P6KE75C-B Equivalent & Substitute Parts

Part Overview

The P6KE75C-B is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 64.1V reverse standoff voltage with 108.15V maximum clamping voltage and 600W peak pulse power rating in a through-hole DO-204AC (DO-15) axial package. The part is currently listed as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement.

Substiute Parts

P6KE75C-B

Littelfuse Inc.In Stock: 796P6KE75C-B Datasheet

Current PartRFQ

P6KE75CA

Diotec SemiconductorIn Stock: 100249P6KE75CA Datasheet

DirectRFQ

P6KE75CA-B

Littelfuse Inc.In Stock: 16195P6KE75CA-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P6KE75C-B is determined by the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 64.1V
• Voltage - Clamping (Max) @ Ipp: Must not exceed 108.15V
• Power - Peak Pulse: 600W
• Bidirectional Channels: 1
• Mounting Type: Through Hole
• Package / Case: DO-204AC (DO-15) Axial

The identified substitute parts maintain the same reverse standoff voltage of 64.1V and peak pulse power rating of 600W. Both substitute parts are available in the same DO-204AC (DO-15) through-hole axial package configuration. Clamping voltage variations within the specified range are acceptable for general-purpose protection applications where the primary function is transient suppression at the defined standoff voltage.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are functionally equivalent to the P6KE75C-B for general-purpose transient voltage suppression applications. Selection between the two active alternatives should be based on the following criteria:

P6KE75CA-B (Littelfuse Inc.) is the preferred substitute when ROHS3 compliance is a design requirement. This part maintains identical operating temperature range (-55°C ~ 175°C) and RoHS certification status as the original P6KE75C-B, ensuring regulatory alignment for existing designs. Littelfuse manufacturing continuity also provides supply chain consistency.

P6KE75CA (Diotec Semiconductor) is available as an alternative when supply constraints exist for the Littelfuse variant. This part meets the same electrical specifications and package requirements, with the exception of a slightly reduced minimum operating temperature (-50°C vs. -55°C). RoHS compliance status differs from the original specification.

Both parts feature improved clamping voltage performance (103V vs. 108.15V), resulting in tighter voltage regulation during transient events. This represents an enhancement over the original design specification.

Frequently Asked Questions (FAQ)

Q: Can P6KE75CA and P6KE75CA-B be used interchangeably with P6KE75C-B?

A: Both parts are direct substitutes for the obsolete P6KE75C-B. They maintain the same 64.1V reverse standoff voltage, 600W peak pulse power rating, and DO-204AC (DO-15) through-hole axial package. Electrical performance is equivalent for general-purpose transient suppression applications.

Q: What is the significance of the different clamping voltages (108.15V vs. 103V)?

A: The substitute parts feature lower maximum clamping voltages (103V) compared to the original P6KE75C-B (108.15V). This represents improved voltage regulation performance during transient events, providing tighter suppression characteristics within the same power rating and package configuration.

Q: Are there temperature range differences between the substitutes?

A: P6KE75CA-B maintains the original operating range of -55°C ~ 175°C. P6KE75CA operates from -50°C ~ 175°C, representing a 5°C reduction at the lower temperature limit. For applications requiring full -55°C operation, P6KE75CA-B is the appropriate selection.

Q: Which substitute should be selected for RoHS-compliant designs?

A: P6KE75CA-B carries ROHS3 certification, matching the original P6KE75C-B compliance status. This part is the appropriate choice for designs with RoHS regulatory requirements.

Q: Are the packaging and pinout identical across all three parts?

A: All three parts use identical DO-204AC (DO-15) through-hole axial packaging. No PCB layout modifications or mechanical changes are required when substituting between these parts.