P5103UARP Equivalent & Substitute Parts

Part Overview

The P5103UARP is a 420V off-state transient voltage suppressor (TVS) thyristor manufactured by Littelfuse Inc. in the SIDACtor® series. This component is designed for overvoltage protection applications requiring 150 A peak pulse current capability in a 6-SMD gull wing surface mount package. The part is currently obsolete, making identification of suitable substitute components necessary for ongoing system support and new design implementations.

Substiute Parts

P5103UARP

Littelfuse Inc.In Stock: 764P5103UARP Datasheet

Current PartRFQ

P5103UALRP

Littelfuse Inc.In Stock: 1025P5103UALRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P5103UARP is determined by exact matching of the following critical parameters:

• Voltage - Breakover: 600V
• Voltage - Off State: 420V
• Voltage - On State: 8V
• Current - Peak Pulse (8/20µs): 150A
• Current - Peak Pulse (10/1000µs): 45A
• Current - Hold (Ih): 150mA
• Number of Elements: 3
• Capacitance: 40pF, 60pF
• Package / Case: 6-SMD, Gull Wing
• Supplier Device Package: Modified MS-013

The P5103UALRP meets all electrical and mechanical specifications required for direct substitution. The primary distinction is packaging format and product status.

Parameter Comparison

Engineering Selection Recommendations

The P5103UALRP is the direct functional equivalent to the P5103UARP. All electrical characteristics and mechanical specifications are identical. Selection between these parts should be based on the following factors:

Product Status: The P5103UARP is obsolete, while P5103UALRP is active. For new designs and ongoing production, P5103UALRP is the appropriate choice.

Compliance: P5103UALRP is ROHS3 compliant and REACH unaffected, whereas P5103UARP is RoHS non-compliant. Systems requiring regulatory compliance should use P5103UALRP.

Packaging: P5103UALRP is supplied in Tape & Reel format, suitable for automated assembly processes. P5103UARP is supplied in bulk packaging. Packaging selection depends on manufacturing process requirements and volume.

Inventory Availability: P5103UALRP has 1011 units in stock compared to 751 units for P5103UARP, providing greater supply security.

Frequently Asked Questions (FAQ)

Q: Can P5103UALRP replace P5103UARP in existing designs?

A: Yes. The P5103UALRP is electrically and mechanically identical to P5103UARP. All voltage ratings, current specifications, and package dimensions are equivalent. Direct substitution is possible without circuit modification.

Q: What is the difference between bulk and Tape & Reel packaging?

A: Bulk packaging (P5103UARP) is suitable for manual assembly or small-volume applications. Tape & Reel packaging (P5103UALRP) is designed for automated pick-and-place assembly equipment, offering improved handling efficiency in high-volume production.

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance relates to material composition and environmental regulations, not electrical function. Both parts perform identically in circuit operation. RoHS3 compliance of P5103UALRP is required for systems subject to EU environmental directives.

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

A: No differences are specified in the provided parameters. Both parts share identical electrical ratings, thermal characteristics, and reliability specifications within the SIDACtor® series.

Q: What is the Moisture Sensitivity Level (MSL) significance?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These components can be stored and handled without special humidity controls or baking requirements prior to assembly.