L2X3RP Equivalent & Substitute Parts

Part Overview

The L2X3RP is a Logic-Sensitive Gate TRIAC manufactured by Littelfuse Inc., rated for 200V off-state voltage with 800mA on-state current in a surface mount DO-214 package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. Substitute TRIACs in this family maintain identical gate trigger characteristics and current ratings while offering higher voltage ratings for applications requiring enhanced voltage margin or different system specifications.

Substiute Parts

L2X3RP

Littelfuse Inc.In Stock: 5392L2X3RP Datasheet

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L4X3RP

Littelfuse Inc.In Stock: 3981L4X3RP Datasheet

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L6X3RP

Littelfuse Inc.In Stock: 1161L6X3RP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the L2X3RP are qualified based on the following criteria:

Mandatory Matching Parameters:

• Triac Type: Logic - Sensitive Gate
• Current - On State (It RMS Max): 800mA
• Voltage - Gate Trigger (Vgt Max): 1.3V
• Current - Gate Trigger (Igt Max): 3mA
• Current - Hold (Ih Max): 5mA
• Operating Temperature Range: -40°C to 110°C (TJ)
• Package / Case: DO-214AA, SMB (3 Leads)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: MSL 1

Variable Parameter (Allows Substitution):

• Voltage - Off State: Higher voltage ratings (400V, 600V) are acceptable substitutes for 200V applications, as they provide backward compatibility while offering increased voltage margin.

The L4X3RP (400V) and L6X3RP (600V) meet all mandatory electrical and mechanical specifications, differing only in off-state voltage rating, which is a permissible substitution criterion for this product category.

Parameter Comparison

Engineering Selection Recommendations

L4X3RP (400V Rating): The L4X3RP is an active product with ROHS3 compliance and REACH affected status. It provides a 2x voltage margin over the L2X3RP while maintaining identical gate trigger and current specifications. This part is suitable for applications where the original 200V rating is adequate but higher voltage headroom is beneficial for system reliability.

L6X3RP (600V Rating): The L6X3RP is an active product with ROHS3 compliance and REACH unaffected status. It provides a 3x voltage margin over the L2X3RP. This part is appropriate for applications requiring maximum voltage margin or where system voltage specifications exceed 200V but remain within 600V limits.

Both substitute parts are active products, eliminating obsolescence risk associated with the L2X3RP. Selection between L4X3RP and L6X3RP depends on the application's voltage requirements and system design specifications.

Frequently Asked Questions (FAQ)

Q: Can L4X3RP or L6X3RP be used as direct replacements for L2X3RP? A: Yes. Both parts maintain identical gate trigger voltage (1.3V max), gate trigger current (3mA max), hold current (5mA max), on-state current (800mA), and operating temperature range (-40°C to 110°C). The higher voltage ratings provide backward compatibility with 200V applications.

Q: What is the primary difference between the three parts? A: The off-state voltage rating is the only electrical difference. L2X3RP is rated 200V, L4X3RP is rated 400V, and L6X3RP is rated 600V. All other electrical and mechanical parameters are identical.

Q: Are the packages identical? A: Yes. All three parts use the DO-214AA surface mount package with 3 leads (SMB Compak), ensuring identical PCB footprint and mounting compatibility.

Q: Why is L2X3RP obsolete while L4X3RP and L6X3RP are active? A: Product status reflects manufacturer production and support decisions. The substitute parts remain in active production, providing long-term availability for equivalent functionality.

Q: Do all three parts meet RoHS requirements? A: Yes. All three parts are ROHS3 compliant and have MSL 1 (unlimited moisture sensitivity level), meeting current environmental and reliability standards.

Q: What is the difference in REACH status between L4X3RP and L6X3RP? A: L4X3RP is REACH affected, while L6X3RP is REACH unaffected. Both are compliant with applicable regulations; the difference reflects their material composition classification under REACH.