SMBJ7.0AHM3_A/I Equivalent & Substitute Parts

Part Overview

The SMBJ7.0AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for telecom applications requiring transient overvoltage protection. This component operates with a 7V reverse standoff voltage and provides 12V maximum clamping voltage at peak pulse current, delivering 600W peak pulse power dissipation in a surface mount DO-214AA (SMB) package.

The SMBJ7.0AHM3_A/I carries an Obsolete product status. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications requiring this specific electrical and mechanical configuration.

Substiute Parts

SMBJ7.0AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1138SMBJ7.0AHM3_A/I Datasheet

Current PartRFQ

SMBJ7.0AHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 880SMBJ7.0AHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ7.0AHM3_A/I is determined by strict equivalence across the following electrical and mechanical parameters:

• Voltage - Reverse Standoff: 7V (Typ)
• Voltage - Breakdown: 7.78V (Min)
• Voltage - Clamping: 12V (Max) @ Ipp
• Current - Peak Pulse: 50A (10/1000µs)
• Power - Peak Pulse: 600W
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Unidirectional Configuration: 1 Channel
• Automotive Grade: Yes
• AEC-Q101 Qualification: Yes

The SMBJ7.0AHM3_B/I meets all these criteria and qualifies as a direct substitute. The primary distinction is packaging format (Tape & Reel versus bulk) and product status transition from Obsolete to Active.

Parameter Comparison

Engineering Selection Recommendations

The SMBJ7.0AHM3_B/I is the direct manufacturer-recommended substitute for the obsolete SMBJ7.0AHM3_A/I. Both components share identical electrical specifications and automotive-grade qualifications (AEC-Q101). The transition from Obsolete to Active product status makes SMBJ7.0AHM3_B/I the appropriate selection for new designs and ongoing production requirements.

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment. The packaging difference (Tape & Reel versus bulk) does not affect electrical or mechanical compatibility; selection depends on procurement and assembly process requirements.

Frequently Asked Questions (FAQ)

Q: Can SMBJ7.0AHM3_B/I be used as a direct replacement for SMBJ7.0AHM3_A/I?

A: Yes. Both components are identical in electrical performance, thermal characteristics, package type (DO-214AA, SMB), and automotive qualification (AEC-Q101). The substitute is manufacturer-recommended.

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

A: The primary difference is product status and packaging format. SMBJ7.0AHM3_A/I is Obsolete with bulk packaging, while SMBJ7.0AHM3_B/I is Active with Tape & Reel packaging. Electrical and mechanical specifications are identical.

Q: Are there any thermal or voltage rating differences?

A: No. Both parts operate across -55°C to 150°C (TJ), maintain 7V reverse standoff voltage, 12V clamping voltage, and 600W peak pulse power dissipation.

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

A: No. Packaging format affects only procurement and assembly logistics. Electrical and thermal performance remain unchanged.

Q: Is AEC-Q101 qualification maintained in the substitute?

A: Yes. SMBJ7.0AHM3_B/I carries full AEC-Q101 automotive qualification, identical to the original part.