P6SMB11AHM3_A/I Equivalent & Substitute Parts

Part Overview

The P6SMB11AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for telecom applications. This component features a 9.4V reverse standoff voltage with 15.6V maximum clamping voltage and 38.5A peak pulse current capability in a surface mount DO-214AA (SMB) package. The part is currently listed as obsolete, making identification of active equivalent substitutes essential for ongoing design support and procurement.

Substiute Parts

P6SMB11AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 858P6SMB11AHM3_A/I Datasheet

Current PartRFQ

P6SMB11AHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 931P6SMB11AHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6SMB11AHM3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 9.4V
• Voltage - Breakdown (Min): 10.5V
• Voltage - Clamping (Max) @ Ipp: 15.6V
• Current - Peak Pulse (10/1000µs): 38.5A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA (SMB)
• Operating Temperature Range: -65°C ~ 150°C (TJ)
• Type: Zener, Unidirectional
• Unidirectional Channels: 1

The P6SMB11AHM3_B/I is identified as the manufacturer-recommended substitute. This part maintains identical electrical specifications and thermal characteristics while differing only in packaging format (Tape & Reel versus bulk) and product status (Active versus Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The P6SMB11AHM3_B/I is the direct equivalent substitute for the obsolete P6SMB11AHM3_A/I. Both parts are manufactured by Vishay and maintain identical electrical and thermal specifications. The primary distinction is product status: the P6SMB11AHM3_B/I is currently active in production, ensuring long-term availability and supply chain continuity.

Both parts carry automotive-grade qualification (AEC-Q101) and ROHS3 compliance, meeting the same regulatory and environmental standards. The packaging difference (Tape & Reel versus bulk) does not affect electrical performance or thermal characteristics and is determined by procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can P6SMB11AHM3_B/I be used as a direct replacement for P6SMB11AHM3_A/I?

A: Yes. Both parts are electrically and thermally identical, with matching voltage ratings (9.4V standoff, 15.6V clamping), current ratings (38.5A peak pulse), power dissipation (600W), and operating temperature range (-65°C to 150°C). The P6SMB11AHM3_B/I is the active production equivalent.

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

A: The primary difference is packaging format and product status. The P6SMB11AHM3_A/I is supplied in bulk packaging and is obsolete. The P6SMB11AHM3_B/I is supplied in Tape & Reel format and is currently active. Electrical specifications are identical.

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist. Both parts use the same DO-214AA (SMB) surface mount package, identical pinout, and equivalent electrical characteristics. PCB layout and assembly processes require no modification.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the P6SMB11AHM3_A/I and P6SMB11AHM3_B/I carry AEC-Q101 automotive qualification and ROHS3 compliance status.

Q: Which part should be specified for new designs?

A: The P6SMB11AHM3_B/I should be specified for new designs due to its active production status and guaranteed long-term availability.