SMBJ13AHM3_A/I Equivalent & Substitute Parts

Part Overview

The SMBJ13AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for telecom applications requiring transient voltage protection in surface mount configurations. The part operates with a 13V reverse standoff voltage and provides 600W peak pulse power dissipation in a DO-214AA (SMB) package.

The SMBJ13AHM3_A/I is classified as obsolete. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications currently utilizing this component.

Substiute Parts

SMBJ13AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 879SMBJ13AHM3_A/I Datasheet

Current PartRFQ

SMBJ13AHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 962SMBJ13AHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMBJ13AHM3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 13V (±tolerance)
• Voltage - Breakdown (Min): 14.4V
• Voltage - Clamping (Max) @ Ipp: 21.5V
• Current - Peak Pulse (10/1000µs): 27.9A
• Power - Peak Pulse: 600W
• Unidirectional Channels: 1
• Package / Case: DO-214AA, SMB
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Grade: Automotive
• Qualification: AEC-Q101

The SMBJ13AHM3_B/I meets all electrical and mechanical requirements for direct substitution. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The SMBJ13AHM3_B/I is the direct equivalent substitute for the SMBJ13AHM3_A/I. Both components share identical electrical specifications, thermal operating range, automotive grade classification, and AEC-Q101 qualification. The substitute part maintains ROHS3 compliance and REACH unaffected status.

The primary advantage of the SMBJ13AHM3_B/I is active product status, ensuring continued availability and manufacturing support. The packaging format difference (Tape & Reel versus bulk) does not affect electrical performance or functional compatibility in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the SMBJ13AHM3_B/I be used as a direct replacement for the SMBJ13AHM3_A/I?

A: Yes. Both parts are electrically and mechanically identical across all critical parameters: 13V reverse standoff voltage, 21.5V clamping voltage, 27.9A peak pulse current, 600W peak pulse power, DO-214AA package, and automotive AEC-Q101 qualification.

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

A: The SMBJ13AHM3_A/I is obsolete, while the SMBJ13AHM3_B/I is active. The packaging format differs: the A/I variant is supplied in bulk, while the B/I variant is supplied in Tape & Reel format. Electrical performance is identical.

Q: Are there any compatibility concerns when substituting the B/I variant?

A: No compatibility concerns exist. The DO-214AA (SMB) package footprint is identical for both variants. Electrical characteristics, thermal performance, and compliance certifications are equivalent.

Q: Does the Tape & Reel packaging affect circuit performance?

A: No. Packaging format is a supply and handling consideration only. Once soldered to the PCB, the component performance is identical regardless of original packaging format.

Q: Are both parts automotive qualified?

A: Yes. Both the SMBJ13AHM3_A/I and SMBJ13AHM3_B/I carry automotive grade classification and AEC-Q101 qualification, meeting automotive reliability and quality standards.