P0904UARP Equivalent & Substitute Parts

Part Overview

The P0904UARP is a SIDACtor® Transient Voltage Suppressor (TVS) thyristor manufactured by Littelfuse Inc., designed for overvoltage protection in surface mount applications. This component features a 75V/175V off-state voltage rating with 150A peak pulse current capability in a 6-SMD Gull Wing package. The P0904UARP is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

P0904UARP

Littelfuse Inc.In Stock: 1150P0904UARP Datasheet

Current PartRFQ

P0904UALRP

Littelfuse Inc.In Stock: 900P0904UALRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The P0904UALRP qualifies as a direct substitute for the P0904UARP based on identical electrical and mechanical parameters. Substitution compatibility is determined by the following criteria:

• Voltage ratings (breakover, off-state, and on-state) must match exactly
• Peak pulse current specifications (8/20µs and 10/1000µs) must be identical
• Hold current (Ih) must be equivalent
• Number of internal elements must match
• Capacitance values must align
• Package type and mounting configuration must be identical
• Supplier device package designation must be the same

The P0904UALRP meets all these requirements, with the primary distinction being packaging format (Tape & Reel versus bulk) and product status (Active versus Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The P0904UALRP is the direct functional equivalent of the P0904UARP. Selection between these parts should be based on the following factors:

For new designs and ongoing production, the P0904UALRP is the preferred choice due to its Active product status and ROHS3 compliance. This part maintains identical electrical performance and mechanical compatibility while offering improved regulatory alignment.

For legacy system support where the P0904UARP is currently deployed, the P0904UALRP provides seamless interchangeability without circuit redesign or performance degradation. The Tape & Reel packaging of the P0904UALRP is suitable for automated assembly processes.

The RoHS compliance difference reflects manufacturing process updates; both parts maintain equivalent electrical characteristics and thermal performance.

Frequently Asked Questions (FAQ)

Q: Can the P0904UALRP be used as a direct replacement for the P0904UARP in existing assemblies?

A: Yes. The P0904UALRP is electrically and mechanically identical to the P0904UARP. All voltage ratings, current specifications, and package dimensions are equivalent, enabling direct substitution without circuit modification.

Q: What is the difference between the P0904UARP and P0904UALRP?

A: The primary differences are product status (Obsolete versus Active), packaging format (bulk versus Tape & Reel), and RoHS compliance status (non-compliant versus ROHS3 compliant). Electrical and mechanical specifications are identical.

Q: Is the Tape & Reel packaging of the P0904UALRP compatible with standard pick-and-place equipment?

A: Yes. The 6-SMD Gull Wing package in Tape & Reel format is compatible with standard surface mount assembly equipment. The Modified MS-013 supplier device package designation is consistent with automated handling requirements.

Q: Are there any thermal or reliability differences between these parts?

A: No. Both parts are manufactured by Littelfuse Inc. within the SIDACtor® product line and maintain identical thermal characteristics, reliability ratings, and performance specifications.

Q: What is the significance of the MSL rating for both parts?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity limitations. These components can be stored and handled without special moisture control measures, simplifying inventory management and logistics.