P1800ECAP Equivalent & Substitute Parts

Part Overview

The P1800ECAP is a Transient Voltage Suppressor (TVS) thyristor manufactured by Littelfuse Inc., part of the SIDACtor® series. This component is designed for overvoltage protection applications requiring 170V off-state voltage suppression with 400A peak pulse current capability in a TO-226-2 package configuration.

The P1800ECAP is classified as obsolete. Locating equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.

Substiute Parts

P1800ECAP

Littelfuse Inc.In Stock: 941P1800ECAP Datasheet

Current PartRFQ

P1800ECLAP

Littelfuse Inc.In Stock: 875P1800ECLAP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P1800ECAP is determined by electrical and mechanical parameter equivalence. The following criteria establish valid substitution:

• Voltage - Off State: 170V (exact match required)
• Voltage - Breakover: 220V (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: 90pF (exact match required)
• Package / Case: TO-226-2, TO-92-2 (TO-226AC) (exact match required)
• Mounting Type: Through Hole (exact match required)

The P1800ECLAP meets all electrical and mechanical parameter requirements for direct substitution with the P1800ECAP.

Parameter Comparison

Engineering Selection Recommendations

The P1800ECLAP is the direct substitute for the P1800ECAP. Both components are manufactured by Littelfuse Inc. and share identical electrical and mechanical specifications.

The P1800ECLAP offers the following advantages:

• Active product status ensures ongoing availability and manufacturing support
• ROHS3 compliance meets current environmental and regulatory requirements
• Identical electrical performance across all specified parameters
• Same package configuration and mounting type for direct board-level replacement

The P1800ECAP is obsolete and should be replaced with the P1800ECLAP for new designs and production applications.

Frequently Asked Questions (FAQ)

Q: Can the P1800ECLAP be used as a direct replacement for the P1800ECAP?

A: Yes. The P1800ECLAP is electrically and mechanically equivalent to the P1800ECAP. All voltage ratings, current specifications, capacitance, and package configurations are identical.

Q: What is the difference between the P1800ECAP and P1800ECLAP?

A: The primary differences are product status and compliance. The P1800ECAP is obsolete and RoHS non-compliant. The P1800ECLAP is an active product with ROHS3 compliance. Electrical and mechanical specifications are identical.

Q: Are there any packaging differences between these parts?

A: The P1800ECAP is supplied without specified packaging. The P1800ECLAP is supplied in Tape & Box (TB) packaging. Both use the same TO-226-2, TO-92-2 (TO-226AC) component package with formed leads and through-hole mounting.

Q: Is the P1800ECLAP suitable for new designs?

A: Yes. The P1800ECLAP is an active product with current manufacturing support and regulatory compliance. It is the recommended choice for new designs requiring 170V TVS thyristor protection.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution compatibility is determined by exact matching of off-state voltage (170V), breakover voltage (220V), on-state voltage (4V), peak pulse current ratings (400A at 8/20µs and 100A at 10/1000µs), hold current (150mA), and capacitance (90pF).