SMBJ9.0AHM3_A/I Equivalent & Substitute Parts

Part Overview

The SMBJ9.0AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for telecom applications. This component features a 9V reverse standoff voltage with a 15.4V maximum clamping voltage and 39A peak pulse current capability in a surface mount DO-214AA (SMB) package. The part is currently listed as obsolete, making identification of active equivalent parts essential for ongoing procurement and design continuity.

Substiute Parts

SMBJ9.0AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1240SMBJ9.0AHM3_A/I Datasheet

Current PartRFQ

SMBJ9.0AHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1138SMBJ9.0AHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ9.0AHM3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 9V
• Voltage - Breakdown (Min): 10V
• Voltage - Clamping (Max) @ Ipp: 15.4V
• Current - Peak Pulse (10/1000µs): 39A
• Power - Peak Pulse: 600W
• Unidirectional Channels: 1
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Grade: Automotive
• Qualification: AEC-Q101

The SMBJ9.0AHM3_B/I is identified as the manufacturer-recommended substitute. This part maintains identical electrical specifications and mechanical compatibility while offering active product status and improved supply chain availability.

Parameter Comparison

Engineering Selection Recommendations

The SMBJ9.0AHM3_B/I is the direct equivalent for the obsolete SMBJ9.0AHM3_A/I. Both parts are manufactured by Vishay and maintain identical electrical and mechanical specifications. The substitute part carries active product status, ensuring long-term availability and supply chain continuity. Both parts meet automotive-grade requirements with AEC-Q101 qualification and ROHS3 compliance, making them suitable for equivalent circuit applications without design modification. The primary distinction is packaging format: the original uses bulk packaging while the substitute is supplied in Tape & Reel format, which is standard for production environments.

Frequently Asked Questions (FAQ)

Q: Can SMBJ9.0AHM3_B/I be used as a direct replacement for SMBJ9.0AHM3_A/I?

A: Yes. Both parts are electrically and mechanically identical across all critical parameters including voltage ratings, current capacity, temperature range, and package specifications. 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. SMBJ9.0AHM3_A/I is obsolete with bulk packaging, while SMBJ9.0AHM3_B/I is active with Tape & Reel packaging. Electrical performance is identical.

Q: Are both parts automotive-qualified?

A: Yes. Both SMBJ9.0AHM3_A/I and SMBJ9.0AHM3_B/I carry automotive-grade classification with AEC-Q101 qualification, meeting automotive reliability standards.

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

A: No. Packaging format does not affect electrical or thermal performance. Tape & Reel is a supply format used for automated assembly processes and does not alter component specifications.

Q: Are both parts RoHS compliant?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. No design changes are required. The substitute part maintains identical pinout, package dimensions, and electrical characteristics, allowing direct board-level substitution.