P2103ABRP Equivalent & Substitute Parts

Part Overview

The P2103ABRP is a Transient Voltage Suppressor (TVS) thyristor manufactured by Littelfuse Inc. as part of the SIDACtor® series. This component is a 170V off-state, 250A peak pulse TVS thyristor in a 3-SIP TO-220 modified package configuration with three elements. The P2103ABRP is classified as obsolete, making identification of equivalent substitute parts essential for ongoing system support and procurement planning. Active alternatives with identical electrical and mechanical specifications are available from the same manufacturer.

Substiute Parts

P2103ABRP

Littelfuse Inc.In Stock: 1202P2103ABRP Datasheet

Current PartRFQ

P2103ABL

Littelfuse Inc.In Stock: 5196P2103ABL Datasheet

DirectRFQ

P2103ABLRP

Littelfuse Inc.In Stock: 1033P2103ABLRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P2103ABRP is determined by strict equivalence across all critical electrical parameters and mechanical form factor. The substitute parts P2103ABL and P2103ABLRP maintain identical specifications for voltage ratings (breakover, off-state, and on-state), peak pulse currents at both 8/20µs and 10/1000µs intervals, hold current, element count, capacitance values, and package configuration. The only differences between these parts are product status (P2103ABRP is obsolete; P2103ABL and P2103ABLRP are active) and packaging format (bulk versus tape & reel). Both substitute parts are fully compatible with applications originally designed for the P2103ABRP.

Parameter Comparison

Engineering Selection Recommendations

Both P2103ABL and P2103ABLRP are direct functional equivalents to the obsolete P2103ABRP. Selection between these two active alternatives depends on procurement and assembly requirements:

P2103ABL is supplied in bulk packaging and is suitable for applications where components are manually selected or processed through custom assembly workflows. This part carries ROHS3 compliance certification.

P2103ABLRP is supplied in tape & reel format and is optimized for automated pick-and-place assembly operations. This part also carries ROHS3 compliance certification and REACH unaffected status.

Both substitute parts provide improved regulatory compliance compared to the original P2103ABRP, which is RoHS non-compliant. For new designs or system refreshes, either substitute part is appropriate based on assembly methodology and supply chain logistics.

Frequently Asked Questions (FAQ)

Q: Can P2103ABL or P2103ABLRP be used as direct replacements for P2103ABRP in existing designs?

A: Yes. Both parts are electrically and mechanically identical to the P2103ABRP across all specified parameters, including voltage ratings, current ratings, element count, capacitance, and package configuration. No circuit modifications are required.

Q: What is the difference between P2103ABL and P2103ABLRP?

A: The electrical and mechanical specifications are identical. The difference is packaging format: P2103ABL is supplied in bulk, while P2103ABLRP is supplied in tape & reel format for automated assembly.

Q: Why is the P2103ABRP listed as obsolete?

A: The P2103ABRP has been discontinued by Littelfuse Inc. Active production has transitioned to P2103ABL and P2103ABLRP, which offer the same functionality with improved regulatory compliance.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both P2103ABL and P2103ABLRP are ROHS3 compliant, whereas the original P2103ABRP is RoHS non-compliant.

Q: Which substitute part should I select for high-volume automated assembly?

A: P2103ABLRP in tape & reel format is optimized for automated pick-and-place assembly operations and is the standard choice for high-volume production.

Q: Can I mix P2103ABL and P2103ABLRP in the same assembly?

A: Yes. Both parts are electrically and mechanically identical and can be used interchangeably within the same circuit or assembly.