P6SMB75A-M3/5B Equivalent & Substitute Parts

Part Overview

The P6SMB75A-M3/5B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the 64.1V reverse standoff range and provides 103V maximum clamping voltage with 5.8A peak pulse current capability. The device is classified as Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity while maintaining electrical and mechanical compatibility.

Substiute Parts

P6SMB75A-M3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 791P6SMB75A-M3/5B 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 eligibility for the P6SMB75A-M3/5B is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 64.1V
• 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
• Type: Zener
• Unidirectional Channels: 1
• Operating Temperature Range: -65°C to 150°C (TJ)

Parts are grouped into two categories:

Direct Equivalents: Parts with identical electrical specifications and package configuration, differing only in packaging format (Tape & Box vs. Tape & Reel) or manufacturer source.

Conditional Substitutes: Parts with the same voltage and clamping specifications but variations in peak pulse current, clamping voltage tolerance, or operating temperature range. These require application-level verification.

Parameter Comparison

Engineering Selection Recommendations

P6SMB75A-E3/52 (Vishay): Direct equivalent with identical electrical specifications and operating temperature range. Differs only in packaging format (Tape & Reel vs. Tape & Box). Suitable for direct substitution in all applications. Active product status and ROHS3 compliance maintained.

SZP6SMB75AT3G (Littelfuse): Electrical specifications match the main part exactly. Includes Automotive grade qualification (AEC-Q101) and higher inventory availability. Operating temperature range and clamping voltage are identical. Suitable for direct substitution. Active product status and ROHS3 compliance maintained.

SM6T75AY (STMicroelectronics): Shares identical reverse standoff voltage (64.1V) and breakdown voltage (71.3V). Clamping voltage is higher at 134V versus 103V, and peak pulse current is significantly higher at 30A (8/20µs) versus 5.8A (10/1000µs). Operating temperature minimum is -55°C versus -65°C. Automotive grade with AEC-Q101 qualification. Substitution requires application-level verification to confirm that higher clamping voltage and current rating do not introduce circuit incompatibilities.

All substitute parts maintain ROHS3 compliance, Moisture Sensitivity Level 1 (Unlimited), and REACH Unaffected status.

Frequently Asked Questions (FAQ)

Q: Can P6SMB75A-E3/52 be used as a direct replacement for P6SMB75A-M3/5B?

A: Yes. Both parts are manufactured by Vishay and have identical electrical specifications, operating temperature range, and package configuration. The only difference is packaging format (Tape & Reel versus Tape & Box). Direct substitution is supported.

Q: What is the difference between SZP6SMB75AT3G and the main part?

A: SZP6SMB75AT3G is manufactured by Littelfuse and has identical electrical specifications and operating temperature range. It includes Automotive grade qualification (AEC-Q101), which the main part does not specify. All other parameters match. Direct substitution is supported.

Q: Can SM6T75AY replace P6SMB75A-M3/5B?

A: SM6T75AY shares the same reverse standoff voltage (64.1V) and breakdown voltage (71.3V). However, it has a higher clamping voltage (134V vs. 103V) and significantly higher peak pulse current (30A vs. 5.8A). The operating temperature minimum is also -55°C instead of -65°C. Substitution is possible only if the application can tolerate these parameter differences. Circuit-level verification is required.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and maintain Moisture Sensitivity Level 1 (Unlimited).

Q: What packaging formats are available?

A: P6SMB75A-M3/5B is supplied in Tape & Box (TB) format. Equivalent parts P6SMB75A-E3/52, SZP6SMB75AT3G, and SM6T75AY are supplied in Tape & Reel (TR) format. All use DO-214AA (SMB) package configuration.

Q: Do the substitute parts have automotive qualification?

A: SZP6SMB75AT3G (Littelfuse) and SM6T75AY (STMicroelectronics) both carry Automotive grade with AEC-Q101 qualification. P6SMB75A-M3/5B and P6SMB75A-E3/52 do not specify automotive qualification.