P6KE12C-B Equivalent & Substitute Parts

Part Overview

The P6KE12C-B is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 10.2V reverse standoff voltage with a 17.54V maximum clamping voltage and 600W peak pulse power rating in a through-hole DO-204AC (DO-15) axial package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

P6KE12C-B

Littelfuse Inc.In Stock: 878P6KE12C-B Datasheet

Current PartRFQ

P6KE12CA

Taiwan Semiconductor CorporationIn Stock: 25662P6KE12CA Datasheet

DirectRFQ

P6KE12CA-B

Littelfuse Inc.In Stock: 22161P6KE12CA-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P6KE12C-B are identified based on the following critical electrical and mechanical parameters that define functional equivalence:

Electrical Compatibility Criteria:

• Voltage - Reverse Standoff (Typ): 10.2V (exact match required)
• Voltage - Breakdown (Min): within acceptable tolerance range
• Power - Peak Pulse: 600W (minimum requirement)
• Type: Zener diode, bidirectional, single channel

Mechanical Compatibility Criteria:

• Mounting Type: Through Hole
• Package / Case: DO-204AC, DO-15, or Axial configuration
• Bidirectional Channels: 1

Regulatory Compliance:

• RoHS3 Compliant status maintained

The identified substitutes P6KE12CA and P6KE12CA-B meet all electrical and mechanical requirements while maintaining regulatory compliance. Both alternatives feature the same 10.2V reverse standoff voltage, 600W peak pulse power rating, and compatible through-hole axial packaging. The primary differences lie in clamping voltage specifications and peak pulse current ratings, which remain within acceptable operational parameters for general-purpose transient suppression applications.

Parameter Comparison

Engineering Selection Recommendations

Both P6KE12CA and P6KE12CA-B are active production alternatives to the obsolete P6KE12C-B. Selection between these substitutes should be based on the following factors:

P6KE12CA (Taiwan Semiconductor Corporation):

• Active product status with established supply chain
• Available in Cut Tape (CT) packaging for automated assembly processes
• ROHS3 compliant with REACH unaffected status
• 36A peak pulse current rating

P6KE12CA-B (Littelfuse Inc.):

• Active product status with established supply chain
• Available in Bulk packaging for manual assembly or high-volume procurement
• ROHS3 compliant with REACH unaffected status
• Specified operating temperature range: -55°C ~ 175°C (TJ)
• 36.5A peak pulse current rating
• Same manufacturer as original part (Littelfuse Inc.)

Both substitutes maintain the critical 10.2V reverse standoff voltage and 600W peak pulse power rating required for functional equivalence. The P6KE12CA-B offers the advantage of manufacturer continuity with Littelfuse Inc. and explicit temperature specification, while the P6KE12CA provides alternative sourcing through Taiwan Semiconductor Corporation with automated assembly-friendly packaging.

Frequently Asked Questions (FAQ)

Q: Can P6KE12CA or P6KE12CA-B be used as direct replacements for P6KE12C-B?

A: Yes. Both substitutes maintain the critical electrical parameters: 10.2V reverse standoff voltage, 600W peak pulse power rating, and compatible through-hole DO-15 axial packaging. The lower clamping voltage (16.7V vs. 17.54V) and higher peak pulse current ratings (36A/36.5A) represent improved performance characteristics within the same functional class.

Q: What is the difference between P6KE12CA and P6KE12CA-B?

A: The primary differences are manufacturer (Taiwan Semiconductor Corporation vs. Littelfuse Inc.), packaging format (Cut Tape vs. Bulk), and peak pulse current specification (36A vs. 36.5A). Both maintain identical reverse standoff voltage and power ratings. P6KE12CA-B includes explicit operating temperature specification (-55°C ~ 175°C).

Q: Are there packaging compatibility concerns when substituting?

A: No. All three parts use the same through-hole DO-204AC (DO-15) axial package configuration. Packaging format differences (Cut Tape vs. Bulk) relate to supply and handling methods, not physical component dimensions or pin configuration.

Q: Does the lower clamping voltage of the substitutes affect circuit protection?

A: No. The 16.7V clamping voltage of the substitutes is lower than the original 17.54V, which represents improved transient suppression performance. Both values remain within acceptable operating parameters for general-purpose TVS applications with 10.2V standoff voltage.

Q: Are the substitutes RoHS compliant?

A: Yes. Both P6KE12CA and P6KE12CA-B are ROHS3 compliant, matching the compliance status of the original P6KE12C-B.

Q: Why is the original P6KE12C-B classified as obsolete?

A: Product obsolescence reflects manufacturer discontinuation decisions. Active alternatives with equivalent or superior electrical characteristics are available through both Littelfuse Inc. and Taiwan Semiconductor Corporation.