P4KE220C Equivalent & Substitute Parts

Part Overview

The P4KE220C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose overvoltage protection applications. This component features a 185V reverse standoff voltage rating and 400W peak pulse power handling capability in a through-hole DO-204AL (DO-41) axial package. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing system support and new designs.

Substiute Parts

P4KE220C

Littelfuse Inc.In Stock: 878P4KE220C Datasheet

Current PartRFQ

P4KE220CA

Taiwan Semiconductor CorporationIn Stock: 899P4KE220CA Datasheet

DirectRFQ

P4KE220CA-AP

Micro Commercial CoIn Stock: 714P4KE220CA-AP Datasheet

MFR RecommendedRFQ

P4KE220CA-BP

Micro Commercial CoIn Stock: 986P4KE220CA-BP Datasheet

MFR RecommendedRFQ

P4KE220CA-G

Comchip TechnologyIn Stock: 941P4KE220CA-G Datasheet

MFR RecommendedRFQ

P4KE220CA-TP

Micro Commercial CoIn Stock: 1185P4KE220CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the P4KE220C are qualified based on the following critical parameters that determine functional equivalence:

Electrical Parameters (Must Match):

• Voltage - Reverse Standoff (Typ): 185V
• Bidirectional Channels: 1
• Current - Peak Pulse (10/1000µs): 1.3A nominal
• Power - Peak Pulse: 400W
• Operating Temperature Range: -55°C minimum to 175°C maximum
• Type: Zener diode

Mechanical Parameters (Must Match):

• Mounting Type: Through Hole
• Package / Case: DO-204AL, DO-41, Axial

Acceptable Variations:

• Voltage - Breakdown (Min): Range 198V–209V acceptable
• Voltage - Clamping (Max) @ Ipp: Range 328V–344.4V acceptable
• Current - Peak Pulse: 1.22A–1.3A acceptable
• Packaging format: Bulk or Tape & Reel (TR)
• Product Status: Active preferred for long-term availability

All identified substitutes maintain the P4KE220 base product number designation and are classified as general-purpose TVS diodes suitable for the same application domain.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: P4KE220CA-TP

The P4KE220CA-TP manufactured by Micro Commercial Co is the optimal substitute for the obsolete P4KE220C. This part maintains full electrical equivalence with identical reverse standoff voltage (185V), peak pulse current (1.3A), and operating temperature range (-55°C to 175°C). The Tape & Reel packaging format supports automated assembly processes. RoHS3 compliance and REACH unaffected status ensure regulatory alignment. Current inventory of 1111 units provides supply security.

Secondary Recommendations:

P4KE220CA (Taiwan Semiconductor Corporation) offers active product status with Tape & Reel packaging and full electrical equivalence. This option is suitable for applications requiring extended supply chain diversity.

P4KE220CA-AP and P4KE220CA-BP (Micro Commercial Co) provide bulk packaging alternatives with identical electrical specifications and active status. These options are appropriate for high-volume procurement scenarios.

Conditional Recommendation:

P4KE220CA-G (Comchip Technology) is qualified as a substitute with the following consideration: the maximum operating temperature is limited to 150°C compared to the 175°C rating of the main part and other substitutes. This part is suitable only for applications where the junction temperature does not exceed 150°C. Current - Peak Pulse specification is 1.22A, which is within acceptable tolerance but represents a 6% reduction from the 1.3A nominal rating.

Frequently Asked Questions (FAQ)

Q: Can P4KE220CA-G be used in all applications where P4KE220C was used?

A: P4KE220CA-G is suitable only for applications where the maximum junction temperature does not exceed 150°C. The original P4KE220C and other substitutes support operation to 175°C. Verify your thermal design requirements before selecting this part.

Q: What is the difference between Tape & Reel and Bulk packaging?

A: Tape & Reel (TR) packaging is formatted for automated pick-and-place assembly equipment and is standard for high-volume manufacturing. Bulk packaging is suitable for manual assembly or lower-volume applications. Both formats contain identical components; the difference is presentation and handling method.

Q: Are all substitute parts RoHS3 compliant?

A: RoHS3 compliance is explicitly stated for P4KE220CA-G and P4KE220CA-TP. Taiwan Semiconductor Corporation (P4KE220CA) and Micro Commercial Co (P4KE220CA-AP, P4KE220CA-BP) do not have RoHS status specified in the provided data. Verify compliance requirements with your procurement department if regulatory certification is mandatory.

Q: What does "REACH Unaffected" mean?

A: REACH Unaffected status indicates that the component does not contain substances of very high concern (SVHC) listed under the EU REACH regulation. This status supports compliance with European environmental and safety requirements.

Q: Is the 1.22A peak pulse current of P4KE220CA-G acceptable?

A: The 1.22A specification represents a 6% reduction from the 1.3A nominal rating of the main part. This is within acceptable tolerance for general-purpose TVS applications. However, if your circuit design relies on the full 1.3A capability, select an alternative substitute with the 1.3A rating.

Q: Can I mix different manufacturers' parts in the same circuit board?

A: Yes. All qualified substitutes maintain identical electrical parameters within specified tolerances and the same mechanical package. Mixing manufacturers is acceptable from an engineering standpoint. However, verify that your procurement and quality assurance procedures support multi-source component strategies.

Q: Why is the voltage clamping specification lower on substitute parts?

A: The substitute parts specify a maximum clamping voltage of 328V compared to 344.4V on the original P4KE220C. Both values fall within acceptable operating ranges for 185V standoff voltage TVS diodes. The lower clamping voltage on substitutes represents improved performance characteristics and is not a limitation.