Equivalent & Substitute Parts for P1804UBRP

Part Overview

The P1804UBRP is a Transient Voltage Suppressor (TVS) thyristor from Littelfuse Inc., part of the SIDACtor® series. This component is designed for overvoltage protection applications, featuring 170V/340V off-state voltage ratings and 250A peak pulse current capability in a 6-SMD Gull Wing surface mount package. The P1804UBRP is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

P1804UBRP

Littelfuse Inc.In Stock: 1174P1804UBRP Datasheet

Current PartRFQ

P1804UBLRP

LittelfuseIn Stock: 794P1804UBLRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P1804UBRP is determined by strict equivalence across the following electrical and mechanical parameters:

• Voltage ratings (Breakover, Off-State, and On-State)
• Current specifications (Peak Pulse at 8/20µs and 10/1000µs, Hold current)
• Element count and capacitance values
• Physical package configuration (6-SMD, Gull Wing)
• Supplier device package designation (Modified MS-013)

The P1804UBLRP meets all these criteria as a direct substitute. The primary distinction between these parts is packaging format (bulk versus Tape & Reel) and product status (obsolete versus active).

Parameter Comparison

Engineering Selection Recommendations

The P1804UBLRP is the direct functional equivalent of the P1804UBRP. Both components share identical electrical specifications and physical package configurations. The P1804UBLRP is preferred for new designs and ongoing production due to its active product status and ROHS3 compliance. The P1804UBRP, being obsolete and RoHS non-compliant, should be replaced with the P1804UBLRP in applications where regulatory compliance and long-term component availability are required.

Frequently Asked Questions (FAQ)

Q: Can the P1804UBLRP be used as a direct replacement for the P1804UBRP?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including voltage ratings, current ratings, element count, capacitance, and package configuration.

Q: What is the difference between P1804UBRP and P1804UBLRP?

A: The primary differences are packaging format (P1804UBRP is bulk; P1804UBLRP is Tape & Reel), product status (obsolete versus active), and RoHS compliance (non-compliant versus ROHS3 compliant).

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist. The identical 6-SMD Gull Wing package and Modified MS-013 supplier device package ensure mechanical and electrical compatibility in existing PCB designs.

Q: Why is the P1804UBRP listed as obsolete?

A: The P1804UBRP has been discontinued by Littelfuse. The P1804UBLRP serves as the active replacement in the SIDACtor® product line.

Q: Does RoHS compliance affect electrical performance?

A: RoHS compliance reflects manufacturing process standards and material composition but does not alter the electrical performance or functional specifications of the component.