5KP15C Equivalent & Substitute Parts

Part Overview

The 5KP15C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 15V reverse standoff voltage rating and 5000W peak pulse power handling capability in a through-hole P600 axial package. The 5KP15C is currently listed as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and procurement.

Substiute Parts

5KP15C

Littelfuse Inc.In Stock: 8715KP15C Datasheet

Current PartRFQ

5KP15CA

Littelfuse Inc.In Stock: 37845KP15CA Datasheet

DirectRFQ

SLD15-018-B

Littelfuse Inc.In Stock: 873SLD15-018-B Datasheet

MFR RecommendedRFQ

5KP15CA-TP

Micro Commercial CoIn Stock: 13485KP15CA-TP Datasheet

MFR RecommendedRFQ

5KP15CE3/TR13

Microchip TechnologyIn Stock: 9645KP15CE3/TR13 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 5KP15C is determined by the following critical parameters that must remain consistent across all equivalent parts:

• Voltage - Reverse Standoff (Typ): 15V
• Power - Peak Pulse: 5000W (5kW)
• Bidirectional Channels: 1
• Mounting Type: Through Hole
• Package / Case: P600 or R-6 Axial
• Operating Temperature Range: -55°C ~ 175°C (TJ)
• RoHS Status: ROHS3 Compliant

The substitute parts identified below maintain these core electrical and mechanical specifications. Variations in voltage clamping characteristics and peak pulse current are within acceptable tolerance ranges for general-purpose TVS applications and do not preclude functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain active product status with ROHS3 compliance, providing long-term availability and regulatory alignment. The 5KP15CA and SLD15-018-B are direct Littelfuse equivalents with identical P600 package geometry and established supply chains. The 5KP15CA-TP from Micro Commercial Co uses an R-6 axial package, which is mechanically compatible with P600 footprints in through-hole applications. The 5KP15CE3/TR13 from Microchip Technology offers the highest clamping voltage specification at 26.9V, suitable for applications requiring additional margin.

Selection should prioritize parts with matching package designations (P600) for direct board-level compatibility. The SLD15-018-B includes AEC-Q101 automotive qualification, appropriate for applications requiring automotive-grade reliability. All substitutes maintain the 5000W peak pulse power rating and -55°C to 175°C operating temperature range of the original 5KP15C.

Frequently Asked Questions (FAQ)

Q: Can the 5KP15CA directly replace the 5KP15C?

A: Yes. The 5KP15CA maintains identical reverse standoff voltage (15V), peak pulse power (5000W), operating temperature range (-55°C to 175°C), and P600 axial package geometry. The primary difference is active product status and improved availability. Voltage clamping at 24.4V is within acceptable tolerance for general-purpose TVS applications.

Q: What is the difference between P600 and R-6 packages?

A: Both are through-hole axial packages suitable for PCB mounting. P600 and R-6 are mechanically compatible in most applications, though P600 is the original package specification for the 5KP15C. The 5KP15CA-TP uses R-6 packaging and can substitute in designs where axial lead spacing accommodates this variant.

Q: Why does the SLD15-018-B have automotive qualification?

A: The SLD15-018-B carries AEC-Q101 qualification, indicating it meets automotive industry reliability standards. This certification is optional for general-purpose applications but provides additional assurance for designs requiring automotive-grade components.

Q: Are there differences in clamping voltage between substitutes?

A: Yes. The 5KP15C specifies 25.62V maximum clamping, while most substitutes clamp at 24.4V. The 5KP15CE3/TR13 clamps at 26.9V. These variations remain within acceptable ranges for 15V standoff voltage applications and do not affect functional equivalence for general overvoltage protection.

Q: Which substitute offers the best long-term availability?

A: The 5KP15CA and SLD15-018-B from Littelfuse Inc. offer established supply chains and active product status. Both are recommended for new designs requiring extended component lifecycle support.