P3500SCMCRP Equivalent & Substitute Parts

Part Overview

The P3500SCMCRP is a 320V off-state, 400A peak pulse TVS thyristor manufactured by Littelfuse Inc. in the SIDACtor® series. This component is packaged in DO-214AA (SMB) surface mount configuration and is designed for transient voltage suppression applications. The part is currently listed as obsolete, making identification of suitable substitutes necessary for ongoing design support and component procurement.

Substiute Parts

P3500SCMCRP

Littelfuse Inc.In Stock: 23368P3500SCMCRP Datasheet

Current PartRFQ

P3500SCMCLRP

Littelfuse Inc.In Stock: 2242P3500SCMCLRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P3500SCMCRP is determined by electrical and mechanical parameter equivalence. The substitute part P3500SCMCLRP maintains identical electrical specifications across all critical parameters: breakover voltage (400V), off-state voltage (320V), on-state voltage (5V), peak pulse currents (400A at 8/20µs and 100A at 10/1000µs), hold current (150mA), and capacitance (40pF). Both parts share the same package configuration (DO-214AA, SMB) and mounting type (surface mount), ensuring mechanical and thermal compatibility. The primary distinction between these parts is packaging format and product status, not electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The P3500SCMCLRP is the direct substitute for the obsolete P3500SCMCRP. Both parts are manufactured by Littelfuse Inc. and maintain identical electrical and mechanical specifications. The P3500SCMCLRP offers the advantage of active product status, ensuring continued availability and manufacturing support. Additionally, the P3500SCMCLRP is ROHS3 compliant, whereas the original part is non-compliant, making it suitable for applications requiring regulatory compliance. The tape and reel packaging of the P3500SCMCLRP is standard for production environments and automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can P3500SCMCLRP be used as a direct replacement for P3500SCMCRP? A: Yes. Both parts are electrically and mechanically identical, with identical breakover voltage (400V), off-state voltage (320V), on-state voltage (5V), peak pulse currents, hold current, and capacitance specifications. Both use the same DO-214AA (SMB) package and surface mount configuration.

Q: What is the difference between P3500SCMCRP and P3500SCMCLRP? A: The primary differences are product status (obsolete vs. active), packaging format (bulk vs. tape & reel), and RoHS compliance status (non-compliant vs. ROHS3 compliant). Electrical and mechanical parameters are identical.

Q: Why is the original part listed as obsolete? A: Product obsolescence is determined by the manufacturer based on market demand and production decisions. The P3500SCMCLRP remains in active production and is the recommended alternative for new designs and ongoing procurement.

Q: Are there any compatibility concerns when switching from P3500SCMCRP to P3500SCMCLRP? A: No compatibility concerns exist. Identical electrical specifications and package configuration ensure direct compatibility in circuit design and PCB layout.

Q: Does packaging format affect electrical performance? A: No. Tape & reel packaging (P3500SCMCLRP) and bulk packaging (P3500SCMCRP) contain identical components. Packaging format affects only procurement, storage, and assembly processes, not electrical or thermal performance.