TPSMA8.2HE3_A/I Equivalent & Substitute Parts

Part Overview

The TPSMA8.2HE3_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 automotive applications and operates across a temperature range of -65°C to 185°C. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

TPSMA8.2HE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1201TPSMA8.2HE3_A/I Datasheet

Current PartRFQ

TPSMA8.2AHE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 840TPSMA8.2AHE3_B/I Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPSMA8.2HE3_A/I is determined by the following critical parameters:

• Unidirectional channel configuration (1 channel required)
• Reverse standoff voltage range (6.63V nominal)
• Breakdown voltage minimum threshold (7.38V or higher)
• Clamping voltage at peak pulse current (12.5V maximum)
• Peak pulse current capability (32A minimum)
• Peak pulse power rating (400W)
• Operating temperature range (-65°C to 185°C)
• Automotive grade classification with AEC-Q101 qualification
• Surface mount packaging in DO-214AC (SMA) form factor
• RoHS3 compliance and MSL 1 rating

The TPSMA8.2AHE3_B/I qualifies as a direct substitute based on alignment with these parameters within acceptable engineering tolerances for TVS diode applications.

Parameter Comparison

Engineering Selection Recommendations

The TPSMA8.2AHE3_B/I is the qualified substitute for the obsolete TPSMA8.2HE3_A/I. Both components share identical automotive grade classification and AEC-Q101 qualification status, ensuring compliance with automotive reliability standards. The substitute maintains the same operating temperature range, power rating, and packaging specifications.

The TPSMA8.2AHE3_B/I is currently in active production status, providing supply continuity for new designs and ongoing production requirements. Both parts carry ROHS3 compliance and MSL 1 rating, meeting environmental and moisture sensitivity requirements for automotive applications.

Frequently Asked Questions (FAQ)

Q: Can the TPSMA8.2AHE3_B/I be used as a direct replacement for the TPSMA8.2HE3_A/I?

A: Yes. Both components are unidirectional TVS diodes with identical automotive grade and AEC-Q101 qualification. They share the same operating temperature range, peak pulse power rating, and DO-214AC (SMA) packaging. The substitute maintains functional equivalence within the specified parameter tolerances.

Q: What are the key differences between these two parts?

A: The TPSMA8.2AHE3_B/I exhibits a slightly higher reverse standoff voltage (7.02V vs. 6.63V), higher breakdown voltage minimum (7.79V vs. 7.38V), and marginally higher peak pulse current capability (33.1A vs. 32A). The clamping voltage is slightly lower (12.1V vs. 12.5V). These variations remain within acceptable engineering tolerances for TVS diode substitution in automotive applications.

Q: Are there any packaging differences?

A: Both parts use the DO-214AC (SMA) surface mount package. The TPSMA8.2AHE3_B/I is supplied in Tape & Reel (TR) packaging, while the original part number does not specify packaging format in the provided data.

Q: Do both parts meet automotive compliance requirements?

A: Yes. Both the TPSMA8.2HE3_A/I and TPSMA8.2AHE3_B/I are classified as automotive grade components with AEC-Q101 qualification. Both are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating.

Q: Why is the original part marked as obsolete?

A: The TPSMA8.2HE3_A/I is classified as obsolete by the manufacturer. The TPSMA8.2AHE3_B/I is the active production equivalent, ensuring long-term supply availability and continued manufacturer support.