5KP220C-B Equivalent & Substitute Parts

Part Overview

The 5KP220C-B is a transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 220V reverse standoff voltage with a maximum clamping voltage of 389.66V at peak pulse current, housed in a P600 axial through-hole package. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for continued system support and new designs.

Substiute Parts

5KP220C-B

Littelfuse Inc.In Stock: 7235KP220C-B Datasheet

Current PartRFQ

5KP220CA

Littelfuse Inc.In Stock: 14085KP220CA Datasheet

DirectRFQ

5KP220CA-B

Littelfuse Inc.In Stock: 9105KP220CA-B Datasheet

DirectRFQ

1.5KE250CA

Taiwan Semiconductor CorporationIn Stock: 150461.5KE250CA Datasheet

MFR RecommendedRFQ

1.5KE250CA-G

Comchip TechnologyIn Stock: 6971.5KE250CA-G Datasheet

MFR RecommendedRFQ

AK10-200C-BP

Micro Commercial CoIn Stock: 1041AK10-200C-BP Datasheet

MFR RecommendedRFQ

P6KE250CA-AP

Micro Commercial CoIn Stock: 820P6KE250CA-AP Datasheet

MFR RecommendedRFQ

P6KE250CA-BP

Micro Commercial CoIn Stock: 878P6KE250CA-BP Datasheet

MFR RecommendedRFQ

P6KE250CA-G

Comchip TechnologyIn Stock: 708P6KE250CA-G Datasheet

MFR RecommendedRFQ

P6KE250CA-TP

Micro Commercial CoIn Stock: 894P6KE250CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 5KP220C-B is determined by the following critical parameters:

Primary Compatibility Criteria:

• Reverse standoff voltage within the 220V specification
• Clamping voltage performance at rated peak pulse current
• Peak pulse power rating of 5000W (5kW)
• Through-hole axial mounting configuration
• Operating temperature range of -55°C to 175°C minimum
• Zener diode type classification
• Bidirectional single-channel configuration

Substitution Categories:

Category 1: Direct Package Equivalents (P600 Axial) Parts maintaining identical P600 axial package geometry and full 5kW power rating. These provide direct mechanical and electrical interchange capability.

Category 2: Alternative Package Equivalents (DO-201/DO-15 Axial) Parts with different package designations (DO-201AA or DO-15) but equivalent through-hole axial mounting. These require mechanical layout verification but maintain electrical compatibility within specified voltage and power parameters.

Category 3: High-Current Alternatives Parts with significantly elevated peak pulse current ratings (10kA range) suitable for applications requiring enhanced transient suppression capability.

Parameter Comparison

Engineering Selection Recommendations

Recommended Primary Substitutes (Category 1 - Direct Package Equivalents):

The 5KP220CA and 5KP220CA-B are the preferred direct replacements for the obsolete 5KP220C-B. Both parts maintain identical P600 axial package geometry, 220V reverse standoff voltage specification, and 5000W peak pulse power rating. Both are active products from Littelfuse Inc. with ROHS3 compliance and -55°C to 175°C operating temperature range. The 5KP220CA-B is available in bulk packaging with 831 units in stock, while 5KP220CA is available in cut tape with 1313 units in stock. These substitutes provide direct mechanical and electrical interchange without circuit board layout modifications.

Alternative Substitutes (Category 2 - Alternative Package Equivalents):

The 1.5KE250CA series (Taiwan Semiconductor Corporation and Comchip Technology variants) and P6KE250CA series (Micro Commercial Co and Comchip Technology variants) provide electrical compatibility within the 214V to 220V reverse standoff voltage range and 344V clamping voltage specification. These parts use DO-201AA or DO-15 axial packages requiring mechanical layout verification. The 1.5KE250CA series delivers 1500W peak pulse power, while P6KE250CA series delivers 600W peak pulse power, both lower than the original 5000W specification. These alternatives are suitable for applications where reduced power dissipation is acceptable or where package space constraints necessitate smaller form factors.

Specialized Alternative (Category 3 - High-Current Variant):

The AK10-200C-BP from Micro Commercial Co provides exceptional peak pulse current capability (10kA at 8/20µs pulse), suitable for applications requiring enhanced transient suppression. This part operates at 200V reverse standoff voltage with 330V clamping voltage, within acceptable tolerance of the original specification. The right-angle bend package configuration (24.15mm center) requires mechanical layout verification. Operating temperature range is -55°C to 150°C, which is 25°C lower than the original specification.

Compliance Considerations:

All recommended substitutes maintain ROHS3 compliance. The 1.5KE250CA from Taiwan Semiconductor Corporation includes AEC-Q101 automotive qualification. Selection should prioritize parts with active product status and confirmed inventory availability for supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can 5KP220CA or 5KP220CA-B be used as direct replacements for 5KP220C-B?

A: Yes. Both parts are direct substitutes. They maintain identical P600 axial package geometry, 220V reverse standoff voltage, and 5000W peak pulse power rating. Both are active Littelfuse products with ROHS3 compliance and -55°C to 175°C operating temperature range. No circuit board modifications are required.

Q: What is the difference between 5KP220CA and 5KP220CA-B?

A: The primary difference is packaging format. 5KP220CA is supplied in cut tape (CT), while 5KP220CA-B is supplied in bulk. Electrical specifications are identical. Selection depends on procurement and assembly requirements.

Q: Can I use 1.5KE250CA or P6KE250CA series parts as substitutes?

A: These parts provide electrical compatibility within the voltage specification range but have reduced power ratings (1500W and 600W respectively versus 5000W original). They use different package designations (DO-201AA or DO-15 versus P600). Mechanical layout verification is required. Use only if application power dissipation requirements are lower than the original 5kW specification.

Q: What is the significance of the voltage parameters (Reverse Standoff, Breakdown, Clamping)?

A: Reverse standoff voltage (220V) is the maximum voltage the diode blocks without conducting. Breakdown voltage (231.3V minimum) is the threshold where the diode begins conducting. Clamping voltage (389.66V maximum) is the voltage across the diode during peak pulse current. All three parameters must be within acceptable tolerance for proper circuit protection.

Q: Does the AK10-200C-BP provide equivalent protection?

A: The AK10-200C-BP provides electrical protection within acceptable voltage parameters (200V standoff, 330V clamping) but with significantly higher peak pulse current capability (10kA). The right-angle bend package requires mechanical layout verification. Operating temperature range is reduced to -55°C to 150°C. Use only if application requires enhanced transient suppression and package configuration is compatible.

Q: Are all substitute parts ROHS3 compliant?

A: All recommended substitutes are ROHS3 compliant. The 1.5KE250CA from Taiwan Semiconductor Corporation additionally carries AEC-Q101 automotive qualification.

Q: What packaging options are available for the recommended substitutes?

A: 5KP220CA is available in cut tape (CT) with 1313 units in stock. 5KP220CA-B is available in bulk with 831 units in stock. Both maintain P600 axial package geometry. Alternative package options (DO-201AA, DO-15) are available from other manufacturers but require layout verification.