P3500EARP1 Equivalent & Substitute Parts

Part Overview

The P3500EARP1 is a 320V off-state, 150A peak pulse TVS thyristor manufactured by Littelfuse Inc. in the SIDACtor® series. This component is designed for transient voltage suppression applications requiring high current handling capability in a compact TO-226-2 package. The P3500EARP1 is classified as obsolete, making identification of active equivalent parts essential for new designs and ongoing production support.

Substiute Parts

P3500EARP1

Littelfuse Inc.In Stock: 772P3500EARP1 Datasheet

Current PartRFQ

P3500EALRP1

Littelfuse Inc.In Stock: 976P3500EALRP1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P3500EARP1 is determined by electrical and mechanical parameter equivalence. The primary substitute, P3500EALRP1, maintains identical electrical specifications across all critical parameters: 320V off-state voltage, 400V breakover voltage, 150A peak pulse current (8/20µs), 45A peak current (10/1000µs), 150mA hold current, and 35pF capacitance. Both parts share the same base product number (P3500), package designation (TO-226-2, TO-92-2), and mounting type (through hole). The key differentiator is packaging format: P3500EARP1 uses standard packaging while P3500EALRP1 is supplied in tape and reel format. This distinction affects procurement and assembly processes but does not alter electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The P3500EALRP1 serves as the direct active equivalent to the obsolete P3500EARP1. Selection of P3500EALRP1 is appropriate for applications requiring identical electrical performance with the advantage of active product status and ROHS3 compliance. The tape and reel packaging format of P3500EALRP1 is standard for high-volume production environments and automated assembly processes. For applications constrained to standard packaging formats or manual assembly workflows, component availability and lead time should be evaluated against the obsolete status of P3500EARP1. The electrical and mechanical compatibility between these parts ensures direct substitution without circuit redesign or board layout modification.

Frequently Asked Questions (FAQ)

Q: Can P3500EALRP1 replace P3500EARP1 in existing designs? A: Yes. Both parts share identical electrical specifications (320V off-state, 400V breakover, 150A peak pulse current) and mechanical compatibility (TO-226-2 package, through-hole mounting). The primary difference is packaging format and product status.

Q: What is the difference between standard packaging and tape & reel format? A: Standard packaging is used for manual assembly and small-quantity procurement. Tape & reel format is designed for automated pick-and-place assembly and high-volume production. Both formats contain the same component with identical electrical performance.

Q: Does the RoHS3 compliance of P3500EALRP1 affect electrical performance? A: No. RoHS3 compliance indicates material composition and environmental compliance. Electrical and thermal characteristics remain identical to the non-compliant version.

Q: Are there any circuit modifications required when substituting P3500EALRP1 for P3500EARP1? A: No. Identical electrical parameters, voltage ratings, current ratings, and package dimensions eliminate the need for circuit or layout modifications.

Q: What inventory considerations apply to this substitution? A: P3500EARP1 is obsolete with limited remaining stock. P3500EALRP1 is active with current manufacturing support, ensuring long-term availability and supply chain reliability.