P2000SARP Equivalent & Substitute Parts

Part Overview

The P2000SARP is a 180V 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, which necessitates identification of equivalent substitute parts for ongoing design support and procurement continuity. The part provides transient voltage suppression through thyristor technology with a 220V breakover voltage and 4V on-state voltage.

Substiute Parts

P2000SARP

Littelfuse Inc.In Stock: 926P2000SARP Datasheet

Current PartRFQ

P2000SALRP

Littelfuse Inc.In Stock: 3952P2000SALRP Datasheet

DirectRFQ

SMTPA180

STMicroelectronicsIn Stock: 3882SMTPA180 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P2000SARP is determined by the following critical parameters:

• Voltage - Off State: 180V (exact match required)
• Voltage - Breakover: 220V nominal (minor variation acceptable within engineering tolerance)
• Current - Peak Pulse (8/20µs): 150A (exact match required)
• Package / Case: DO-214AA, SMB (exact match required)
• Mounting Type: Surface Mount (exact match required)

The identified substitutes maintain these core electrical and mechanical specifications, ensuring functional equivalence in transient voltage suppression applications. Variations in secondary parameters such as capacitance, hold current, and 10/1000µs pulse current are within acceptable engineering tolerances for this component category.

Parameter Comparison

Engineering Selection Recommendations

P2000SALRP is the primary direct substitute for P2000SARP. Both parts are manufactured by Littelfuse Inc. within the SIDACtor® series and share identical electrical specifications across all critical parameters. P2000SALRP carries Active product status and ROHS3 compliance, addressing the obsolescence and regulatory limitations of the original part. Packaging differs only in format (Tape & Reel versus unspecified), which does not affect functional equivalence.

SMTPA180, manufactured by STMicroelectronics, is the manufacturer-recommended alternative. This part maintains the 180V off-state voltage and 150A peak pulse current specifications. The 240V breakover voltage represents a 20V increase over the original specification, and the 150mA hold current exceeds the original 120mA. The 25pF capacitance is lower than the original 35pF. These variations remain within acceptable engineering tolerances for transient voltage suppression applications. SMTPA180 is Active status and ROHS3 compliant.

Both substitutes are suitable for applications requiring the P2000SARP, with selection based on availability, lead time, and specific circuit requirements regarding breakover voltage and hold current characteristics.

Frequently Asked Questions (FAQ)

Q: Can P2000SALRP be used as a direct replacement for P2000SARP?

A: Yes. P2000SALRP is a direct substitute manufactured by the same supplier (Littelfuse Inc.) with identical electrical specifications for all critical parameters: 180V off-state voltage, 220V breakover voltage, 150A peak pulse current (8/20µs), and DO-214AA SMB package. The only difference is product status (Active versus Obsolete) and packaging format (Tape & Reel).

Q: What are the key differences between P2000SALRP and SMTPA180?

A: Both parts meet the core requirements of 180V off-state voltage and 150A peak pulse current in DO-214AA SMB packaging. SMTPA180 has a higher breakover voltage (240V versus 220V), higher hold current (150mA versus 120mA), and lower capacitance (25pF versus 35pF). These differences are within acceptable engineering tolerances for TVS thyristor applications.

Q: Why is the P2000SARP obsolete?

A: The P2000SARP is classified as obsolete by the manufacturer. P2000SALRP, the active equivalent from the same manufacturer, should be used for new designs and ongoing procurement.

Q: Are both substitutes RoHS compliant?

A: Yes. Both P2000SALRP and SMTPA180 are ROHS3 compliant, whereas the original P2000SARP is non-compliant. This compliance status is relevant for applications subject to RoHS regulations.

Q: Does the DO-214AA SMB package remain the same across all three parts?

A: Yes. All three parts use the DO-214AA (SMB) surface mount package, ensuring mechanical and thermal compatibility in PCB layouts.

Q: Which substitute should be selected for new designs?

A: P2000SALRP is recommended for new designs as the direct Littelfuse equivalent. SMTPA180 is suitable where STMicroelectronics supply chain or specific performance characteristics are preferred.