L2008D8TP Equivalent & Substitute Parts

Part Overview

The L2008D8TP is a Logic-Sensitive Gate TRIAC rated for 200 V off-state voltage with 8 A on-state current in a Surface Mount TO-252 (DPAK) package. This component is classified as Obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part maintains ROHS3 compliance and operates across the industrial temperature range of -40°C to 110°C.

Substiute Parts

L2008D8TP

Littelfuse Inc.In Stock: 703L2008D8TP Datasheet

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L4008D8TP

Littelfuse Inc.In Stock: 1152L4008D8TP Datasheet

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L6008D8TP

Littelfuse Inc.In Stock: 1277L6008D8TP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the L2008D8TP are qualified based on the following criteria:

Mandatory Compatibility Parameters:

• Triac Type: Logic - Sensitive Gate
• Configuration: Single
• Mounting Type: Surface Mount
• Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
• Voltage - Gate Trigger (Vgt) (Max): 1.3 V
• Current - Gate Trigger (Igt) (Max): 10 mA
• Current - Hold (Ih) (Max): 20 mA
• Current - Non Rep. Surge 50, 60Hz (Itsm): 65 A, 85 A
• Operating Temperature: -40°C ~ 110°C (TJ)
• RoHS Status: ROHS3 Compliant

Allowable Variation Parameter:

• Voltage - Off State: Substitutes may have equal or higher voltage ratings (200 V, 400 V, or 600 V)
• Current - On State (It (RMS)) (Max): Must remain at 8 A

The L4008D8TP and L6008D8TP are qualified substitutes with higher voltage ratings (400 V and 600 V respectively), providing enhanced voltage margin while maintaining all other electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

L4008D8TP (400 V Rating): This substitute provides a 2× voltage margin over the original L2008D8TP while maintaining identical current and gate trigger specifications. The part is Active status with ROHS3 compliance and REACH Unaffected designation. Selection is appropriate for applications where the 200 V rating is marginal or where voltage transient protection is desired.

L6008D8TP (600 V Rating): This substitute provides a 3× voltage margin over the original L2008D8TP. The part is Active status with ROHS3 compliance and REACH Unaffected designation. Selection is appropriate for applications requiring maximum voltage headroom or operating in environments with significant voltage transients.

Both substitutes are manufactured by Littelfuse Inc. and share identical mechanical packaging, gate trigger characteristics, and thermal operating range with the original part. The choice between L4008D8TP and L6008D8TP depends on the application's voltage stress profile and design margin requirements.

Frequently Asked Questions (FAQ)

Q: Can L4008D8TP or L6008D8TP be used as direct replacements for L2008D8TP?

A: Yes. Both substitutes maintain identical gate trigger voltage (1.3 V max), gate trigger current (10 mA max), hold current (20 mA max), on-state current (8 A max), and package configuration (TO-252 DPAK). The higher voltage ratings do not affect circuit operation in applications designed for 200 V operation.

Q: What is the primary difference between the three parts?

A: The off-state voltage rating is the only electrical parameter that differs. L2008D8TP is rated 200 V, L4008D8TP is rated 400 V, and L6008D8TP is rated 600 V. All other electrical and mechanical specifications are identical.

Q: Why is the L2008D8TP classified as Obsolete?

A: The L2008D8TP is no longer in active production. The L4008D8TP and L6008D8TP are the current production alternatives from Littelfuse Inc.

Q: Are there any package or pinout differences?

A: No. All three parts use the TO-252-3 DPAK package with identical pinout and mechanical dimensions. PCB layout and footprints are interchangeable.

Q: What compliance certifications apply to the substitute parts?

A: Both L4008D8TP and L6008D8TP are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited). The L6008D8TP additionally carries REACH Unaffected status.