5KP210C Equivalent & Substitute Parts

Part Overview

The 5KP210C is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose voltage protection applications. This component features a 210V reverse standoff voltage rating and 366.98V maximum clamping voltage with 5000W peak pulse power handling capability in a through-hole P600 axial package. The part is currently listed as obsolete, making identification of suitable equivalent and substitute components essential for ongoing design support and procurement planning.

Substiute Parts

5KP210C

Littelfuse Inc.In Stock: 11085KP210C Datasheet

Current PartRFQ

5KP210CA

Littelfuse Inc.In Stock: 26015KP210CA Datasheet

DirectRFQ

1.5KE250CA

Taiwan Semiconductor CorporationIn Stock: 150461.5KE250CA Datasheet

MFR RecommendedRFQ

P6KE250CA-TP

Micro Commercial CoIn Stock: 894P6KE250CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 5KP210C is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Reverse standoff voltage within the 210V specification range
• Clamping voltage compatibility at maximum ratings
• Peak pulse power rating of 5000W or greater
• Through-hole axial package configuration
• Operating temperature range of -55°C to 175°C
• ROHS3 compliance and general-purpose application suitability

Substitute Categories:

Direct Equivalent (Same Manufacturer, Same Series): The 5KP210CA from Littelfuse Inc. maintains identical reverse standoff voltage (210V), equivalent clamping voltage (349.5V), and matching 5000W power rating in the same P600 axial package. This part is active in production status.

Cross-Manufacturer Equivalents: The 1.5KE250CA (Taiwan Semiconductor Corporation) and P6KE250CA-TP (Micro Commercial Co) provide functional substitution with comparable voltage standoff ratings (214V), similar clamping voltages (344V), and through-hole axial packages. These parts differ in peak pulse power ratings and package designations but maintain electrical compatibility within the application parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 5KP210CA

The 5KP210CA is the preferred direct substitute for the obsolete 5KP210C. Both components are manufactured by Littelfuse Inc. within the same 5KP series, maintain identical reverse standoff voltage specifications (210V), and are housed in the same P600 axial through-hole package. The 5KP210CA is currently in active production status with ROHS3 compliance certification. This part provides the highest level of form-factor and electrical compatibility with the original design.

Secondary Recommendation: 1.5KE250CA

The 1.5KE250CA from Taiwan Semiconductor Corporation offers functional substitution with a reverse standoff voltage of 214V and clamping voltage of 344V, both within acceptable tolerance ranges of the original specification. This part carries AEC-Q101 automotive qualification and ROHS3 compliance. The primary consideration is the reduced peak pulse power rating of 1500W compared to the 5000W specification of the 5KP210C, which may limit application in high-energy transient environments.

Tertiary Recommendation: P6KE250CA-TP

The P6KE250CA-TP from Micro Commercial Co provides voltage-level compatibility with a 214V reverse standoff and 344V clamping voltage. This part is suitable for lower-energy transient protection applications, as its 600W peak pulse power rating represents a significant reduction from the original 5000W specification. The DO-15 package differs from the original P600 configuration and requires mechanical redesign consideration.

Frequently Asked Questions (FAQ)

Q: Can the 5KP210CA be used as a direct replacement for the 5KP210C?

A: Yes. The 5KP210CA maintains identical reverse standoff voltage (210V), equivalent clamping voltage performance (349.5V), matching 5000W peak pulse power rating, and identical P600 axial through-hole package configuration. The primary difference is product status: 5KP210CA is active in production while 5KP210C is obsolete.

Q: What is the significance of the voltage standoff rating in TVS diode substitution?

A: The reverse standoff voltage determines the threshold at which the TVS diode begins to conduct and suppress transient overvoltages. For the 5KP210C, the 210V standoff voltage must be maintained or closely matched in substitute components to ensure proper circuit protection at the intended voltage level. The 5KP210CA (210V) and cross-manufacturer options (214V) both satisfy this requirement.

Q: Why do the 1.5KE250CA and P6KE250CA-TP have lower peak pulse power ratings?

A: Peak pulse power rating reflects the maximum energy the TVS diode can dissipate during a transient event. The 1.5KE250CA (1500W) and P6KE250CA-TP (600W) are designed for lower-energy transient protection applications compared to the 5KP210C (5000W). Selection depends on the actual transient energy levels present in the target application circuit.

Q: Are package differences between P600, DO-201, and DO-15 significant for substitution?

A: Yes. While all three packages are through-hole axial configurations, they have different physical dimensions and lead spacing. The 5KP210CA uses the same P600 package as the original part and requires no PCB redesign. The 1.5KE250CA (DO-201) and P6KE250CA-TP (DO-15) require mechanical redesign and PCB layout modification to accommodate different package dimensions.

Q: What compliance certifications should be verified when selecting a substitute?

A: All recommended substitutes maintain ROHS3 compliance, meeting environmental regulatory requirements. The 1.5KE250CA additionally carries AEC-Q101 automotive qualification, which may be relevant for automotive or high-reliability applications. Verify that selected substitutes meet the specific compliance requirements of your application and end-use market.

Q: How does clamping voltage affect TVS diode selection?

A: Clamping voltage is the maximum voltage across the TVS diode when conducting at peak pulse current. Lower clamping voltages provide better protection of downstream components. The 5KP210C specifies 366.98V maximum clamping, while substitutes offer 349.5V (5KP210CA) or 344V (1.5KE250CA, P6KE250CA-TP). All values remain within acceptable protection parameters for general-purpose applications.