P4KE10C Equivalent & Substitute Parts

Part Overview

The P4KE10C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection in through-hole applications. This component operates with a reverse standoff voltage of 8.55V and provides 400W peak pulse power dissipation in a DO-204AL (DO-41) axial package. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

P4KE10C

Littelfuse Inc.In Stock: 961P4KE10C Datasheet

Current PartRFQ

P4KE10CA

Taiwan Semiconductor CorporationIn Stock: 936P4KE10CA Datasheet

DirectRFQ

P6KE10CA

Fairchild SemiconductorIn Stock: 9077P6KE10CA Datasheet

MFR RecommendedRFQ

P4KE10CA-G

Comchip TechnologyIn Stock: 821P4KE10CA-G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P4KE10C are qualified based on the following electrical and mechanical parameters:

• Reverse standoff voltage within 8.5V to 8.6V range
• Voltage breakdown minimum between 9V and 9.5V
• Voltage clamping maximum between 14.5V and 15.23V
• Peak pulse current between 27.59A and 29A
• Peak pulse power of 400W or greater
• Through-hole axial mounting configuration
• Operating temperature range supporting -55°C minimum and 175°C maximum or equivalent
• Bidirectional single-channel TVS diode topology
• General-purpose application classification

Parts meeting these criteria maintain functional equivalence for overvoltage protection circuits while accommodating minor variations in electrical performance within acceptable design tolerances.

Parameter Comparison

Engineering Selection Recommendations

P4KE10CA (Taiwan Semiconductor Corporation): This part maintains identical reverse standoff voltage (8.55V) and operating temperature range (-55°C ~ 175°C) as the P4KE10C. It is ROHS3 compliant and currently in active production status. The clamping voltage is reduced to 14.5V with peak pulse current of 29A, both within acceptable substitution parameters. Packaging is DO-204AL (DO-41) axial, matching the original specification.

P6KE10CA (Fairchild Semiconductor): This part offers enhanced performance with 600W peak pulse power and 43A peak pulse current, providing design margin for higher transient stress conditions. The reverse standoff voltage (8.5V) and clamping voltage (14.5V) remain within specification. Operating temperature minimum is -50°C, which is 5°C higher than the original part. Package is DO-204AC (DO-15) axial, which is mechanically compatible with DO-41 footprints in most through-hole applications. This part is active in production.

P4KE10CA-G (Comchip Technology): This part provides close electrical equivalence with reverse standoff voltage of 8.6V and clamping voltage of 14.5V. Peak pulse current is 27.59A, slightly lower than the original 28.3A. Operating temperature range is -55°C ~ 150°C, with the upper limit 25°C lower than the original specification. ROHS3 compliant and currently in active production. Package is DO-41 axial.

Frequently Asked Questions (FAQ)

Q: Can P4KE10CA directly replace P4KE10C in existing designs?

A: Yes. The P4KE10CA maintains the same reverse standoff voltage (8.55V), operating temperature range (-55°C ~ 175°C), and package configuration (DO-204AL DO-41). Electrical performance differences are within acceptable substitution tolerances for general-purpose TVS applications.

Q: What is the primary difference between P4KE10CA and P6KE10CA?

A: The P6KE10CA provides higher peak pulse power (600W vs. 400W) and peak pulse current (43A vs. 29A), offering enhanced transient protection capability. The package is DO-204AC (DO-15) instead of DO-204AL (DO-41), though both are axial through-hole configurations. The P6KE10CA minimum operating temperature is -50°C versus -55°C for P4KE10CA.

Q: Is P4KE10CA-G suitable for applications requiring -55°C operation?

A: Yes, P4KE10CA-G supports -55°C minimum operating temperature. However, the maximum operating temperature is 150°C, which is 25°C lower than the original P4KE10C specification of 175°C. Applications requiring sustained operation above 150°C should use P4KE10CA or P6KE10CA.

Q: Are all substitute parts RoHS compliant?

A: P4KE10CA and P4KE10CA-G are both ROHS3 compliant. RoHS compliance status for P6KE10CA is not specified in the provided data.

Q: Can P6KE10CA be used in space-constrained PCB layouts designed for DO-41 packages?

A: P6KE10CA uses the DO-204AC (DO-15) package, which has different physical dimensions than DO-41. Verify PCB footprint compatibility before substitution. Both are axial through-hole packages, but dimensional differences may affect board layout.

Q: What inventory availability exists for these substitute parts?

A: P4KE10CA has 898 pcs in stock, P6KE10CA has 9045 pcs in stock, and P4KE10CA-G has 727 pcs in stock. The original P4KE10C has 868 pcs available but is obsolete.