SMB10J18AHE3_A/I Equivalent & Substitute Parts

Part Overview

The SMB10J18AHE3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, part of the TransZorb® series. This component is designed for transient overvoltage protection in surface mount applications using the DO-214AA (SMB) package. The part is currently listed as obsolete, making identification of suitable substitutes essential for ongoing design support and procurement.

Substiute Parts

SMB10J18AHE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 772SMB10J18AHE3_A/I Datasheet

Current PartRFQ

SMB10J18AHE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 863SMB10J18AHE3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMB10J18AHE3_A/I is determined by strict equivalence across the following critical parameters:

• Unidirectional channel configuration (1 channel)
• Voltage ratings: Reverse standoff 18V, breakdown minimum 20V, clamping maximum 29.2V @ Ipp
• Peak pulse current capability: 34.2A (10/1000µs)
• Peak pulse power dissipation: 1000W
• Package type: DO-214AA (SMB) surface mount
• Operating temperature range: -55°C to 150°C
• Automotive grade with AEC-Q101 qualification
• RoHS3 compliance

The substitute part SMB10J18AHE3_B/I maintains identical electrical and mechanical specifications while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The SMB10J18AHE3_B/I is the direct substitute for the obsolete SMB10J18AHE3_A/I. Both parts are manufactured by Vishay and maintain identical electrical performance specifications. The substitute part carries active product status, ensuring long-term availability and supply chain continuity. Both components meet automotive-grade requirements with AEC-Q101 qualification and ROHS3 compliance, making them suitable for regulated applications. The primary distinction is packaging format: the substitute is supplied in Tape & Reel configuration, which is standard for production environments.

Frequently Asked Questions (FAQ)

Q: Can SMB10J18AHE3_B/I be used as a direct replacement for SMB10J18AHE3_A/I?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. The substitute maintains the same voltage ratings, current handling, package type, and thermal characteristics.

Q: What is the difference between the A/I and B/I variants?

A: The primary difference is product status and packaging. The A/I variant is obsolete with bulk packaging, while the B/I variant is active with Tape & Reel packaging. Electrical specifications are identical.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the SMB10J18AHE3_A/I and SMB10J18AHE3_B/I carry automotive grade classification with AEC-Q101 qualification, meeting automotive industry standards.

Q: What does the DO-214AA (SMB) package specification mean?

A: DO-214AA is the industry standard package designation for surface mount diodes in the SMB (Small Outline) form factor. Both parts use this identical package, ensuring mechanical compatibility on PCBs.

Q: Are there any compliance differences between the two parts?

A: No. Both parts are ROHS3 compliant and REACH unaffected, with identical environmental and regulatory compliance status.

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

A: Both parts operate across -55°C to 150°C junction temperature, suitable for automotive and industrial environments.