P4802AARP Equivalent & Substitute Parts

Part Overview

The P4802AARP is a SIDACtor® thyristor transient voltage suppressor manufactured by Littelfuse Inc., designed for 220V/440V off-state voltage applications with 150A peak pulse current capability in a 3-SIP TO-220 modified package. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity. The substitute part P4802AALRP provides functional equivalence with improved product status and compliance certifications.

Substiute Parts

P4802AARP

Littelfuse Inc.In Stock: 895P4802AARP Datasheet

Current PartRFQ

P4802AALRP

LittelfuseIn Stock: 796P4802AALRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The P4802AALRP qualifies as a direct substitute for the P4802AARP based on identical electrical and mechanical parameters:

• Voltage ratings (breakover and off-state) are identical
• Peak pulse current specifications match across both pulse duration standards (8/20µs and 10/1000µs)
• On-state voltage and hold current are equivalent
• Package configuration, mounting type, and element count are unchanged
• Capacitance values remain consistent

The primary distinction is product status: P4802AALRP is active with current manufacturing support, whereas P4802AARP is obsolete. Additionally, P4802AALRP includes RoHS3 compliance and REACH unaffected status, providing enhanced regulatory alignment for new designs.

Parameter Comparison

Engineering Selection Recommendations

P4802AALRP is the appropriate selection for new designs and procurement activities. The substitute maintains complete electrical and mechanical compatibility with the obsolete P4802AARP while offering active product status and RoHS3 compliance. For existing designs currently using P4802AARP, direct replacement with P4802AALRP requires no circuit modifications or re-qualification, as all functional parameters remain identical. The packaging format difference (tape & reel for P4802AALRP versus unspecified for P4802AARP) affects only procurement and handling procedures, not electrical performance or board-level integration.

Frequently Asked Questions (FAQ)

Q: Can P4802AALRP replace P4802AARP in existing circuits? A: Yes. All electrical parameters, voltage ratings, current specifications, and package dimensions are identical. Direct substitution is possible without circuit redesign.

Q: What is the primary reason to transition from P4802AARP to P4802AALRP? A: P4802AARP is obsolete with no active manufacturing support. P4802AALRP is an active product with current availability and RoHS3 compliance certification.

Q: Are there packaging differences between these parts? A: Both use the 3-SIP TO-220 modified package for through-hole mounting. P4802AALRP is supplied in tape & reel format, which is standard for active production parts.

Q: Do the RoHS compliance differences affect electrical performance? A: No. RoHS compliance relates to material composition and environmental standards, not electrical characteristics. Both parts meet identical voltage and current specifications.

Q: Is re-qualification required when switching from P4802AARP to P4802AALRP? A: No re-qualification is necessary for direct substitution. Electrical and mechanical parameters are identical, and both parts are from the same manufacturer and series.