Littelfuse P3100ECMC Equivalent & Substitute Parts

Part Overview

The Littelfuse P3100ECMC is a 275V off-state, 400A peak pulse TVS thyristor in TO-226-2 packaging, part of the SIDACtor® series. This component is classified as obsolete, which necessitates identification of active equivalent parts for new designs and ongoing production requirements. The P3100ECMC provides transient voltage suppression through thyristor technology with specified electrical characteristics suitable for overvoltage protection applications.

Substiute Parts

P3100ECMC

Littelfuse Inc.In Stock: 891P3100ECMC Datasheet

Current PartRFQ

P3100ECMCL

Littelfuse Inc.In Stock: 960P3100ECMCL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P3100ECMC is determined by electrical parameter equivalence and mechanical compatibility. The following criteria establish valid substitution:

• Voltage - Off State: 275V (exact match required)
• Voltage - Breakover: 350V (exact match required)
• Voltage - On State: 4V (exact match required)
• 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)
• Capacitance: 45pF (exact match required)
• Package / Case: TO-226-2, TO-92-2 (TO-226AC) (exact match required)
• Mounting Type: Through Hole (exact match required)

The P3100ECMCL meets all electrical and mechanical parameters specified for the P3100ECMC and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The P3100ECMCL is the appropriate substitute for the obsolete P3100ECMC. Both parts are manufactured by Littelfuse Inc. and share identical electrical and mechanical specifications. The P3100ECMCL holds active product status, ensuring continued availability and supply chain reliability.

The P3100ECMCL provides ROHS3 compliance, whereas the P3100ECMC is RoHS non-compliant. For applications subject to RoHS regulatory requirements, the P3100ECMCL is the mandated selection. Both parts maintain identical moisture sensitivity classification and export control designations.

Frequently Asked Questions (FAQ)

Q: Can the P3100ECMCL directly replace the P3100ECMC in existing designs?

A: Yes. The P3100ECMCL matches all electrical parameters (voltage ratings, current ratings, capacitance) and mechanical specifications (package type, mounting method) of the P3100ECMC. No circuit modifications are required.

Q: What is the primary difference between these parts?

A: The P3100ECMC is obsolete, while the P3100ECMCL is active. The P3100ECMCL also provides ROHS3 compliance, whereas the P3100ECMC does not.

Q: Are there packaging differences between P3100ECMC and P3100ECMCL?

A: No. Both parts use identical TO-226-2 and TO-92-2 (TO-226AC) packaging and through-hole mounting configuration.

Q: What electrical parameters must match for substitution?

A: Off-state voltage (275V), breakover voltage (350V), on-state voltage (4V), peak pulse current at 8/20µs (400A), peak pulse current at 10/1000µs (100A), hold current (150mA), and capacitance (45pF) must all match exactly.

Q: Is the P3100ECMCL suitable for new production designs?

A: Yes. The active product status and ROHS3 compliance of the P3100ECMCL make it the appropriate choice for new designs requiring TVS thyristor protection at 275V off-state specifications.