TPSMC13HE3_A/I Equivalent & Substitute Parts

Part Overview

The TPSMC13HE3_A/I is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, designed for surface mount applications in the DO-214AB (SMC) package. This component provides transient overvoltage protection with a 10.5V reverse standoff voltage and 19V maximum clamping voltage at peak pulse current. The part is classified as Obsolete, making identification of compatible substitute components essential for ongoing design support and procurement.

Substiute Parts

TPSMC13HE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 790TPSMC13HE3_A/I Datasheet

Current PartRFQ

TPSMC13AHE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1223TPSMC13AHE3_B/I Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPSMC13HE3_A/I is determined by the following critical parameters:

• Package Compatibility: Both parts must use DO-214AB (SMC) surface mount package for mechanical and thermal compatibility
• Voltage Rating Alignment: Reverse standoff voltage, breakdown voltage, and clamping voltage must fall within acceptable operating margins for the protected circuit
• Current Handling: Peak pulse current rating must meet or exceed the transient energy requirements
• Power Dissipation: Peak pulse power rating must support the same thermal stress conditions
• Temperature Range: Operating temperature range must encompass the application environment
• Automotive Grade & AEC-Q101 Certification: Required for automotive applications to ensure reliability and traceability
• RoHS Compliance: ROHS3 compliance ensures regulatory alignment

The TPSMC13AHE3_B/I meets all substitution criteria within these parameters.

Parameter Comparison

Engineering Selection Recommendations

The TPSMC13AHE3_B/I is the qualified substitute for the obsolete TPSMC13HE3_A/I. Selection is based on the following engineering criteria:

• Product Status: The substitute part maintains Active status, ensuring continued availability and manufacturing support, whereas the main part is Obsolete
• Automotive Compliance: Both parts carry Automotive grade classification and AEC-Q101 qualification, meeting automotive reliability standards
• Regulatory Compliance: Both parts are ROHS3 compliant, satisfying environmental and regulatory requirements
• Electrical Performance: The substitute part delivers equivalent or superior electrical performance across all critical parameters: higher peak pulse current (82.4A vs 78.9A), lower clamping voltage (18.2V vs 19V), and identical power dissipation capability
• Mechanical Compatibility: Identical DO-214AB (SMC) package ensures direct board-level substitution without layout modifications
• Thermal Performance: Matching operating temperature range (-65 to 185°C) ensures thermal compatibility in the target application

Frequently Asked Questions (FAQ)

Q: Can TPSMC13AHE3_B/I be used as a direct replacement for TPSMC13HE3_A/I?

A: Yes. Both parts share identical package geometry (DO-214AB/SMC), mounting type (surface mount), and thermal operating range. Electrical parameters are compatible within the design margins of typical TVS diode applications.

Q: What is the difference in clamping voltage between these parts?

A: The main part clamps at 19V maximum, while the substitute clamps at 18.2V maximum. The lower clamping voltage of the substitute provides marginally better transient suppression performance.

Q: Are there any packaging differences?

A: The main part is supplied in standard packaging, while the substitute is supplied in Tape & Reel (TR) format. Both use the same DO-214AB (SMC) component package. Tape & Reel packaging is standard for high-volume surface mount assembly.

Q: Does the substitute part meet automotive qualification requirements?

A: Yes. The TPSMC13AHE3_B/I carries Automotive grade classification and AEC-Q101 qualification, identical to the main part, ensuring compliance with automotive reliability and traceability standards.

Q: Why is the main part listed as Obsolete?

A: Product obsolescence is determined by the manufacturer based on market demand and production decisions. The substitute part, with Active status, represents the current manufacturing equivalent and is the recommended selection for new designs and ongoing procurement.