SMBJ11CAHM3_A/I Equivalent & Substitute Parts

Part Overview

The SMBJ11CAHM3_A/I is a bidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the DO-214AA (SMB) package and is designed for telecom applications requiring transient voltage protection. The part is classified as obsolete, making identification of active equivalent components essential for ongoing design support and procurement continuity.

Substiute Parts

SMBJ11CAHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 645SMBJ11CAHM3_A/I Datasheet

Current PartRFQ

SMBJ11CAHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 674SMBJ11CAHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ11CAHM3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 11V
• Voltage - Breakdown (Min): 12.2V
• Voltage - Clamping (Max) @ Ipp: 18.2V
• Current - Peak Pulse (10/1000µs): 33A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Bidirectional Channels: 1
• Type: Zener
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Grade: Automotive
• Qualification: AEC-Q101

The SMBJ11CAHM3_B/I is the manufacturer-recommended substitute, maintaining identical electrical specifications and mechanical compatibility while offering active product status and improved supply availability.

Parameter Comparison

Engineering Selection Recommendations

The SMBJ11CAHM3_B/I is the direct equivalent for the obsolete SMBJ11CAHM3_A/I. Both components are manufactured by Vishay and maintain identical electrical and mechanical specifications. The primary distinction is product status: the SMBJ11CAHM3_A/I is obsolete, while the SMBJ11CAHM3_B/I is active and maintains current manufacturing support.

Both parts carry automotive-grade qualification (AEC-Q101) and ROHS3 compliance, ensuring suitability for regulated applications. The SMBJ11CAHM3_B/I is available in Tape & Reel packaging, supporting high-volume production workflows. Selection of the active substitute ensures long-term supply chain stability and access to manufacturer technical support.

Frequently Asked Questions (FAQ)

Q: Can the SMBJ11CAHM3_B/I be used as a direct replacement for the SMBJ11CAHM3_A/I?

A: Yes. Both components share identical electrical parameters (11V standoff voltage, 18.2V clamping voltage, 33A peak pulse current, 600W peak power), operate across the same temperature range (-55°C to 150°C), and use the same DO-214AA (SMB) package. The SMBJ11CAHM3_B/I is the manufacturer-recommended substitute.

Q: What is the difference between the SMBJ11CAHM3_A/I and SMBJ11CAHM3_B/I?

A: The primary difference is product status. The SMBJ11CAHM3_A/I is obsolete, while the SMBJ11CAHM3_B/I is active. The suffix designation (_A/I versus _B/I) indicates a manufacturing revision. Electrical and mechanical specifications remain identical.

Q: Are both parts suitable for automotive applications?

A: Yes. Both the SMBJ11CAHM3_A/I and SMBJ11CAHM3_B/I carry automotive-grade classification and AEC-Q101 qualification, meeting automotive industry reliability and quality standards.

Q: What packaging options are available?

A: The SMBJ11CAHM3_A/I is available in standard packaging. The SMBJ11CAHM3_B/I is available in Tape & Reel (TR) packaging, which is optimized for automated assembly and high-volume production.

Q: Are there any compliance or regulatory differences?

A: No. Both components are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.