L2004V8TP TRIAC Equivalent & Substitute Parts

Part Overview

The L2004V8TP 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 TO-251 through-hole package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute TRIACs in this family maintain identical gate trigger characteristics and current ratings while offering higher voltage ratings for enhanced circuit protection margins.

Substiute Parts

L2004V8TP

Littelfuse Inc.In Stock: 797L2004V8TP Datasheet

Current PartRFQ

L4004V8TP

Littelfuse Inc.In Stock: 744L4004V8TP Datasheet

UpgradeRFQ

L6004V8TP

Littelfuse Inc.In Stock: 2249L6004V8TP Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute TRIACs for the L2004V8TP are selected based on the following criteria:

Mandatory Matching Parameters:

• Triac Type: Logic - Sensitive Gate
• Current - On State (It (RMS)) (Max): 4 A
• Voltage - Gate Trigger (Vgt) (Max): 1.3 V
• Current - Gate Trigger (Igt) (Max): 10 mA
• Current - Hold (Ih) (Max): 15 mA
• Mounting Type: Through Hole
• Package / Case: TO-251-3 Short Leads, IPak, TO-251AA
• Operating Temperature: -40°C ~ 110°C (TJ)

Allowable Variation:

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

The L4004V8TP (400 V) and L6004V8TP (600 V) meet all mandatory parameters and are direct substitutes for the obsolete L2004V8TP.

Parameter Comparison

Engineering Selection Recommendations

L4004V8TP (400 V Rating): This substitute is active in production and ROHS3 compliant. It provides a 2× voltage margin over the original L2004V8TP while maintaining identical gate trigger and current specifications. Selection is appropriate for applications where the circuit voltage does not exceed 400 V.

L6004V8TP (600 V Rating): This substitute is active in production and ROHS3 compliant with REACH Unaffected status. It provides a 3× voltage margin over the original L2004V8TP. Selection is appropriate for applications requiring maximum voltage protection or where circuit voltage may approach 400 V.

Both substitutes are functionally compatible with the L2004V8TP in applications operating at or below 200 V. The choice between L4004V8TP and L6004V8TP depends on the maximum voltage present in the target circuit.

Frequently Asked Questions (FAQ)

Q: Can L4004V8TP or L6004V8TP be used in place of L2004V8TP?

A: Yes. Both substitutes maintain identical gate trigger voltage (1.3 V max), gate trigger current (10 mA max), hold current (15 mA max), on-state current (4 A max), and operating temperature range (-40°C ~ 110°C). The higher voltage ratings provide backward compatibility with 200 V applications.

Q: What is the difference between L4004V8TP and L6004V8TP?

A: The primary difference is the off-state voltage rating: L4004V8TP is rated for 400 V, while L6004V8TP is rated for 600 V. All other electrical and mechanical parameters are identical. Selection depends on the maximum voltage in the target circuit.

Q: Are the packages identical?

A: Yes. All three parts use the TO-251-3 Short Leads package (IPak, TO-251AA) with through-hole mounting. No PCB layout modifications are required.

Q: What is the compliance status of the substitute parts?

A: Both L4004V8TP and L6004V8TP are ROHS3 compliant. L6004V8TP additionally carries REACH Unaffected status.

Q: Why is the L2004V8TP obsolete?

A: The L2004V8TP is classified as obsolete. The L4004V8TP and L6004V8TP are active production parts from the same manufacturer and family, offering superior voltage ratings with identical functional characteristics.