SMBJ150CAHM3_A/I Equivalent & Substitute Parts

Part Overview

The SMBJ150CAHM3_A/I is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, designed for telecom applications requiring transient protection. This component features a 150V reverse standoff voltage with a 243V maximum clamping voltage and 2.5A 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

SMBJ150CAHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1113SMBJ150CAHM3_A/I Datasheet

Current PartRFQ

SMBJ150CAHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 780SMBJ150CAHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ150CAHM3_A/I is determined by electrical and mechanical parameter equivalence within the TVS diode category. The critical parameters defining substitutability are:

• Voltage - Reverse Standoff (Typ): 150V
• Voltage - Breakdown (Min): 167V
• Voltage - Clamping (Max) @ Ipp: 243V
• Current - Peak Pulse (10/1000µs): 2.5A
• Power - Peak Pulse: 600W
• Bidirectional Channels: 1
• Package / Case: DO-214AA, SMB
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Automotive Grade: AEC-Q101 Qualified
• RoHS Status: ROHS3 Compliant

The SMBJ150CAHM3_B/I is identified as the manufacturer-recommended substitute, sharing identical electrical specifications and mechanical packaging while offering active product status and improved supply availability.

Parameter Comparison

Engineering Selection Recommendations

The SMBJ150CAHM3_B/I is the direct equivalent substitute for the SMBJ150CAHM3_A/I. Both components are manufactured by Vishay General Semiconductor - Diodes Division within the TransZorb® series and maintain identical electrical and mechanical specifications. The substitute part carries active product status, ensuring continued availability and manufacturing support. Both parts maintain AEC-Q101 automotive qualification, ROHS3 compliance, and REACH unaffected status, satisfying regulatory and quality requirements for automotive and telecom applications. The packaging format remains DO-214AA (SMB) surface mount, enabling direct PCB layout compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Can SMBJ150CAHM3_B/I be used as a direct replacement for SMBJ150CAHM3_A/I?

A: Yes. Both parts share identical electrical parameters (150V reverse standoff, 243V clamping voltage, 2.5A peak pulse current, 600W peak power), identical operating temperature range (-55°C to 150°C), identical package format (DO-214AA/SMB), and identical automotive qualifications (AEC-Q101). No circuit design changes are required.

Q: What is the difference between SMBJ150CAHM3_A/I and SMBJ150CAHM3_B/I?

A: The primary difference is product status. SMBJ150CAHM3_A/I is classified as obsolete, while SMBJ150CAHM3_B/I is active. The packaging differs: SMBJ150CAHM3_A/I uses standard packaging, while SMBJ150CAHM3_B/I is supplied in Tape & Reel (TR) format. All electrical and mechanical specifications remain identical.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain identical compliance status: ROHS3 compliant, REACH unaffected, AEC-Q101 automotive qualified, and EAR99 export classification. Regulatory requirements are satisfied by either part.

Q: Is PCB layout modification necessary when substituting SMBJ150CAHM3_B/I?

A: No. Both parts use the DO-214AA (SMB) surface mount package with identical pin configuration and footprint. PCB layout remains unchanged.

Q: Why is SMBJ150CAHM3_A/I marked as obsolete?

A: Product obsolescence reflects manufacturing lifecycle decisions by Vishay General Semiconductor - Diodes Division. The SMBJ150CAHM3_B/I serves as the active continuation of this product line, maintaining full electrical and mechanical compatibility.