P1800SC Equivalent & Substitute Parts Reference

Part Overview

The Littelfuse Inc. P1800SC is a TVS thyristor in the SIDACtor® series, serving as a surface-mount overvoltage protection device. Key parameters include a 170V off-state voltage, 400A peak pulse capability (8/20µs), and a compact DO-214AA (SMB) package. The part is classified as "Obsolete," making it necessary to identify direct equivalents and substitutes for design continuity, component replenishment, and ongoing maintenance.

Substiute Parts

P1800SC

Littelfuse Inc.In Stock: 10352P1800SC Datasheet

Current PartRFQ

P1800SCLRP

Littelfuse Inc.In Stock: 41745P1800SCLRP Datasheet

DirectRFQ

SMP100LC-160

STMicroelectronicsIn Stock: 5118SMP100LC-160 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Equivalent and substitute selections are based strictly on matching key electrical and mechanical parameters: TVS thyristor category, voltage ratings (breakover and off-state), peak pulse currents, hold current, single-element construction, capacitance, mounting type, and DO-214AA/SMB package compatibility. RoHS status and part activity are also considered for compliance and lifecycle requirements.

Parameter Comparison

Engineering Selection Recommendations

P1800SC has Obsolete status and is RoHS non-compliant. P1800SCLRP is its direct equivalent with identical electrical and mechanical parameters, and it is ROHS3 Compliant and active. SMP100LC-160 is an alternate substitute; it meets the category, main voltage/current parameters, and packaging, with ROHS3 compliance and active status. Selection should be based on inventory, compliance needs, and lifecycle status according to these provided parameters.

Frequently Asked Questions (FAQ)

Q1: What parameters determine if a TVS thyristor is a substitute for P1800SC?
A1: Substitute suitability is defined by category, breakover voltage, off-state voltage, peak pulse currents (8/20µs and 10/1000µs), hold current, number of elements, capacitance, mounting type, and DO-214AA (SMB) package.

Q2: Is P1800SCLRP an exact electrical equivalent to P1800SC?
A2: Yes; P1800SCLRP matches all core electrical and mechanical parameters presented for Littelfuse Inc. P1800SC according to the provided input.

Q3: Are there differences in RoHS compliance among substitutes?
A3: P1800SC is RoHS non-compliant. P1800SCLRP and SMP100LC-160 are ROHS3 Compliant.

Q4: Does the package type affect substitutability for automated assembly?
A4: All listed parts share the DO-214AA, SMB surface-mount package, supporting compatibility in SMT processes.

Q5: How do you select between P1800SCLRP and SMP100LC-160?
A5: Selection is based on matching electrical parameters, package, RoHS status, part lifecycle, and inventory as explicitly provided.