SMBJ36AHE3_A/I Equivalent & Substitute Parts

Part Overview

The SMBJ36AHE3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, designed for surface mount applications in the DO-214AA (SMB) package. This component provides transient overvoltage protection with a 36V reverse standoff voltage and 58.1V maximum clamping voltage at peak pulse current of 10.3A. The part is currently listed as obsolete, making identification of equivalent alternatives necessary for ongoing design support and procurement.

Substiute Parts

SMBJ36AHE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 765SMBJ36AHE3_A/I Datasheet

Current PartRFQ

SMBJ36AHE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 972SMBJ36AHE3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ36AHE3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 36V (±tolerance)
• Voltage - Clamping (Max) @ Ipp: 58.1V
• Current - Peak Pulse (10/1000µs): 10.3A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Grade: Automotive
• Qualification: AEC-Q101

The SMBJ36AHE3_B/I variant meets all electrical and mechanical requirements for direct substitution. Both parts share identical base product designation (SMBJ36), electrical specifications, and automotive-grade qualification. The primary distinction is product status: the substitute is currently active in production, whereas the original part is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The SMBJ36AHE3_B/I is the direct equivalent for the obsolete SMBJ36AHE3_A/I. Both parts maintain identical electrical performance specifications and automotive-grade compliance. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity. Both components carry AEC-Q101 automotive qualification and ROHS3 compliance, meeting regulatory requirements for automotive and industrial applications. Selection of the active substitute part eliminates obsolescence risk while maintaining full functional and mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can SMBJ36AHE3_B/I be used as a direct replacement for SMBJ36AHE3_A/I?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters: 36V reverse standoff voltage, 58.1V clamping voltage, 10.3A peak pulse current, 600W peak pulse power, DO-214AA SMB package, and automotive AEC-Q101 qualification. The substitute is the manufacturer-recommended equivalent.

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

A: The SMBJ36AHE3_A/I is obsolete, while SMBJ36AHE3_B/I is active in production. No electrical or mechanical differences exist between the variants. The suffix change reflects manufacturing revision or production batch designation.

Q: Are there any package or mounting differences?

A: No. Both parts use the DO-214AA (SMB) surface mount package with identical footprint and mounting requirements. PCB layout and assembly processes require no modification.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both SMBJ36AHE3_A/I and SMBJ36AHE3_B/I carry AEC-Q101 automotive qualification and are ROHS3 compliant, meeting automotive and industrial regulatory requirements.

Q: What is the operating temperature range for these parts?

A: Both parts operate across -55°C to 150°C junction temperature (TJ), suitable for automotive and industrial environments with extended temperature requirements.