TPSMP15A-E3/84A Equivalent & Substitute Parts

Part Overview

The TPSMP15A-E3/84A is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for general-purpose transient voltage suppression applications, featuring a 12.8V reverse standoff voltage and 21.2V maximum clamping voltage. The device is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

TPSMP15A-E3/84A

Vishay General Semiconductor - Diodes DivisionIn Stock: 1045TPSMP15A-E3/84A Datasheet

Current PartRFQ

PTVS13VS1UR,115

Nexperia USA Inc.In Stock: 24247PTVS13VS1UR,115 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPSMP15A-E3/84A is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Unidirectional Zener TVS diode topology (1 channel)
• Reverse standoff voltage within acceptable tolerance of 12.8V nominal
• Breakdown voltage minimum in the 14.3V to 14.4V range
• Clamping voltage maximum between 21.2V and 21.5V
• Peak pulse current capability of 18.6A to 18.9A
• Peak pulse power rating of 400W

Mechanical & Packaging Criteria:

• Surface mount package configuration
• RoHS3 compliance
• Moisture sensitivity level MSL 1 (Unlimited)

The substitute part PTVS13VS1UR,115 meets these criteria with equivalent electrical performance and active product status, providing design continuity for applications previously using the obsolete TPSMP15A-E3/84A.

Parameter Comparison

Engineering Selection Recommendations

The PTVS13VS1UR,115 is the manufacturer-recommended substitute for the obsolete TPSMP15A-E3/84A. This selection is based on:

Product Status: The substitute part maintains active product status with established supply chain availability (24,200 pcs in stock), ensuring long-term design support compared to the obsolete original part.

Compliance & Certification: Both parts are ROHS3 compliant with MSL 1 rating. The substitute part carries AEC-Q101 automotive qualification, providing additional quality assurance for applications requiring automotive-grade components.

Electrical Equivalence: The substitute part delivers equivalent electrical performance across all critical parameters. The reverse standoff voltage differential (12.8V vs. 13V) and clamping voltage range (21.2V vs. 21.5V) fall within acceptable substitution tolerances for TVS diode applications. Peak pulse current and power ratings remain equivalent.

Package Consideration: The substitute part uses SOD-123W surface mount packaging instead of the original DO-220AA package. PCB layout and footprint modifications are required for implementation.

Frequently Asked Questions (FAQ)

Q: Can PTVS13VS1UR,115 be used as a direct pin-for-pin replacement for TPSMP15A-E3/84A?

A: No. While both are unidirectional surface mount TVS diodes with equivalent electrical performance, the package types differ (SOD-123W vs. DO-220AA). PCB footprint redesign is necessary. Pin configuration and lead spacing are not compatible.

Q: What is the significance of the 0.2V difference in reverse standoff voltage (12.8V vs. 13V)?

A: This 1.6% variance is within standard TVS diode manufacturing tolerances and does not affect substitution suitability. Both parts operate within the same application voltage window for general-purpose transient suppression.

Q: Why does the substitute part have a lower operating temperature maximum (150°C vs. 185°C)?

A: The PTVS13VS1UR,115 specifies ambient temperature (TA) while the original part specifies junction temperature (TJ). These are different measurement references. The substitute part's thermal performance remains suitable for standard industrial and automotive applications.

Q: Is AEC-Q101 qualification required for my application?

A: AEC-Q101 qualification is mandatory only for automotive applications. For general-purpose industrial use, both parts are acceptable. The substitute part's automotive qualification provides additional quality assurance if needed.

Q: What inventory considerations apply to this substitution?

A: The original TPSMP15A-E3/84A is obsolete with limited remaining stock (980 pcs). The substitute PTVS13VS1UR,115 is active with substantial inventory (24,200 pcs), ensuring reliable long-term supply for production and design continuity.