TPC6.8AHM3/87A Equivalent & Substitute Parts

Part Overview

The TPC6.8AHM3/87A is a unidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for transient overvoltage protection in automotive applications. This component features a 5.8V reverse standoff voltage with a 10.5V maximum clamping voltage and 143A peak pulse current capability. The part is classified as obsolete, making identification of active equivalent models essential for ongoing design support and procurement.

Substiute Parts

TPC6.8AHM3/87A

Vishay General Semiconductor - Diodes DivisionIn Stock: 845TPC6.8AHM3/87A Datasheet

Current PartRFQ

TPC6.8AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1073TPC6.8AHM3_A/I Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPC6.8AHM3/87A is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff (Typ): 5.8V
• Voltage - Breakdown (Min): 6.45V
• Voltage - Clamping (Max) @ Ipp: 10.5V
• Current - Peak Pulse (10/1000µs): 143A
• Power - Peak Pulse: 1500W

Mechanical & Package Equivalence Criteria:

• Unidirectional Channels: 1
• Mounting Type: Surface Mount
• Package / Case: TO-277, 3-PowerDFN
• Supplier Device Package: TO-277A (SMPC)

Compliance & Environmental Criteria:

• Grade: Automotive
• Qualification: AEC-Q101
• Operating Temperature Range: -65°C to 185°C (TJ)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The substitute part TPC6.8AHM3_A/I maintains identical electrical performance, mechanical compatibility, and automotive qualification standards, with the primary distinction being active product status and packaging format (Tape & Reel).

Parameter Comparison

Engineering Selection Recommendations

The TPC6.8AHM3_A/I is a direct electrical and mechanical equivalent to the obsolete TPC6.8AHM3/87A. Selection of the substitute part is based on the following engineering factors:

Product Status: The TPC6.8AHM3_A/I maintains active product status with Vishay General Semiconductor - Diodes Division, ensuring continued availability and manufacturing support. The original part number TPC6.8AHM3/87A is classified as obsolete, necessitating transition to an active equivalent for new designs and ongoing procurement.

Compliance & Certification: Both parts carry identical automotive-grade qualification (AEC-Q101) and ROHS3 compliance status, meeting all regulatory requirements for automotive applications without modification to design specifications or qualification documentation.

Packaging Consideration: The primary difference between the two part numbers is packaging format. The TPC6.8AHM3/87A is supplied in bulk packaging, while the TPC6.8AHM3_A/I is supplied in Tape & Reel (TR) format. This distinction affects procurement logistics and assembly processes but does not impact electrical or mechanical performance.

Frequently Asked Questions (FAQ)

Q: Can TPC6.8AHM3_A/I be used as a direct replacement for TPC6.8AHM3/87A in existing designs?

A: Yes. The TPC6.8AHM3_A/I is electrically and mechanically identical to TPC6.8AHM3/87A across all critical parameters including voltage ratings, current handling, temperature range, and package configuration. No design modifications are required.

Q: What is the difference between the two part numbers?

A: The primary difference is product status and packaging format. TPC6.8AHM3/87A is obsolete and supplied in bulk packaging. TPC6.8AHM3_A/I is active and supplied in Tape & Reel (TR) format for automated assembly processes.

Q: Are both parts qualified for automotive applications?

A: Yes. Both parts carry AEC-Q101 automotive qualification and are rated for automotive-grade applications across the operating temperature range of -65°C to 185°C (TJ).

Q: Does the Tape & Reel packaging affect component performance?

A: No. Tape & Reel packaging is a supply format used for automated assembly processes. It does not affect the electrical characteristics, mechanical properties, or performance of the TVS diode itself.

Q: Are there any compliance or regulatory differences between the two parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 1 - Unlimited). No additional compliance documentation or qualification is required when transitioning from TPC6.8AHM3/87A to TPC6.8AHM3_A/I.

Q: What are the key electrical parameters that define substitution for this TVS diode?

A: Substitution is determined by matching the reverse standoff voltage (5.8V), breakdown voltage (6.45V minimum), clamping voltage (10.5V maximum), peak pulse current (143A), and peak pulse power (1500W). The TPC6.8AHM3_A/I maintains all of these specifications identically.