P3104UBRP Equivalent & Substitute Parts

Part Overview

The P3104UBRP is a SIDACtor® Transient Voltage Suppressor (TVS) thyristor manufactured by Littelfuse Inc., designed for overvoltage protection in surface mount applications. This component features a 275V/550V off-state voltage rating with 250A peak pulse current capability in a 6-SMD Gull Wing package. The part is currently classified as obsolete, making identification of compatible substitutes essential for ongoing system support and component procurement.

Substiute Parts

P3104UBRP

Littelfuse Inc.In Stock: 992P3104UBRP Datasheet

Current PartRFQ

P3104UBLRP

Littelfuse Inc.In Stock: 1051P3104UBLRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P3104UBRP is determined by strict equivalence across the following critical electrical and mechanical parameters:

Voltage ratings must match exactly: breakover voltage of 350V/700V and off-state voltage of 275V/550V are non-negotiable for circuit protection function. On-state voltage of 4V, peak pulse current of 250A (8/20µs), and hold current of 150mA must remain constant. The package configuration—6-SMD Gull Wing with Modified MS-013 supplier device package—must be identical to ensure PCB compatibility and assembly process alignment. The number of internal elements (4) and capacitance values (45pF, 80pF) are fixed design parameters that cannot vary.

The P3104UBLRP qualifies as a direct substitute based on identical electrical specifications and mechanical form factor. The primary distinction is packaging format (Tape & Reel versus bulk) and product status (Active versus Obsolete), along with improved RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The P3104UBLRP is the direct functional equivalent of the P3104UBRP. Both components share identical electrical performance characteristics and mechanical specifications required for circuit protection applications. The P3104UBLRP is preferred for new procurement due to its Active product status, ensuring long-term availability and supply chain stability. Additionally, the P3104UBLRP meets ROHS3 compliance requirements, whereas the P3104UBRP is RoHS non-compliant, making the substitute the appropriate choice for applications subject to environmental regulations.

The packaging difference—Tape & Reel format for the P3104UBLRP versus bulk packaging for the P3104UBRP—reflects standard manufacturing and distribution practices and does not affect electrical or mechanical compatibility. Both parts are suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the P3104UBLRP be used as a direct replacement for the P3104UBRP in existing designs?

A: Yes. The P3104UBLRP is electrically and mechanically identical to the P3104UBRP. All voltage ratings, current specifications, and package dimensions are equivalent. The substitute can be used without circuit redesign or PCB layout modification.

Q: What is the difference between the P3104UBRP and P3104UBLRP?

A: The primary differences are product status and packaging format. The P3104UBRP is obsolete and supplied in bulk packaging, while the P3104UBLRP is an active product supplied in Tape & Reel format. The P3104UBLRP also meets ROHS3 compliance standards, whereas the P3104UBRP does not.

Q: Are there any electrical performance differences between these parts?

A: No. Both components have identical breakover voltage (350V, 700V), off-state voltage (275V, 550V), on-state voltage (4V), peak pulse current (250A at 8/20µs), and hold current (150mA) specifications.

Q: Does the Tape & Reel packaging of the P3104UBLRP affect assembly compatibility?

A: No. Tape & Reel packaging is standard for automated surface mount assembly. The 6-SMD Gull Wing package configuration and Modified MS-013 supplier device package remain unchanged, ensuring full compatibility with existing pick-and-place equipment and PCB designs.

Q: Why is RoHS compliance important for this substitution?

A: RoHS compliance indicates adherence to environmental and material restrictions on hazardous substances. The P3104UBLRP's ROHS3 compliance makes it suitable for applications and markets with regulatory requirements, whereas the non-compliant P3104UBRP may face restrictions in certain jurisdictions or customer specifications.