TPSMC16HE3_A/I Equivalent & Substitute Parts

Part Overview

The TPSMC16HE3_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 12.9V reverse standoff voltage and 23.5V maximum clamping voltage. The part is classified as obsolete, making identification of active equivalent components essential for ongoing design support and procurement continuity.

Substiute Parts

TPSMC16HE3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 822TPSMC16HE3_A/I Datasheet

Current PartRFQ

TPSMC16AHE3_B/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1021TPSMC16AHE3_B/I Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPSMC16HE3_A/I is determined by the following critical parameters:

• Package Compatibility: Both parts must use DO-214AB (SMC) surface mount package
• Electrical Classification: Both must be unidirectional Zener-type TVS diodes
• Voltage Range: Reverse standoff voltage and clamping voltage must fall within acceptable operating margins for the protected circuit
• Current Rating: Peak pulse current capability must meet or exceed the transient protection requirements
• Power Dissipation: Peak pulse power rating must support the application's transient energy levels
• Temperature Range: Operating temperature range must encompass the application environment
• Automotive Compliance: Both parts must maintain AEC-Q101 qualification and automotive-grade designation
• Environmental Standards: RoHS3 compliance and MSL rating must be maintained

The TPSMC16AHE3_B/I qualifies as a direct substitute based on matching all critical parameters within acceptable engineering tolerances while offering active product status.

Parameter Comparison

Engineering Selection Recommendations

The TPSMC16AHE3_B/I is the qualified substitute for the obsolete TPSMC16HE3_A/I. Selection is based on the following engineering criteria:

Product Status: The main part is classified as obsolete, while the substitute maintains active product status. This ensures long-term availability and continued manufacturer support.

Compliance and Certification: Both parts maintain identical automotive-grade designation and AEC-Q101 qualification, confirming suitability for automotive applications. Both are ROHS3 compliant with MSL rating of 1 (Unlimited), meeting environmental and reliability standards.

Electrical Compatibility: The substitute exhibits slightly higher reverse standoff voltage (13.6V vs. 12.9V) and marginally lower clamping voltage (22.5V vs. 23.5V), with increased peak pulse current capability (66.7A vs. 63.8A). These variations remain within acceptable substitution tolerances for TVS diode applications.

Package and Mounting: Identical DO-214AB (SMC) surface mount package ensures direct PCB compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can TPSMC16AHE3_B/I be used as a direct replacement for TPSMC16HE3_A/I?

A: Yes. Both components share identical package geometry (DO-214AB, SMC), electrical classification (unidirectional Zener TVS), operating temperature range (-65°C to 185°C), and automotive compliance (AEC-Q101). The substitute offers active product status, making it the recommended choice for new designs and ongoing procurement.

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

A: The substitute exhibits a 0.7V higher reverse standoff voltage (13.6V vs. 12.9V), 1.0V lower clamping voltage (22.5V vs. 23.5V), and 2.9A higher peak pulse current (66.7A vs. 63.8A). Peak pulse power rating remains identical at 1500W. These differences are within normal manufacturing tolerances for TVS diodes and do not affect functional substitution.

Q: Are there packaging differences between these parts?

A: No. Both parts use identical DO-214AB (SMC) surface mount packaging. The main part is supplied in standard packaging, while the substitute is available in Tape & Reel (TR) format. Both are suitable for automated assembly processes.

Q: Do both parts meet automotive standards?

A: Yes. Both the TPSMC16HE3_A/I and TPSMC16AHE3_B/I are automotive-grade components with AEC-Q101 qualification, confirming compliance with automotive reliability and quality standards.

Q: What is the moisture sensitivity level for these components?

A: Both parts have an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.