SM6T100AHM3_A/I Equivalent & Substitute Parts

Part Overview

The SM6T100AHM3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for transient overvoltage protection in surface mount applications, featuring a 137V maximum clamping voltage and 4.4A peak pulse current capability. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and field service applications.

Substiute Parts

SM6T100AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1112SM6T100AHM3_A/I Datasheet

Current PartRFQ

SM6T100AHM3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1030SM6T100AHM3_B/I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SM6T100AHM3_A/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 85.5V
• Voltage - Breakdown (Min): 95V
• Voltage - Clamping (Max) @ Ipp: 137V
• Current - Peak Pulse (10/1000µs): 4.4A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA (SMB)
• Unidirectional topology (single channel)
• Operating Temperature Range: -65°C to 150°C
• Automotive Grade with AEC-Q101 qualification
• RoHS3 compliance

The SM6T100AHM3_B/I is a direct functional equivalent, maintaining identical electrical performance specifications while differing only in product status (active vs. obsolete) and packaging format (Tape & Reel vs. standard packaging).

Parameter Comparison

Engineering Selection Recommendations

The SM6T100AHM3_B/I is the direct substitute for the obsolete SM6T100AHM3_A/I. Both parts are manufactured by Vishay within the SM6T TransZorb® series and maintain identical electrical and thermal specifications. The substitute part carries active product status, ensuring ongoing availability and manufacturing support.

Both parts satisfy automotive-grade requirements with AEC-Q101 qualification and ROHS3 compliance, meeting regulatory and environmental standards for automotive and industrial applications. The primary distinction is packaging format: the substitute is supplied in Tape & Reel configuration, which is standard for high-volume production environments.

Selection of SM6T100AHM3_B/I eliminates obsolescence risk while preserving full electrical and mechanical compatibility with existing designs.

Frequently Asked Questions (FAQ)

Q: Can SM6T100AHM3_B/I be used as a direct replacement for SM6T100AHM3_A/I?

A: Yes. Both parts are electrically and mechanically identical, with matching voltage ratings (85.5V standoff, 137V clamping), current ratings (4.4A peak pulse), power dissipation (600W), package type (DO-214AA SMB), and operating temperature range (-65°C to 150°C). The substitute is the manufacturer-recommended equivalent.

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

A: The primary difference is product status and packaging format. SM6T100AHM3_A/I is obsolete with standard packaging, while SM6T100AHM3_B/I is active with Tape & Reel packaging. Electrical performance is identical.

Q: Are both parts automotive-qualified?

A: Yes. Both SM6T100AHM3_A/I and SM6T100AHM3_B/I carry automotive grade classification with AEC-Q101 qualification, suitable for automotive and industrial applications requiring transient overvoltage protection.

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

A: No. Tape & Reel is a supply format for automated assembly. The component itself and its electrical characteristics remain unchanged. The die, lead frame, and performance specifications are identical.

Q: Are there any compliance differences between the two parts?

A: No. Both parts are ROHS3 compliant and REACH unaffected, meeting identical environmental and regulatory requirements.

Q: What applications are these parts suitable for?

A: The SM6T100AHM3_B/I is documented for telecom applications. Both parts function as unidirectional TVS diodes for transient voltage suppression in circuits requiring 85.5V to 137V protection levels with 4.4A peak pulse current handling.