P3403UBRP Equivalent & Substitute Parts

Part Overview

The P3403UBRP is a Transient Voltage Suppressor (TVS) thyristor from Littelfuse Inc.'s SIDACtor® series, designed for overvoltage protection in surface mount applications. This component features a 300V off-state voltage rating with 250A peak pulse current capability in a 6-SMD gull wing package. The P3403UBRP is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning. The substitute part P3403UBLRP provides identical electrical performance with active product status and improved compliance certifications.

Substiute Parts

P3403UBRP

Littelfuse Inc.In Stock: 1012P3403UBRP Datasheet

Current PartRFQ

P3403UBLRP

Littelfuse Inc.In Stock: 878P3403UBLRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P3403UBRP with the P3403UBLRP is based on identical electrical and mechanical parameters across all critical specifications. Both parts maintain the same voltage ratings (400V breakover, 300V off-state, 8V on-state), current handling capabilities (250A peak pulse at 8/20µs, 80A at 10/1000µs, 150mA hold current), element count (3), capacitance values (45pF, 65pF), and physical package configuration (6-SMD gull wing, Modified MS-013). The substitution is valid because these parameters define the functional performance and physical compatibility required for circuit integration. The primary distinction between these parts is packaging format and product lifecycle status rather than electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The P3403UBLRP is the direct substitute for the obsolete P3403UBRP. Selection of P3403UBLRP is supported by three factors: identical electrical specifications ensuring circuit performance equivalence, active product status providing ongoing availability and manufacturer support, and ROHS3 compliance meeting current regulatory requirements. The P3403UBRP's obsolete status and RoHS non-compliance status make it unsuitable for new designs or long-term procurement strategies. The tape and reel packaging of P3403UBLRP is standard for production environments and offers cost efficiency for volume applications. Both parts share identical moisture sensitivity classification (MSL 1) and export control designations (EAR99), eliminating compliance complications during substitution.

Frequently Asked Questions (FAQ)

Q: Are P3403UBRP and P3403UBLRP electrically identical? A: Yes. Both parts have identical voltage ratings (400V breakover, 300V off-state, 8V on-state), current specifications (250A peak pulse at 8/20µs, 80A at 10/1000µs, 150mA hold current), element count (3), and capacitance values (45pF, 65pF).

Q: Can P3403UBLRP be used as a direct replacement in existing P3403UBRP designs? A: Yes. The parts are mechanically and electrically compatible. Both use the same 6-SMD gull wing package configuration (Modified MS-013) and surface mount mounting type, requiring no PCB layout modifications.

Q: What is the difference between bulk and tape & reel packaging? A: P3403UBRP is supplied in bulk packaging, while P3403UBLRP is supplied in tape and reel (TR) format. Tape and reel packaging is standard for automated assembly processes and provides better handling for production environments.

Q: Does the RoHS compliance difference affect substitution? A: The P3403UBLRP's ROHS3 compliance makes it the preferred choice for new designs and applications subject to RoHS regulations. The P3403UBRP's RoHS non-compliance status is a key reason for its obsolescence.

Q: Are there any moisture sensitivity concerns with substitution? A: No. Both parts share identical Moisture Sensitivity Level (MSL 1 - Unlimited), indicating no moisture-related handling restrictions for either component.

Q: What export control classifications apply to these parts? A: Both P3403UBRP and P3403UBLRP are classified as EAR99 under export control regulations, with identical HTSUS code 8541.30.0080.