P6SMB33CAHM3_A/I Equivalent & Substitute Parts

Part Overview

The P6SMB33CAHM3_A/I is a bidirectional transient voltage suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for telecom applications. This surface mount component operates in the DO-214AA (SMB) package and provides 600W peak pulse power protection with a 45.7V maximum clamping voltage. The part is classified as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement.

Substiute Parts

P6SMB33CAHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 744P6SMB33CAHM3_A/I Datasheet

Current PartRFQ

P6SMB33CAHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 807P6SMB33CAHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P6SMB33CAHM3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 28.2V
• Voltage - Breakdown (Min): 31.4V
• Voltage - Clamping (Max) @ Ipp: 45.7V
• Current - Peak Pulse (10/1000µs): 13.1A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Operating Temperature Range: -65°C ~ 150°C (TJ)
• Bidirectional Channels: 1
• Type: Zener
• Grade: Automotive
• Qualification: AEC-Q101

The P6SMB33CAHM3_B/I qualifies as a direct substitute. Both parts share identical electrical specifications, thermal operating range, automotive qualification, and package configuration. The primary distinction is product status: the substitute part is active and available, whereas the original is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The P6SMB33CAHM3_B/I is the direct equivalent for the obsolete P6SMB33CAHM3_A/I. Both components maintain identical electrical performance specifications, thermal operating range, and automotive-grade qualification (AEC-Q101). The substitute part carries active product status with current manufacturing support and availability.

Selection of the P6SMB33CAHM3_B/I ensures continuity of design performance while providing access to current inventory and supply chain stability. Both parts comply with ROHS3 and REACH requirements, supporting regulatory compliance objectives.

Frequently Asked Questions (FAQ)

Q: Can P6SMB33CAHM3_B/I be used as a direct replacement for P6SMB33CAHM3_A/I?

A: Yes. Both parts are electrically and mechanically identical across all critical parameters: voltage ratings, current handling, power dissipation, operating temperature range, package configuration, and automotive qualification. The substitute is the active production equivalent.

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

A: The primary difference is product status. The P6SMB33CAHM3_A/I is obsolete, while the P6SMB33CAHM3_B/I is active. The packaging format differs: the original uses bulk packaging, while the substitute is supplied in Tape & Reel (TR) format for automated assembly.

Q: Are there any thermal or electrical performance differences?

A: No. Both parts operate across the identical temperature range (-65°C to 150°C junction temperature) and deliver the same electrical characteristics: 28.2V reverse standoff voltage, 31.4V minimum breakdown voltage, 45.7V maximum clamping voltage, 13.1A peak pulse current, and 600W peak pulse power.

Q: Does the Tape & Reel packaging affect circuit performance?

A: No. Tape & Reel packaging is a supply format for automated pick-and-place assembly. The component itself and its electrical performance remain unchanged. The DO-214AA (SMB) package configuration is identical.

Q: Are both parts AEC-Q101 qualified?

A: Yes. Both P6SMB33CAHM3_A/I and P6SMB33CAHM3_B/I carry AEC-Q101 automotive qualification and are suitable for automotive telecom applications.