P0640ECRP2 Equivalent & Substitute Parts

Part Overview

The P0640ECRP2 is a 58V off-state, 400A peak pulse TVS thyristor manufactured by Littelfuse Inc. in the SIDACtor® series. This component is designed for transient voltage suppression applications requiring through-hole mounting in TO-226-2 (TO-92-2) package configuration. The part is currently classified as obsolete, making identification of suitable substitutes essential for ongoing system support and new design implementations.

Substiute Parts

P0640ECRP2

Littelfuse Inc.In Stock: 1033P0640ECRP2 Datasheet

Current PartRFQ

P0640ECLRP2

Littelfuse Inc.In Stock: 2500P0640ECLRP2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P0640ECRP2 is determined by electrical and mechanical parameter equivalence. The critical parameters defining substitutability are:

• Voltage - Off State: 58V
• Voltage - Breakover: 77V
• Voltage - On State: 4V
• Current - Peak Pulse (8/20µs): 400A
• Current - Peak Pulse (10/1000µs): 100A
• Current - Hold (Ih): 150mA
• Capacitance: 155pF
• Package / Case: TO-226-2, TO-92-2 (TO-226AC)
• Mounting Type: Through Hole

The P0640ECLRP2 meets all electrical specifications and mechanical requirements, with the primary distinction being packaging format (Tape & Reel versus individual unit packaging) and product status (Active versus Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The P0640ECLRP2 is the direct substitute for the P0640ECRP2. All electrical parameters, mechanical specifications, and functional characteristics are identical. The P0640ECLRP2 offers the advantage of active product status, ensuring continued availability and supply chain support. Additionally, the P0640ECLRP2 is ROHS3 compliant, whereas the P0640ECRP2 is non-compliant, making the substitute preferable for applications subject to RoHS regulations. The packaging difference (Tape & Reel for P0640ECLRP2 versus individual packaging for P0640ECRP2) does not affect electrical or mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Are the P0640ECRP2 and P0640ECLRP2 electrically identical?

A: Yes. Both parts share identical voltage ratings (58V off-state, 77V breakover, 4V on-state), current specifications (400A peak pulse at 8/20µs, 100A at 10/1000µs, 150mA hold current), capacitance (155pF), and all other electrical parameters.

Q: What is the difference between these two part numbers?

A: The primary differences are product status (P0640ECRP2 is obsolete; P0640ECLRP2 is active), packaging format (individual versus Tape & Reel), and RoHS compliance (P0640ECLRP2 is ROHS3 compliant). Electrical and mechanical specifications are identical.

Q: Can I use P0640ECLRP2 in place of P0640ECRP2 in existing designs?

A: Yes. The P0640ECLRP2 is a direct substitute. The TO-226-2 package configuration, through-hole mounting type, and all electrical parameters are identical, ensuring compatibility with existing PCB layouts and circuit designs.

Q: Does the Tape & Reel packaging of P0640ECLRP2 affect circuit performance?

A: No. Tape & Reel packaging is a supply format only. The component itself is identical to the individual-packaged version. Once removed from the reel and soldered to the PCB, performance and reliability are equivalent.

Q: Is RoHS compliance a factor in selecting between these parts?

A: If your application or regulatory requirements mandate RoHS compliance, the P0640ECLRP2 (ROHS3 compliant) is the appropriate choice. The P0640ECRP2 is non-compliant and may not be suitable for regulated applications.