P0721UARP Equivalent & Substitute Parts

Part Overview

The P0721UARP is a Transient Voltage Suppressor (TVS) device manufactured by Littelfuse Inc., designed for circuit protection in SLIC applications. This component features mixed technology with four circuits in a 6-SMD, Gull Wing surface mount package. The part is currently classified as obsolete, making identification of suitable substitutes essential for ongoing system support and component procurement.

Substiute Parts

P0721UARP

Littelfuse Inc.In Stock: 980P0721UARP Datasheet

Current PartRFQ

P0721UALRP

Littelfuse Inc.In Stock: 822P0721UALRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P0721UARP is determined by strict equivalence across the following critical parameters:

• Voltage - Clamping: 88V
• Technology: Mixed Technology
• Number of Circuits: 4
• Package / Case: 6-SMD, Gull Wing
• Supplier Device Package: MS-013
• Applications: SLIC
• Mounting Type: Surface Mount

The P0721UALRP qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction is packaging format (Tape & Reel versus bulk) and product status (Active versus Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The P0721UALRP is the direct functional equivalent of the P0721UARP. Both components share identical electrical and mechanical specifications, including clamping voltage, circuit count, package type, and SLIC application suitability.

The P0721UALRP offers the advantage of active product status, ensuring continued manufacturer support and availability. Additionally, the P0721UALRP meets ROHS3 compliance requirements, whereas the P0721UARP is non-compliant. For new designs or system refreshes, the P0721UALRP is the appropriate selection. For legacy system maintenance requiring exact form-factor compatibility, the P0721UARP remains functionally interchangeable where available inventory permits.

Frequently Asked Questions (FAQ)

Q: Can P0721UALRP directly replace P0721UARP in existing assemblies?

A: Yes. Both parts are electrically and mechanically identical. They share the same 88V clamping voltage, four-circuit configuration, MS-013 package, and 6-SMD Gull Wing form factor. The primary difference is packaging format (Tape & Reel versus bulk) and product lifecycle status.

Q: What is the significance of the packaging format difference?

A: P0721UARP is supplied in bulk packaging, while P0721UALRP is supplied in Tape & Reel format. This affects procurement logistics and automated assembly processes but does not impact electrical or mechanical performance.

Q: Why is RoHS compliance different between these parts?

A: P0721UARP predates current RoHS3 requirements and is non-compliant. P0721UALRP is manufactured to current ROHS3 standards. For applications subject to RoHS regulations, P0721UALRP is the required selection.

Q: Are there any circuit design modifications needed when substituting P0721UALRP for P0721UARP?

A: No. Identical electrical specifications and package geometry eliminate the need for circuit design changes. PCB layout and component placement remain unchanged.

Q: What is the Moisture Sensitivity Level (MSL) for these components?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.