P6KE82 Equivalent & Substitute Parts

Part Overview

The P6KE82 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse, designed for general-purpose transient voltage protection in through-hole applications. This component operates with a reverse standoff voltage of 70.1V and provides peak pulse power dissipation of 600W. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity.

Substiute Parts

P6KE82

LittelfuseIn Stock: 880P6KE82 Datasheet

Current PartRFQ

P6KE82A

Fairchild SemiconductorIn Stock: 7294P6KE82A Datasheet

DirectRFQ

SA70A

Taiwan Semiconductor CorporationIn Stock: 890SA70A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P6KE82 is determined by the following critical parameters:

• Unidirectional channel configuration (1 channel required)
• Reverse standoff voltage range (70V nominal)
• Voltage clamping characteristics (113V–118.65V @ Ipp)
• Through-hole mounting in DO-204AC (DO-15) axial package
• Operating temperature range (-55°C to 175°C)
• RoHS3 compliance and EAR99 export classification

The substitute parts listed below meet these core electrical and mechanical requirements, enabling direct functional replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the P6KE82, the following selection criteria apply:

SA70A (Taiwan Semiconductor Corporation) is the primary recommended substitute. This part maintains active product status, meets ROHS3 compliance requirements, and shares identical operating temperature specifications (-55°C to 175°C). The reverse standoff voltage (70V) and clamping voltage (113V) align with the original design parameters. Peak pulse power is rated at 500W, which represents a 16.7% reduction from the original 600W specification; this difference must be evaluated against actual circuit transient energy requirements.

P6KE82A (Fairchild Semiconductor) is listed as an available substitute with active product status and EAR99 classification. However, complete electrical parameter data is not provided in the available documentation, limiting direct comparison to the original P6KE82 specification.

Both substitute parts are packaged in DO-204AC (DO-15) axial configuration, enabling mechanical compatibility with existing through-hole PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the SA70A directly replace the P6KE82 in all applications?

A: The SA70A meets the core electrical and mechanical requirements for substitution, including reverse standoff voltage (70V), clamping voltage (113V), operating temperature range (-55°C to 175°C), and DO-204AC package configuration. However, the peak pulse power rating is 500W versus the original 600W. Substitution is valid only if circuit transient energy does not exceed the SA70A's 500W dissipation capability.

Q: What is the significance of the DO-204AC (DO-15) package designation?

A: DO-204AC and DO-15 are equivalent designations for the same axial through-hole diode package. Both substitute parts use this package, ensuring mechanical and pin compatibility with PCB layouts designed for the P6KE82.

Q: Are both substitute parts RoHS3 compliant?

A: The SA70A is confirmed ROHS3 compliant. The P6KE82A's RoHS status is not specified in available documentation. Verify RoHS compliance requirements with the component supplier before final selection.

Q: What is the difference between the P6KE82 and P6KE82A part numbers?

A: The P6KE82A is a variant designation, typically indicating a revision or manufacturer-specific version. Complete electrical parameter data for the P6KE82A is not provided in the available documentation. Contact the Fairchild Semiconductor distributor for detailed specifications before selection.

Q: How do I determine which substitute is appropriate for my design?

A: Evaluate the following: (1) Peak transient energy in your circuit—if it exceeds 500W, the SA70A may not be suitable; (2) RoHS compliance requirements for your end application; (3) Supplier availability and lead time; (4) Cost considerations. The SA70A is recommended as the primary choice based on complete parameter documentation and active product status.