TPSMC7.5HE3_A/I Equivalent & Substitute Parts

Part Overview

The TPSMC7.5HE3_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-214AB (SMC) package and provides transient overvoltage protection with a 6.05V reverse standoff voltage and 11.7V maximum clamping voltage. The part is classified as obsolete, making identification of active equivalent components essential for ongoing production and design continuity.

Substiute Parts

TPSMC7.5HE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 824TPSMC7.5HE3_A/I Datasheet

Current PartRFQ

TPSMC7.5AHE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1178TPSMC7.5AHE3_B/I Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPSMC7.5HE3_A/I is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Package / Case: DO-214AB (SMC) surface mount configuration
• Unidirectional Zener TVS diode type
• Reverse standoff voltage range: 6.05V nominal (allows tolerance variation)
• Clamping voltage range: 11.7V maximum (allows lower values within circuit tolerance)
• Peak pulse current capability: minimum 128A (10/1000µs)
• Peak pulse power dissipation: 1500W (1.5kW)
• Operating temperature range: -65°C ~ 185°C (TJ)
• Automotive grade with AEC-Q101 qualification
• ROHS3 compliance and MSL 1 rating

The substitute part TPSMC7.5AHE3_B/I meets all mandatory criteria with minor parameter variations within acceptable engineering tolerances for TVS diode applications.

Parameter Comparison

Engineering Selection Recommendations

The TPSMC7.5AHE3_B/I is the direct substitute for the obsolete TPSMC7.5HE3_A/I. Both components share identical automotive qualification (AEC-Q101), ROHS3 compliance, and MSL 1 rating, ensuring equivalent reliability and regulatory acceptance in automotive applications.

The substitute part is currently in active production status with higher inventory availability (1119 pcs vs. 776 pcs), providing supply chain continuity. The packaging format differs (Tape & Reel vs. standard packaging), which is a logistics consideration rather than a functional limitation.

Parameter variations between the two parts are within normal manufacturing tolerances for TVS diodes:

• Reverse standoff voltage increases from 6.05V to 6.4V
• Clamping voltage decreases from 11.7V to 11.3V
• Peak pulse current increases from 128A to 133A

These variations maintain functional equivalence for transient voltage suppression applications within the specified operating range.

Frequently Asked Questions (FAQ)

Q: Can TPSMC7.5AHE3_B/I be used as a direct replacement for TPSMC7.5HE3_A/I?

A: Yes. Both components are unidirectional Zener TVS diodes in the DO-214AB (SMC) package with identical automotive grade and AEC-Q101 qualification. The electrical parameter variations fall within acceptable tolerances for TVS diode substitution.

Q: What is the significance of the product status change from Obsolete to Active?

A: The substitute part is in active production, ensuring long-term availability and supply chain stability. This addresses the obsolescence of the original part while maintaining functional and compliance equivalence.

Q: Are there packaging differences between these parts?

A: The main part uses standard packaging, while the substitute is supplied in Tape & Reel (TR) format. This is a supply format difference and does not affect component functionality or performance.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the TPSMC7.5HE3_A/I and TPSMC7.5AHE3_B/I carry Automotive grade classification and AEC-Q101 qualification, meeting automotive industry reliability and quality standards.

Q: How do the electrical parameters compare?

A: The reverse standoff voltage is slightly higher (6.4V vs. 6.05V), the clamping voltage is slightly lower (11.3V vs. 11.7V), and the peak pulse current is marginally higher (133A vs. 128A). These variations are within normal manufacturing tolerances and do not affect circuit protection performance.

Q: Are both parts RoHS compliant?

A: Yes. Both components are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting environmental and handling requirements for modern electronics manufacturing.