P4202AA Equivalent & Substitute Parts

Part Overview

The P4202AA is a Transient Voltage Suppressor (TVS) thyristor manufactured by Littelfuse Inc. as part of the SIDACtor® series. This component is designed for overvoltage protection applications, featuring a 190V/380V off-state voltage rating with 150A peak pulse current capability in a 3-SIP through-hole package. The P4202AA is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

P4202AA

Littelfuse Inc.In Stock: 1365P4202AA Datasheet

Current PartRFQ

P4202AALRP

Littelfuse Inc.In Stock: 918P4202AALRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P4202AA is determined by strict equivalence across electrical and mechanical parameters. The primary substitute, P4202AALRP, maintains identical electrical specifications including breakover voltage (250V, 500V), off-state voltage (190V, 380V), on-state voltage (4V), peak pulse current ratings (150A at 8/20µs and 45A at 10/1000µs), hold current (150 mA), element count (2), and capacitance values (20pF, 35pF). Both components utilize the same 3-SIP package configuration with TO-220 Modified supplier device packaging and through-hole mounting technology.

The key differentiator between these parts is packaging format and product status. The P4202AALRP is supplied in Tape & Reel (TR) format and maintains Active product status, whereas the P4202AA is obsolete. Both components are classified under ECCN EAR99 and share identical HTSUS coding (8541.30.0080).

Parameter Comparison

Engineering Selection Recommendations

The P4202AALRP is the direct functional equivalent for the obsolete P4202AA. Selection of P4202AALRP is appropriate for applications requiring continued supply of this TVS thyristor topology. The substitute part maintains complete electrical and mechanical compatibility while offering the advantage of Active product status, ensuring long-term availability and supply chain continuity.

The P4202AALRP provides improved regulatory compliance through ROHS3 certification, whereas the P4202AA is RoHS non-compliant. For new designs or systems requiring regulatory compliance documentation, P4202AALRP is the appropriate selection. Both components share identical electrical performance characteristics and package geometry, supporting direct substitution in existing through-hole PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can P4202AALRP be used as a direct replacement for P4202AA in existing designs?

A: Yes. The P4202AALRP is electrically and mechanically identical to the P4202AA. Both components feature the same voltage ratings (190V/380V off-state), current ratings (150A peak pulse at 8/20µs), on-state voltage (4V), and 3-SIP through-hole package configuration. Direct substitution is supported without circuit modification.

Q: What is the primary difference between P4202AA and P4202AALRP?

A: The primary differences are product status and packaging format. P4202AA is obsolete and supplied in bulk packaging, while P4202AALRP is Active and supplied in Tape & Reel (TR) format. Additionally, P4202AALRP is ROHS3 compliant, whereas P4202AA is RoHS non-compliant.

Q: Are there any package or pinout differences between these parts?

A: No. Both components use the identical 3-SIP package with TO-220 Modified supplier device packaging. Through-hole mounting configuration and pin assignments are identical, supporting direct PCB layout compatibility.

Q: Why is the P4202AA classified as obsolete?

A: The P4202AA has reached end-of-life status. The P4202AALRP serves as the active production equivalent, ensuring continued availability for applications requiring this TVS thyristor specification.

Q: Does the Tape & Reel packaging of P4202AALRP affect electrical performance?

A: No. Packaging format (Tape & Reel versus bulk) does not affect component electrical characteristics or performance. The change in packaging format is a supply chain consideration only.