TPSMA30HE3_A/I Equivalent & Substitute Parts Reference

Part Overview

The TPSMA30HE3_A/I, manufactured by Vishay General Semiconductor - Diodes Division, is a Transient Voltage Suppressor (TVS) diode designed for automotive-grade applications. Featuring a 24.3V reverse standoff voltage, 43.5V maximum clamping voltage, and a peak pulse power rating of 400W, it is housed in a DO-214AC (SMA) surface-mount package and complies with AEC-Q101 and RoHS3 standards.

This product is currently listed as obsolete. Due to its discontinued status, identifying direct substitutes with equivalent or compatible specifications is essential for ongoing designs, replacements, and repairs.

Substiute Parts

TPSMA30HE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1191TPSMA30HE3_A/I Datasheet

Current PartRFQ

TPSMA30AHE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 8632TPSMA30AHE3_B/I Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute selection for Transient Voltage Suppressors (TVS) requires strict matching across key electrical and mechanical parameters:

• Voltage ratings: Reverse standoff, breakdown, and clamping voltages
• Peak pulse current and power ratings
• Compliance with automotive grade and AEC-Q101 qualifications
• Mounting type and package/case compatibility
• Environmental and safety certifications (RoHS, MSL)

Only the parts that match or exceed these explicit parameters are considered substitutes. The listed parameters are strictly derived from the provided inputs.

Parameter Comparison

Engineering Selection Recommendations

For continued use in designs and repairs, TPSMA30AHE3_B/I is a direct substitute for TPSMA30HE3_A/I. The substitute matches the critical compliance certifications: AEC-Q101 automotive qualification, RoHS3 compliance, and MSL 1 (Unlimited). The substitute part remains active in production, ensuring ongoing availability. Selection is based solely on product status and provided certification equivalence.

Frequently Asked Questions (FAQ)

Q1: What criteria are used to determine substitute compatibility for TVS diodes?
A1: Substitute compatibility is determined by matching voltage ratings, current and power ratings, package/case type, mounting style, automotive qualification, and environmental compliance as explicitly listed in the provided specifications.

Q2: Does the substitute part TPSMA30AHE3_B/I fit in the same footprint as TPSMA30HE3_A/I?
A2: Both parts use the DO-214AC (SMA) surface-mount package, ensuring direct mechanical footprint compatibility.

Q3: Are there any changes in compliance or automotive grade between the main part and substitute?
A3: Both parts are automotive grade and qualified to AEC-Q101 standards, with identical RoHS3 and MSL 1 compliance.

Q4: How do differences in voltage parameters affect substitution?
A4: Substitution is accepted when all parameters are strictly as provided. Any variation in voltage ratings is displayed in the comparison table for direct engineering evaluation.

Q5: Is the substitute part actively available for procurement?
A5: The substitute part TPSMA30AHE3_B/I is listed as active. The main part TPSMA30HE3_A/I is obsolete.