P6SMB9.1AHM3_A/I Equivalent & Substitute Parts

Part Overview

The P6SMB9.1AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, designed for telecom applications requiring transient overvoltage protection. This component features a 9.1V reverse standoff voltage with a 13.4V maximum clamping voltage and 44.8A peak pulse current capability in a surface mount DO-214AA (SMB) package.

The P6SMB9.1AHM3_A/I is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this TVS diode specification.

Substiute Parts

P6SMB9.1AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 888P6SMB9.1AHM3_A/I Datasheet

Current PartRFQ

P6SMB9.1AHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1091P6SMB9.1AHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6SMB9.1AHM3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 7.78V
• Voltage - Breakdown (Min): 8.65V
• Voltage - Clamping (Max) @ Ipp: 13.4V
• Current - Peak Pulse (10/1000µs): 44.8A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA (SMB)
• Unidirectional Channels: 1
• Operating Temperature Range: -65°C to 150°C (TJ)
• Grade: Automotive
• Qualification: AEC-Q101

The substitute part P6SMB9.1AHM3_B/I maintains identical electrical and mechanical specifications across all parameters listed above. The primary distinction is product status and packaging configuration, with the substitute part classified as active and supplied in Tape & Reel (TR) format.

Parameter Comparison

Engineering Selection Recommendations

The P6SMB9.1AHM3_B/I is the direct equivalent substitute for the obsolete P6SMB9.1AHM3_A/I. Both components are manufactured by Vishay General Semiconductor - Diodes Division and share identical electrical specifications, thermal operating range, and automotive-grade qualification (AEC-Q101).

The substitute part maintains full compliance with ROHS3 and REACH requirements. The primary difference is product lifecycle status: the P6SMB9.1AHM3_B/I is actively manufactured and available, whereas the P6SMB9.1AHM3_A/I is obsolete. The packaging format differs (Tape & Reel versus bulk), which affects supply chain logistics but does not impact component performance or circuit compatibility.

For new designs or production continuity, the P6SMB9.1AHM3_B/I is the appropriate selection. Existing designs utilizing the P6SMB9.1AHM3_A/I can transition to this substitute without circuit modification or re-qualification, provided that the Tape & Reel packaging format is compatible with assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the P6SMB9.1AHM3_B/I be used as a direct replacement for the P6SMB9.1AHM3_A/I?

A: Yes. Both components are electrically and mechanically identical across all specified parameters. The P6SMB9.1AHM3_B/I is the active production equivalent and can be substituted without circuit redesign.

Q: What is the difference between these two part numbers?

A: The P6SMB9.1AHM3_A/I is obsolete and supplied in bulk packaging. The P6SMB9.1AHM3_B/I is the active equivalent supplied in Tape & Reel (TR) format. All electrical and thermal specifications are identical.

Q: Are there any compliance or qualification differences?

A: No. Both parts carry identical automotive-grade qualification (AEC-Q101), ROHS3 compliance, and REACH status. There are no compliance barriers to substitution.

Q: Does the packaging format affect circuit performance?

A: No. Tape & Reel packaging is a supply chain and assembly format consideration only. It does not affect component electrical performance, thermal characteristics, or reliability.

Q: What is the operating temperature range for this TVS diode?

A: The operating temperature range is -65°C to 150°C (junction temperature). Both the main part and substitute maintain this specification.

Q: Is this component suitable for automotive applications?

A: Yes. Both the P6SMB9.1AHM3_A/I and P6SMB9.1AHM3_B/I are automotive-grade components qualified to AEC-Q101 standard and are suitable for automotive telecom protection circuits.