L2004D3TP Equivalent & Substitute Parts

Part Overview

The L2004D3TP is a Logic-Sensitive Gate TRIAC manufactured by Littelfuse Inc., rated for 200 V off-state voltage and 4 A on-state current in a Surface Mount TO-252 (DPAK) package. The component is classified as Obsolete, making identification of equivalent and substitute parts necessary for ongoing design support and procurement continuity. Substitute parts in this category maintain identical electrical performance characteristics while offering higher voltage ratings or improved product status.

Key Parameters

Parameter	Value
Triac Type	Logic - Sensitive Gate
Voltage - Off State	200 V
Current - On State (It (RMS)) (Max)	4 A
Voltage - Gate Trigger (Vgt) (Max)	1.3 V
Current - Gate Trigger (Igt) (Max)	3 mA
Current - Hold (Ih) (Max)	5 mA
Operating Temperature	-40°C ~ 110°C (TJ)
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the L2004D3TP are qualified based on the following criteria:

Electrical Compatibility Parameters:

Triac Type: Logic - Sensitive Gate (identical)
Current - On State (It (RMS)) (Max): 4 A (identical)
Voltage - Gate Trigger (Vgt) (Max): 1.3 V (identical)
Current - Gate Trigger (Igt) (Max): 3 mA (identical)
Current - Hold (Ih) (Max): 5 mA (identical)
Current - Non Rep. Surge 50, 60Hz (Itsm): 33A, 40A (identical)
Operating Temperature: -40°C ~ 110°C (TJ) (identical)

Mechanical Compatibility Parameters:

Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63 (identical)
Mounting Type: Surface Mount (identical)

Voltage Rating Variation: Substitute parts are available with higher off-state voltage ratings (400 V and 600 V) while maintaining all other electrical and mechanical specifications. Higher voltage ratings provide design flexibility for applications requiring increased voltage margin.

Parameter Comparison

Parameter	L2004D3TP	L4004D3TP	L6004D3TP
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.
Triac Type	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate
Voltage - Off State	200 V	400 V	600 V
Current - On State (It (RMS)) (Max)	4 A	4 A	4 A
Voltage - Gate Trigger (Vgt) (Max)	1.3 V	1.3 V	1.3 V
Current - Gate Trigger (Igt) (Max)	3 mA	3 mA	3 mA
Current - Hold (Ih) (Max)	5 mA	5 mA	5 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	33A, 40A	33A, 40A	33A, 40A
Operating Temperature	-40°C ~ 110°C (TJ)	-40°C ~ 110°C (TJ)	-40°C ~ 110°C (TJ)
Package / Case	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active

Engineering Selection Recommendations

L4004D3TP (400 V Rating): This substitute provides a 2x voltage rating increase while maintaining identical gate trigger characteristics and current ratings. The part is Active status with ROHS3 compliance and unlimited moisture sensitivity rating. Selection is appropriate for applications requiring higher voltage margin within the same package footprint.

L6004D3TP (600 V Rating): This substitute provides a 3x voltage rating increase while maintaining identical gate trigger characteristics and current ratings. The part is Active status with ROHS3 compliance, unlimited moisture sensitivity rating, and REACH Unaffected designation. Selection is appropriate for applications requiring maximum voltage headroom within the same package footprint.

Both substitute parts maintain full electrical and mechanical compatibility with the L2004D3TP, differing only in off-state voltage rating and product status (Active vs. Obsolete).

Frequently Asked Questions (FAQ)

Q: Can L4004D3TP or L6004D3TP be used as direct replacements for L2004D3TP?

A: Yes, both parts are direct substitutes from an electrical and mechanical standpoint. They share identical gate trigger voltage, on-state current, hold current, surge current ratings, operating temperature range, and TO-252 DPAK package. The only difference is the off-state voltage rating, which is higher in the substitute parts.

Q: What is the primary reason to select a higher voltage-rated substitute?

A: Higher voltage ratings (400 V or 600 V) provide increased design margin for applications where the 200 V rating of the L2004D3TP may be marginal. This is particularly relevant given the L2004D3TP's Obsolete status, making the Active-status substitutes more suitable for new designs or long-term procurement.

Q: Are there any package or mounting differences between these parts?

A: No. All three parts use the identical TO-252-3 DPAK package with 2 leads plus tab in SC-63 configuration. All are Surface Mount components with identical footprints and land patterns.

Q: What compliance certifications apply to these substitutes?

A: All three parts are ROHS3 Compliant with MSL 1 (Unlimited). The L6004D3TP additionally carries REACH Unaffected designation. All are classified under ECCN EAR99 and HTSUS 8541.30.0080.

Q: Which substitute should be selected for new designs?

A: For new designs, either L4004D3TP or L6004D3TP is recommended based on application voltage requirements. Both are Active-status parts with full compliance certifications. The L6004D3TP offers maximum voltage headroom if application voltage is uncertain.

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