Equivalent & Substitute Parts Engineering Reference: SMBJ43AHM3_A/I

Part Overview

SMBJ43AHM3_A/I is a Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, commonly used for voltage clamping and transient protection in telecom applications. Its product status is Obsolete, which necessitates the identification and selection of compliant alternative parts. Finding alternative models is required to ensure design continuity, supply chain certainty, and ongoing qualification in automotive and industrial systems using the DO-214AA (SMB) surface mount package.

Substiute Parts

SMBJ43AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1156SMBJ43AHM3_A/I Datasheet

Current PartRFQ

SMBJ43AHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1160SMBJ43AHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part SMBJ43AHM3_B/I is included based strictly on alignment of critical electrical and mechanical parameters: unidirectional operation, voltage ratings (reverse standoff, breakdown, and clamping), peak pulse current and power, automotive grade, AEC-Q101 qualification, surface-mount capability, and identical DO-214AA (SMB) package. Only parts with matching or explicitly stated identical parameters for these categories are included as valid substitutes.

Parameter Comparison

Engineering Selection Recommendations

Selection of SMBJ43AHM3_B/I as a substitute is validated by direct parameter alignment, identical compliance statuses, automotive grade classification, and consistent AEC-Q101 qualification. The substitute maintains required RoHS and REACH environmental compliance. The product status of SMBJ43AHM3_B/I is Active, addressing the lifecycle gap of the obsolete SMBJ43AHM3_A/I.

Frequently Asked Questions (FAQ)

Q1: What criteria are used for substituting TVS diodes in this reference page?
A1: Only parts matching in critical electrical ratings, current and power handling, automotive qualification, compliance standards, mounting requirements, and package are included.

Q2: Are the SMBJ43AHM3_A/I and SMBJ43AHM3_B/I interchangeable in all applications?
A2: Yes, every parameter provided for the obsolete part matches the listed substitute, including package and qualification.

Q3: Does the substitute support the same surface mount footprint?
A3: Both SMBJ43AHM3_A/I and SMBJ43AHM3_B/I use the DO-214AA (SMB) package.

Q4: Are compliance and environmental certifications consistent between the substitute and the original?
A4: Both parts are ROHS3 Compliant and REACH Unaffected.

Q5: Is there any change in electrical, mechanical, or thermal parameters when using the substitute part?
A5: All provided electrical and mechanical parameters are strictly identical between SMBJ43AHM3_A/I and SMBJ43AHM3_B/I.