TPSMA30-4HE3_A/I Equivalent & Substitute Parts

Part Overview

The TPSMA30-4HE3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for surface mount applications in the DO-214AC (SMA) package and provides transient overvoltage protection with a 25.6V reverse standoff voltage and 41.4V maximum clamping voltage. The part is currently classified as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

TPSMA30-4HE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 7836TPSMA30-4HE3_A/I Datasheet

Current PartRFQ

TPSMA30-4HE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 988TPSMA30-4HE3_B/I Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPSMA30-4HE3_A/I is determined by strict equivalence across the following electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 25.6V
• Voltage - Breakdown (Min): 28.5V
• Voltage - Clamping (Max) @ Ipp: 41.4V
• Current - Peak Pulse (10/1000µs): 9.7A
• Power - Peak Pulse: 400W
• Package / Case: DO-214AC, SMA
• Mounting Type: Surface Mount
• Operating Temperature Range: -65°C to 185°C (TJ)
• Grade: Automotive
• Qualification: AEC-Q101

The TPSMA30-4HE3_B/I meets all these criteria and is classified as an active part, making it a direct functional and electrical equivalent suitable for replacement in applications currently using the obsolete TPSMA30-4HE3_A/I.

Parameter Comparison

Engineering Selection Recommendations

The TPSMA30-4HE3_B/I is the recommended substitute for the obsolete TPSMA30-4HE3_A/I. Both parts share identical electrical specifications, automotive-grade qualification (AEC-Q101), and RoHS3 compliance. The primary distinction is product status: the TPSMA30-4HE3_A/I is obsolete, while the TPSMA30-4HE3_B/I is active and available in standard Tape & Reel packaging. For new designs or ongoing production requiring transient voltage suppression in the 25.6V standoff range with 400W peak pulse power handling, the TPSMA30-4HE3_B/I provides continuity of supply and full electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the TPSMA30-4HE3_B/I be used as a direct replacement for the TPSMA30-4HE3_A/I?

A: Yes. Both parts are identical in electrical performance, voltage ratings, current handling, thermal range, and package configuration. The TPSMA30-4HE3_B/I is the active equivalent and suitable for direct substitution in all applications.

Q: What is the difference between the TPSMA30-4HE3_A/I and TPSMA30-4HE3_B/I?

A: The parts are electrically and mechanically identical. The primary difference is product lifecycle status: the TPSMA30-4HE3_A/I is obsolete, while the TPSMA30-4HE3_B/I is active. The TPSMA30-4HE3_B/I is supplied in Tape & Reel packaging for automated assembly.

Q: Are both parts qualified for automotive applications?

A: Yes. Both the TPSMA30-4HE3_A/I and TPSMA30-4HE3_B/I carry automotive-grade classification and AEC-Q101 qualification, meeting automotive reliability and quality standards.

Q: What are the key electrical parameters that define substitution for this TVS diode?

A: Substitution is determined by matching the reverse standoff voltage (25.6V), breakdown voltage (28.5V minimum), clamping voltage (41.4V maximum), peak pulse current (9.7A), and peak pulse power (400W). The DO-214AC (SMA) package and surface mount configuration must also be maintained.

Q: Is the TPSMA30-4HE3_B/I RoHS compliant?

A: Yes. The TPSMA30-4HE3_B/I is ROHS3 compliant with a Moisture Sensitivity Level (MSL) of 1 (Unlimited), matching the compliance profile of the original part.