SMBJ43AHE3_A/I Equivalent & Substitute Parts

Part Overview

The SMBJ43AHE3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for surface mount applications in the DO-214AA (SMB) package. This component is classified as obsolete, making identification of suitable substitutes essential for ongoing design support and procurement continuity. The part operates across a wide temperature range (-55°C to 150°C) and meets automotive-grade specifications with AEC-Q101 qualification.

Substiute Parts

SMBJ43AHE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 782SMBJ43AHE3_A/I Datasheet

Current PartRFQ

SMBJ43AHE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1129SMBJ43AHE3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ43AHE3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 43V
• Voltage - Breakdown (Min): 47.8V
• Voltage - Clamping (Max) @ Ipp: 69.4V
• Current - Peak Pulse (10/1000µs): 8.6A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Unidirectional Channels: 1
• Operating Temperature Range: -55°C to 150°C (TJ)
• Grade: Automotive
• Qualification: AEC-Q101

The SMBJ43AHE3_B/I meets all these criteria and is classified as an active product from the same manufacturer, making it a direct functional equivalent suitable for replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

The SMBJ43AHE3_B/I is the direct substitute for the obsolete SMBJ43AHE3_A/I. Both parts are manufactured by Vishay and share identical electrical specifications, thermal operating range, and automotive-grade certifications. The primary distinction is product status: the SMBJ43AHE3_A/I is obsolete, while the SMBJ43AHE3_B/I is active and maintains full manufacturing support.

The SMBJ43AHE3_B/I is supplied in Tape & Reel (TR) packaging, which is standard for high-volume production environments. Both parts maintain ROHS3 compliance and AEC-Q101 automotive qualification, ensuring regulatory and quality continuity in replacement scenarios.

Frequently Asked Questions (FAQ)

Q: Can the SMBJ43AHE3_B/I be used as a direct replacement for the SMBJ43AHE3_A/I?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including voltage ratings, current handling, temperature range, and package configuration. The primary difference is product lifecycle status.

Q: What is the significance of the product status difference?

A: The SMBJ43AHE3_A/I is classified as obsolete, indicating discontinued manufacturing and limited long-term availability. The SMBJ43AHE3_B/I is active, ensuring ongoing production, technical support, and supply chain continuity.

Q: Are there packaging differences between these parts?

A: The SMBJ43AHE3_A/I packaging is not specified in the provided data. The SMBJ43AHE3_B/I is supplied in Tape & Reel (TR) format, which is standard for automated assembly processes. Both use the DO-214AA (SMB) package footprint.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the SMBJ43AHE3_A/I and SMBJ43AHE3_B/I carry AEC-Q101 automotive qualification and are classified as automotive-grade components.

Q: Are there any compliance or regulatory differences?

A: No. Both parts are ROHS3 compliant and REACH unaffected, maintaining identical regulatory status for design and procurement purposes.