Equivalent & Substitute Parts for 3KP5.0C TVS Diode

Part Overview

The 3KP5.0C is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This bidirectional Zener diode features a 5V reverse standoff voltage with a 9.66V maximum clamping voltage and 326.1A peak pulse current capability in a through-hole P600 axial package.

The 3KP5.0C is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this component.

Substiute Parts

3KP5.0C

Littelfuse Inc.In Stock: 10913KP5.0C Datasheet

Current PartRFQ

5KP5.0CA

Littelfuse Inc.In Stock: 31825KP5.0CA Datasheet

DirectRFQ

5KP5.0CA-TP

Micro Commercial CoIn Stock: 77595KP5.0CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3KP5.0C are identified based on the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff: 5V (exact match required)
• Voltage - Clamping (Max) @ Ipp: 9.2V to 9.66V (acceptable range for functional equivalence)
• Bidirectional Channels: 1 (single channel requirement)
• Mounting Type: Through Hole (mechanical compatibility)
• Package / Case: P600 or R-6 axial packages (pin-compatible alternatives)
• Operating Temperature Range: -55°C to 175°C (thermal compatibility)
• RoHS Status: ROHS3 Compliant (regulatory compliance)

The substitute parts listed below meet these criteria and are suitable for direct replacement in applications where the 3KP5.0C was originally specified.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are classified as active products with current manufacturing status, ensuring long-term supply chain availability compared to the obsolete 3KP5.0C.

The 5KP5.0CA (Littelfuse Inc.) maintains identical electrical specifications to the 3KP5.0C while offering enhanced power dissipation capability (5000W versus 3000W) and higher peak pulse current (554.3A versus 326.1A). This part is packaged in the standard P600 axial format and is ROHS3 compliant with unlimited moisture sensitivity rating.

The 5KP5.0CA-TP (Micro Commercial Co) provides equivalent electrical performance with the same 5000W power rating. This part uses the R-6 axial package, which is mechanically compatible with P600 through-hole applications. It is also ROHS3 compliant with unlimited moisture sensitivity rating.

Both substitute parts satisfy regulatory compliance requirements and thermal operating specifications identical to the original 3KP5.0C.

Frequently Asked Questions (FAQ)

Q: Can the 5KP5.0CA directly replace the 3KP5.0C in existing designs?

A: Yes. Both parts share identical reverse standoff voltage (5V), compatible clamping voltage specifications (9.2V versus 9.66V), and matching operating temperature ranges (-55°C to 175°C). The P600 axial package is mechanically identical, enabling direct through-hole mounting compatibility.

Q: What is the difference between the 5KP5.0CA and 5KP5.0CA-TP?

A: Both parts provide equivalent electrical performance with 5V reverse standoff voltage and 9.2V clamping voltage. The primary difference is the package format: 5KP5.0CA uses P600 axial packaging, while 5KP5.0CA-TP uses R-6 axial packaging. Both are through-hole compatible and suitable for replacement applications.

Q: Are there any electrical performance differences between the 3KP5.0C and its substitutes?

A: The substitute parts offer enhanced electrical performance. The 5KP5.0CA and 5KP5.0CA-TP both provide higher peak pulse current capability (554.3A) and greater power dissipation (5000W) compared to the 3KP5.0C (326.1A, 3000W). The clamping voltage is slightly lower (9.2V versus 9.66V), which provides improved overvoltage protection margins.

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

A: Yes. All substitute parts are ROHS3 compliant with MSL rating of 1 (Unlimited), matching the compliance profile of the original 3KP5.0C. Both parts carry identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications.

Q: Which substitute part should be selected for new designs?

A: The 5KP5.0CA is recommended for new designs due to its active product status, standard P600 axial packaging, and direct Littelfuse Inc. manufacturing continuity. The 5KP5.0CA-TP serves as an alternative when R-6 package compatibility is required or when supply from Micro Commercial Co is preferred.