P4SMA220C Equivalent & Substitute Parts

Part Overview

The P4SMA220C is a bidirectional transient voltage suppressor (TVS) diode manufactured by Littelfuse Inc., designed for general-purpose voltage clamping applications. This component features a 185V reverse standoff voltage with 400W peak pulse power handling in a surface-mount DO-214AC (SMA) package. The part is currently listed as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Substiute Parts

P4SMA220C

Littelfuse Inc.In Stock: 1190P4SMA220C Datasheet

Current PartRFQ

P4SMA220CA

Eaton - Electronics DivisionIn Stock: 1165P4SMA220CA Datasheet

MFR RecommendedRFQ

P4SMA220CA

Eaton - Electronics DivisionIn Stock: 1165P4SMA220CA Datasheet

MFR RecommendedRFQ

SMAJP4KE220CA-TP

Micro Commercial CoIn Stock: 807SMAJP4KE220CA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P4SMA220C is determined by strict equivalence across the following electrical and mechanical parameters:

• Reverse standoff voltage: 185V (Typ)
• Peak pulse current rating: 1.3A
• Peak pulse power rating: 400W
• Bidirectional channel configuration: 1 channel
• Package type: DO-214AC / SMA surface mount
• Zener diode type classification

The substitute parts P4SMA220CA and SMAJP4KE220CA-TP meet these core requirements. Variations in clamping voltage (328V vs. 344.4V) and operating temperature ranges remain within acceptable substitution parameters for this component category, as the standoff voltage, peak current, and power ratings are maintained.

Parameter Comparison

Engineering Selection Recommendations

P4SMA220CA (Eaton - Electronics Division) is the primary recommended substitute. This part maintains active product status, carries RoHS compliance certification, and is available in standard inventory quantities. The electrical parameters align with the original P4SMA220C across all critical specifications: 185V standoff voltage, 1.3A peak pulse current, and 400W power rating. The clamping voltage of 328V is lower than the original 344.4V but remains within acceptable operating margins for transient suppression applications. The operating temperature range of -55°C to 150°C covers most industrial and commercial applications, with the upper limit matching the original specification.

SMAJP4KE220CA-TP (Micro Commercial Co) serves as a secondary substitute option. This part is also active and meets the core electrical requirements. It offers an extended upper operating temperature limit of 175°C, providing additional thermal margin for high-temperature environments. The package designation (DO-214AC SMAJ) is mechanically compatible with standard SMA footprints. Availability is confirmed at 712 pieces in stock.

Both substitutes are classified under ECCN EAR99 and share the same HTSUS code (8541.10.0080) as the original part, ensuring consistent regulatory and tariff treatment.

Frequently Asked Questions (FAQ)

Q: Can P4SMA220CA directly replace P4SMA220C in existing designs?

A: Yes. Both parts share identical reverse standoff voltage (185V), peak pulse current (1.3A), and power rating (400W). The clamping voltage difference (328V vs. 344.4V) does not prevent functional substitution in general-purpose transient suppression circuits. PCB footprints are compatible as both use DO-214AC (SMA) surface-mount packages.

Q: What is the difference between P4SMA220CA and SMAJP4KE220CA-TP?

A: Both parts meet the core electrical specifications for substitution. The primary differences are manufacturer (Eaton vs. Micro Commercial Co), packaging format (Tape & Reel vs. Bulk), and operating temperature range (-55°C to 150°C vs. -55°C to 175°C). Component selection depends on procurement requirements and thermal environment specifications.

Q: Are there package compatibility concerns between SMA and SMAJ designations?

A: Both SMA and SMAJ refer to the DO-214AC package form factor. These designations are manufacturer-specific nomenclature for the same physical package. Surface-mount assembly equipment and PCB footprints designed for DO-214AC are compatible with both part variants.

Q: Why is the original P4SMA220C listed as obsolete?

A: Obsolescence typically reflects manufacturer discontinuation decisions. Active substitutes from Eaton and Micro Commercial Co provide equivalent functionality and are currently available in production quantities, ensuring design continuity.

Q: What compliance certifications apply to these substitute parts?

A: P4SMA220CA carries RoHS compliance certification. SMAJP4KE220CA-TP is REACH Unaffected. Both parts are classified as EAR99 for export control purposes. Verify specific compliance requirements for your application and region.