Equivalent & Substitute Parts for 3KP14C

Part Overview

The 3KP14C is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient protection applications. This component features a 14V reverse standoff voltage, 24.36V maximum clamping voltage, and 3000W peak pulse power rating in a P600 axial through-hole package. The 3KP14C is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

3KP14C

Littelfuse Inc.In Stock: 10823KP14C Datasheet

Current PartRFQ

5KP14CA

Littelfuse Inc.In Stock: 31835KP14CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3KP14C is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): Must match at 14V
• Package / Case: Must be P600, Axial through-hole configuration
• Bidirectional Channels: Must be 1
• Type: Must be Zener TVS diode
• RoHS Compliance: Must maintain ROHS3 Compliant status

The 5KP14CA qualifies as a direct substitute based on these criteria. While the 5KP14CA exhibits higher peak pulse current (219.8A vs. 129.3A) and greater power dissipation capability (5000W vs. 3000W), these represent performance enhancements within the same electrical class. The voltage parameters—reverse standoff, breakdown, and clamping—remain compatible with the original 3KP14C specification envelope.

Parameter Comparison

Engineering Selection Recommendations

The 5KP14CA is the active equivalent for the obsolete 3KP14C. Both components maintain identical reverse standoff voltage (14V), identical operating temperature range (-55°C to 175°C), and identical package configuration (P600 axial through-hole). Both are ROHS3 compliant.

The 5KP14CA provides superior transient protection capability with 5000W peak pulse power versus the 3KP14C's 3000W rating. This enhanced performance does not compromise compatibility; the 5KP14CA operates within the same voltage class and maintains mechanical and electrical interchangeability in P600 axial form factor.

Selection of the 5KP14CA is appropriate for new designs and replacement of obsolete 3KP14C inventory. The active product status of the 5KP14CA ensures long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the 5KP14CA directly replace the 3KP14C in existing designs?

A: Yes. Both components share identical reverse standoff voltage (14V), operating temperature range (-55°C to 175°C), and P600 axial through-hole package configuration. The 5KP14CA provides enhanced peak pulse current and power dissipation, making it functionally compatible and superior in transient protection performance.

Q: What is the primary difference between the 3KP14C and 5KP14CA?

A: The 5KP14CA offers higher peak pulse current (219.8A vs. 129.3A) and greater power dissipation (5000W vs. 3000W). The 5KP14CA also maintains active product status, whereas the 3KP14C is obsolete.

Q: Are both parts available in the same package?

A: Yes. Both the 3KP14C and 5KP14CA use the P600 axial through-hole package, ensuring mechanical interchangeability on printed circuit boards.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 3KP14C and 5KP14CA are ROHS3 compliant, meeting equivalent environmental and regulatory requirements.

Q: Why is the 3KP14C classified as obsolete?

A: The 3KP14C has been discontinued by Littelfuse Inc. The 5KP14CA represents the active product line continuation for this voltage class and package type.