TPSMP20HM3/84A Equivalent & Substitute Parts

Part Overview

The TPSMP20HM3/84A is a unidirectional Zener-type transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for surface mount applications in the DO-220AA (SMP) package and is qualified to automotive grade AEC-Q101 standards. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

TPSMP20HM3/84A

Vishay General Semiconductor - Diodes DivisionIn Stock: 908TPSMP20HM3/84A Datasheet

Current PartRFQ

TPSMP20AHM3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 1026TPSMP20AHM3_A/H Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPSMP20HM3/84A is determined by the following critical parameters:

• Package compatibility: DO-220AA (SMP) surface mount package
• Electrical classification: Unidirectional Zener TVS diode with single channel
• Voltage rating range: Reverse standoff voltage and clamping voltage within acceptable tolerance
• Current handling capability: Peak pulse current rating
• Thermal performance: Operating temperature range -65°C to 185°C
• Compliance standards: Automotive grade AEC-Q101 qualification
• Environmental compliance: ROHS3 and REACH requirements

The substitute part TPSMP20AHM3_A/H shares the same base product number (TPSMP20), manufacturer, package type, and automotive qualification. Both parts are manufactured by Vishay General Semiconductor - Diodes Division and maintain identical thermal operating ranges and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The TPSMP20AHM3_A/H is an active product substitute for the obsolete TPSMP20HM3/84A. Both components maintain identical automotive grade AEC-Q101 qualification, ROHS3 compliance, and thermal operating specifications. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

Electrical parameter variations exist between the two parts: the substitute exhibits a higher reverse standoff voltage (17.1V vs. 16.2V) and lower peak pulse current rating (14.4A vs. 28.8A). These differences require circuit-level evaluation to confirm compatibility with the intended application. Both parts share identical package geometry, mounting type, and power dissipation capability (400W peak pulse), enabling direct physical substitution in PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can TPSMP20AHM3_A/H be used as a direct replacement for TPSMP20HM3/84A?

A: Physical substitution is possible due to identical DO-220AA package geometry and mounting type. However, electrical parameter differences—specifically the lower peak pulse current rating (14.4A vs. 28.8A) and higher reverse standoff voltage (17.1V vs. 16.2V)—require circuit validation to confirm functional compatibility with the original design specifications.

Q: What is the primary reason for seeking a substitute?

A: The TPSMP20HM3/84A is classified as obsolete. The TPSMP20AHM3_A/H is an active product from the same manufacturer and product family, providing procurement continuity and long-term availability.

Q: Are both parts qualified to the same automotive standards?

A: Yes. Both the TPSMP20HM3/84A and TPSMP20AHM3_A/H are qualified to AEC-Q101 automotive grade standards and are ROHS3 compliant.

Q: What packaging options are available for the substitute part?

A: The TPSMP20AHM3_A/H is supplied in Tape & Reel (TR) packaging, whereas the main part does not specify a packaging format in the provided data.

Q: Are there differences in thermal performance?

A: No. Both parts operate across the identical temperature range of -65°C to 185°C (TJ) and maintain the same 400W peak pulse power rating.