P0640SCMCRP Equivalent & Substitute Parts

Part Overview

The P0640SCMCRP is a 58V off-state, 400A peak pulse TVS thyristor manufactured by Littelfuse in the SIDACtor® series, housed in a DO-214AA (SMB) surface mount package. This component is classified as obsolete, making identification of equivalent substitute parts essential for ongoing design support and procurement continuity. The part's primary function is transient voltage suppression in electronic circuits requiring high current pulse handling capability.

Substiute Parts

P0640SCMCRP

LittelfuseIn Stock: 2139P0640SCMCRP Datasheet

Current PartRFQ

P0640SCMCLRP

Littelfuse Inc.In Stock: 20466P0640SCMCLRP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P0640SCMCRP is determined by strict equivalence across the following electrical and mechanical parameters:

• Voltage ratings (breakover, off-state, and on-state) must match exactly
• Peak pulse current ratings (both 8/20µs and 10/1000µs) must match exactly
• Hold current (Ih) must match exactly
• Capacitance must match exactly
• Package type (DO-214AA, SMB) must be identical
• Mounting type (surface mount) must be identical
• Number of elements must be identical

The P0640SCMCLRP meets all substitution criteria as a direct equivalent. The primary distinction is packaging format (tape & reel versus cut tape) and product status (active versus obsolete).

Parameter Comparison

Engineering Selection Recommendations

The P0640SCMCLRP is the direct functional equivalent to the P0640SCMCRP. Selection between these parts is determined by procurement and compliance requirements rather than electrical performance:

• For new designs or active product lines: P0640SCMCLRP is the appropriate choice due to active product status and ROHS3 compliance.
• For legacy system support: P0640SCMCLRP provides electrical equivalence while offering improved regulatory compliance and ongoing manufacturer support.
• Packaging considerations: P0640SCMCLRP is supplied in tape & reel format, suitable for automated assembly processes. Verify reel specifications align with production equipment requirements.

Frequently Asked Questions (FAQ)

Q: Can P0640SCMCLRP be used as a direct replacement for P0640SCMCRP in existing designs?

A: Yes. Both parts are electrically identical across all specified 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, 85pF capacitance, and DO-214AA package. No circuit modifications are required.

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

A: The primary differences are product status (obsolete versus active), packaging format (cut tape versus tape & reel), and RoHS compliance status (non-compliant versus ROHS3 compliant). Electrical and mechanical specifications are identical.

Q: Are there any compatibility issues with tape & reel packaging?

A: No compatibility issues exist. Tape & reel packaging is standard for automated assembly. Verify that your production equipment supports the reel specifications and quantity per reel for P0640SCMCLRP.

Q: Does the RoHS3 compliance of P0640SCMCLRP affect circuit performance?

A: No. RoHS3 compliance reflects manufacturing process and material composition standards. Electrical performance and functional characteristics remain identical to the non-compliant version.

Q: What inventory status should be considered for procurement?

A: P0640SCMCRP has 2,059 pieces in stock (obsolete status). P0640SCMCLRP has 20,400 pieces in stock (active status). For ongoing procurement, P0640SCMCLRP offers superior availability and supply chain continuity.