Littelfuse 3KP130A Transient Voltage Suppressor (TVS) Diode - Equivalent & Substitute Parts

Part Overview

The Littelfuse 3KP130A is a unidirectional Zener-type transient voltage suppressor diode designed for general-purpose overvoltage protection applications. This component features a 130V reverse standoff voltage with a 209V maximum clamping voltage and 14.4A peak pulse current capability in a through-hole P600 axial package. The 3KP130A is classified as obsolete, making identification of functionally equivalent active alternatives essential for ongoing design support and procurement.

Substiute Parts

3KP130A

LittelfuseIn Stock: 10563KP130A Datasheet

Current PartRFQ

5KP130A

Littelfuse Inc.In Stock: 22105KP130A Datasheet

DirectRFQ

3KP130A-TP

Micro Commercial CoIn Stock: 6643KP130A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3KP130A are identified based on strict electrical and mechanical parameter matching within the TVS diode category. The primary substitution criteria are:

• Voltage Parameters: Reverse standoff voltage (130V), breakdown voltage (144V minimum), and clamping voltage (209V maximum) must remain identical
• Current Rating: Peak pulse current capability must meet or exceed 14.4A at the 10/1000µs pulse specification
• Power Dissipation: Peak pulse power rating must support 3000W minimum
• Thermal Range: Operating temperature range of -55°C to 175°C (TJ)
• Mounting & Package: Through-hole axial configuration required for mechanical compatibility
• Diode Type: Zener-type unidirectional suppression

Two substitute parts meet these criteria with variations in current handling and product status.

Parameter Comparison

Engineering Selection Recommendations

5KP130A (Littelfuse Inc.) is the primary substitute for the obsolete 3KP130A. Both components are manufactured by Littelfuse, maintain identical voltage specifications (130V standoff, 144V breakdown, 209V clamping), and share the same P600 axial package. The 5KP130A is currently in active production status with ROHS3 compliance and MSL 1 rating. The 5KP130A provides enhanced current handling (24.4A versus 14.4A) and increased power dissipation (5000W versus 3000W), offering superior transient protection margin without electrical incompatibility.

3KP130A-TP (Micro Commercial Co) provides an alternative substitute with electrical parameters identical to the original 3KP130A (14.4A peak pulse current, 3000W power dissipation). This part maintains active product status and is available in bulk packaging. The package designation differs (R-6 versus P600), requiring mechanical verification for board-level compatibility despite identical axial through-hole mounting type.

Frequently Asked Questions (FAQ)

Q: Can the 5KP130A directly replace the 3KP130A in existing designs?

A: Yes. The 5KP130A maintains all critical voltage parameters (130V standoff, 144V breakdown, 209V clamping) and mounting configuration (P600 axial through-hole). The increased current rating (24.4A) and power dissipation (5000W) provide enhanced protection without creating electrical incompatibility.

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

A: Both are axial through-hole packages for TVS diodes. The P600 and R-6 designations represent different physical form factors. Mechanical compatibility must be verified against PCB pad spacing and component placement constraints before selecting the 3KP130A-TP.

Q: Why is the 3KP130A obsolete?

A: The 3KP130A is classified as obsolete by Littelfuse. The 5KP130A represents the active-production equivalent within the Littelfuse product line, offering the same voltage protection characteristics with enhanced current and power ratings.

Q: Are all substitute parts RoHS compliant?

A: The 5KP130A is ROHS3 compliant with MSL 1 rating. The 3KP130A-TP compliance status is not specified in available documentation and should be verified with the manufacturer before procurement for regulated applications.

Q: What determines whether a TVS diode can substitute for the 3KP130A?

A: Substitution requires matching voltage parameters (reverse standoff, breakdown, and clamping voltages), current rating at minimum 14.4A peak pulse, power dissipation of 3000W or greater, operating temperature range of -55°C to 175°C, and through-hole axial mounting configuration. Deviations in any of these parameters indicate incompatibility.