P6SMB7.5AHM3_A/I Equivalent & Substitute Parts

Part Overview

The P6SMB7.5AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for telecom applications requiring transient overvoltage protection. This component features a 6.4V reverse standoff voltage with an 11.3V maximum clamping voltage and 53.1A peak pulse current capability in a surface mount DO-214AA (SMB) package. The part is currently listed as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability.

Substiute Parts

P6SMB7.5AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 718P6SMB7.5AHM3_A/I Datasheet

Current PartRFQ

P6SMB7.5AHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 800P6SMB7.5AHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P6SMB7.5AHM3_A/I is determined by strict equivalence across the following critical parameters:

• Unidirectional channel configuration (1 channel)
• Voltage ratings: Reverse standoff 6.4V, breakdown minimum 7.13V, clamping maximum 11.3V
• Peak pulse current: 53.1A at 10/1000µs pulse width
• Peak pulse power: 600W
• Package type: DO-214AA (SMB) surface mount
• Operating temperature range: -65°C to 150°C
• Automotive grade with AEC-Q101 qualification
• ROHS3 compliance

The P6SMB7.5AHM3_B/I variant meets all these criteria while maintaining active product status, making it a direct functional equivalent suitable for replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

The P6SMB7.5AHM3_B/I is the direct equivalent for the obsolete P6SMB7.5AHM3_A/I. Both components share identical electrical specifications, thermal ratings, and mechanical packaging. The primary distinction is product status: the substitute maintains active manufacturing and distribution status, ensuring long-term supply chain reliability.

Both parts carry automotive-grade qualification with AEC-Q101 certification and ROHS3 compliance, meeting regulatory requirements for automotive and telecom applications. The identical DO-214AA (SMB) package footprint enables direct board-level substitution without design modification.

Frequently Asked Questions (FAQ)

Q: Can P6SMB7.5AHM3_B/I be used as a direct replacement for P6SMB7.5AHM3_A/I?

A: Yes. Both components are electrically and mechanically identical across all specified parameters, including voltage ratings, current handling, temperature range, and package type. The substitute is suitable for direct board-level replacement.

Q: What is the difference between the A/I and B/I variants?

A: The variants differ in packaging format. The A/I variant uses standard packaging, while the B/I variant is supplied in Tape & Reel (TR) format. Electrical and thermal specifications remain identical. Component selection depends on procurement and assembly requirements.

Q: Are both parts qualified for automotive applications?

A: Yes. Both the P6SMB7.5AHM3_A/I and P6SMB7.5AHM3_B/I carry automotive grade classification with AEC-Q101 qualification, suitable for automotive and telecom transient protection circuits.

Q: What are the critical parameters for substitution?

A: Substitution is valid when the following parameters match: unidirectional channel count (1), reverse standoff voltage (6.4V), clamping voltage (11.3V), peak pulse current (53.1A), peak pulse power (600W), operating temperature range (-65°C to 150°C), and DO-214AA (SMB) package type.

Q: Is the DO-214AA package compatible with existing PCB designs?

A: Yes. Both parts use the DO-214AA (SMB) surface mount package, ensuring footprint and land pattern compatibility with existing designs without PCB modification.