3KP210 Equivalent & Substitute Parts

Part Overview

The 3KP210 is a unidirectional Zener transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. It features a 210V reverse standoff voltage with a maximum clamping voltage of 366.98V at peak pulse current. The device is packaged in a P600 axial through-hole configuration and operates across a temperature range of -55°C to 175°C.

The 3KP210 is classified as obsolete. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications requiring this voltage suppression specification.

Substiute Parts

3KP210

Littelfuse Inc.In Stock: 7213KP210 Datasheet

Current PartRFQ

5KP210A

Littelfuse Inc.In Stock: 9755KP210A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3KP210 is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): Must match 210V
• Voltage - Clamping (Max) @ Ipp: Must be within acceptable circuit protection limits
• Current - Peak Pulse (10/1000µs): Must meet or exceed application requirements
• Package / Case: Must be P600, Axial through-hole configuration
• Type: Must be Zener unidirectional TVS diode
• Operating Temperature Range: Must encompass -55°C to 175°C
• RoHS Compliance: Must maintain ROHS3 Compliant status

The 5KP210A qualifies as a direct substitute based on matching reverse standoff voltage (210V), identical package configuration (P600 Axial), compatible operating temperature range, and equivalent RoHS compliance. The substitute provides enhanced performance characteristics while maintaining electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 5KP210A is the qualified substitute for the obsolete 3KP210. Both devices maintain identical reverse standoff voltage (210V), package configuration (P600 Axial), and operating temperature specifications. The 5KP210A is currently in active production status, ensuring long-term availability and supply chain continuity.

Both parts are ROHS3 Compliant and carry equivalent environmental certifications. The 5KP210A demonstrates improved performance metrics, including lower clamping voltage (349.5V versus 366.98V) and higher peak pulse current capability (14.6A versus 8.6A), providing enhanced protection margins in transient suppression applications.

Selection of the 5KP210A eliminates obsolescence risk while maintaining full electrical and mechanical compatibility with existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the 5KP210A be used as a direct replacement for the 3KP210?

A: Yes. Both devices share identical reverse standoff voltage (210V), package configuration (P600 Axial through-hole), and operating temperature range (-55°C to 175°C). The 5KP210A is electrically and mechanically compatible with the 3KP210.

Q: What are the key differences between the 3KP210 and 5KP210A?

A: The 5KP210A provides superior performance: clamping voltage of 349.5V (versus 366.98V), peak pulse current of 14.6A (versus 8.6A), and peak pulse power of 5000W (versus 3000W). The 5KP210A is in active production, while the 3KP210 is obsolete.

Q: Are there any package or mounting differences?

A: No. Both devices use identical P600 Axial through-hole packaging and mounting configuration. No PCB layout modifications are required for substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 3KP210 and 5KP210A are ROHS3 Compliant with equivalent environmental certifications (ECCN: EAR99, HTSUS: 8541.10.0080).

Q: What is the availability status of each part?

A: The 3KP210 is obsolete. The 5KP210A is in active production status, ensuring reliable long-term availability and supply chain support.