P4KE13-B Equivalent & Substitute Parts

Part Overview

The P4KE13-B is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Littelfuse, designed for general-purpose overvoltage protection applications. This component features a 11.1V reverse standoff voltage with 19.11V maximum clamping voltage and 22.5A peak pulse current capability in a through-hole DO-204AL (DO-41) axial package. The part is currently classified as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

P4KE13-B

LittelfuseIn Stock: 1162P4KE13-B Datasheet

Current PartRFQ

P4KE13A

Taiwan Semiconductor CorporationIn Stock: 856P4KE13A Datasheet

DirectRFQ

P4KE13A-B

Littelfuse Inc.In Stock: 1191P4KE13A-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P4KE13-B is determined by strict alignment across the following critical parameters:

• Voltage Rating Class: Reverse standoff voltage of 11.1V and breakdown voltage minimum of 11.75V define the protection threshold
• Clamping Performance: Maximum clamping voltage must not exceed 19.11V to maintain circuit protection integrity
• Current Handling: Peak pulse current capability must support 22.5A minimum
• Package Compatibility: DO-204AL (DO-41) axial through-hole mounting is mandatory for PCB fit
• Thermal Range: Operating temperature range of -55°C to 175°C (TJ) must be maintained
• Device Type: Unidirectional Zener TVS diode configuration

The identified substitute parts P4KE13A and P4KE13A-B share the same base product number (P4KE13) and maintain electrical compatibility within the specified parameter envelope while offering active product status.

Parameter Comparison

Engineering Selection Recommendations

Both P4KE13A and P4KE13A-B are qualified substitutes for the obsolete P4KE13-B based on electrical parameter alignment and active product status.

P4KE13A (Taiwan Semiconductor Corporation): This substitute maintains all critical voltage and current specifications within acceptable tolerance. It is supplied in Tape & Reel (TR) packaging and carries ROHS3 compliance with REACH Unaffected status. This option is suitable for high-volume production environments requiring automated assembly.

P4KE13A-B (Littelfuse Inc.): This substitute is supplied by the original manufacturer in Bulk packaging format. It maintains identical electrical specifications and ROHS3 compliance with REACH Unaffected status. This option provides continuity with the original manufacturer while offering active product availability.

Both substitutes feature improved clamping voltage performance (18.2V versus 19.11V), providing enhanced circuit protection margins. Selection between these options should be based on procurement requirements, packaging format compatibility with assembly processes, and supplier availability.

Frequently Asked Questions (FAQ)

Q: Can P4KE13A or P4KE13A-B be used as direct replacements for P4KE13-B?

A: Yes. Both substitute parts maintain the same reverse standoff voltage (11.1V), identical operating temperature range (-55 to 175°C TJ), and compatible DO-204AL (DO-41) through-hole package. The lower clamping voltage (18.2V versus 19.11V) provides improved protection performance.

Q: What is the difference between P4KE13A and P4KE13A-B?

A: The primary differences are manufacturer and packaging format. P4KE13A is manufactured by Taiwan Semiconductor Corporation and supplied in Tape & Reel format. P4KE13A-B is manufactured by Littelfuse Inc. and supplied in Bulk format. Electrical specifications are equivalent.

Q: Are there packaging considerations when switching from P4KE13-B to these substitutes?

A: Yes. P4KE13A arrives in Tape & Reel (TR) packaging suitable for automated pick-and-place assembly. P4KE13A-B arrives in Bulk packaging suitable for manual assembly or tube-based handling. Verify compatibility with your assembly process before procurement.

Q: Do the substitute parts meet the same compliance standards?

A: Yes. Both P4KE13A and P4KE13A-B are ROHS3 compliant. P4KE13A carries REACH Unaffected status, and P4KE13A-B carries REACH Unaffected status. Both maintain EAR99 ECCN classification and 8541.10.0080 HTSUS code alignment with the original part.

Q: What is the significance of the improved clamping voltage in the substitutes?

A: The substitute parts feature 18.2V maximum clamping voltage compared to 19.11V in the original P4KE13-B. This lower clamping voltage provides tighter voltage regulation and enhanced transient suppression performance, making these substitutes functionally superior for overvoltage protection applications.