3KP6.0C Equivalent & Substitute Parts

Part Overview

The 3KP6.0C is a Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 6V reverse standoff voltage with a 10.82V maximum clamping voltage and 291.3A peak pulse current capability in a through-hole P600 axial package. The part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

3KP6.0C

Littelfuse Inc.In Stock: 8893KP6.0C Datasheet

Current PartRFQ

5KP6.0CA

Littelfuse Inc.In Stock: 30035KP6.0CA Datasheet

DirectRFQ

5KP6.0CA-TP

Micro Commercial CoIn Stock: 20555KP6.0CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3KP6.0C is determined by the following critical parameters:

• Voltage Rating Match: Reverse standoff voltage of 6V and breakdown voltage minimum of 6.32V
• Clamping Voltage Compatibility: Maximum clamping voltage within acceptable circuit protection range
• Package Compatibility: Through-hole P600 or equivalent axial package
• Thermal Performance: Operating temperature range of -55°C to 175°C
• Diode Type: Zener-type TVS with single bidirectional channel
• RoHS Compliance: ROHS3 compliant status for regulatory alignment

The substitute parts identified maintain the core voltage protection characteristics while offering enhanced current handling and power dissipation capabilities in the same physical package form factor.

Parameter Comparison

Engineering Selection Recommendations

5KP6.0CA (Littelfuse Inc.) is the primary substitute for the 3KP6.0C. Both parts are manufactured by Littelfuse Inc., share identical voltage ratings (6V reverse standoff), maintain compatible clamping voltages (10.3V vs. 10.82V), and are housed in the same P600 axial through-hole package. The 5KP6.0CA offers enhanced current handling (495.1A vs. 291.3A) and increased power dissipation (5000W vs. 3000W), providing superior performance margins. The part maintains active product status and full ROHS3 compliance.

5KP6.0CA-TP (Micro Commercial Co) serves as an alternative substitute with equivalent voltage characteristics and power rating. This part uses an R-6 axial package, which is mechanically compatible with P600 footprints in through-hole applications. The part is actively manufactured and ROHS3 compliant. Selection of this alternative is appropriate when supply chain considerations or cost factors favor the Micro Commercial Co source.

Frequently Asked Questions (FAQ)

Q: Can the 5KP6.0CA directly replace the 3KP6.0C in existing designs?

A: Yes. Both parts maintain the same 6V reverse standoff voltage, compatible clamping voltage characteristics, and identical P600 through-hole package. The 5KP6.0CA provides enhanced performance specifications without requiring circuit modifications.

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 refer to different package specifications from different manufacturers. Both are mechanically compatible with standard through-hole PCB layouts designed for axial components.

Q: Why does the 5KP6.0CA have higher current and power ratings than the 3KP6.0C?

A: The 5KP6.0CA represents an enhanced design iteration within the 5KP series, offering improved thermal management and current handling within the same package envelope. These higher ratings provide additional protection margin without changing the voltage protection characteristics.

Q: Are all three parts ROHS3 compliant?

A: Yes. The 3KP6.0C, 5KP6.0CA, and 5KP6.0CA-TP are all ROHS3 compliant, meeting current environmental and regulatory requirements.

Q: What is the significance of the 3KP6.0C being classified as obsolete?

A: Obsolete status indicates the part is no longer in active production. The identified substitutes (5KP6.0CA and 5KP6.0CA-TP) are actively manufactured alternatives that provide equivalent or superior functionality for new designs and ongoing production.