TPC33AHM3/86A Equivalent & Substitute Parts

Part Overview

The TPC33AHM3/86A 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 and industrial applications, featuring a 28.2V reverse standoff voltage and 45.7V maximum clamping voltage. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement.

Substiute Parts

TPC33AHM3/86A

Vishay General Semiconductor - Diodes DivisionIn Stock: 1100TPC33AHM3/86A Datasheet

Current PartRFQ

TPC33AHM3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 3320TPC33AHM3_A/H Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPC33AHM3/86A is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff (Typ): 28.2V
• Voltage - Breakdown (Min): 31.4V
• Voltage - Clamping (Max) @ Ipp: 45.7V
• Current - Peak Pulse (10/1000µs): 32.8A
• Power - Peak Pulse: 1500W
• Type: Zener, Unidirectional (1 channel)

Mechanical & Compliance Equivalence Criteria:

• Mounting Type: Surface Mount
• Package / Case: TO-277, 3-PowerDFN
• Supplier Device Package: TO-277A (SMPC)
• Operating Temperature Range: -65°C to 185°C (TJ)
• Grade: Automotive
• Qualification: AEC-Q101
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute part TPC33AHM3_A/H maintains identical electrical performance and mechanical compatibility while differing only in packaging format (Tape & Reel vs. bulk) and product status (Active vs. Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The TPC33AHM3_A/H is a direct functional equivalent to the obsolete TPC33AHM3/86A. Both parts are manufactured by Vishay General Semiconductor - Diodes Division and share identical electrical specifications, thermal operating range, and mechanical package dimensions. Both components maintain AEC-Q101 automotive qualification and ROHS3 compliance.

The primary distinction is product status: TPC33AHM3/86A is obsolete, while TPC33AHM3_A/H is active. The substitute part is available in Tape & Reel packaging format, which is standard for production procurement. For applications currently using the obsolete variant, transition to TPC33AHM3_A/H provides continued access to an electrically and mechanically identical component with active manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can TPC33AHM3_A/H be used as a direct replacement for TPC33AHM3/86A?

A: Yes. Both parts are identical in electrical performance, thermal characteristics, and mechanical package specifications. The substitute part differs only in product status (active vs. obsolete) and packaging format (Tape & Reel vs. bulk).

Q: What is the difference between the packaging formats?

A: TPC33AHM3/86A is supplied in bulk packaging, while TPC33AHM3_A/H is supplied in Tape & Reel (TR) format. Tape & Reel is the standard packaging for automated assembly processes. Both formats contain the same component with identical electrical and mechanical properties.

Q: Are both parts qualified for automotive applications?

A: Yes. Both TPC33AHM3/86A and TPC33AHM3_A/H carry AEC-Q101 automotive qualification and are rated for the automotive grade. Both operate across the full temperature range of -65°C to 185°C (TJ).

Q: Do both parts meet RoHS compliance requirements?

A: Yes. Both components are ROHS3 compliant and have a Moisture Sensitivity Level of 1 (Unlimited), indicating no moisture sensitivity restrictions.

Q: What is the significance of the TO-277A (SMPC) package?

A: The TO-277A (SMPC) is a surface-mount power package designed for high-current transient suppression applications. Both parts use this identical package, ensuring mechanical and thermal compatibility in existing PCB designs.