SM6T30CAHM3_A/H Equivalent & Substitute Parts

Part Overview

The SM6T30CAHM3_A/H is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, designed for transient overvoltage protection in surface mount applications. This component operates with a 25.6V reverse standoff voltage and provides 41.5V clamping at peak pulse current, delivering 600W peak pulse power dissipation in a DO-214AA (SMB) package format.

The SM6T30CAHM3_A/H carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this TVS diode specification.

Substiute Parts

SM6T30CAHM3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 7136SM6T30CAHM3_A/H Datasheet

Current PartRFQ

SM6T30CAHM3_B/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 1130SM6T30CAHM3_B/H Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SM6T30CAHM3_A/H is determined by strict equivalence across the following electrical and mechanical parameters:

Voltage specifications must match exactly: Reverse Standoff Voltage of 25.6V (Typ), Breakdown Voltage minimum of 28.5V, and Clamping Voltage maximum of 41.5V at peak pulse current. Current handling capability must equal 14.5A peak pulse (10/1000µs). Power dissipation capacity must be 600W peak pulse. The package format must remain DO-214AA (SMB) for mechanical and thermal compatibility. Bidirectional channel configuration must be maintained at 1 channel. Operating temperature range must span -65°C to 150°C (TJ). Automotive grade classification and AEC-Q101 qualification are required for applications demanding automotive-level reliability.

The substitute part SM6T30CAHM3_B/H meets all these criteria while maintaining identical electrical performance and package specifications.

Parameter Comparison

Engineering Selection Recommendations

The SM6T30CAHM3_B/H is the direct functional equivalent of the SM6T30CAHM3_A/H. Both components are manufactured by Vishay General Semiconductor - Diodes Division within the SM6T TransZorb® series and share identical electrical specifications and package format.

The primary distinction is product status: SM6T30CAHM3_A/H is classified as Obsolete, while SM6T30CAHM3_B/H maintains Active status. This status difference reflects supply chain availability and long-term manufacturability. Both parts maintain Automotive grade classification and AEC-Q101 qualification, ensuring compliance with automotive reliability standards. Both achieve ROHS3 compliance and REACH Unaffected status, satisfying environmental and regulatory requirements.

For new designs or ongoing production requiring TVS diode protection at 25.6V standoff with 41.5V clamping in DO-214AA package format, SM6T30CAHM3_B/H is the appropriate selection due to its Active product status and confirmed availability.

Frequently Asked Questions (FAQ)

Q: Can SM6T30CAHM3_B/H be used as a direct replacement for SM6T30CAHM3_A/H?

A: Yes. Both components are electrically and mechanically identical. They share the same voltage specifications (25.6V standoff, 28.5V breakdown minimum, 41.5V clamping maximum), current rating (14.5A peak pulse), power dissipation (600W), operating temperature range (-65°C to 150°C), package format (DO-214AA/SMB), and automotive qualifications (AEC-Q101). The difference is product status: SM6T30CAHM3_A/H is Obsolete while SM6T30CAHM3_B/H is Active.

Q: What is the significance of the Obsolete status for SM6T30CAHM3_A/H?

A: Obsolete status indicates the part is no longer in active production. This affects long-term supply availability and support. Transitioning to the Active equivalent SM6T30CAHM3_B/H ensures continued access to the component and manufacturer support.

Q: Are there packaging differences between these parts?

A: The primary packaging difference is the supply format. SM6T30CAHM3_A/H is supplied in Tape & Reel (TR) format, while SM6T30CAHM3_B/H is supplied in Bulk format. Both use the identical DO-214AA (SMB) component package. The supply format does not affect electrical performance or board-level compatibility.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both SM6T30CAHM3_A/H and SM6T30CAHM3_B/H carry Automotive grade classification and AEC-Q101 qualification, meeting automotive reliability and quality standards.

Q: Are there any compliance or regulatory differences?

A: No. Both parts are ROHS3 Compliant and REACH Unaffected, satisfying environmental and regulatory requirements identically.