SMBJ6.5AHM3_A/I Equivalent & Substitute Parts

Part Overview

The SMBJ6.5AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, part of the TransZorb® series. This surface mount component is designed for telecom applications requiring transient voltage protection. The part is currently listed as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and procurement.

Substiute Parts

SMBJ6.5AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1184SMBJ6.5AHM3_A/I Datasheet

Current PartRFQ

SMBJ6.5AHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 905SMBJ6.5AHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ6.5AHM3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 6.5V
• Voltage - Breakdown (Min): 7.22V
• Voltage - Clamping (Max) @ Ipp: 11.2V
• Current - Peak Pulse (10/1000µs): 53.6A
• Power - Peak Pulse: 600W
• Unidirectional Channels: 1
• Package / Case: DO-214AA, SMB
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Automotive Grade and AEC-Q101 Qualification

The SMBJ6.5AHM3_B/I is identified as the manufacturer-recommended substitute. This part maintains identical electrical specifications and thermal performance while differing only in packaging format (Tape & Reel) and product status (Active vs. Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The SMBJ6.5AHM3_B/I is the direct equivalent for the obsolete SMBJ6.5AHM3_A/I. Both parts maintain identical electrical performance, thermal characteristics, and automotive-grade compliance (AEC-Q101). The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

Selection between these parts should be based on packaging requirements. The SMBJ6.5AHM3_B/I is supplied in Tape & Reel format, which is standard for high-volume manufacturing and automated assembly processes. Both parts are ROHS3 compliant and carry unlimited moisture sensitivity level (MSL 1), indicating no special storage or handling requirements.

Frequently Asked Questions (FAQ)

Q: Can SMBJ6.5AHM3_B/I be used as a direct replacement for SMBJ6.5AHM3_A/I?

A: Yes. Both parts are electrically and mechanically identical. They share the same voltage ratings (6.5V reverse standoff, 11.2V clamping), current handling (53.6A peak pulse), power dissipation (600W), package type (DO-214AA SMB), and thermal operating range (-55°C to 150°C). The only difference is packaging format and product status.

Q: What is the significance of the product status difference (Obsolete vs. Active)?

A: The SMBJ6.5AHM3_A/I is obsolete and no longer manufactured. The SMBJ6.5AHM3_B/I is the active production equivalent, ensuring continued availability for new designs and ongoing procurement needs.

Q: Are there any thermal or electrical performance differences between these parts?

A: No. Both parts operate within identical specifications for voltage suppression, peak pulse current, power dissipation, and temperature range. Thermal performance is equivalent.

Q: What does the packaging format difference mean for assembly?

A: The SMBJ6.5AHM3_A/I uses standard packaging, while the SMBJ6.5AHM3_B/I is supplied in Tape & Reel format. Tape & Reel packaging is optimized for automated pick-and-place assembly and high-volume production. Both formats contain the same component in the DO-214AA SMB package.

Q: Are both parts automotive-grade qualified?

A: Yes. Both parts carry Automotive Grade designation and AEC-Q101 qualification, meeting automotive industry reliability and quality standards.

Q: Do these parts require special handling or storage?

A: No. Both parts have Moisture Sensitivity Level (MSL) 1, which indicates unlimited shelf life and no special moisture control or baking requirements during storage or handling.