SMCJ6.5AHM3/I Equivalent & Substitute Parts

Part Overview

The SMCJ6.5AHM3/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 with a 6.5V reverse standoff voltage and 11.2V maximum clamping voltage. The part is currently discontinued at DiGi Electronics, making identification of equivalent alternatives essential for ongoing design support and procurement.

Substiute Parts

SMCJ6.5AHM3/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1098SMCJ6.5AHM3/I Datasheet

Current PartRFQ

SMCJ6.5AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 876SMCJ6.5AHM3_A/I Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SMCJ6.5AHM3/I is determined by strict equivalence across the following critical parameters:

• Voltage rating: Reverse standoff voltage of 6.5V, breakdown minimum of 7.22V, and clamping voltage maximum of 11.2V
• Peak pulse current: 133.9A at 10/1000µs pulse width
• Peak pulse power: 1500W
• Package: DO-214AB (SMC) surface mount form factor
• Unidirectional topology: Single channel Zener TVS diode
• Automotive grade with AEC-Q101 qualification
• Operating temperature range: -55°C to 150°C

The substitute part SMCJ6.5AHM3_A/I meets all these criteria and is manufactured by the same supplier, ensuring functional and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The SMCJ6.5AHM3_A/I is a direct functional equivalent to the SMCJ6.5AHM3/I. Both parts share identical electrical specifications, automotive qualification (AEC-Q101), and compliance certifications (ROHS3, REACH Unaffected). The primary distinction is product status: the original part is discontinued, while the substitute remains in active production with current inventory availability.

The substitute part is supplied in Tape & Reel (TR) packaging, which is standard for high-volume surface mount assembly. Both parts maintain the same DO-214AB (SMC) package footprint and thermal characteristics, ensuring direct PCB compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Can SMCJ6.5AHM3_A/I be used as a direct replacement for SMCJ6.5AHM3/I?

A: Yes. Both parts are identical in electrical performance, voltage ratings, peak pulse current, thermal range, and package form factor. The substitute is manufactured by the same supplier and carries the same automotive qualification.

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

A: The primary difference is packaging format and product status. SMCJ6.5AHM3/I is discontinued, while SMCJ6.5AHM3_A/I is active production with Tape & Reel packaging. Electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns with PCB assembly?

A: No. Both parts use the DO-214AB (SMC) surface mount package with identical footprints. No PCB layout or assembly process changes are required.

Q: Does the Tape & Reel packaging affect component performance?

A: No. Tape & Reel is a standard packaging format for surface mount components and does not affect electrical performance, reliability, or thermal characteristics.

Q: Are both parts compliant with automotive standards?

A: Yes. Both SMCJ6.5AHM3/I and SMCJ6.5AHM3_A/I carry AEC-Q101 qualification and are ROHS3 compliant, meeting automotive industry requirements.