P2103UARP Equivalent & Substitute Parts

Part Overview

The P2103UARP is a 170V off-state, 150A peak pulse TVS thyristor manufactured by Littelfuse in a 6-SMD gull wing surface mount package. This component is part of the SIDACtor® series and is designed for transient voltage suppression applications requiring high peak pulse current handling. The P2103UARP is currently listed as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

P2103UARP

LittelfuseIn Stock: 1059P2103UARP Datasheet

Current PartRFQ

P2103UALRP

Littelfuse Inc.In Stock: 774P2103UALRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P2103UARP is determined by electrical and mechanical parameter equivalence. The following criteria establish valid substitutes:

• Voltage ratings must match exactly: 250V breakover, 170V off-state, and 8V on-state
• Peak pulse current ratings must be identical: 150A (8/20µs) and 45A (10/1000µs)
• Hold current must equal 150mA
• Number of elements must be 3
• Capacitance values must be 55pF and 85pF
• Package configuration must be 6-SMD, gull wing surface mount
• Supplier device package must be Modified MS-013

The P2103UALRP meets all these criteria and is classified as a direct manufacturer substitute.

Parameter Comparison

Engineering Selection Recommendations

The P2103UALRP is the direct substitute for the obsolete P2103UARP. Both components are electrically and mechanically identical across all specified parameters. The primary distinction is product status and regulatory compliance.

The P2103UARP is obsolete and no longer in active production. The P2103UALRP is an active product from the same manufacturer with identical electrical characteristics and package configuration. The P2103UALRP carries ROHS3 compliance, whereas the P2103UARP is non-compliant. For new designs and ongoing system support, the P2103UALRP is the appropriate selection.

Both components share identical moisture sensitivity levels, export classifications, and tariff codes, ensuring compatibility in supply chain and regulatory contexts.

Frequently Asked Questions (FAQ)

Q: Can the P2103UALRP be used as a direct replacement for the P2103UARP?

A: Yes. The P2103UALRP is electrically and mechanically equivalent to the P2103UARP across all specified parameters, including voltage ratings, current ratings, capacitance, and package configuration.

Q: What is the primary reason to substitute the P2103UARP?

A: The P2103UARP is obsolete and no longer manufactured. The P2103UALRP is the active equivalent from Littelfuse.

Q: Are there packaging differences between these parts?

A: Both components use 6-SMD gull wing surface mount packages with Modified MS-013 supplier device packaging. The P2103UALRP is supplied in Tape & Reel format, which is standard for active production parts.

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance is a regulatory and material composition specification. Electrical performance and functional characteristics remain identical between the two parts.

Q: Are the moisture sensitivity levels the same?

A: Yes. Both the P2103UARP and P2103UALRP have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions.

Q: Can these parts be used interchangeably in existing assemblies?

A: Yes. Identical electrical ratings, on-state voltage, hold current, and package configuration ensure direct interchangeability in PCB layouts and circuit designs.