Littelfuse P3100ECAP TVS Thyristor Equivalent & Substitute Parts

Part Overview

The Littelfuse P3100ECAP is a 275V off-state, 400A peak pulse (8/20µs) transient voltage suppressor thyristor in TO-226-2 package configuration. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. The P3100ECAP belongs to the SIDACtor® series and provides overvoltage protection in applications requiring high peak pulse current handling.

Substiute Parts

P3100ECAP

LittelfuseIn Stock: 1129P3100ECAP Datasheet

Current PartRFQ

P3100ECLAP

Littelfuse Inc.In Stock: 1166P3100ECLAP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P3100ECAP is determined by strict equivalence across the following electrical and mechanical parameters:

• Voltage - Breakover: 350V
• Voltage - Off State: 275V
• Voltage - On State: 4V
• Current - Peak Pulse (8/20µs): 400A
• Current - Peak Pulse (10/1000µs): 100A
• Current - Hold (Ih): 150mA
• Capacitance: 70pF
• Number of Elements: 1
• Package / Case: TO-226-2, TO-92-2 (TO-226AC) (Formed Leads)
• Mounting Type: Through Hole

The P3100ECLAP meets all specified electrical and mechanical parameters and is manufactured by Littelfuse Inc. under the same SIDACtor® series designation.

Parameter Comparison

Engineering Selection Recommendations

The P3100ECLAP is the direct substitute for the obsolete P3100ECAP. Both components share identical electrical specifications and mechanical packaging. The P3100ECLAP is currently in active production status, ensuring supply chain continuity and availability for new designs and production runs.

The P3100ECLAP carries ROHS3 compliance certification, whereas the P3100ECAP is RoHS non-compliant. This distinction is relevant for applications subject to RoHS regulatory requirements. Both components maintain identical moisture sensitivity levels and export classification codes.

Frequently Asked Questions (FAQ)

Q: Can the P3100ECLAP directly replace the P3100ECAP in existing designs?

A: Yes. The P3100ECLAP meets all electrical and mechanical specifications of the P3100ECAP, including breakover voltage, off-state voltage, on-state voltage, peak pulse current ratings, hold current, capacitance, and package configuration. Direct substitution is electrically and mechanically compatible.

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

A: The P3100ECAP is obsolete, while the P3100ECLAP is active production. The P3100ECLAP is ROHS3 compliant, whereas the P3100ECAP is RoHS non-compliant. Electrical and mechanical parameters are identical.

Q: Are there packaging differences between the P3100ECAP and P3100ECLAP?

A: The P3100ECLAP is supplied in Tape & Box (TB) packaging. Both components use the same TO-226-2, TO-92-2 (TO-226AC) package with formed leads and through-hole mounting configuration.

Q: What applications require 275V off-state, 400A peak pulse TVS thyristors?

A: These components are used in transient voltage suppression circuits for equipment requiring high-energy surge protection, including industrial control systems, power distribution equipment, and telecommunications infrastructure.

Q: Is the P3100ECLAP the only active equivalent for the P3100ECAP?

A: Based on the provided specifications, the P3100ECLAP is the identified direct substitute meeting all electrical and mechanical parameters of the P3100ECAP.