SMBJ16CAHM3_A/I Equivalent & Substitute Parts

Part Overview

The SMBJ16CAHM3_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 16V reverse standoff voltage with a 26V maximum clamping voltage and 23.1A 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

SMBJ16CAHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1059SMBJ16CAHM3_A/I Datasheet

Current PartRFQ

SMBJ16CAHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 805SMBJ16CAHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ16CAHM3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 16V
• Voltage - Breakdown (Min): 17.8V
• Voltage - Clamping (Max) @ Ipp: 26V
• Current - Peak Pulse (10/1000µs): 23.1A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA (SMB)
• Bidirectional Channels: 1
• Operating Temperature Range: -55°C to 150°C (TJ)
• Type: Zener
• Series: TransZorb®
• Grade: Automotive
• Qualification: AEC-Q101
• RoHS Status: ROHS3 Compliant

The SMBJ16CAHM3_B/I is identified as the manufacturer-recommended substitute. Both parts share identical electrical specifications, thermal performance, package configuration, and compliance certifications. The primary distinction is product status: the original part is obsolete, while the substitute is active in production.

Parameter Comparison

Engineering Selection Recommendations

The SMBJ16CAHM3_B/I is the direct equivalent for the obsolete SMBJ16CAHM3_A/I. Selection of the substitute is based on:

• Identical electrical performance across all voltage and current parameters
• Matching thermal operating range and power dissipation capability
• Identical package footprint and pinout (DO-214AA SMB)
• Equivalent automotive-grade qualification (AEC-Q101)
• Matching RoHS3 compliance status
• Active production status ensuring supply chain continuity

The substitute part is suitable for direct replacement in all applications where the original part was specified. No circuit redesign or layout modification is required.

Frequently Asked Questions (FAQ)

Q: Can SMBJ16CAHM3_B/I be used as a direct replacement for SMBJ16CAHM3_A/I?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. The substitute is the manufacturer-recommended replacement for the obsolete original part.

Q: Are there differences in packaging between the two parts?

A: The original part is supplied in bulk packaging, while the substitute is supplied in Tape & Reel (TR) format. Both use the same DO-214AA (SMB) package footprint and are compatible with standard surface mount assembly processes.

Q: Does the substitute part meet the same compliance requirements?

A: Yes. The SMBJ16CAHM3_B/I maintains identical automotive-grade classification, AEC-Q101 qualification, and ROHS3 compliance status as the original part.

Q: What is the primary reason for substitution?

A: The original SMBJ16CAHM3_A/I is classified as obsolete. The SMBJ16CAHM3_B/I is the active production equivalent, ensuring continued availability and supply chain reliability.

Q: Are there any thermal or electrical performance differences?

A: No. Both parts operate across the same temperature range (-55°C to 150°C TJ) and deliver identical voltage clamping, peak pulse current, and power dissipation characteristics.