5KP210 Equivalent & Substitute Parts

Part Overview

The 5KP210 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 210V reverse standoff voltage rating and 5000W peak pulse power handling capability in a through-hole P600 axial package.

The 5KP210 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this component.

Substiute Parts

5KP210

Littelfuse Inc.In Stock: 7685KP210 Datasheet

Current PartRFQ

5KP210A

Littelfuse Inc.In Stock: 9755KP210A Datasheet

DirectRFQ

1.5KE250A

Taiwan Semiconductor CorporationIn Stock: 79171.5KE250A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5KP210 is determined by the following critical parameters:

• Reverse standoff voltage within the 210V specification
• Breakdown voltage minimum in the range of 220–237V
• Clamping voltage performance compatible with circuit protection requirements
• Through-hole axial package configuration (P600 or equivalent DO-201)
• Peak pulse power rating of 1500W or greater
• Operating temperature range of -55°C to 175°C or broader
• RoHS3 compliance and general-purpose application suitability

Two substitute parts meet these criteria:

1. 5KP210A (Littelfuse Inc.) — Direct series equivalent with identical voltage ratings and enhanced current specification
2. 1.5KE250A (Taiwan Semiconductor Corporation) — Alternative series with comparable voltage performance and reduced power rating

Parameter Comparison

Engineering Selection Recommendations

5KP210A is the primary substitute for the obsolete 5KP210. Both components are manufactured by Littelfuse Inc., share identical voltage ratings and power specifications, and utilize the same P600 axial package. The 5KP210A is in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. This part provides direct functional equivalence with enhanced current specification (14.6A vs. unspecified for the original).

1.5KE250A is an alternative substitute manufactured by Taiwan Semiconductor Corporation. While it maintains comparable reverse standoff voltage (214V vs. 210V) and clamping voltage performance (344V vs. 366.98V), it operates at reduced peak pulse power (1500W vs. 5000W) and lower peak pulse current (4.5A vs. 14.6A). The 1.5KE250A uses a DO-201 package rather than P600, requiring mechanical board layout verification. This part is suitable for applications where the lower power rating is acceptable.

Both substitutes maintain the -55°C to 175°C operating temperature range and RoHS3 compliance of the original component.

Frequently Asked Questions (FAQ)

Q: Can the 5KP210A directly replace the 5KP210 without circuit modification?

A: Yes. The 5KP210A shares identical reverse standoff voltage (210V), breakdown voltage specification, and peak pulse power rating (5000W). Both use the P600 axial through-hole package. No circuit redesign is required.

Q: What are the key differences between 5KP210A and 1.5KE250A?

A: The 5KP210A maintains the full 5000W power rating and 14.6A peak pulse current. The 1.5KE250A operates at 1500W power and 4.5A peak pulse current. Additionally, the 1.5KE250A uses a DO-201 package instead of P600, requiring board layout verification for mechanical compatibility.

Q: Is the 1.5KE250A suitable for all 5KP210 applications?

A: The 1.5KE250A is suitable only for applications where the reduced power rating (1500W vs. 5000W) and lower peak pulse current (4.5A vs. 14.6A) meet circuit protection requirements. Verify that your application does not exceed these limits before substitution.

Q: Are both substitute parts RoHS3 compliant?

A: Yes. Both the 5KP210A and 1.5KE250A are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Q: What is the package difference between P600 and DO-201?

A: Both are through-hole axial packages. P600 is the Littelfuse designation; DO-201AA is the industry standard equivalent used by Taiwan Semiconductor Corporation. Physical dimensions and lead spacing differ. Verify PCB footprint compatibility before selecting the 1.5KE250A.

Q: Which substitute has better availability?

A: Both parts are in active production. The 5KP210A is the direct equivalent from the original manufacturer. The 1.5KE250A offers higher inventory availability (7900 pcs vs. 963 pcs) but requires power rating verification for your application.