P0640SARP Equivalent & Substitute Parts

Part Overview

The P0640SARP is a 58V 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 P0640SALRP serves as the direct functional equivalent with active product status.

Substiute Parts

P0640SARP

Littelfuse Inc.In Stock: 1886P0640SARP Datasheet

Current PartRFQ

P0640SALRP

Littelfuse Inc.In Stock: 2196P0640SALRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P0640SARP with the P0640SALRP is based on identical electrical and mechanical parameters across all critical specifications. Both parts maintain the same voltage ratings (77V breakover, 58V off-state, 4V on-state), current handling capabilities (150A peak pulse at 8/20µs, 45A at 10/1000µs, 150mA hold current), capacitance (60pF), and physical package (DO-214AA, SMB). The substitution is valid based on these matching parameters: voltage class, current rating, thermal characteristics, and form factor compatibility.

Parameter Comparison

Engineering Selection Recommendations

The P0640SALRP is the direct substitute for the obsolete P0640SARP. Selection of the P0640SALRP is supported by: (1) identical electrical specifications across all voltage and current parameters, (2) active product status ensuring long-term availability and supply chain continuity, (3) ROHS3 compliance versus non-compliance of the original part, and (4) compatible surface mount package and pinout. The P0640SALRP is available in Tape & Reel packaging, suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can P0640SALRP directly replace P0640SARP in existing designs? A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including voltage ratings, current handling, capacitance, and DO-214AA package dimensions. No circuit modifications are required.

Q: What is the primary reason to transition from P0640SARP to P0640SALRP? A: The P0640SARP is obsolete. The P0640SALRP maintains identical performance specifications while offering active product status, ensuring procurement availability and supply chain reliability.

Q: Are there packaging differences between these parts? A: The P0640SARP is supplied in bulk packaging, while the P0640SALRP is supplied in Tape & Reel (TR) format. Both use the same DO-214AA (SMB) component package. Tape & Reel packaging is standard for automated assembly operations.

Q: Does the P0640SALRP meet RoHS requirements? A: Yes. The P0640SALRP is ROHS3 compliant. The original P0640SARP is RoHS non-compliant. This compliance difference may be relevant for applications subject to RoHS regulations.

Q: Are the electrical characteristics identical between these parts? A: Yes. Both parts share identical voltage ratings (77V breakover, 58V off-state, 4V on-state), peak pulse current ratings (150A at 8/20µs, 45A at 10/1000µs), hold current (150mA), and capacitance (60pF).