P3500ECAP Equivalent & Substitute Parts

Part Overview

The P3500ECAP is a Transient Voltage Suppressor (TVS) thyristor manufactured by Littelfuse Inc. as part of the SIDACtor® series. This component is designed for overvoltage protection applications requiring 320V off-state voltage suppression with 400A peak pulse current capability in a TO-226-2 package configuration.

The P3500ECAP has reached obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.

Substiute Parts

P3500ECAP

Littelfuse Inc.In Stock: 762P3500ECAP Datasheet

Current PartRFQ

P3500ECLAP

Littelfuse Inc.In Stock: 1082P3500ECLAP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the P3500ECAP is determined by strict equivalence across the following electrical and mechanical parameters:

• Voltage - Breakover: 400V
• Voltage - Off State: 320V
• Voltage - On State: 4V
• Current - Peak Pulse (8/20µs): 400A
• Current - Peak Pulse (10/1000µs): 100A
• Current - Hold (Ih): 150mA
• Capacitance: 65pF
• Number of Elements: 1
• Package / Case: TO-226-2, TO-92-2 (TO-226AC) (Formed Leads)
• Mounting Type: Through Hole

The P3500ECLAP meets all electrical and mechanical substitution criteria. The primary distinction is packaging format and product status.

Parameter Comparison

Engineering Selection Recommendations

The P3500ECLAP is the direct equivalent substitute for the P3500ECAP. Both components share identical electrical specifications and mechanical package configurations. Selection between these parts should be based on the following factors:

Product Status: The P3500ECLAP carries Active product status, ensuring ongoing manufacturer support and availability. The P3500ECAP is Obsolete and subject to discontinuation.

Regulatory Compliance: The P3500ECLAP is ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements. The P3500ECAP is RoHS non-compliant.

Packaging: The P3500ECLAP is supplied in Tape & Box (TB) format, suitable for automated assembly processes. The P3500ECAP is supplied in bulk packaging.

For new designs and production applications, the P3500ECLAP is the appropriate selection. For legacy system repairs requiring exact original specifications, the P3500ECAP may be sourced from existing inventory if available.

Frequently Asked Questions (FAQ)

Q: Can the P3500ECLAP be used as a direct replacement for the P3500ECAP?

A: Yes. The P3500ECLAP is electrically and mechanically equivalent to the P3500ECAP. All voltage ratings, current specifications, and package dimensions are identical. The primary differences are product status and regulatory compliance.

Q: What is the difference between the P3500ECAP and P3500ECLAP?

A: The components are electrically identical. The P3500ECLAP is the current production equivalent with Active status and ROHS3 compliance. The P3500ECAP is Obsolete. Packaging format differs: P3500ECLAP uses Tape & Box (TB) format; P3500ECAP uses bulk packaging.

Q: Are there any package compatibility concerns when substituting the P3500ECLAP for the P3500ECAP?

A: No. Both components use the same TO-226-2, TO-92-2 (TO-226AC) package with formed leads and through-hole mounting. PCB footprints and assembly processes are identical.

Q: Does the P3500ECLAP meet current environmental regulations?

A: Yes. The P3500ECLAP is ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory standards.

Q: What is the hold current (Ih) specification for these components?

A: The hold current (Ih) is 150mA for both the P3500ECAP and P3500ECLAP.

Q: Can these components be used in automated assembly processes?

A: The P3500ECLAP is supplied in Tape & Box (TB) format, which is suitable for automated pick-and-place assembly. The P3500ECAP is supplied in bulk packaging, which requires manual handling.