Equivalent & Substitute Parts for 5KP210CA-B

Part Overview

The 5KP210CA-B is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose voltage protection applications. This through-hole component features a 210V reverse standoff voltage with a 349.5V maximum clamping voltage and 14.6A peak pulse current capability. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter ranges for this TVS diode category.

Substiute Parts

5KP210CA-B

Littelfuse Inc.In Stock: 11205KP210CA-B Datasheet

Current PartRFQ

1.5KE250CA

Taiwan Semiconductor CorporationIn Stock: 150461.5KE250CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of TVS diodes in this category is determined by the following critical parameters:

• Voltage Rating Compatibility: Reverse standoff voltage and breakdown voltage must fall within acceptable tolerance ranges for the protected circuit
• Clamping Voltage Performance: Maximum clamping voltage determines transient suppression effectiveness
• Peak Pulse Current Rating: Must be sufficient for the application's surge current requirements
• Power Dissipation Capacity: Peak pulse power rating must accommodate the energy to be suppressed
• Thermal Operating Range: Must match or exceed the -55°C to 175°C specification
• Package and Mounting: Through-hole axial packages ensure mechanical compatibility with existing PCB layouts
• Compliance Standards: RoHS3 compliance and REACH status must be maintained

The 1.5KE250CA substitute part meets these criteria with comparable voltage ratings, thermal range, through-hole mounting, and full compliance certifications, though with reduced peak pulse current and power dissipation capacity.

Parameter Comparison

Engineering Selection Recommendations

Both the 5KP210CA-B and 1.5KE250CA are active production components with full RoHS3 compliance and REACH unaffected status. The primary distinction lies in power handling capacity: the 5KP210CA-B provides 5kW peak pulse power with 14.6A peak current, while the 1.5KE250CA is rated for 1.5kW peak pulse power with 4.5A peak current. Voltage ratings are closely matched, with the 1.5KE250CA offering slightly higher standoff and breakdown voltages (214V and 237V respectively versus 210V and 233V). Both components maintain identical thermal operating ranges and through-hole axial mounting configurations. The 1.5KE250CA includes AEC-Q101 automotive qualification, providing additional reliability assurance for automotive applications. Selection between these parts depends on the specific surge current and power dissipation requirements of the protected circuit.

Frequently Asked Questions (FAQ)

Q: Can the 1.5KE250CA directly replace the 5KP210CA-B in all applications?

A: Direct replacement is possible only when the application's peak pulse current does not exceed 4.5A and peak pulse power does not exceed 1.5kW. The 5KP210CA-B's higher current and power ratings make it suitable for higher-energy transient events. Voltage ratings are compatible between the two parts.

Q: What is the significance of the different package designations (P600 versus DO-201AA)?

A: Both packages are through-hole axial configurations suitable for PCB mounting. The P600 and DO-201AA packages differ in physical dimensions and lead spacing. Mechanical compatibility with existing PCB layouts must be verified before substitution.

Q: Does the 1.5KE250CA's AEC-Q101 qualification affect its use in non-automotive applications?

A: AEC-Q101 qualification indicates automotive-grade reliability testing and is not restrictive for general-purpose applications. This certification provides additional assurance of component quality and consistency.

Q: Are there any compliance differences between these two parts?

A: Both parts are RoHS3 compliant and REACH unaffected. Compliance status is equivalent, and either part may be used in applications requiring these certifications.

Q: How do the clamping voltages compare between these parts?

A: The 5KP210CA-B has a maximum clamping voltage of 349.5V, while the 1.5KE250CA is rated at 344V. This 5.5V difference is negligible for most protection applications and both parts provide effective transient suppression within their respective power ratings.