TPSMC15HE3_A/I Equivalent & Substitute Parts

Part Overview

The TPSMC15HE3_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 12.1V reverse standoff voltage and 22V maximum clamping voltage. The part is classified as Obsolete, making identification of suitable substitute components essential for ongoing design support and procurement.

Substiute Parts

TPSMC15HE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 775TPSMC15HE3_A/I Datasheet

Current PartRFQ

TPSMC15AHE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 913TPSMC15AHE3_B/I Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPSMC15HE3_A/I is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Unidirectional channel configuration (1 channel required)
• Reverse standoff voltage within acceptable tolerance of 12.1V
• Breakdown voltage minimum of 13.5V or higher
• Clamping voltage at maximum 22V or lower
• Peak pulse current rating of 68.2A or higher
• Peak pulse power rating of 1500W or higher
• Operating temperature range of -65°C to 185°C (TJ)

Mechanical & Compliance Criteria:

• Surface mount package: DO-214AB (SMC)
• Automotive grade classification
• AEC-Q101 qualification
• RoHS3 compliance
• MSL rating of 1 (Unlimited)

The substitute part TPSMC15AHE3_B/I meets all these criteria while offering an Active product status, making it a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The TPSMC15AHE3_B/I is a direct substitute for the obsolete TPSMC15HE3_A/I. Both components share identical automotive grade classification, AEC-Q101 qualification, and RoHS3 compliance status. The substitute maintains the same operating temperature range, package form factor, and peak pulse power rating.

The TPSMC15AHE3_B/I offers improved electrical performance with a higher peak pulse current rating (70.8A versus 68.2A) and a lower maximum clamping voltage (21.2V versus 22V), while maintaining compatibility with the same circuit protection requirements. The Active product status of the substitute ensures ongoing availability and manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can TPSMC15AHE3_B/I be used as a direct replacement for TPSMC15HE3_A/I?

A: Yes. Both components are unidirectional TVS diodes with identical package geometry (DO-214AB, SMC), operating temperature range (-65°C to 185°C), and automotive-grade certifications (AEC-Q101). The electrical parameters of the substitute fall within acceptable tolerance ranges for transient voltage suppression applications.

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

A: The TPSMC15AHE3_B/I has a slightly higher reverse standoff voltage (12.8V versus 12.1V), higher breakdown voltage minimum (14.3V versus 13.5V), lower maximum clamping voltage (21.2V versus 22V), and higher peak pulse current rating (70.8A versus 68.2A). The substitute is Active, while the original is Obsolete.

Q: Are there any packaging differences?

A: Both parts use the DO-214AB (SMC) surface mount package. The substitute is available in Tape & Reel (TR) packaging, which is standard for production environments.

Q: Do both parts meet the same compliance standards?

A: Yes. Both components are RoHS3 compliant, AEC-Q101 qualified, and carry MSL rating 1 (Unlimited). Both are classified as Automotive grade.

Q: Which part should be selected for new designs?

A: The TPSMC15AHE3_B/I should be selected for new designs due to its Active product status, which ensures long-term availability and manufacturing support.