L6004V6TP TRIAC Equivalent & Substitute Parts

Part Overview

The L6004V6TP is a Logic - Sensitive Gate TRIAC manufactured by Littelfuse Inc., rated for 600 V off-state voltage and 4 A on-state current in a TO-251 through-hole package. This component is Active status and ROHS3 compliant. Equivalent and substitute parts are identified based on matching electrical characteristics and package compatibility to support design flexibility and supply chain continuity.

Key Parameters

Parameter	L6004V6TP
Manufacturer	Littelfuse Inc.
Triac Type	Logic - Sensitive Gate
Voltage - Off State	600 V
Current - On State (It (RMS)) (Max)	4 A
Voltage - Gate Trigger (Vgt) (Max)	1.3 V
Current - Gate Trigger (Igt) (Max)	5 mA
Current - Hold (Ih) (Max)	10 mA
Operating Temperature	-40°C ~ 110°C (TJ)
Package / Case	TO-251-3 Short Leads, IPak, TO-251AA
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the L6004V6TP are grouped based on the following critical parameters that determine functional equivalence:

Voltage - Off State: 600 V (required match)
Current - On State (It (RMS)) (Max): 4 A (required match)
Voltage - Gate Trigger (Vgt) (Max): 1.3 V (required match)
Package / Case: TO-251-3 Short Leads, IPak, TO-251AA (required match)
Mounting Type: Through Hole (required match)
Configuration: Single (required match)

Substitutes are classified into two categories:

Parametric Equivalent: L6004V5TP matches all critical electrical parameters and package specifications with identical operating characteristics.

Manufacturer Recommended Substitutes: T405-600H, T405Q-600H, T410-600H, and T435-600H are STMicroelectronics alternatives that maintain the same voltage, current, and package specifications. Variations in gate trigger current (Igt) and hold current (Ih) are noted where applicable. T435-600H represents an Alternistor - Snubberless variant with different gate characteristics.

Parameter Comparison

Parameter	L6004V6TP	L6004V5TP	T405-600H	T405Q-600H	T410-600H	T435-600H
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics
Triac Type	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate	Alternistor - Snubberless
Voltage - Off State	600 V	600 V	600 V	600 V	600 V	600 V
Current - On State (It (RMS)) (Max)	4 A	4 A	4 A	4 A	4 A	4 A
Voltage - Gate Trigger (Vgt) (Max)	1.3 V	1.3 V	1.3 V	1.3 V	1.3 V	1.3 V
Current - Gate Trigger (Igt) (Max)	5 mA	5 mA	5 mA	5 mA	10 mA	35 mA
Current - Hold (Ih) (Max)	10 mA	10 mA	10 mA	10 mA	15 mA	35 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	33A, 40A	33A, 40A	30A, 31A	35A, 38A	30A, 31A	30A, 31A
Operating Temperature	-40°C ~ 110°C (TJ)	-40°C ~ 110°C (TJ)	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)
Package / Case	TO-251-3 Short Leads, IPak, TO-251AA	TO-251-3 Short Leads, IPak, TO-251AA	TO-251-3 Short Leads, IPak, TO-251AA	TO-251-3 Short Leads, IPak, TO-251AA	TO-251-3 Short Leads, IPak, TO-251AA	TO-251-3 Short Leads, IPak, TO-251AA
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory and supply chain continuity.

L6004V5TP is the direct parametric equivalent from Littelfuse Inc., offering identical electrical specifications and operating temperature range. This part is the primary choice for direct replacement.

T405-600H and T405Q-600H are STMicroelectronics Logic - Sensitive Gate TRIACs with matching core specifications. T405Q-600H uses I-PAK packaging variant. Both support extended operating temperature to 125°C compared to the L6004V6TP maximum of 110°C.

T410-600H is a Logic - Sensitive Gate TRIAC with increased gate trigger current (10 mA) and hold current (15 mA) compared to the L6004V6TP (5 mA and 10 mA respectively). This part is suitable where higher gate drive capability is acceptable.

T435-600H is an Alternistor - Snubberless variant with significantly higher gate trigger current (35 mA) and hold current (35 mA). This part is suitable for applications requiring snubberless operation but requires gate drive circuit compatibility verification.

Frequently Asked Questions (FAQ)

Q: Can L6004V5TP be used as a direct replacement for L6004V6TP?

A: Yes. L6004V5TP is a parametric equivalent with identical voltage, current, gate trigger, and hold specifications. Both are Littelfuse Inc. Logic - Sensitive Gate TRIACs in TO-251 packaging.

Q: What is the difference between T405-600H and T405Q-600H?

A: Both are STMicroelectronics Logic - Sensitive Gate TRIACs with identical electrical specifications. T405Q-600H uses I-PAK packaging, while T405-600H uses TO-251 (IPAK) packaging. Both fit the TO-251-3 Short Leads, IPak, TO-251AA package specification.

Q: Can T410-600H replace L6004V6TP?

A: T410-600H maintains the same voltage (600 V), current (4 A), and gate trigger voltage (1.3 V) specifications. However, gate trigger current is 10 mA versus 5 mA, and hold current is 15 mA versus 10 mA. Substitution is valid if the gate drive circuit can accommodate these higher current requirements.

Q: What makes T435-600H different from other substitutes?

A: T435-600H is an Alternistor - Snubberless variant with gate trigger current of 35 mA and hold current of 35 mA, compared to 5 mA and 10 mA in the L6004V6TP. This part is designed for snubberless applications and requires gate drive circuit compatibility assessment.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (L6004V5TP, T405-600H, T405Q-600H, T410-600H, and T435-600H) are ROHS3 compliant.

Q: What is the operating temperature range difference?

A: L6004V6TP and L6004V5TP operate from -40°C to 110°C. All STMicroelectronics substitutes (T405-600H, T405Q-600H, T410-600H, T435-600H) operate from -40°C to 125°C, providing extended high-temperature capability.

Q: Are all parts available in the same package?

A: All parts use TO-251-3 Short Leads, IPak, TO-251AA package specification. T405Q-600H specifically uses I-PAK variant, while others use TO-251 (IPAK) variant. Both variants conform to the same package specification for through-hole mounting.

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