P6KE300C Equivalent & Substitute Parts

Part Overview

The P6KE300C is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose voltage protection applications. This bidirectional zener diode operates in the DO-15 package with a reverse standoff voltage of 256V and peak pulse power rating of 600W. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

P6KE300C

Littelfuse Inc.In Stock: 872P6KE300C Datasheet

Current PartRFQ

P6KE300CA

Taiwan Semiconductor CorporationIn Stock: 9246P6KE300CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6KE300C is determined by the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 256V
• Voltage - Clamping (Max) @ Ipp: 434.7V maximum
• Power - Peak Pulse: 600W
• Bidirectional Channels: 1
• Mounting Type: Through Hole
• Package / Case: DO-15 (DO-204AC, Axial)
• Type: Zener, Bidirectional TVS Diode

The P6KE300CA qualifies as a direct substitute based on matching these parameters within the allowed electrical and mechanical specifications for this product category.

Parameter Comparison

Engineering Selection Recommendations

The P6KE300CA is a qualified substitute for the obsolete P6KE300C based on electrical parameter equivalence and regulatory compliance. Both components are ROHS3 compliant and share identical reverse standoff voltage (256V), peak pulse power rating (600W), and package configuration (DO-15 through-hole axial).

The P6KE300CA is currently in active production status with confirmed inventory availability, whereas the P6KE300C is obsolete. The substitute part exhibits a clamping voltage of 414V compared to the original 434.7V, representing a 4.8% reduction within acceptable engineering tolerance for TVS diode applications. The breakdown voltage minimum of 285V on the substitute is 5.6% higher than the original 270V specification, which remains within the reverse standoff voltage window of 256V and does not compromise circuit protection performance.

Frequently Asked Questions (FAQ)

Q: Can the P6KE300CA be used as a direct replacement for P6KE300C in existing designs?

A: Yes. Both components share identical reverse standoff voltage (256V), peak pulse power rating (600W), bidirectional channel configuration (1), and DO-15 through-hole package. The electrical parameters fall within acceptable substitution tolerances for TVS diode applications.

Q: What is the difference in clamping voltage between these parts?

A: The P6KE300C specifies a maximum clamping voltage of 434.7V at peak pulse current, while the P6KE300CA specifies 414V. This 20.7V difference represents a 4.8% reduction and does not affect circuit protection capability within standard TVS diode application parameters.

Q: Are both parts RoHS compliant?

A: Yes. Both the P6KE300C and P6KE300CA are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing and use.

Q: What is the packaging difference between these parts?

A: Both components use identical DO-15 (DO-204AC) through-hole axial packaging. No mechanical or board-level modifications are required for substitution.

Q: Why is the P6KE300C listed as obsolete?

A: The P6KE300C is classified as obsolete by Littelfuse Inc. The P6KE300CA, manufactured by Taiwan Semiconductor Corporation, is in active production and represents the current equivalent component for this voltage and power rating class.

Q: What is the operating temperature range for the substitute part?

A: The P6KE300CA operating temperature range is not specified in the provided data. The original P6KE300C operates from -55°C to 175°C (TJ). Verify operating temperature requirements with the component supplier for critical thermal applications.