SMBJ58AHM3_A/I Equivalent & Substitute Parts

Part Overview

The SMBJ58AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, designed for telecom applications. This component features a 58V reverse standoff voltage with a 93.6V maximum clamping voltage and 6.4A peak pulse current capability in a surface mount DO-214AA (SMB) package. The part is currently listed as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement.

Substiute Parts

SMBJ58AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 907SMBJ58AHM3_A/I Datasheet

Current PartRFQ

SMBJ58AHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1003SMBJ58AHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ58AHM3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 58V (±5% tolerance)
• Voltage - Breakdown (Min): 64.4V
• Voltage - Clamping (Max) @ Ipp: 93.6V
• Current - Peak Pulse (10/1000µs): 6.4A
• Power - Peak Pulse: 600W
• Unidirectional channel configuration: 1 channel
• Package / Case: DO-214AA (SMB)
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C to 150°C (TJ)
• Automotive Grade and AEC-Q101 Qualification

The SMBJ58AHM3_B/I is classified as a manufacturer-recommended substitute because it maintains identical electrical specifications and mechanical compatibility while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The SMBJ58AHM3_B/I is the direct equivalent for the obsolete SMBJ58AHM3_A/I. Both components are manufactured by Vishay General Semiconductor - Diodes Division and maintain identical electrical and mechanical specifications. The primary distinction is product status: the SMBJ58AHM3_A/I is obsolete, while the SMBJ58AHM3_B/I carries active status with higher current inventory availability (972 pcs vs. 804 pcs).

Both parts satisfy automotive-grade requirements with AEC-Q101 qualification and comply with ROHS3 and REACH regulations. The SMBJ58AHM3_B/I is supplied in Tape & Reel (TR) packaging, which is standard for high-volume production environments, whereas the main part is supplied in bulk packaging.

For new designs or ongoing production requiring the SMBJ58AHM3_A/I, the SMBJ58AHM3_B/I provides full functional and mechanical compatibility with improved supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the SMBJ58AHM3_B/I be used as a direct replacement for the SMBJ58AHM3_A/I?

A: Yes. Both parts are electrically and mechanically identical, with matching voltage ratings (58V reverse standoff, 93.6V clamping), current specifications (6.4A peak pulse), power dissipation (600W), operating temperature range (-55°C to 150°C), and package configuration (DO-214AA SMB surface mount). The SMBJ58AHM3_B/I is the active equivalent.

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

A: The primary difference is product lifecycle status. The SMBJ58AHM3_A/I is obsolete, while the SMBJ58AHM3_B/I is active. Secondary differences include packaging format (bulk vs. Tape & Reel) and inventory availability. All electrical and mechanical parameters are identical.

Q: Are there any compatibility concerns with PCB assembly?

A: No. Both parts use the same DO-214AA (SMB) surface mount package with identical footprint and soldering requirements. Assembly processes, reflow profiles, and handling procedures remain unchanged.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the SMBJ58AHM3_A/I and SMBJ58AHM3_B/I carry automotive grade classification and AEC-Q101 qualification, meeting the same reliability and quality standards.

Q: What is the significance of the Tape & Reel packaging for the SMBJ58AHM3_B/I?

A: Tape & Reel (TR) packaging is standard for automated high-volume production environments, enabling efficient pick-and-place assembly. The bulk packaging of the main part is typically used for lower-volume or manual assembly scenarios. Both packaging formats contain identical components.