Equivalent & Substitute Parts for 5KP220A-B

Part Overview

The 5KP220A-B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose transient voltage protection applications. This through-hole component operates across a wide temperature range and is RoHS3 compliant. The part is currently active in production with substantial inventory availability. Alternative components may be required due to supply constraints, packaging preferences, or application-specific performance requirements.

Substiute Parts

5KP220A-B

Littelfuse Inc.In Stock: 10705KP220A-B Datasheet

Current PartRFQ

1.5KE250A

Taiwan Semiconductor CorporationIn Stock: 79171.5KE250A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 5KP220A-B is evaluated based on the following critical parameters that define functional equivalence:

• Voltage Rating: Reverse standoff voltage, breakdown voltage minimum, and clamping voltage at peak pulse current
• Current Handling: Peak pulse current capacity (10/1000µs waveform)
• Power Dissipation: Peak pulse power rating
• Package Type: Through-hole axial configuration
• Temperature Range: Operating temperature limits
• Compliance: RoHS3 and REACH status

The 1.5KE250A from Taiwan Semiconductor Corporation is listed as a manufacturer-recommended substitute. This part operates within compatible voltage and current parameters for general-purpose TVS applications, maintains through-hole mounting compatibility, and meets equivalent compliance requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the 5KP220A-B and 1.5KE250A are active products with RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement.

The 5KP220A-B provides higher peak pulse current capacity (13.7A versus 4.5A) and greater power dissipation capability (5kW versus 1.5kW). Selection between these parts depends on the specific transient energy levels present in the application circuit.

The 1.5KE250A operates at a slightly lower reverse standoff voltage (214V versus 220V) and clamping voltage (344V versus 371.1V), with corresponding reductions in current and power handling. Package differences exist between the P600 (5KP220A-B) and DO-201 (1.5KE250A) form factors, which may affect board layout and mechanical integration.

Frequently Asked Questions (FAQ)

Q: Can the 1.5KE250A directly replace the 5KP220A-B in all applications?

A: Direct replacement depends on application transient energy requirements. The 1.5KE250A has lower peak pulse current (4.5A) and power dissipation (1.5kW) ratings compared to the 5KP220A-B (13.7A, 5kW). Applications requiring the higher current or power handling of the 5KP220A-B cannot use the 1.5KE250A as a substitute.

Q: What are the voltage differences between these parts?

A: The 5KP220A-B has a reverse standoff voltage of 220V and clamping voltage of 371.1V. The 1.5KE250A operates at 214V standoff and 344V clamping. Both parts function within overlapping voltage protection ranges for general-purpose applications.

Q: Are the package types interchangeable?

A: Both parts use through-hole axial mounting, but the 5KP220A-B uses P600 packaging while the 1.5KE250A uses DO-201AA/DO-27 packaging. Physical dimensions differ, requiring board layout verification before substitution.

Q: Do both parts meet current compliance requirements?

A: Yes. Both the 5KP220A-B and 1.5KE250A are RoHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic component use.

Q: What determines whether substitution is acceptable?

A: Substitution is acceptable when the application transient voltage and current levels are within the ratings of the substitute part. The 1.5KE250A is suitable for applications with lower transient energy requirements than those requiring the 5KP220A-B's higher current and power handling capabilities.