3KP130A-B Equivalent & Substitute Parts

Part Overview

The 3KP130A-B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage 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 product is currently classified as obsolete, making identification of suitable equivalent and substitute parts essential for ongoing design support and component procurement.

Substiute Parts

3KP130A-B

Littelfuse Inc.In Stock: 11073KP130A-B Datasheet

Current PartRFQ

5KP130A-B

LittelfuseIn Stock: 10355KP130A-B Datasheet

DirectRFQ

3KP130A-TP

Micro Commercial CoIn Stock: 6643KP130A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3KP130A-B are identified based on strict electrical and mechanical parameter compatibility. The primary substitution criteria are:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 130V
• Voltage - Breakdown (Min): 144V
• Voltage - Clamping (Max) @ Ipp: 209V
• Unidirectional Channels: 1
• Type: Zener
• Operating Temperature Range: -55°C ~ 175°C (TJ)
• Mounting Type: Through Hole
• Applications: General Purpose

Allowable Variation Parameters:

• Current - Peak Pulse (10/1000µs): May increase without affecting circuit compatibility
• Power - Peak Pulse: May increase without affecting circuit compatibility
• Package / Case: Axial packages P600 and R-6 are mechanically compatible
• Manufacturer: Different manufacturers acceptable if electrical specifications match

Two substitute parts meet these criteria with documented compatibility.

Parameter Comparison

Engineering Selection Recommendations

5KP130A-B (Littelfuse): This substitute is the preferred direct replacement for the obsolete 3KP130A-B. Both components are manufactured by Littelfuse, share identical electrical specifications for voltage parameters, and maintain the same P600 axial package. The 5KP130A-B offers enhanced current handling (24.4A vs. 14.4A) and power dissipation (5kW vs. 3kW), providing superior transient protection margin. The part is currently in active production status with ROHS3 compliance confirmed.

3KP130A-TP (Micro Commercial Co): This substitute provides electrical equivalence with matching voltage and current specifications to the original 3KP130A-B. The component is manufactured by Micro Commercial Co and is in active production. The package differs slightly (R-6 axial vs. P600 axial), requiring verification of mechanical fit in existing PCB layouts. RoHS compliance status is not specified in available documentation.

Frequently Asked Questions (FAQ)

Q: Can the 5KP130A-B be used as a direct replacement for the 3KP130A-B?

A: Yes. The 5KP130A-B is a direct electrical substitute with identical voltage specifications (130V standoff, 144V breakdown, 209V clamping). Both use the P600 axial package. The higher current rating (24.4A vs. 14.4A) and power dissipation (5kW vs. 3kW) provide additional protection margin without affecting circuit compatibility.

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

A: Both are through-hole axial packages for TVS diodes. The P600 and R-6 are mechanically similar but may have different lead spacing or body dimensions. Physical verification against PCB footprint is required before substituting 3KP130A-TP (R-6 package) for the original 3KP130A-B (P600 package).

Q: Why is the 3KP130A-B marked as obsolete?

A: The 3KP130A-B is no longer in active production by Littelfuse. The 5KP130A-B serves as the current production equivalent with enhanced specifications.

Q: Are there any compliance differences between the substitute parts?

A: The 5KP130A-B carries confirmed ROHS3 compliance. The 3KP130A-TP RoHS status is not specified in available documentation and should be verified with the manufacturer before use in regulated applications.

Q: Can both substitute parts be used interchangeably in the same design?

A: Both substitutes meet the electrical requirements of the original 3KP130A-B. However, the 3KP130A-TP uses an R-6 package while the 5KP130A-B uses P600. PCB layout compatibility must be confirmed for each substitute independently.