P1500ECMCAP Equivalent & Substitute Parts

Part Overview

The P1500ECMCAP is a 140V off-state TVS thyristor manufactured by Littelfuse Inc., part of the SIDACtor® series. This component is designed for transient voltage suppression applications requiring 400A peak pulse current capability in a TO-226-2 package configuration. The part is currently classified as obsolete, making identification of suitable substitutes essential for ongoing system support and component procurement.

Substiute Parts

P1500ECMCAP

Littelfuse Inc.In Stock: 882P1500ECMCAP Datasheet

Current PartRFQ

P1500ECMCLAP

LittelfuseIn Stock: 1135P1500ECMCLAP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P1500ECMCAP is determined by electrical parameter equivalence across all voltage and current ratings. The P1500ECMCLAP qualifies as a direct substitute based on identical specifications for off-state voltage (140V), breakover voltage (180V), on-state voltage (4V), peak pulse current ratings (400A at 8/20µs and 100A at 10/1000µs), hold current (150mA), and capacitance (55pF). Both parts maintain the same package configuration (TO-226-2, TO-92-2) and through-hole mounting type. The critical substitution parameters are: voltage ratings, current ratings, hold current, and physical package compatibility.

Parameter Comparison

Engineering Selection Recommendations

The P1500ECMCLAP is the direct equivalent substitute for the obsolete P1500ECMCAP. Both components share identical electrical specifications and package configurations, ensuring functional interchangeability in circuit applications. The P1500ECMCLAP maintains active product status with current manufacturing availability. The P1500ECMCLAP carries ROHS3 compliance certification, whereas the P1500ECMCAP is non-compliant. For new designs or system updates requiring regulatory compliance, the P1500ECMCLAP is the appropriate selection. Both parts are unaffected by REACH regulations and carry the same ECCN and HTSUS classifications.

Frequently Asked Questions (FAQ)

Q: Can the P1500ECMCLAP directly replace the P1500ECMCAP in existing designs?

A: Yes. The P1500ECMCLAP is electrically and mechanically equivalent to the P1500ECMCAP. All voltage ratings, current ratings, hold current specifications, and package configurations are identical. No circuit modifications are required for substitution.

Q: What is the primary difference between these two parts?

A: The P1500ECMCAP is obsolete with RoHS non-compliance status, while the P1500ECMCLAP is an active product with ROHS3 compliance. The packaging format differs: P1500ECMCLAP is supplied in Tape & Box configuration.

Q: Are there any electrical performance differences between the two parts?

A: No. Both parts maintain identical electrical characteristics: 140V off-state voltage, 180V breakover voltage, 4V on-state voltage, 400A peak pulse current (8/20µs), 100A peak pulse current (10/1000µs), 150mA hold current, and 55pF capacitance.

Q: Is the TO-226-2 package compatible with existing PCB layouts designed for the P1500ECMCAP?

A: Yes. Both parts use the same TO-226-2, TO-92-2 (TO-226AC) package with formed leads and through-hole mounting. PCB footprints and assembly processes remain unchanged.

Q: Does the ROHS3 compliance of the P1500ECMCLAP affect circuit performance?

A: No. ROHS3 compliance indicates material composition standards and does not alter electrical performance or functional characteristics. The component operates identically to the non-compliant version.