TPC30AHM3/86A Equivalent & Substitute Parts

Part Overview

The TPC30AHM3/86A 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 25.6V reverse standoff voltage and 41.4V maximum clamping voltage. The part is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	TPC30AHM3/86A
Manufacturer	Vishay General Semiconductor - Diodes Division
Category	Transient Voltage Suppressors (TVS)
Type	Zener
Unidirectional Channels	1
Voltage - Reverse Standoff (Typ)	25.6V
Voltage - Breakdown (Min)	28.5V
Voltage - Clamping (Max) @ Ipp	41.4V
Current - Peak Pulse (10/1000µs)	36.2A
Power - Peak Pulse	1500W
Operating Temperature Range	-65°C to 185°C (TJ)
Grade	Automotive
Qualification	AEC-Q101
Mounting Type	Surface Mount
Package / Case	TO-277, 3-PowerDFN
Supplier Device Package	TO-277A (SMPC)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the TPC30AHM3/86A is determined by strict equivalence across the following critical parameters:

Voltage Rating: Reverse standoff voltage of 25.6V, breakdown voltage minimum of 28.5V, and clamping voltage maximum of 41.4V
Current Handling: Peak pulse current of 36.2A at 10/1000µs pulse width
Power Dissipation: Peak pulse power rating of 1500W
Package Compatibility: TO-277A (SMPC) surface mount package
Electrical Configuration: Unidirectional, single-channel Zener TVS diode
Environmental Compliance: Automotive grade with AEC-Q101 qualification, ROHS3 compliance, and REACH unaffected status
Operating Temperature: -65°C to 185°C junction temperature range

The substitute part TPC30AHM3_A/H maintains identical electrical and mechanical specifications while differing only in product status (Active vs. Obsolete) and packaging format (Tape & Reel vs. standard packaging).

Parameter Comparison

Parameter	TPC30AHM3/86A	TPC30AHM3_A/H
Manufacturer	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Category	Transient Voltage Suppressors (TVS)	Transient Voltage Suppressors (TVS)
Type	Zener	Zener
Unidirectional Channels	1	1
Voltage - Reverse Standoff (Typ)	25.6V	25.6V
Voltage - Breakdown (Min)	28.5V	28.5V
Voltage - Clamping (Max) @ Ipp	41.4V	41.4V
Current - Peak Pulse (10/1000µs)	36.2A	36.2A
Power - Peak Pulse	1500W	1500W
Operating Temperature Range	-65°C to 185°C (TJ)	-65°C to 185°C (TJ)
Grade	Automotive	Automotive
Qualification	AEC-Q101	AEC-Q101
Mounting Type	Surface Mount	Surface Mount
Package / Case	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN
Supplier Device Package	TO-277A (SMPC)	TO-277A (SMPC)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Obsolete	Active
Packaging Format	Standard	Tape & Reel (TR)

Engineering Selection Recommendations

The TPC30AHM3_A/H is a direct functional equivalent to the TPC30AHM3/86A. Selection of the substitute part is based on the following engineering criteria:

Product Status: The original part is classified as obsolete, while TPC30AHM3_A/H maintains active status with Vishay, ensuring continued availability and manufacturing support.

Compliance and Certification: Both parts carry identical automotive-grade qualification (AEC-Q101), ROHS3 compliance, and REACH unaffected status, meeting all regulatory requirements for automotive and industrial applications.

Electrical and Mechanical Equivalence: All critical parameters—voltage ratings, current handling, power dissipation, operating temperature range, and package specifications—are identical between the two parts.

Packaging Consideration: The substitute part is supplied in Tape & Reel (TR) format, which is standard for high-volume production environments. If alternative packaging formats are required, contact the manufacturer for availability.

Frequently Asked Questions (FAQ)

Q: Can TPC30AHM3_A/H be used as a direct replacement for TPC30AHM3/86A?

A: Yes. Both parts are electrically and mechanically identical. The substitute part maintains the same voltage ratings (25.6V reverse standoff, 41.4V clamping), current handling (36.2A peak pulse), power dissipation (1500W), package type (TO-277A SMPC), and automotive qualifications (AEC-Q101).

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

A: The primary differences are product status and packaging format. TPC30AHM3/86A is obsolete, while TPC30AHM3_A/H is active. The substitute is supplied in Tape & Reel format, which is standard for production procurement.

Q: Are there any compatibility concerns with the TO-277A (SMPC) package?

A: No. Both parts use the identical TO-277A (SMPC) surface mount package. PCB footprints, solder reflow profiles, and handling procedures remain unchanged.

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

A: No. Tape & Reel is a standard packaging and storage format for surface mount components. It does not affect electrical performance, reliability, or qualification status.

Q: Are both parts suitable for automotive applications?

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

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

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

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