P6KE68A-TP Equivalent & Substitute Parts

Part Overview

The P6KE68A-TP is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose transient voltage protection applications. This through-hole component operates with a reverse standoff voltage of 58.1V and provides 92V maximum clamping voltage at peak pulse current. The part is Active status and RoHS3 compliant, making it suitable for modern electronic circuit protection requirements. Equivalent and substitute parts are identified when electrical parameters and mechanical compatibility align within acceptable tolerances for the application.

Substiute Parts

P6KE68A-TP

Micro Commercial CoIn Stock: 1412P6KE68A-TP Datasheet

Current PartRFQ

P6KE68A

Fairchild SemiconductorIn Stock: 8738P6KE68A Datasheet

DirectRFQ

P6KE68A-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 4803P6KE68A-E3/54 Datasheet

DirectRFQ

P6KE6.8A-B

Littelfuse Inc.In Stock: 1192P6KE6.8A-B Datasheet

SimilarRFQ

TP6KE68A

LittelfuseIn Stock: 2435TP6KE68A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of TVS diodes is determined by matching the following critical electrical parameters: Voltage - Reverse Standoff (Typ), Voltage - Breakdown (Min), Voltage - Clamping (Max) @ Ipp, Current - Peak Pulse (10/1000µs), and Power - Peak Pulse. Mechanical compatibility requires identical or equivalent package designations (DO-204AC / DO-15 axial through-hole). All substitute parts must maintain the same unidirectional channel configuration (1 channel) and Zener diode type classification.

The substitute parts are grouped into two categories:

Direct Equivalents: Parts with identical or negligibly different electrical specifications across all critical parameters, suitable for direct replacement without circuit redesign.

Similar Parts: Parts with variations in peak pulse current or other secondary parameters that may require application-level verification but share the same voltage protection characteristics and package form factor.

Parameter Comparison

Engineering Selection Recommendations

P6KE68A (Fairchild Semiconductor): Direct electrical equivalent with 6.8A peak pulse current specification. Operates across -50 to 175°C temperature range, which is narrower than the main part at the lower bound. Suitable for applications where the -50°C minimum temperature meets system requirements. Available in Bulk packaging.

P6KE68A-E3/54 (Vishay General Semiconductor - Diodes Division): Direct electrical equivalent with 6.5A peak pulse current matching the main part specification. Operates across -55 to 175°C temperature range, identical to the main part. RoHS3 compliant. Supplied in TransZorb® series designation. Available in Cut Tape packaging. Fully compatible for direct substitution.

TP6KE68A (Littelfuse): Direct electrical equivalent with 6.6A peak pulse current specification. Operates across -55 to 175°C temperature range, identical to the main part. RoHS3 compliant and AEC-Q101 qualified for automotive applications. Available in Cut Tape packaging. Suitable for applications requiring automotive-grade qualification.

P6KE6.8A-B (Littelfuse Inc.): Similar part with significantly different voltage and current specifications (5.8V standoff, 10.5V clamping, 58.1A peak pulse). Not suitable as a direct substitute due to incompatible electrical parameters. Applicable only to different circuit protection requirements.

All substitute parts maintain identical package form factors (DO-204AC / DO-15 axial through-hole), unidirectional channel configuration, and Zener diode type classification. Selection should be based on temperature range requirements, packaging preference, and any automotive qualification mandates.

Frequently Asked Questions (FAQ)

Q: Can P6KE68A-E3/54 replace P6KE68A-TP directly? A: Yes. Both parts share identical voltage specifications (58.1V standoff, 92V clamping), matching peak pulse current (6.5A), and identical operating temperature range (-55 to 175°C). Both are RoHS3 compliant and use DO-204AC / DO-15 through-hole packages. Direct substitution is supported.

Q: What is the difference between P6KE68A (Fairchild) and P6KE68A-TP? A: The Fairchild part has a narrower operating temperature range (-50 to 175°C versus -55 to 175°C) and slightly higher peak pulse current specification (6.8A versus 6.5A). It is suitable for applications where the -50°C minimum temperature is acceptable. Voltage specifications are identical.

Q: Is TP6KE68A suitable for automotive applications? A: Yes. TP6KE68A carries AEC-Q101 automotive qualification and is RoHS3 compliant. It matches all critical electrical parameters of the main part and operates across the same temperature range (-55 to 175°C). It is suitable for automotive circuit protection applications.

Q: Why is P6KE6.8A-B listed as a similar part but not recommended as a substitute? A: P6KE6.8A-B has fundamentally different electrical specifications: 5.8V reverse standoff voltage and 10.5V clamping voltage, compared to 58.1V and 92V respectively. Peak pulse current is also significantly higher at 58.1A. This part is designed for different voltage protection requirements and cannot replace the P6KE68A-TP in 58V protection circuits.

Q: Are all substitute parts available in the same packaging options? A: All substitute parts use DO-204AC / DO-15 axial through-hole packages. Packaging format (Cut Tape versus Bulk) varies by manufacturer and supplier. Verify packaging availability with your component supplier based on procurement requirements.

Q: What compliance certifications apply to all substitute parts? A: All substitute parts are RoHS3 compliant and REACH unaffected. TP6KE68A additionally carries AEC-Q101 automotive qualification. All parts are classified under ECCN EAR99 and HTSUS 8541.10.0080.