TPC10HM3/86A Equivalent & Substitute Parts

Part Overview

The TPC10HM3/86A is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for transient overvoltage protection in automotive applications, featuring an 8.1V reverse standoff voltage and 15V maximum clamping voltage at peak pulse current. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity. The TPC10AHM3_A/H serves as a direct functional equivalent from the same manufacturer series.

Substiute Parts

TPC10HM3/86A

Vishay General Semiconductor - Diodes DivisionIn Stock: 862TPC10HM3/86A Datasheet

Current PartRFQ

TPC10AHM3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 16939TPC10AHM3_A/H Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPC10HM3/86A is determined by strict alignment of the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Reverse standoff voltage tolerance (8.1V nominal for TPC10HM3/86A)
• Breakdown voltage minimum (9V)
• Clamping voltage at peak pulse current (15V maximum)
• Peak pulse current rating (100A)
• Peak pulse power dissipation (1500W)
• Operating temperature range (-65°C to 185°C)
• Package type (TO-277A SMPC)
• Automotive grade qualification (AEC-Q101)

The TPC10AHM3_A/H meets these substitution criteria as a member of the same PAR® and eSMP® series from Vishay, with compatible electrical performance within the specified parameter ranges and identical package configuration.

Parameter Comparison

Engineering Selection Recommendations

The TPC10AHM3_A/H is a direct substitute for the obsolete TPC10HM3/86A based on the following engineering criteria:

Compliance and Certification: Both components maintain identical automotive grade classification and AEC-Q101 qualification, ensuring compliance with automotive transient voltage suppression requirements.

Electrical Performance: The TPC10AHM3_A/H operates within compatible voltage and current parameters. The reverse standoff voltage increases from 8.1V to 8.55V, and the breakdown voltage increases from 9V to 9.5V, representing minor parameter variations within acceptable substitution tolerances. The clamping voltage decreases from 15V to 14.5V, providing improved transient suppression performance. Peak pulse current increases marginally from 100A to 103A.

Package and Thermal Compatibility: Identical TO-277A (SMPC) package configuration and operating temperature range (-65°C to 185°C) ensure direct mechanical and thermal compatibility in existing PCB designs.

Product Status: The TPC10AHM3_A/H maintains active product status with substantial inventory availability (16,900 pcs), providing supply chain continuity for the obsolete TPC10HM3/86A.

Environmental Compliance: Both components are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, maintaining identical environmental and handling requirements.

Frequently Asked Questions (FAQ)

Q: Can the TPC10AHM3_A/H be used as a direct replacement for the TPC10HM3/86A without PCB modifications?

A: Yes. Both components share identical TO-277A (SMPC) package configuration and pinout, enabling direct PCB substitution without layout changes.

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

A: The TPC10AHM3_A/H exhibits a higher reverse standoff voltage (8.55V vs. 8.1V) and breakdown voltage (9.5V vs. 9V), with a slightly lower clamping voltage (14.5V vs. 15V) and marginally higher peak pulse current (103A vs. 100A). These variations remain within acceptable substitution parameters for automotive TVS diode applications.

Q: Are both components qualified for automotive applications?

A: Yes. Both the TPC10HM3/86A and TPC10AHM3_A/H carry automotive grade classification and AEC-Q101 qualification, meeting automotive transient voltage suppression standards.

Q: What is the packaging difference between the two parts?

A: The TPC10HM3/86A is supplied in standard packaging, while the TPC10AHM3_A/H is available in Tape & Reel (TR) format. Both use identical TO-277A (SMPC) component packaging.

Q: Are there any temperature or environmental differences?

A: No. Both components operate across the identical temperature range (-65°C to 185°C), maintain ROHS3 compliance, and share MSL 1 (Unlimited) moisture sensitivity rating.

Q: Why is the TPC10HM3/86A listed as obsolete?

A: Product obsolescence reflects manufacturer discontinuation decisions. The TPC10AHM3_A/H from the same PAR® and eSMP® series provides equivalent functionality with active product status and reliable supply availability.