Littelfuse P2702AA Equivalent & Substitute Parts

Part Overview

The Littelfuse P2702AA is a SIDACtor® thyristor transient voltage suppressor designed for dual-voltage protection applications. This component provides 120V/240V off-state voltage protection with 150A peak pulse current capability in a 3-SIP through-hole package. The P2702AA is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

P2702AA

LittelfuseIn Stock: 1136P2702AA Datasheet

Current PartRFQ

P2702AALRP

Littelfuse Inc.In Stock: 653P2702AALRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P2702AA is determined by electrical and mechanical parameter equivalence. The primary substitute, P2702AALRP, maintains identical electrical specifications across all critical parameters: dual breakover voltages (160V, 320V), off-state voltages (120V, 240V), on-state voltage (4V), peak pulse currents (150A at 8/20µs and 45A at 10/1000µs), hold current (150mA), element count (2), and capacitance values (25pF, 45pF). Both parts utilize the same 3-SIP package configuration with TO-220 Modified supplier packaging and through-hole mounting.

The key differentiator between these parts is packaging format and product status. The P2702AALRP is supplied in Tape & Reel format and maintains Active product status, whereas the P2702AA is Obsolete. This substitution relationship is direct and one-to-one based on electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The P2702AALRP is the direct equivalent for the obsolete P2702AA. Selection of P2702AALRP is supported by complete electrical parameter equivalence and identical mechanical packaging. The P2702AALRP offers the additional advantage of Active product status, ensuring long-term availability and supply chain continuity.

The P2702AALRP achieves ROHS3 compliance, whereas the P2702AA is RoHS non-compliant. This compliance improvement may be relevant for applications subject to RoHS regulatory requirements. Both parts maintain identical moisture sensitivity classification (MSL 1) and export control designation (EAR99).

Frequently Asked Questions (FAQ)

Q: Can P2702AALRP directly replace P2702AA in existing designs? A: Yes. The P2702AALRP is electrically and mechanically equivalent to the P2702AA. All critical parameters including breakover voltage, off-state voltage, on-state voltage, peak pulse current, hold current, element count, and capacitance are identical. The 3-SIP package and TO-220 Modified supplier packaging are unchanged.

Q: What is the difference between P2702AA and P2702AALRP? A: The primary differences are packaging format and product status. The P2702AALRP is supplied in Tape & Reel format and maintains Active product status. The P2702AA is Obsolete. Additionally, P2702AALRP is ROHS3 compliant while P2702AA is RoHS non-compliant.

Q: Are there any compatibility concerns when substituting P2702AALRP for P2702AA? A: No compatibility concerns exist. Both parts are identical in electrical performance and mechanical form factor. PCB layout, thermal management, and circuit design considerations remain unchanged.

Q: Why is the P2702AA classified as obsolete? A: The P2702AA has reached end-of-life status. The P2702AALRP serves as the active production equivalent and is the recommended part for new designs and ongoing procurement.

Q: Does the Tape & Reel packaging of P2702AALRP affect performance? A: No. Tape & Reel packaging is a supply format only and does not affect electrical or mechanical performance. The component itself remains identical to bulk packaging formats.