TPC15HM3/87A Equivalent & Substitute Parts

Part Overview

The TPC15HM3/87A 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 a 12.1V reverse standoff voltage and 22V maximum clamping voltage. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for continued system support and new design implementations.

Substiute Parts

TPC15HM3/87A

Vishay General Semiconductor - Diodes DivisionIn Stock: 1074TPC15HM3/87A Datasheet

Current PartRFQ

TPC15AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 934TPC15AHM3_A/I Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPC15HM3/87A is determined by strict adherence to the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Unidirectional channel configuration (1 channel required)
• Voltage - Reverse Standoff range compatibility (12.1V nominal)
• Voltage - Clamping maximum @ Ipp (22V nominal)
• Current - Peak Pulse rating (68.2A nominal)
• Power - Peak Pulse dissipation (1500W)
• Operating temperature range (-65°C to 185°C)
• Automotive grade qualification (AEC-Q101)
• Surface mount package type (TO-277A SMPC)
• RoHS3 compliance requirement

The substitute part TPC15AHM3_A/I meets these criteria while maintaining active product status from the same manufacturer series (PAR®, eSMP®). Electrical parameters remain within acceptable tolerance windows for direct substitution in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

The TPC15AHM3_A/I is the qualified substitute for the obsolete TPC15HM3/87A. Both components share identical automotive grade classification and AEC-Q101 qualification, ensuring compliance with automotive reliability standards. The substitute maintains the same operating temperature range, RoHS3 compliance status, and surface mount package configuration.

The TPC15AHM3_A/I offers active product status with current manufacturing availability, eliminating supply chain risk associated with the obsolete TPC15HM3/87A. Electrical parameter variations (reverse standoff voltage 12.8V vs. 12.1V, clamping voltage 21.2V vs. 22V, and peak pulse current 70.8A vs. 68.2A) remain within acceptable tolerance windows for transient voltage suppression applications. The substitute's slightly higher peak pulse current rating provides equivalent or improved performance margins.

Frequently Asked Questions (FAQ)

Q: Can TPC15AHM3_A/I be used as a direct replacement for TPC15HM3/87A?

A: Yes. Both components are unidirectional TVS diodes with identical automotive grade, AEC-Q101 qualification, operating temperature range, and TO-277A (SMPC) package configuration. Electrical parameters are within acceptable tolerance windows for substitution.

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

A: The TPC15AHM3_A/I has a reverse standoff voltage of 12.8V (vs. 12.1V), clamping voltage of 21.2V (vs. 22V), and peak pulse current of 70.8A (vs. 68.2A). These variations remain within acceptable ranges for transient voltage suppression applications.

Q: Are there packaging differences between the main part and substitute?

A: No. Both components use identical TO-277A (SMPC) surface mount packaging. The TPC15AHM3_A/I is supplied in Tape & Reel format, while the TPC15HM3/87A packaging format was not specified in available data.

Q: What is the significance of the product status difference?

A: The TPC15HM3/87A is classified as obsolete, indicating discontinued manufacturing. The TPC15AHM3_A/I maintains active product status with current manufacturing support, ensuring long-term availability and supply chain continuity.

Q: Are both parts compliant with automotive standards?

A: Yes. Both components carry automotive grade classification and AEC-Q101 qualification, meeting automotive reliability and quality requirements. Both are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.