L2N5RP TRIAC Equivalent & Substitute Parts

Part Overview

The L2N5RP is a Logic-Sensitive Gate TRIAC manufactured by Littelfuse Inc., rated for 200V off-state voltage with 1A on-state current in a surface mount DO-214 package. This component is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. Substitute parts maintain the same functional configuration while offering enhanced voltage ratings or active product status.

Substiute Parts

L2N5RP

Littelfuse Inc.In Stock: 870L2N5RP Datasheet

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L4N5RP

Littelfuse Inc.In Stock: 710L4N5RP Datasheet

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L6N5RP

Littelfuse Inc.In Stock: 5892L6N5RP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the L2N5RP are qualified based on the following criteria:

Maintained Parameters (Substitution Basis):

• Triac Type: Logic - Sensitive Gate
• Current - On State (It (RMS)) (Max): 1 A
• Voltage - Gate Trigger (Vgt) (Max): 1.3 V
• Current - Gate Trigger (Igt) (Max): 5 mA
• Current - Hold (Ih) (Max): 10 mA
• Current - Non Rep. Surge 50, 60Hz (Itsm): 16.7A, 20A
• Operating Temperature: -40°C ~ 125°C (TJ)
• Mounting Type: Surface Mount
• Package / Case: DO-214AA, SMB (3 Leads), Compak
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Variable Parameter (Upgrade Path):

• Voltage - Off State: 200V (main part) → 400V or 600V (substitutes)

The L4N5RP and L6N5RP provide higher voltage ratings while maintaining all other electrical and mechanical specifications, enabling use in applications requiring enhanced voltage headroom.

Parameter Comparison

Engineering Selection Recommendations

L4N5RP (400V Rating): Active product status with 400V off-state voltage rating. Suitable for applications requiring voltage margin above 200V while maintaining identical gate trigger and hold current specifications. ROHS3 compliant with REACH unaffected status.

L6N5RP (600V Rating): Active product status with 600V off-state voltage rating. Provides maximum voltage headroom within the Logic-Sensitive Gate TRIAC family. Highest inventory availability (5855 pcs) among substitute options. ROHS3 compliant with REACH unaffected status.

The L2N5RP obsolete status necessitates transition to either L4N5RP or L6N5RP depending on application voltage requirements. Both substitutes maintain identical gate control characteristics and thermal operating range.

Frequently Asked Questions (FAQ)

Q: Can L4N5RP or L6N5RP directly replace L2N5RP in existing designs?

A: Yes, provided the application circuit voltage does not exceed the original 200V specification. The higher voltage ratings of L4N5RP (400V) and L6N5RP (600V) are backward compatible with 200V applications. Gate trigger voltage, hold current, and on-state current remain identical across all three parts.

Q: What is the primary difference between L4N5RP and L6N5RP?

A: The off-state voltage rating differs: L4N5RP is rated 400V while L6N5RP is rated 600V. All other electrical parameters and package specifications are identical. Selection depends on the maximum voltage the application will encounter.

Q: Are package dimensions identical across L2N5RP, L4N5RP, and L6N5RP?

A: Yes. All three parts use DO-214AA, SMB (3 Leads), Compak surface mount package with identical mechanical specifications, enabling direct PCB layout compatibility.

Q: What is the compliance status of substitute parts?

A: Both L4N5RP and L6N5RP are ROHS3 compliant with MSL 1 (Unlimited). L4N5RP and L6N5RP both have REACH unaffected status, confirming regulatory compliance for new designs.

Q: Why is L2N5RP marked as obsolete?

A: Obsolete status indicates the part is no longer in active production. L4N5RP and L6N5RP represent the active product line continuation with enhanced voltage ratings and ongoing manufacturing support.