P6KE8.2HE3/73 Equivalent & Substitute Parts

Part Overview

The P6KE8.2HE3/73 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, designed for transient overvoltage protection in electronic circuits. This part operates with a reverse standoff voltage of 6.63V and a clamping voltage of 12.5V at peak pulse current, housed in a DO-204AC (DO-15) axial package. The part is currently listed as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	6.63	V
Voltage - Breakdown (Min)	7.38	V
Voltage - Clamping (Max) @ Ipp	12.5	V
Current - Peak Pulse (10/1000µs)	48	A
Power - Peak Pulse	600	W
Operating Temperature Range	-55 to 175	°C (TJ)
Package / Case	DO-204AC, DO-15, Axial	-
Mounting Type	Through Hole	-
Type	Zener	-
Unidirectional Channels	1	-

Substitute Part Grouping Explanation

Substitution of the P6KE8.2HE3/73 is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

Voltage - Reverse Standoff (Typ): 6.63V to 7.02V range
Voltage - Clamping (Max) @ Ipp: 12.1V to 12.5V range
Current - Peak Pulse (10/1000µs): minimum 48A
Power - Peak Pulse: 600W
Operating Temperature Range: -55°C to 175°C (TJ) or equivalent

Mechanical Compatibility Criteria:

Package / Case: DO-204AC, DO-15, or Axial
Mounting Type: Through Hole
Unidirectional Channels: 1
Type: Zener

All substitute parts listed maintain these parameters within acceptable engineering tolerances for direct functional replacement.

Parameter Comparison

Part Number	Manufacturer	Voltage - Reverse Standoff (Typ) [V]	Voltage - Clamping (Max) @ Ipp [V]	Current - Peak Pulse (10/1000µs) [A]	Power - Peak Pulse [W]	Operating Temperature [°C]	Package	Product Status
P6KE8.2HE3/73	Vishay General Semiconductor - Diodes Division	6.63	12.5	48	600	-55 to 175	DO-204AC (DO-15)	Obsolete
P6KE8.2AHE3/73	Vishay General Semiconductor - Diodes Division	7.02	12.1	49.6	600	-55 to 175	DO-204AC (DO-15)	Active
P6KE8.2A	Taiwan Semiconductor Corporation	7.02	12.1	52	600	-55 to 175	DO-204AC (DO-15)	Active
P6KE8.2A-AP	Micro Commercial Co	7.02	12.1	50	600	-55 to 175	DO-15	Active
P6KE8.2A-BP	Micro Commercial Co	7.02	12.1	50	600	-55 to 175	DO-15	Active
P6KE8.2A-TP	Micro Commercial Co	7.02	12.1	50	600	-55 to 175	DO-15	Active
P6KE8.2AE3/TR13	Microsemi Corporation	7.02	12.1	50	600	-65 to 150	Axial	Active

Engineering Selection Recommendations

Primary Recommendation: P6KE8.2A (Taiwan Semiconductor Corporation)

This part is the manufacturer-recommended substitute with active product status. It maintains all critical electrical parameters within specification and offers the highest peak pulse current rating (52A) among available options. Inventory availability is substantial (9316 pcs), ensuring supply chain continuity.

Secondary Recommendations:

P6KE8.2AHE3/73 (Vishay General Semiconductor - Diodes Division) provides direct compatibility from the original manufacturer with active status. This option maintains the same supplier device package (DO-204AC) as the original part.

P6KE8.2A-TP (Micro Commercial Co) offers active status with robust inventory (4737 pcs) and is supplied in Cut Tape packaging for automated assembly processes. Peak pulse current is rated at 50A.

Package Consideration:

P6KE8.2AE3/TR13 (Microsemi Corporation) is supplied in Axial package format. This part operates within a slightly reduced temperature range (-65°C to 150°C) compared to the original specification (-55°C to 175°C). Selection of this variant requires confirmation that the reduced upper temperature limit is acceptable for the application.

All recommended substitutes maintain RoHS3 compliance and REACH unaffected status consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can P6KE8.2A directly replace P6KE8.2HE3/73 in existing designs?

A: Yes. The P6KE8.2A maintains all critical electrical parameters within acceptable tolerances: reverse standoff voltage (7.02V vs. 6.63V), clamping voltage (12.1V vs. 12.5V), and peak pulse current (52A vs. 48A). Both are housed in DO-204AC (DO-15) axial through-hole packages. The substitute provides equal or superior performance characteristics.

Q: What is the difference between P6KE8.2A-TP, P6KE8.2A-AP, and P6KE8.2A-BP?

A: These designations indicate packaging and distribution format. The "-TP" suffix denotes Cut Tape packaging suitable for automated pick-and-place assembly. The "-AP" and "-BP" suffixes indicate Bulk packaging for manual assembly or reel-based distribution. Electrical specifications are identical across all three variants. Selection depends on assembly process requirements and procurement volume.

Q: Is the P6KE8.2AE3/TR13 suitable as a substitute?

A: The P6KE8.2AE3/TR13 is electrically compatible but operates within a reduced temperature range (-65°C to 150°C versus -55°C to 175°C). This part is suitable only if the application does not require operation above 150°C junction temperature. Confirm thermal requirements before selection.

Q: Why is the original P6KE8.2HE3/73 listed as obsolete?

A: Obsolescence indicates the part is no longer manufactured or supported by Vishay. Active substitutes from multiple manufacturers ensure continued design support and component availability for new production and field replacements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain RoHS3 compliance and REACH unaffected status, consistent with the original part's regulatory classification.

Q: What is the significance of the 10/1000µs pulse specification?

A: This specification defines the peak pulse current rating under a specific transient waveform: 10 microseconds rise time and 1000 microseconds pulse width. All substitute parts are rated for this standard transient profile, ensuring consistent overvoltage protection performance across equivalent devices.

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