SMB10J30AHM3_A/I Equivalent & Substitute Parts

Part Overview

The SMB10J30AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for telecom applications. This component features a 30V reverse standoff voltage with a 48.4V maximum clamping voltage and 20.7A peak pulse current capability in a surface mount DO-214AA (SMB) package. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability.

Substiute Parts

SMB10J30AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1124SMB10J30AHM3_A/I Datasheet

Current PartRFQ

SMB10J30AHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 749SMB10J30AHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMB10J30AHM3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 30V (±tolerance)
• Voltage - Breakdown (Min): 33.3V
• Voltage - Clamping (Max) @ Ipp: 48.4V
• Current - Peak Pulse (10/1000µs): 20.7A
• Power - Peak Pulse: 1000W
• Package / Case: DO-214AA (SMB)
• Mounting Type: Surface Mount
• Unidirectional Channels: 1
• Operating Temperature Range: -55°C ~ 150°C
• Automotive Grade and AEC-Q101 Qualification

The substitute part must maintain identical electrical performance characteristics and physical form factor to ensure direct replacement without circuit redesign or PCB modification.

Parameter Comparison

Engineering Selection Recommendations

The SMB10J30AHM3_B/I is the direct equivalent substitute for the obsolete SMB10J30AHM3_A/I. Both parts share identical electrical specifications, automotive-grade qualification, and AEC-Q101 certification. The primary distinction is product status: the main part is obsolete while the substitute is active, ensuring continued supply chain availability. The substitute is supplied in Tape & Reel packaging, which is standard for production environments. All compliance requirements, including ROHS3 and REACH status, are maintained across both part numbers.

Frequently Asked Questions (FAQ)

Q: Can SMB10J30AHM3_B/I be used as a direct replacement for SMB10J30AHM3_A/I?

A: Yes. Both parts are electrically and mechanically identical, with matching voltage ratings (30V standoff, 48.4V clamping), current ratings (20.7A peak pulse), power dissipation (1kW), package type (DO-214AA SMB), and automotive qualifications (AEC-Q101). The substitute is the active production equivalent.

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

A: The SMB10J30AHM3_A/I is obsolete, while SMB10J30AHM3_B/I is the active production version. The packaging format differs (bulk versus Tape & Reel), but electrical performance and physical form factor are identical.

Q: Are there any compatibility concerns when switching from the main part to the substitute?

A: No compatibility concerns exist. The substitute maintains the same DO-214AA (SMB) surface mount package, operating temperature range (-55°C to 150°C), and all electrical parameters. PCB layout and circuit design require no modification.

Q: Does the substitute meet automotive and compliance requirements?

A: Yes. The SMB10J30AHM3_B/I carries Automotive Grade classification and AEC-Q101 qualification, identical to the main part. Both are ROHS3 compliant and REACH unaffected.