P0720SC Equivalent & Substitute Parts

Part Overview

The P0720SC is a 65V off-state, 400A peak pulse TVS thyristor manufactured by Littelfuse in the DO-214AA (SMB) package. This component is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. The part operates as a transient voltage suppressor within the SIDACtor® series, providing overvoltage protection in surface-mount applications.

Substiute Parts

P0720SC

LittelfuseIn Stock: 15410P0720SC Datasheet

Current PartRFQ

P0720SCLRP

Littelfuse Inc.In Stock: 145226P0720SCLRP Datasheet

DirectRFQ

SMP100LC-65

STMicroelectronicsIn Stock: 55194SMP100LC-65 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the P0720SC is determined by matching the following critical electrical and mechanical parameters:

• Voltage - Off State: 65V (exact match required)
• Voltage - Breakover: 88V ±3V tolerance acceptable
• Current - Peak Pulse (8/20µs): 400A (exact match required)
• Current - Peak Pulse (10/1000µs): 100A (exact match required)
• Current - Hold (Ih): 150mA (exact match required)
• Package / Case: DO-214AA, SMB (exact match required)
• Mounting Type: Surface Mount (exact match required)

The substitute parts listed below meet these criteria and are qualified as direct replacements for the obsolete P0720SC.

Parameter Comparison

Engineering Selection Recommendations

P0720SCLRP is the direct manufacturer equivalent from Littelfuse, maintaining identical electrical specifications to the P0720SC while offering active product status and ROHS3 compliance. This part is available in Tape & Reel packaging suitable for automated assembly.

SMP100LC-65 from STMicroelectronics is a manufacturer-recommended alternative that meets all critical electrical parameters. The breakover voltage is 85V (within acceptable tolerance of the 88V specification), and capacitance is 90pF (lower than the 150pF of the original). This part is ROHS3 compliant and available in Cut Tape and Digi-Reel® packaging. The lower capacitance may be advantageous in applications sensitive to parasitic effects.

Both substitute parts are active products with current manufacturing support and regulatory compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can P0720SCLRP be used as a direct replacement for P0720SC?

A: Yes. P0720SCLRP is the active equivalent from Littelfuse with identical electrical specifications, package type, and mounting configuration. The primary difference is product status (active vs. obsolete) and packaging format (Tape & Reel vs. bulk).

Q: What is the difference between P0720SCLRP and SMP100LC-65?

A: Both parts meet the core electrical requirements for substitution. P0720SCLRP is from the original manufacturer (Littelfuse) with identical specifications. SMP100LC-65 is from STMicroelectronics with a breakover voltage of 85V (vs. 88V) and capacitance of 90pF (vs. 150pF). The lower capacitance in SMP100LC-65 may reduce parasitic coupling in sensitive circuits.

Q: Are all substitute parts RoHS compliant?

A: P0720SCLRP and SMP100LC-65 are both ROHS3 compliant. The original P0720SC is RoHS non-compliant.

Q: Do the substitute parts use the same package?

A: Yes. All parts use the DO-214AA (SMB) surface-mount package with identical mechanical dimensions and PCB footprint compatibility.

Q: What packaging options are available for these substitutes?

A: P0720SCLRP is supplied in Tape & Reel (TR) format. SMP100LC-65 is available in Cut Tape (CT) and Digi-Reel® formats. Packaging selection depends on assembly process requirements.