P4KE13A Equivalent & Substitute Parts

Part Overview

The P4KE13A is a unidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 11.1V reverse standoff voltage, 18.2V maximum clamping voltage, and 400W peak pulse power rating in a through-hole DO-204AL (DO-41) axial package. The part maintains active product status with full ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits voltage and power rating variations within acceptable operational parameters.

Substiute Parts

P4KE13A

Littelfuse Inc.In Stock: 4782P4KE13A Datasheet

Current PartRFQ

1.5KE12A

Taiwan Semiconductor CorporationIn Stock: 304871.5KE12A Datasheet

MFR RecommendedRFQ

P4KE12A

Taiwan Semiconductor CorporationIn Stock: 30224P4KE12A Datasheet

MFR RecommendedRFQ

P6KE12A

Fairchild SemiconductorIn Stock: 3416P6KE12A Datasheet

MFR RecommendedRFQ

P6KE13A

Diotec SemiconductorIn Stock: 17380P6KE13A Datasheet

MFR RecommendedRFQ

SA10A

Taiwan Semiconductor CorporationIn Stock: 2322SA10A Datasheet

MFR RecommendedRFQ

SA11A

Taiwan Semiconductor CorporationIn Stock: 300315SA11A Datasheet

MFR RecommendedRFQ

P4KE13A-TP

Micro Commercial CoIn Stock: 6177P4KE13A-TP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P4KE13A is determined by the following electrical and mechanical criteria:

Primary Substitution Criteria:

• Unidirectional TVS diode topology (single channel)
• Voltage - Reverse Standoff (Typ): 10.2V to 11.1V
• Voltage - Clamping (Max) @ Ipp: 16.7V to 18.2V
• Current - Peak Pulse (10/1000µs): minimum 22.5A
• Power - Peak Pulse: minimum 400W
• Through-hole axial mounting configuration
• Operating temperature range: -55°C to 175°C or equivalent
• Active product status
• ROHS3 compliance

Package Compatibility: Substitutes may use DO-204AL (DO-41) or DO-204AC (DO-15) packages, both axial through-hole configurations suitable for identical PCB footprints with standard lead spacing.

The following parts meet these criteria and are classified as manufacturer-recommended equivalents or direct substitutes:

• P4KE13A-TP (Micro Commercial Co): Direct equivalent, identical electrical specifications
• SA11A (Taiwan Semiconductor Corporation): Equivalent voltage and clamping characteristics
• P6KE13A (Diotec Semiconductor): Equivalent voltage specifications with enhanced current rating
• SA10A (Taiwan Semiconductor Corporation): Lower voltage standoff, suitable for applications tolerating 10V nominal protection
• P4KE12A (Taiwan Semiconductor Corporation): Lower voltage variant for 10.2V standoff applications
• P6KE12A (Fairchild Semiconductor): Lower voltage variant with enhanced current and power ratings
• 1.5KE12A (Taiwan Semiconductor Corporation): Higher power rating variant for demanding pulse applications

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (No Design Changes Required):

P4KE13A-TP from Micro Commercial Co is a direct functional equivalent with identical electrical specifications, voltage ratings, current capacity, and power dissipation. This part maintains the same DO-204AL (DO-41) package footprint and is ROHS3 compliant with unlimited moisture sensitivity rating. Selection of this substitute requires no circuit modifications.

Voltage-Matched Substitutes (Same Protection Level):

SA11A and P6KE13A both maintain the 11.1V reverse standoff and 18.2V clamping voltage specifications of the P4KE13A, ensuring equivalent overvoltage protection thresholds. Both parts are ROHS3 compliant and active products. SA11A provides 28A peak pulse current and 500W power rating, while P6KE13A provides 34A peak pulse current and 600W power rating. Both use DO-204AC (DO-15) packages compatible with standard through-hole PCB layouts. Operating temperature ranges are -55°C to 175°C (SA11A) and -50°C to 175°C (P6KE13A).

Lower Voltage Variants (10.2V Standoff):

P4KE12A, P6KE12A, and 1.5KE12A operate at 10.2V reverse standoff voltage with 16.7V maximum clamping voltage. These parts are suitable for applications where lower protection thresholds are acceptable. P4KE12A maintains 400W power rating in DO-204AL (DO-41) package. P6KE12A provides 600W in DO-204AC (DO-15) package. 1.5KE12A provides 1500W in DO-201AA (DO-27) package for high-energy pulse applications. All three are ROHS3 compliant and active products.

Lower Voltage Variant (10V Standoff):

SA10A operates at 10V reverse standoff with 17V clamping voltage, providing 30A peak pulse current and 500W power rating in DO-204AC (DO-15) package. This part is ROHS3 compliant and active, with -55°C to 175°C operating range.

All recommended substitutes maintain through-hole axial mounting configuration, unidirectional TVS diode topology, and active product status. Selection should be based on specific circuit voltage protection requirements and available package footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can P4KE13A-TP be used as a direct replacement for P4KE13A?

A: Yes. P4KE13A-TP is a direct equivalent with identical voltage ratings (11.1V standoff, 18.2V clamping), current capacity (22.5A), power dissipation (400W), and package configuration (DO-204AL, DO-41). No circuit modifications are required.

Q: What is the difference between P4KE13A and SA11A?

A: Both parts share identical voltage specifications (11.1V standoff, 18.2V clamping). SA11A provides higher peak pulse current (28A vs. 22.5A) and power rating (500W vs. 400W). SA11A uses DO-204AC (DO-15) package instead of DO-204AL (DO-41), but both are standard through-hole axial configurations. SA11A is suitable when higher transient current capacity is required.

Q: Can I use P4KE12A instead of P4KE13A?

A: P4KE12A operates at lower voltage thresholds (10.2V standoff vs. 11.1V, 16.7V clamping vs. 18.2V). This part is suitable only if your circuit can tolerate lower protection voltage levels. It is not recommended as a substitute if the 11.1V protection threshold is a design requirement.

Q: What is the advantage of 1.5KE12A over P4KE13A?

A: 1.5KE12A provides significantly higher power dissipation (1500W vs. 400W) and peak pulse current (94A vs. 22.5A), making it suitable for high-energy transient suppression applications. It uses a larger DO-201AA (DO-27) package. This part is selected when circuit transient energy levels exceed the capacity of smaller packages.

Q: Are all substitute parts ROHS3 compliant?

A: All recommended substitutes except P6KE12A are explicitly listed as ROHS3 compliant. P6KE12A compliance status is not provided in the available data. Verify RoHS compliance documentation with the supplier if regulatory certification is required.

Q: Can I interchange DO-204AL (DO-41) and DO-204AC (DO-15) packages?

A: Both are through-hole axial packages with standard lead spacing suitable for identical PCB footprints. Physical dimensions differ slightly, but both fit standard component holes. Verify PCB layout clearances and lead bend radius requirements before substitution. Consult package datasheets for precise dimensional specifications.

Q: What operating temperature range should I verify for substitute selection?

A: The P4KE13A operates from -55°C to 175°C (TJ). Most substitutes maintain this range. P6KE13A and P6KE12A specify -50°C to 175°C, which is acceptable for most applications but may not be suitable if -55°C minimum temperature operation is required. Verify application temperature requirements before selection.

Q: How do I determine which substitute is appropriate for my circuit?

A: Identify your circuit's required protection voltage (reverse standoff voltage), expected transient current magnitude, and available power dissipation budget. Match these parameters to substitute candidates using the Parameter Comparison table. Verify package compatibility with your PCB layout. Confirm all parts meet your regulatory compliance requirements (ROHS3, REACH, etc.).