SMB10J28AHM3_A/I Equivalent & Substitute Parts

Part Overview

The SMB10J28AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for telecom applications. This component features a 28V reverse standoff voltage with a 45.4V maximum clamping voltage and 22A peak pulse current capability in a surface mount DO-214AA (SMB) package. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability.

Substiute Parts

SMB10J28AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1066SMB10J28AHM3_A/I Datasheet

Current PartRFQ

SMB10J28AHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 714SMB10J28AHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMB10J28AHM3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 28V
• Voltage - Breakdown (Min): 31.1V
• Voltage - Clamping (Max) @ Ipp: 45.4V
• Current - Peak Pulse (10/1000µs): 22A
• Power - Peak Pulse: 1000W (1kW)
• Package / Case: DO-214AA, SMB
• Unidirectional Channels: 1
• Type: Zener
• Series: TransZorb®

The substitute part SMB10J28AHM3_B/I maintains identical electrical specifications and mechanical packaging, with the primary distinction being product status (Active vs. Obsolete) and packaging format (Tape & Reel vs. standard packaging).

Parameter Comparison

Engineering Selection Recommendations

The SMB10J28AHM3_B/I is the direct equivalent substitute for the obsolete SMB10J28AHM3_A/I. Both components are manufactured by Vishay General Semiconductor - Diodes Division within the TransZorb® series and share identical electrical and thermal specifications. The substitute part maintains active product status, ensuring continued availability and manufacturing support.

Both parts carry AEC-Q101 automotive qualification and ROHS3 compliance, meeting the same regulatory and environmental standards. The primary operational difference is packaging format: the substitute is supplied in Tape & Reel (TR) configuration, which is standard for high-volume production environments.

For new designs or production transitions, the SMB10J28AHM3_B/I should be selected to ensure long-term supply chain continuity and compliance with current manufacturing standards.

Frequently Asked Questions (FAQ)

Q: Can SMB10J28AHM3_B/I be used as a direct replacement for SMB10J28AHM3_A/I?

A: Yes. Both parts are electrically and mechanically identical, with matching voltage ratings (28V reverse standoff, 45.4V clamping), current specifications (22A peak pulse), and package format (DO-214AA SMB). The substitute is the manufacturer-recommended equivalent.

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

A: The primary difference is product status and packaging format. SMB10J28AHM3_A/I is obsolete, while SMB10J28AHM3_B/I is active. The substitute is supplied in Tape & Reel format, standard for production quantities.

Q: Are there any thermal or operating condition differences?

A: No. Both parts operate across the identical temperature range (-55°C to 150°C junction temperature) and maintain the same 1000W peak pulse power rating.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both SMB10J28AHM3_A/I and SMB10J28AHM3_B/I carry AEC-Q101 automotive qualification and are ROHS3 compliant.

Q: Is the DO-214AA (SMB) package identical between both parts?

A: Yes. Both components use the same surface mount DO-214AA (SMB) package, ensuring PCB layout and assembly compatibility without modification.