P6SMB6.8AHE3_A/I Equivalent & Substitute Parts

Part Overview

The P6SMB6.8AHE3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for transient overvoltage protection in surface mount applications. This component features a 5.8V reverse standoff voltage with a 10.5V maximum clamping voltage and 57.1A peak pulse current capability in a DO-214AA (SMB) package. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability.

Substiute Parts

P6SMB6.8AHE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 811P6SMB6.8AHE3_A/I Datasheet

Current PartRFQ

P6SMB6.8AHE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1175P6SMB6.8AHE3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6SMB6.8AHE3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 5.8V
• Voltage - Breakdown (Min): 6.45V
• Voltage - Clamping (Max) @ Ipp: 10.5V
• Current - Peak Pulse (10/1000µs): 57.1A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA (SMB)
• Unidirectional Channels: 1
• Operating Temperature Range: -65°C ~ 150°C (TJ)
• Automotive Grade and AEC-Q101 Qualification

The P6SMB6.8AHE3_B/I is identified as the manufacturer-recommended substitute. This part maintains identical electrical specifications and package configuration while differing only in product status (active versus obsolete) and packaging format (Tape & Reel versus unspecified).

Parameter Comparison

Engineering Selection Recommendations

The P6SMB6.8AHE3_B/I is the direct equivalent for the obsolete P6SMB6.8AHE3_A/I. Both parts are manufactured by Vishay and maintain identical electrical and thermal specifications. The substitute part carries active product status, ensuring ongoing availability and supply chain support. Both components meet automotive-grade requirements with AEC-Q101 qualification and ROHS3 compliance, making them suitable for equivalent circuit applications without design modification. The primary distinction is packaging format: the substitute is supplied in Tape & Reel configuration, which is standard for high-volume production environments.

Frequently Asked Questions (FAQ)

Q: Can the P6SMB6.8AHE3_B/I be used as a direct replacement for the P6SMB6.8AHE3_A/I?

A: Yes. Both parts are electrically and mechanically identical across all critical parameters including voltage ratings, peak pulse current, power dissipation, package type, and operating temperature range. The substitute is the manufacturer-recommended equivalent.

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

A: The primary differences are product status and packaging format. The P6SMB6.8AHE3_A/I is obsolete, while the P6SMB6.8AHE3_B/I is active. The substitute is supplied in Tape & Reel packaging, which is standard for automated assembly processes.

Q: Are there any compatibility concerns when switching to the substitute part?

A: No compatibility concerns exist. Both parts use the identical DO-214AA (SMB) surface mount package, have the same pinout, and are rated for the same operating temperature range (-65°C to 150°C). PCB layout and assembly processes require no modification.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the P6SMB6.8AHE3_A/I and P6SMB6.8AHE3_B/I carry automotive-grade classification with AEC-Q101 qualification, making them suitable for automotive applications.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is determined by matching the reverse standoff voltage (5.8V), breakdown voltage (6.45V minimum), clamping voltage (10.5V maximum), peak pulse current (57.1A), and peak pulse power (600W). All these parameters are identical between the main part and substitute.