SMBJ64AHM3_A/I Equivalent & Substitute Parts

Part Overview

The SMBJ64AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for telecom applications. This component features a 64V reverse standoff voltage with 103V maximum clamping voltage and 5.8A peak pulse current capability in a surface mount DO-214AA (SMB) package. The part is currently classified as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement.

Substiute Parts

SMBJ64AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1014SMBJ64AHM3_A/I Datasheet

Current PartRFQ

SMBJ64AHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1041SMBJ64AHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ64AHM3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 64V (±5% tolerance)
• Voltage - Breakdown (Min): 71.1V
• Voltage - Clamping (Max) @ Ipp: 103V
• Current - Peak Pulse (10/1000µs): 5.8A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA (SMB)
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Unidirectional Configuration: 1 channel
• Automotive Grade: AEC-Q101 qualified
• RoHS Compliance: ROHS3 Compliant

The SMBJ64AHM3_B/I is classified as a manufacturer-recommended substitute because it maintains identical electrical specifications and mechanical compatibility while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The SMBJ64AHM3_B/I is the direct equivalent for the obsolete SMBJ64AHM3_A/I. Both components are manufactured by Vishay and maintain identical electrical and mechanical specifications. The primary distinction is product status: the SMBJ64AHM3_B/I carries active status with confirmed inventory availability, whereas the SMBJ64AHM3_A/I is obsolete.

Both parts satisfy automotive-grade requirements with AEC-Q101 qualification and ROHS3 compliance, ensuring compatibility with regulated applications. The SMBJ64AHM3_B/I is supplied in Tape & Reel (TR) packaging, which is standard for high-volume production environments.

For new designs or component replenishment, the SMBJ64AHM3_B/I is the appropriate selection. For existing inventory management of the SMBJ64AHM3_A/I, direct substitution with the SMBJ64AHM3_B/I is electrically and mechanically valid.

Frequently Asked Questions (FAQ)

Q: Can SMBJ64AHM3_B/I be used as a direct replacement for SMBJ64AHM3_A/I?

A: Yes. Both components are identical in electrical performance and mechanical form factor. The SMBJ64AHM3_B/I is the active equivalent with current manufacturing support.

Q: What is the difference between the two part numbers?

A: The primary difference is product lifecycle status. SMBJ64AHM3_A/I is obsolete, while SMBJ64AHM3_B/I is active. Electrical specifications, package type (DO-214AA/SMB), and automotive qualifications are identical.

Q: Are there any packaging differences?

A: The SMBJ64AHM3_B/I is supplied in Tape & Reel (TR) packaging. The original part number does not specify packaging format. Both use the same DO-214AA (SMB) component package.

Q: Does the substitute maintain automotive compliance?

A: Yes. The SMBJ64AHM3_B/I is AEC-Q101 qualified and ROHS3 compliant, matching the automotive-grade requirements of the original part.

Q: What are the critical parameters for substitution?

A: Substitution is valid when the following parameters match: 64V reverse standoff voltage, 71.1V minimum breakdown voltage, 103V maximum clamping voltage, 5.8A peak pulse current, 600W peak pulse power, DO-214AA package, -55°C to 150°C operating temperature, and automotive AEC-Q101 qualification.