TPC22AHM3/86A Equivalent & Substitute Parts

Part Overview

The TPC22AHM3/86A is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is designed for transient overvoltage protection in surface mount applications, featuring a 18.8V reverse standoff voltage and 30.6V maximum clamping voltage. The part is classified as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement.

Substiute Parts

TPC22AHM3/86A

Vishay General Semiconductor - Diodes DivisionIn Stock: 1019TPC22AHM3/86A Datasheet

Current PartRFQ

TPC22AHM3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 853TPC22AHM3_A/H Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPC22AHM3/86A is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 18.8V
• Voltage - Breakdown (Min): 20.9V
• Voltage - Clamping (Max) @ Ipp: 30.6V
• Current - Peak Pulse (10/1000µs): 49A
• Power - Peak Pulse: 1500W
• Unidirectional channel configuration
• Surface mount TO-277A (SMPC) package
• Automotive grade with AEC-Q101 qualification

The substitute part TPC22AHM3_A/H maintains identical electrical specifications and package configuration. The primary distinction is packaging format: the original part number references a specific packaging variant, while the substitute is supplied in Tape & Reel (TR) format. Both parts share the same base product number (TPC22) and series designation (PAR®, eSMP®).

Parameter Comparison

Engineering Selection Recommendations

The TPC22AHM3_A/H is a direct functional equivalent to the obsolete TPC22AHM3/86A. Both parts are manufactured by Vishay and carry identical electrical and thermal specifications. The substitute part maintains active product status, ensuring continued availability and manufacturing support.

Selection of TPC22AHM3_A/H is appropriate for applications requiring:

• 18.8V reverse standoff voltage protection
• 30.6V maximum clamping voltage
• 49A peak pulse current handling
• Automotive-grade reliability with AEC-Q101 qualification
• Surface mount TO-277A (SMPC) package integration
• ROHS3 compliance and unlimited moisture sensitivity rating

The transition from the obsolete part number to the active equivalent involves no electrical performance degradation. The packaging format difference (Tape & Reel for the substitute) is a procurement and assembly consideration rather than a functional limitation.

Frequently Asked Questions (FAQ)

Q: Are the electrical characteristics identical between TPC22AHM3/86A and TPC22AHM3_A/H?

A: Yes. Both parts share identical voltage ratings (18.8V reverse standoff, 20.9V breakdown minimum, 30.6V clamping maximum), current specifications (49A peak pulse), power dissipation (1500W), and operating temperature range (-65°C to 185°C).

Q: What is the difference between these part numbers?

A: The primary difference is product status and packaging format. TPC22AHM3/86A is obsolete, while TPC22AHM3_A/H is active. The substitute is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly.

Q: Can TPC22AHM3_A/H be used as a direct replacement in existing designs?

A: Yes. The substitute part is electrically and mechanically equivalent. Both use the same TO-277A (SMPC) package and maintain identical performance specifications across all rated parameters.

Q: Are both parts automotive-qualified?

A: Yes. Both TPC22AHM3/86A and TPC22AHM3_A/H carry automotive grade classification with AEC-Q101 qualification, ROHS3 compliance, and MSL 1 (Unlimited) moisture sensitivity rating.

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

A: No. Tape & Reel is a packaging and delivery format for automated assembly. The component itself and its electrical performance remain unchanged.