P4KE6.8C-B Equivalent & Substitute Parts

Part Overview

The P4KE6.8C-B is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 5.8V reverse standoff voltage with an 11.03V maximum clamping voltage and 39A peak pulse current capability in a through-hole DO-204AL (DO-41) package. The part is classified as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

P4KE6.8C-B

Littelfuse Inc.In Stock: 1115P4KE6.8C-B Datasheet

Current PartRFQ

P4KE6.8CA

Taiwan Semiconductor CorporationIn Stock: 998P4KE6.8CA Datasheet

DirectRFQ

P4KE6.8CA-B

Littelfuse Inc.In Stock: 863P4KE6.8CA-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P4KE6.8C-B is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 5.8V
• Package / Case: DO-204AL (DO-41)
• Mounting Type: Through Hole
• Bidirectional Channels: 1
• Series: P4KE
• Operating Temperature Range: -55°C ~ 175°C (TJ)
• Power - Peak Pulse: 400W

The identified substitute parts maintain identical reverse standoff voltage, package configuration, and thermal operating range. Variations in clamping voltage and peak pulse current remain within the functional tolerance of the P4KE series design envelope. Both substitute parts are active products with current manufacturer support and full RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

Both P4KE6.8CA and P4KE6.8CA-B are suitable replacements for the obsolete P4KE6.8C-B based on electrical and mechanical compatibility within the P4KE series specification envelope.

P4KE6.8CA (Taiwan Semiconductor Corporation): Active product status with Tape & Reel packaging. ROHS3 compliant with REACH Unaffected designation. Clamping voltage of 10.5V and 40A peak pulse current provide equivalent protection performance.

P4KE6.8CA-B (Littelfuse Inc.): Active product status with Bulk packaging. ROHS3 compliant with REACH Unaffected designation. Maintains original manufacturer continuity with 10.5V clamping voltage and 39A peak pulse current matching the original design specification.

Selection between these alternatives depends on procurement requirements: Littelfuse P4KE6.8CA-B maintains single-source manufacturer continuity, while Taiwan Semiconductor P4KE6.8CA offers alternative sourcing with equivalent electrical performance.

Frequently Asked Questions (FAQ)

Q: Can P4KE6.8CA and P4KE6.8CA-B be used interchangeably with P4KE6.8C-B?

A: Yes. Both substitute parts maintain the critical parameters: 5.8V reverse standoff voltage, DO-204AL through-hole package, 400W peak pulse power rating, and -55°C to 175°C operating temperature range. Clamping voltage and peak pulse current variations fall within P4KE series design tolerance.

Q: What is the difference between P4KE6.8CA and P4KE6.8CA-B?

A: The primary differences are manufacturer and packaging format. P4KE6.8CA is supplied by Taiwan Semiconductor Corporation in Tape & Reel format, while P4KE6.8CA-B is supplied by Littelfuse Inc. in Bulk format. Electrical specifications are equivalent.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR) and Bulk packaging formats do not affect component electrical characteristics. Selection depends on assembly process requirements and procurement volume.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. P4KE6.8C-B, P4KE6.8CA, and P4KE6.8CA-B are all ROHS3 compliant.

Q: Why is the clamping voltage lower in the substitute parts?

A: The P4KE6.8CA and P4KE6.8CA-B feature 10.5V maximum clamping voltage compared to 11.03V in the original part. This variation remains within the P4KE series specification envelope and does not compromise protection performance for general-purpose applications.