SMBJ26AHM3_A/I Equivalent & Substitute Parts

Part Overview

The SMBJ26AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, designed for telecom applications requiring transient overvoltage protection. This part operates with a 26V reverse standoff voltage and provides 600W peak pulse power dissipation in a surface mount DO-214AA (SMB) package. The SMBJ26AHM3_A/I carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

SMBJ26AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 663SMBJ26AHM3_A/I Datasheet

Current PartRFQ

SMBJ26AHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1212SMBJ26AHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMBJ26AHM3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 26V
• Voltage - Breakdown (Min): 28.9V
• Voltage - Clamping (Max) @ Ipp: 42.1V
• Current - Peak Pulse (10/1000µs): 14.3A
• Power - Peak Pulse: 600W
• Type: Zener (Unidirectional)
• Package / Case: DO-214AA, SMB
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Grade: Automotive
• Qualification: AEC-Q101

The SMBJ26AHM3_B/I is identified as a manufacturer-recommended substitute. This part maintains identical electrical performance specifications and mechanical compatibility while differing only in packaging format (Tape & Reel) and product status (Active vs. Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The SMBJ26AHM3_B/I is the direct substitute for the SMBJ26AHM3_A/I. Both parts are manufactured by Vishay and share identical electrical and mechanical specifications. The primary distinction is product lifecycle status: the SMBJ26AHM3_A/I is Obsolete, while the SMBJ26AHM3_B/I maintains Active status with higher inventory availability (1122 pcs vs. 642 pcs).

Both parts maintain Automotive grade qualification and AEC-Q101 certification, ensuring compliance with automotive reliability standards. Both are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

For new designs and production continuity, the SMBJ26AHM3_B/I is the appropriate selection due to its Active product status and superior supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can SMBJ26AHM3_B/I be used as a direct replacement for SMBJ26AHM3_A/I?

A: Yes. Both parts are electrically and mechanically identical. They share the same voltage ratings (26V standoff, 28.9V breakdown, 42.1V clamping), current handling (14.3A peak pulse), power dissipation (600W), package type (DO-214AA SMB), and operating temperature range (-55°C to 150°C). The SMBJ26AHM3_B/I is the manufacturer-recommended substitute.

Q: What is the difference between SMBJ26AHM3_A/I and SMBJ26AHM3_B/I?

A: The primary difference is packaging format and product status. The SMBJ26AHM3_A/I is supplied in standard packaging and carries Obsolete status. The SMBJ26AHM3_B/I is supplied in Tape & Reel format and maintains Active product status with higher inventory levels.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the SMBJ26AHM3_A/I and SMBJ26AHM3_B/I carry Automotive grade classification and AEC-Q101 qualification, meeting automotive reliability and quality standards.

Q: Do these parts meet current environmental compliance standards?

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

Q: What is the operating temperature range for these TVS diodes?

A: Both parts operate across a junction temperature range of -55°C to 150°C (TJ), suitable for demanding telecom and automotive environments.