P6SMB9.1CAHM3_A/I Equivalent & Substitute Parts

Part Overview

The P6SMB9.1CAHM3_A/I is a bidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at 9.1V reverse standoff voltage with a 13.4V maximum clamping voltage and 44.8A peak pulse current rating. The device is designed for telecom applications requiring transient overvoltage protection in automotive-grade environments.

The P6SMB9.1CAHM3_A/I carries an Obsolete product status. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications currently utilizing this component.

Substiute Parts

P6SMB9.1CAHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1011P6SMB9.1CAHM3_A/I Datasheet

Current PartRFQ

P6SMB9.1CAHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 967P6SMB9.1CAHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P6SMB9.1CAHM3_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
• Bidirectional Channels: 1
• Package / Case: DO-214AA (SMB)
• Mounting Type: Surface Mount
• Operating Temperature Range: -65°C ~ 150°C (TJ)
• Grade: Automotive
• Qualification: AEC-Q101

The P6SMB9.1CAHM3_B/I qualifies as a direct substitute, maintaining identical electrical performance and mechanical specifications while offering Active product status and Tape & Reel packaging availability.

Parameter Comparison

Engineering Selection Recommendations

The P6SMB9.1CAHM3_B/I is the manufacturer-recommended substitute for the obsolete P6SMB9.1CAHM3_A/I. Both components maintain identical electrical and mechanical specifications, ensuring direct functional equivalence in circuit applications.

The P6SMB9.1CAHM3_B/I offers the advantage of Active product status, providing assured long-term availability and supply chain continuity. Both parts carry AEC-Q101 automotive qualification and ROHS3 compliance, meeting regulatory requirements for automotive and telecom applications.

The primary distinction between the two parts is packaging format: the substitute is available in Tape & Reel configuration, which is standard for high-volume manufacturing and automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the P6SMB9.1CAHM3_B/I be used as a direct replacement for the P6SMB9.1CAHM3_A/I?

A: Yes. Both components share identical electrical ratings (7.78V reverse standoff, 13.4V clamping voltage, 44.8A peak pulse current, 600W peak power), mechanical specifications (DO-214AA SMB package, surface mount), and automotive qualifications (AEC-Q101). No circuit modifications are required.

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

A: The primary difference is product status and packaging. The P6SMB9.1CAHM3_A/I is Obsolete, while the P6SMB9.1CAHM3_B/I is Active. The substitute is supplied in Tape & Reel format, whereas the original may have been supplied in bulk packaging. Electrical and mechanical performance are identical.

Q: Are there any temperature or compliance differences?

A: No. Both parts operate across the same temperature range (-65°C to 150°C junction temperature), carry identical automotive-grade classification, and meet ROHS3 and REACH compliance requirements.

Q: Is the DO-214AA (SMB) package identical between both parts?

A: Yes. Both components use the same DO-214AA surface mount package, ensuring mechanical and thermal compatibility with existing PCB layouts and assembly processes.

Q: Why should I transition from the obsolete part to the active substitute?

A: The P6SMB9.1CAHM3_B/I offers assured long-term availability as an Active product. Transitioning to the active substitute eliminates supply chain risk associated with obsolete components and ensures consistent sourcing for current and future production runs.