Equivalent & Substitute Parts for 3KP16C

Part Overview

The 3KP16C is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage protection applications. This component features a 16V reverse standoff voltage, 27.3V maximum clamping voltage, and 3000W peak pulse power rating in a through-hole P600 axial package.

The 3KP16C is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

3KP16C

Littelfuse Inc.In Stock: 8163KP16C Datasheet

Current PartRFQ

5KP16CA

Littelfuse Inc.In Stock: 43305KP16CA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3KP16C is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Voltage - Reverse Standoff (Typ): 16V
• Bidirectional operation (1 channel)
• Zener diode type
• General-purpose transient voltage protection application

Mechanical Compatibility Criteria:

• Through-hole mounting
• P600 axial package
• Operating temperature range: -55°C to 175°C

Regulatory Compliance:

• RoHS3 compliance required

The 5KP16CA qualifies as a direct substitute for the 3KP16C. Both components share identical reverse standoff voltage (16V), bidirectional channel configuration, zener type, through-hole mounting, P600 axial package, and operating temperature range. The 5KP16CA maintains ROHS3 compliance and is currently in active production status, providing improved supply chain availability compared to the obsolete 3KP16C.

Parameter Comparison

Engineering Selection Recommendations

The 5KP16CA is the qualified substitute for the 3KP16C based on the following factors:

Electrical Equivalence: Both components maintain the same 16V reverse standoff voltage and bidirectional zener diode configuration, ensuring functional compatibility in transient voltage suppression circuits.

Package Compatibility: Identical P600 axial through-hole package enables direct mechanical substitution without PCB layout modifications.

Regulatory Compliance: Both components meet ROHS3 compliance requirements, satisfying environmental and regulatory standards.

Supply Chain Status: The 5KP16CA is in active production status, providing reliable long-term availability compared to the obsolete 3KP16C. This status change eliminates supply chain risk for new designs or production continuity.

Performance Enhancement: The 5KP16CA offers higher peak pulse current (196.2A versus 115.4A) and peak pulse power (5000W versus 3000W), providing improved transient suppression capability without compromising the core voltage protection function.

Frequently Asked Questions (FAQ)

Q: Can the 5KP16CA be used as a direct replacement for the 3KP16C in existing designs?

A: Yes. Both components share identical reverse standoff voltage (16V), bidirectional operation, zener type, through-hole mounting, and P600 axial package. No circuit modifications or PCB layout changes are required.

Q: What are the key differences between the 3KP16C and 5KP16CA?

A: The primary differences are product status and power rating. The 3KP16C is obsolete with 3000W peak pulse power, while the 5KP16CA is active production with 5000W peak pulse power. The 5KP16CA also provides higher peak pulse current (196.2A versus 115.4A). Voltage characteristics remain compatible.

Q: Are there any compliance or certification differences between these parts?

A: No. Both components are ROHS3 compliant and operate across the same temperature range (-55°C to 175°C). Regulatory compliance is equivalent.

Q: Does the higher power rating of the 5KP16CA affect circuit design?

A: The higher power rating of the 5KP16CA does not negatively impact circuit design. The component maintains the same voltage protection characteristics and package form factor. The increased power capability provides additional design margin for transient suppression.

Q: What packaging options are available for the 5KP16CA?

A: The 5KP16CA is supplied in Cut Tape (CT) packaging. The component maintains the P600 axial through-hole package configuration, ensuring mechanical compatibility with existing PCB designs.