TPC33AHM3/87A Equivalent & Substitute Parts

Part Overview

The TPC33AHM3/87A 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 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 active equivalent parts essential for ongoing design support and procurement.

Substiute Parts

TPC33AHM3/87A

Vishay General Semiconductor - Diodes DivisionIn Stock: 1122TPC33AHM3/87A Datasheet

Current PartRFQ

TPC33AHM3_A/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 7534TPC33AHM3_A/I Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPC33AHM3/87A 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: Unidirectional Zener
• Operating Temperature Range: -65°C to 185°C (TJ)

Mechanical & Compliance Criteria:

• Mounting Type: Surface Mount
• Package / Case: TO-277, 3-PowerDFN
• Supplier Device Package: TO-277A (SMPC)
• Grade: Automotive
• Qualification: AEC-Q101
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The substitute part TPC33AHM3_A/I meets all electrical and mechanical requirements while maintaining active product status and full compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The TPC33AHM3_A/I is a direct functional equivalent to the obsolete TPC33AHM3/87A. Both parts are manufactured by Vishay General Semiconductor - Diodes Division and share identical electrical specifications and mechanical packaging. The substitute part maintains full automotive-grade compliance with AEC-Q101 qualification and ROHS3 certification.

The primary distinction is product status: TPC33AHM3/87A is obsolete, while TPC33AHM3_A/I is active. For new designs or ongoing production requiring TVS diode protection in the 28.2V standoff voltage class, TPC33AHM3_A/I is the appropriate selection. The substitute part is available in Tape & Reel (TR) packaging format, suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can TPC33AHM3_A/I be used as a direct replacement for TPC33AHM3/87A?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. The substitute part is the active equivalent for the obsolete original part number.

Q: Are there any differences in electrical performance between these parts?

A: No. Both parts have identical voltage ratings (28.2V reverse standoff, 31.4V breakdown minimum, 45.7V clamping maximum), current ratings (32.8A peak pulse), and power dissipation (1500W peak pulse).

Q: What is the difference in packaging between TPC33AHM3/87A and TPC33AHM3_A/I?

A: Both parts use the same TO-277A (SMPC) surface mount package. The substitute part is supplied in Tape & Reel (TR) format, which is standard for high-volume automated assembly. The original part packaging format is not specified in the provided data.

Q: Are both parts qualified for automotive applications?

A: Yes. Both parts carry automotive-grade classification and AEC-Q101 qualification, meeting automotive industry reliability and quality standards.

Q: What is the moisture sensitivity level for these parts?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.