SMBJ13AHM3_A/H Equivalent & Substitute Parts

Part Overview

The SMBJ13AHM3_A/H is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, part of the TransZorb® series. This surface mount component is designed for transient voltage protection in telecom applications, featuring a 13V reverse standoff voltage and 21.5V maximum clamping voltage at peak pulse current.

The SMBJ13AHM3_A/H carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this component.

Substiute Parts

SMBJ13AHM3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 845SMBJ13AHM3_A/H Datasheet

Current PartRFQ

SMBJ13AHM3_B/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 881SMBJ13AHM3_B/H Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMBJ13AHM3_A/H 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
• Package / Case: DO-214AA, SMB
• Type: Unidirectional Zener
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Automotive Grade with AEC-Q101 Qualification
• RoHS3 Compliance

The SMBJ13AHM3_B/H meets all substitution criteria as a direct equivalent, differing only in product status (Active vs. Obsolete) and packaging format (Bulk vs. standard).

Parameter Comparison

Engineering Selection Recommendations

The SMBJ13AHM3_B/H is the direct substitute for the SMBJ13AHM3_A/H. Both components are manufactured by Vishay General Semiconductor - Diodes Division and share identical electrical and mechanical specifications. The primary distinction is product status: the SMBJ13AHM3_A/H is Obsolete, while the SMBJ13AHM3_B/H maintains Active status.

Both parts carry Automotive Grade classification with AEC-Q101 qualification, ensuring compliance with automotive reliability standards. Both are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

For new designs or ongoing production requiring TVS diode protection in the 13V standoff range with 600W peak pulse power capability, the SMBJ13AHM3_B/H is the appropriate selection due to its Active product status and continued manufacturer support.

Frequently Asked Questions (FAQ)

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

A: Yes. Both components are electrically and mechanically identical, with matching voltage ratings (13V standoff, 21.5V clamping), current ratings (27.9A peak pulse), power dissipation (600W), and package specifications (DO-214AA, SMB). The SMBJ13AHM3_B/H is the recommended substitute due to its Active product status.

Q: What are the critical parameters that define substitution eligibility?

A: Substitution is determined by equivalence in: Voltage - Reverse Standoff (13V), Voltage - Breakdown (14.4V minimum), Voltage - Clamping (21.5V maximum), Current - Peak Pulse (27.9A), Power - Peak Pulse (600W), package type (DO-214AA, SMB), operating temperature range (-55°C to 150°C), and automotive qualification (AEC-Q101).

Q: Are there any compliance or certification differences between these parts?

A: No. Both the SMBJ13AHM3_A/H and SMBJ13AHM3_B/H carry identical certifications: Automotive Grade, AEC-Q101 qualification, ROHS3 compliance, and REACH Unaffected status.

Q: Why is the SMBJ13AHM3_A/H marked as Obsolete?

A: Product status reflects manufacturer lifecycle decisions. The Obsolete designation indicates that the SMBJ13AHM3_A/H is no longer in active production. The SMBJ13AHM3_B/H remains Active and is the current production equivalent.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. Both components use identical surface mount packaging (DO-214AA, SMB) and are compatible with standard PCB assembly processes. No design modifications are required when substituting the SMBJ13AHM3_B/H for the SMBJ13AHM3_A/H.