P2106UARP Equivalent & Substitute Parts

Part Overview

The P2106UARP is a 170V off-state TVS thyristor from Littelfuse Inc.'s SIDACtor® series, designed for transient voltage suppression applications. This component features 150 A peak pulse current capability in a 6-SMD gull wing surface mount package. The part is currently listed as obsolete, making identification of compatible substitutes essential for ongoing system support and procurement planning.

Substiute Parts

P2106UARP

Littelfuse Inc.In Stock: 1153P2106UARP Datasheet

Current PartRFQ

P2106UALRP

Littelfuse Inc.In Stock: 1904P2106UALRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P2106UARP is determined by exact matching of the following critical parameters:

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

The P2106UALRP qualifies as a direct substitute based on identical electrical characteristics and package specifications. The primary distinction between these parts is packaging format and product status.

Parameter Comparison

Engineering Selection Recommendations

The P2106UALRP is the direct functional equivalent of the P2106UARP. Both parts share identical electrical specifications and physical package dimensions, ensuring pin-for-pin and functional compatibility.

Selection between these parts should be based on:

• Product status: The P2106UALRP is active production, while the P2106UARP is obsolete. For new designs or long-term supply requirements, the P2106UALRP is the appropriate choice.
• Regulatory compliance: The P2106UALRP meets ROHS3 compliance standards, whereas the P2106UARP is non-compliant. Applications subject to RoHS regulations require the P2106UALRP.
• Packaging requirements: The P2106UALRP is supplied in tape and reel format, suitable for automated assembly processes. The P2106UARP is supplied in bulk packaging.

Frequently Asked Questions (FAQ)

Q: Can the P2106UALRP be used as a direct replacement for the P2106UARP?

A: Yes. Both parts are electrically and mechanically identical, with matching voltage ratings, current specifications, and package configurations. The P2106UALRP is the active production equivalent.

Q: What is the difference between these two part numbers?

A: The primary differences are product status (obsolete vs. active), RoHS compliance level, and packaging format (bulk vs. tape and reel). Electrical performance and physical dimensions are identical.

Q: Are there any compatibility concerns when substituting the P2106UALRP for the P2106UARP?

A: No compatibility concerns exist. The parts are functionally equivalent with identical electrical characteristics and package specifications. PCB layout and assembly processes require no modification.

Q: Which part should be specified for new designs?

A: The P2106UALRP should be specified for new designs. It is in active production and meets current regulatory compliance requirements.

Q: Does the tape and reel packaging of the P2106UALRP affect circuit performance?

A: No. Packaging format does not affect electrical performance or functional characteristics. The difference is in supply and handling format only.