L4004V3 Equivalent & Substitute Parts

Part Overview

The L4004V3 is a Logic - Sensitive Gate TRIAC rated for 400 V off-state voltage and 4 A on-state current, packaged in TO-251 through-hole configuration. This component is discontinued at DiGi Electronics, making identification of active equivalent parts essential for ongoing design support and procurement. The L4004V3TP serves as the direct functional equivalent with identical electrical specifications and improved availability.

Substiute Parts

L4004V3

Littelfuse Inc.In Stock: 1110L4004V3 Datasheet

Current PartRFQ

L4004V3TP

Littelfuse Inc.In Stock: 2120L4004V3TP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L4004V3 is determined by strict equivalence across the following critical parameters:

• Triac Type: Logic - Sensitive Gate
• Voltage - Off State: 400 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
• Current - Non Rep. Surge 50, 60Hz (Itsm): 33 A, 40 A
• Operating Temperature Range: -40°C ~ 110°C (TJ)
• Mounting Type: Through Hole
• Package / Case: TO-251-3 Short Leads, IPak, TO-251AA
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The L4004V3TP is classified as a direct manufacturer equivalent. It maintains identical electrical and thermal specifications while differing only in packaging format (Tube vs. standard packaging) and product status (Active vs. Discontinued).

Parameter Comparison

Engineering Selection Recommendations

The L4004V3TP is the direct equivalent for L4004V3 applications. Both parts are manufactured by Littelfuse Inc. and maintain identical electrical, thermal, and mechanical specifications. The L4004V3TP is currently in active production status with higher inventory availability (2034 Pcs vs. 1058 Pcs), making it the preferred selection for new designs and ongoing procurement.

Both parts comply with ROHS3 standards and carry MSL Level 1 (Unlimited) moisture sensitivity classification, ensuring compatibility with standard handling and storage protocols. The packaging difference (Tube format for L4004V3TP) does not affect electrical performance or board-level integration.

Frequently Asked Questions (FAQ)

Q: Can L4004V3TP be used as a direct replacement for L4004V3?

A: Yes. The L4004V3TP is electrically and mechanically identical to the L4004V3. All critical parameters—voltage rating, current rating, gate trigger specifications, and thermal range—are equivalent. The only differences are product status (Active vs. Discontinued) and packaging format (Tube).

Q: What is the significance of the packaging format difference?

A: The L4004V3 uses standard packaging while the L4004V3TP uses Tube packaging. This affects order quantities and handling but does not impact electrical performance, pin configuration, or PCB mounting compatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both L4004V3 and L4004V3TP are ROHS3 Compliant and carry MSL Level 1 (Unlimited) classification.

Q: Why is L4004V3 discontinued?

A: The L4004V3 is discontinued at DiGi Electronics. The L4004V3TP remains in active production and is the recommended source for future procurement.

Q: Are there any thermal or electrical performance differences between these parts?

A: No. Both parts operate across the identical temperature range (-40°C ~ 110°C TJ) and maintain identical electrical specifications including voltage rating, current rating, and gate trigger parameters.