P0640SCMC Equivalent & Substitute Parts

Part Overview

The P0640SCMC is a 58V off-state, 400A 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 operates with a 77V breakover voltage and 5V on-state voltage, designed for transient voltage suppression applications requiring high peak pulse current handling.

Substiute Parts

P0640SCMC

Littelfuse Inc.In Stock: 2700P0640SCMC Datasheet

Current PartRFQ

P0640SCMCLRP

Littelfuse Inc.In Stock: 20466P0640SCMCLRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P0640SCMC is determined by electrical and mechanical parameter equivalence. The primary substitute P0640SCMCLRP maintains identical electrical specifications across all critical parameters: 77V breakover voltage, 58V off-state voltage, 5V on-state voltage, 400A peak pulse current (8/20µs), 100A peak pulse current (10/1000µs), 150mA hold current, and 85pF capacitance. Both parts utilize the same DO-214AA (SMB) surface mount package, ensuring mechanical and thermal compatibility. The key differentiator is packaging format: P0640SCMC is supplied in standard packaging, while P0640SCMCLRP is supplied in Tape & Reel (TR) format. Additionally, P0640SCMCLRP carries active product status and RoHS3 compliance, whereas the original part is obsolete and RoHS non-compliant.

Parameter Comparison

Engineering Selection Recommendations

P0640SCMCLRP is the direct functional equivalent to P0640SCMC. Selection of P0640SCMCLRP is supported by: (1) identical electrical performance across all specified parameters, (2) mechanical compatibility with the same DO-214AA surface mount package, (3) active product status ensuring long-term availability, and (4) RoHS3 compliance meeting current regulatory requirements. The transition from P0640SCMC to P0640SCMCLRP requires no circuit redesign or thermal management modifications. Tape & Reel packaging of P0640SCMCLRP is suitable for automated assembly processes and high-volume production environments.

Frequently Asked Questions (FAQ)

Q: Can P0640SCMCLRP be used as a direct replacement for P0640SCMC in existing designs? A: Yes. P0640SCMCLRP is electrically and mechanically equivalent. All voltage ratings, current specifications, and package dimensions are identical. No circuit modifications are required.

Q: What is the primary difference between P0640SCMC and P0640SCMCLRP? A: The primary difference is packaging format. P0640SCMC uses standard packaging, while P0640SCMCLRP is supplied in Tape & Reel (TR) format for automated assembly. Additionally, P0640SCMCLRP is active product status with RoHS3 compliance, whereas P0640SCMC is obsolete and RoHS non-compliant.

Q: Are there any thermal or electrical performance differences between these parts? A: No. Both parts maintain identical thermal and electrical characteristics, including breakover voltage (77V), off-state voltage (58V), on-state voltage (5V), peak pulse current (400A at 8/20µs), and capacitance (85pF).

Q: Is Tape & Reel packaging compatible with standard PCB assembly equipment? A: Yes. Tape & Reel packaging is the standard format for automated surface mount assembly. P0640SCMCLRP in TR format is compatible with standard pick-and-place equipment and reflow processes.

Q: What does RoHS3 compliance mean for P0640SCMCLRP? A: RoHS3 compliance indicates the part meets current Restriction of Hazardous Substances regulations, restricting the use of specified hazardous materials in electrical and electronic equipment.