P1553UBRP Equivalent & Substitute Parts

Part Overview

The P1553UBRP is a 130V off-state TVS thyristor from Littelfuse Inc.'s SIDACtor® series, designed for transient voltage suppression applications. This component features a 6-SMD gull wing package with a peak pulse current rating of 250 A (8/20µs) and is currently classified as obsolete. Due to its discontinued status, identifying compatible substitute parts is essential for ongoing system support and new design implementations.

Substiute Parts

P1553UBRP

Littelfuse Inc.In Stock: 846P1553UBRP Datasheet

Current PartRFQ

P1553UBLRP

Littelfuse Inc.In Stock: 743P1553UBLRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P1553UBRP is determined by strict equivalence across the following electrical and mechanical parameters:

• Voltage ratings (off-state, breakover, and on-state)
• Peak pulse current specifications (both 8/20µs and 10/1000µs ratings)
• Hold current (Ih)
• Number of internal elements
• Capacitance values
• Package type and mounting configuration
• Supplier device package designation

The P1553UBLRP qualifies as a direct substitute based on identical electrical performance across all specified parameters and compatible mechanical packaging. The primary distinction is packaging format and product status.

Parameter Comparison

Engineering Selection Recommendations

The P1553UBLRP is the direct electrical and mechanical equivalent of the P1553UBRP. Selection between these parts should be based on the following factors:

Product Status: The P1553UBRP is obsolete, while the P1553UBLRP maintains active product status with ongoing manufacturer support and availability.

Compliance: The P1553UBLRP is ROHS3 compliant and REACH unaffected, whereas the P1553UBRP is RoHS non-compliant. For applications subject to environmental regulations or customer compliance requirements, the P1553UBLRP is the appropriate selection.

Packaging: The P1553UBRP is supplied in bulk packaging, while the P1553UBLRP is supplied in tape and reel format. Packaging selection depends on assembly process requirements and order quantities.

Availability: The P1553UBLRP is recommended for new designs and ongoing production due to active status and documented availability.

Frequently Asked Questions (FAQ)

Q: Can the P1553UBLRP directly replace the P1553UBRP in existing designs?

A: Yes. The P1553UBLRP is electrically and mechanically identical to the P1553UBRP across all specified parameters, including voltage ratings, current specifications, capacitance values, and package configuration. No circuit modifications are required.

Q: What is the difference between the P1553UBRP and P1553UBLRP?

A: The primary differences are product status (obsolete vs. active), packaging format (bulk vs. tape & reel), and RoHS compliance status (non-compliant vs. ROHS3 compliant). Electrical performance and mechanical compatibility are identical.

Q: Is the tape and reel packaging of the P1553UBLRP compatible with standard pick-and-place assembly equipment?

A: Yes. The tape and reel format is standard for surface mount assembly processes and is compatible with automated placement equipment configured for 6-SMD gull wing packages.

Q: Why is the P1553UBRP listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The P1553UBLRP represents the active continuation of this product line with identical electrical specifications.

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

A: No differences are specified in the provided parameters. Both parts are from the same SIDACtor® series with identical electrical ratings and package specifications.

Q: What is the Moisture Sensitivity Level (MSL) for both parts?

A: Both the P1553UBRP and P1553UBLRP have an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.