIn Stock: 2124P6SMB75A Datasheet

MFR RecommendedRFQ

P6SMB75A

Eaton - Electronics DivisionIn Stock: 2124P6SMB75A Datasheet

MFR RecommendedRFQ

SM6T75AY

STMicroelectronicsIn Stock: 5091SM6T75AY Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6SMB75A-M3/52 is determined by strict electrical and mechanical parameter matching. The critical parameters that define substitutability are:

• Voltage - Reverse Standoff (Typ): 64.1V
• Voltage - Breakdown (Min): 71.3V
• Voltage - Clamping (Max) @ Ipp: 103V
• Current - Peak Pulse (10/1000µs): 5.8A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount

Substitute parts are grouped into two categories:

Direct Electrical Equivalents (Packaging Variant): Parts that maintain identical electrical specifications but differ only in packaging format (Tape & Box vs. Tape & Reel).

Cross-Manufacturer Equivalents (Electrical Match): Parts from different manufacturers that meet or exceed the electrical performance requirements while maintaining the same package footprint and thermal characteristics.

Non-Equivalent Parts (Excluded from Substitution): Parts with significantly different electrical parameters (voltage or current ratings) are not suitable substitutes regardless of package similarity.

Parameter Comparison

Engineering Selection Recommendations

P6SMB75A-E3/52 (Vishay): This part is a direct electrical equivalent to the P6SMB75A-M3/52, differing only in packaging format (Tape & Reel instead of Tape & Box). Both are manufactured by Vishay and maintain identical electrical specifications. Selection is appropriate when Tape & Reel packaging is preferred for automated assembly processes. Product status is Active with ROHS3 compliance.

SZP6SMB75AT3G (Littelfuse): This cross-manufacturer equivalent from Littelfuse maintains identical electrical specifications to the main part and is packaged in Tape & Reel format. The part includes automotive-grade qualification (AEC-Q101) and provides additional design margin through specified capacitance (280pF @ 1MHz). Product status is Active with ROHS3 compliance. Selection is appropriate for applications requiring automotive-qualified components or when Littelfuse supply chain is preferred.

SM6T75AY (STMicroelectronics): This part shares the same reverse standoff voltage (64.1V) and breakdown voltage (71.3V) as the main part but exhibits different clamping voltage (134V vs. 103V) and peak pulse current specifications (30A at 8/20µs vs. 5.8A at 10/1000µs). This part is not electrically equivalent and is not recommended as a direct substitute. It is included for reference only as a higher-performance alternative for applications requiring enhanced transient suppression capability. Product status is Active with automotive-grade qualification (AEC-Q101) and ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can P6SMB75A-E3/52 be used as a direct replacement for P6SMB75A-M3/52?

A: Yes. Both parts are manufactured by Vishay and maintain identical electrical specifications. The only difference is packaging format: P6SMB75A-M3/52 uses Tape & Box while P6SMB75A-E3/52 uses Tape & Reel. Selection depends on assembly process requirements.

Q: Is SZP6SMB75AT3G from Littelfuse electrically compatible with the Vishay P6SMB75A-M3/52?

A: Yes. SZP6SMB75AT3G meets all electrical specifications of the P6SMB75A-M3/52, including reverse standoff voltage (64.1V), breakdown voltage (71.3V), clamping voltage (103V), and peak pulse current (5.8A). The part is cross-manufacturer compatible and includes automotive qualification.

Q: Why is SM6T75AY not recommended as a substitute?

A: SM6T75AY has different electrical performance characteristics. While it shares the same reverse standoff and breakdown voltages, its clamping voltage (134V) and peak pulse current rating (30A at 8/20µs) differ significantly from the P6SMB75A-M3/52 (103V clamping, 5.8A at 10/1000µs). This part is not electrically equivalent and may not provide the same circuit protection characteristics.

Q: What packaging formats are available for equivalent parts?

A: The P6SMB75A-M3/52 is supplied in Tape & Box format. Equivalent parts are available in Tape & Reel format (P6SMB75A-E3/52 and SZP6SMB75AT3G), which is preferred for high-volume automated assembly. All parts use the same DO-214AA (SMB) surface mount package footprint.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. P6SMB75A-E3/52, SZP6SMB75AT3G, and SM6T75AY are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the main part.

Q: Which substitute part should be selected for automotive applications?

A: Both SZP6SMB75AT3G (Littelfuse) and SM6T75AY (STMicroelectronics) carry automotive-grade qualification (AEC-Q101). For direct electrical equivalence, SZP6SMB75AT3G is recommended. SM6T75AY is suitable only if the higher clamping voltage and peak pulse current are acceptable for the application.