SMBJ14AHM3_A/I Equivalent & Substitute Parts

Part Overview

The SMBJ14AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, designed for telecom applications requiring transient overvoltage protection. This component features a 14V reverse standoff voltage with a 23.2V maximum clamping voltage and 25.9A peak pulse current capability in a surface mount 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

SMBJ14AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 764SMBJ14AHM3_A/I Datasheet

Current PartRFQ

SMBJ14AHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 787SMBJ14AHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ14AHM3_A/I is determined by strict equivalence across the following critical parameters:

• Unidirectional channel configuration (1 channel)
• Voltage - Reverse Standoff: 14V (Typ)
• Voltage - Breakdown (Min): 15.6V
• Voltage - Clamping (Max) @ Ipp: 23.2V
• Current - Peak Pulse (10/1000µs): 25.9A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA (SMB)
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Automotive Grade with AEC-Q101 Qualification
• RoHS3 Compliance

The SMBJ14AHM3_B/I is the manufacturer-recommended substitute, sharing identical electrical specifications and mechanical packaging while offering active product status and improved supply availability.

Parameter Comparison

Engineering Selection Recommendations

The SMBJ14AHM3_B/I is the direct equivalent substitute for the obsolete SMBJ14AHM3_A/I. Both components maintain identical electrical performance specifications and automotive-grade qualification with AEC-Q101 certification. The primary distinction is product status: the SMBJ14AHM3_B/I is actively manufactured and stocked, whereas the SMBJ14AHM3_A/I is obsolete.

Selection of the SMBJ14AHM3_B/I ensures compliance with current supply chain requirements while preserving all functional and environmental specifications required for telecom transient voltage suppression applications. Both parts satisfy ROHS3 compliance and operate across the identical temperature range of -55°C to 150°C (TJ).

Frequently Asked Questions (FAQ)

Q: Can the SMBJ14AHM3_B/I be used as a direct replacement for the SMBJ14AHM3_A/I?

A: Yes. The SMBJ14AHM3_B/I is electrically and mechanically identical to the SMBJ14AHM3_A/I across all specified parameters, including voltage ratings, current capacity, package type (DO-214AA/SMB), and automotive qualification. The substitute is suitable for direct board-level replacement.

Q: What is the difference between the SMBJ14AHM3_A/I and SMBJ14AHM3_B/I?

A: The primary difference is product status. The SMBJ14AHM3_A/I is obsolete, while the SMBJ14AHM3_B/I is active. The SMBJ14AHM3_B/I is supplied in Tape & Reel (TR) packaging. All electrical and mechanical specifications remain identical.

Q: Are both parts qualified for automotive applications?

A: Yes. Both the SMBJ14AHM3_A/I and SMBJ14AHM3_B/I carry Automotive Grade classification with AEC-Q101 qualification, suitable for automotive and industrial telecom applications.

Q: What package type is used for these TVS diodes?

A: Both parts use the DO-214AA (SMB) surface mount package, enabling direct PCB compatibility without design modification.

Q: Are these parts RoHS compliant?

A: Yes. Both the SMBJ14AHM3_A/I and SMBJ14AHM3_B/I are ROHS3 compliant.