P2500SA Equivalent & Substitute Parts

Part Overview

The P2500SA is a 230V off-state, 150A peak pulse TVS thyristor manufactured by Littelfuse Inc. in the SIDACtor® series, housed in a DO-214AA (SMB) surface mount package. This component is classified as obsolete, making identification of suitable alternatives necessary for ongoing design support and procurement continuity. The part provides transient voltage suppression for applications requiring 230V nominal protection with 150A peak pulse current handling at 8/20µs pulse duration.

Substiute Parts

P2500SA

Littelfuse Inc.In Stock: 30356P2500SA Datasheet

Current PartRFQ

P2500SALRP

Littelfuse Inc.In Stock: 2312P2500SALRP Datasheet

DirectRFQ

SMP100LC-230

STMicroelectronicsIn Stock: 187787SMP100LC-230 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for TVS thyristors is determined by electrical compatibility across voltage and current parameters, combined with mechanical compatibility through package type. The P2500SA operates at 230V off-state with 150A peak pulse current capacity. Substitute parts must maintain the same voltage class (230V off-state) and package form factor (DO-214AA, SMB) to ensure direct board-level compatibility.

Two substitute parts are identified:

P2500SALRP - Direct electrical and mechanical equivalent with identical specifications. Differs only in packaging format (Tape & Reel vs. bulk) and product status (Active vs. Obsolete).

SMP100LC-230 - Manufacturer-recommended alternative from STMicroelectronics. Maintains 230V off-state voltage and DO-214AA package compatibility. Offers enhanced current handling (400A peak pulse at 8/20µs vs. 150A) and higher hold current (150mA vs. 120mA), providing superior transient suppression capability within the same voltage and package envelope.

Parameter Comparison

Engineering Selection Recommendations

P2500SALRP is the direct replacement for P2500SA. It provides identical electrical and mechanical specifications with the advantage of active product status and ROHS3 compliance. This part is suitable for applications requiring exact parameter matching and is recommended as the primary substitute when design specifications mandate 150A peak pulse current capacity.

SMP100LC-230 is the manufacturer-recommended alternative offering enhanced performance within the same voltage and package class. The increased peak pulse current rating (400A vs. 150A) and higher hold current (150mA vs. 120mA) provide additional transient suppression margin. The slightly lower breakover voltage (285V vs. 290V) and increased capacitance (60pF vs. 35pF) represent minor parameter variations that remain within the 230V protection class. This part is suitable for applications where enhanced current handling or improved compliance posture is beneficial. Both substitute parts carry ROHS3 compliance and REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can P2500SALRP be used as a direct drop-in replacement for P2500SA?

A: Yes. P2500SALRP is electrically and mechanically identical to P2500SA, differing only in packaging format (Tape & Reel) and product status (Active). It requires no design changes and is suitable for direct substitution in existing applications.

Q: What are the key differences between P2500SA and SMP100LC-230?

A: Both parts operate at 230V off-state and use the DO-214AA package. SMP100LC-230 provides higher peak pulse current capacity (400A vs. 150A at 8/20µs), higher hold current (150mA vs. 120mA), and increased capacitance (60pF vs. 35pF). The breakover voltage is slightly lower (285V vs. 290V). These differences position SMP100LC-230 as an enhanced-performance alternative within the same voltage and package class.

Q: Are there any compliance differences between the substitute parts?

A: P2500SA is RoHS non-compliant. Both P2500SALRP and SMP100LC-230 are ROHS3 compliant and REACH unaffected. Applications requiring RoHS compliance must use either substitute part.

Q: Does the increased capacitance of SMP100LC-230 affect circuit performance?

A: SMP100LC-230 has 60pF capacitance compared to 35pF in P2500SA. This parameter difference must be evaluated against specific circuit requirements. The increased capacitance may affect high-frequency response characteristics and should be verified in applications with stringent frequency-dependent performance criteria.

Q: What is the inventory status of these parts?

A: P2500SA has 30,300 units in stock but is obsolete. P2500SALRP has 2,300 units available and is active. SMP100LC-230 has 187,700 units in stock and is active, providing the highest availability for new procurement.