L6006L6 TRIAC Equivalent & Substitute Parts

Part Overview

The L6006L6 is a Logic - Sensitive Gate TRIAC rated for 600 V off-state voltage and 6 A on-state current, manufactured by Littelfuse Inc. in a TO-220-3 Isolated Tab package. This component is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Voltage - Off State	600 V
Current - On State (It (RMS)) (Max)	6 A
Voltage - Gate Trigger (Vgt) (Max)	1.3 V
Current - Gate Trigger (Igt) (Max)	5 mA
Current - Hold (Ih) (Max)	10 mA
Triac Type	Logic - Sensitive Gate
Package / Case	TO-220-3
Mounting Type	Through Hole
Operating Temperature Range	-40°C ~ 110°C (TJ)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the L6006L6 is determined by the following electrical and mechanical parameters:

Voltage Rating: Off-state voltage must be 600 V or higher
Current Rating: On-state current must meet or exceed 6 A
Gate Characteristics: Voltage and current trigger parameters must be compatible with the original design
Package Compatibility: TO-220 package variants (standard, full pack, isolated tab) are mechanically compatible
Triac Type: Logic - Sensitive Gate type preferred for direct replacement; Standard type acceptable if gate parameters are within design tolerance
Compliance: ROHS3 compliance required

Substitute parts are grouped by current rating and gate sensitivity to facilitate selection based on design requirements.

Parameter Comparison

Parameter	L6006L6 (Main)	BTA06-600TWRG	BT137X-600D,127	BTA08-600SWRG	BTA10-600CRG
Manufacturer	Littelfuse Inc.	STMicroelectronics	WeEn Semiconductors	STMicroelectronics	STMicroelectronics
Voltage - Off State	600 V	600 V	600 V	600 V	600 V
Current - On State (It (RMS)) (Max)	6 A	6 A	8 A	8 A	10 A
Voltage - Gate Trigger (Vgt) (Max)	1.3 V	1.3 V	1.5 V	1.3 V	1.3 V
Current - Gate Trigger (Igt) (Max)	5 mA	5 mA	5 mA	10 mA	25 mA
Current - Hold (Ih) (Max)	10 mA	10 mA	10 mA	15 mA	25 mA
Triac Type	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate	Standard
Package / Case	TO-220-3 Isolated Tab	TO-220-3	TO-220-3 Full Pack, Isolated Tab	TO-220-3	TO-220-3
Operating Temperature Range	-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)
Product Status	Discontinued	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent (Preferred): BTA06-600TWRG (STMicroelectronics) is the closest direct equivalent. It matches the L6006L6 in current rating (6 A), gate trigger voltage (1.3 V), and gate trigger current (5 mA). It is active in production, ROHS3 compliant, and rated for extended operating temperature (-40°C ~ 125°C). The TO-220-3 package is mechanically compatible.

Higher Current Alternatives: BTA08-600SWRG (STMicroelectronics) and BT137X-600D,127 (WeEn Semiconductors) provide 8 A current capacity with the same 600 V voltage rating. Both are Logic - Sensitive Gate types with active product status and ROHS3 compliance. BTA08-600SWRG maintains the 1.3 V gate trigger voltage of the original. BT137X-600D,127 has a slightly higher gate trigger voltage (1.5 V) but offers full pack isolation in the TO-220F package variant.

Standard Gate Type Alternative: BTA10-600CRG (STMicroelectronics) provides 10 A current capacity but uses Standard gate type with higher gate trigger parameters (Vgt 1.3 V, Igt 25 mA, Ih 25 mA). This part is suitable only if the design can accommodate higher gate drive requirements.

All substitute parts are ROHS3 compliant and available in active production status.

Frequently Asked Questions (FAQ)

Q: Can BTA06-600TWRG directly replace L6006L6? A: Yes. BTA06-600TWRG is electrically and mechanically compatible. Both are 600 V, 6 A Logic - Sensitive Gate TRIACs with identical gate trigger specifications (Vgt 1.3 V, Igt 5 mA). The TO-220-3 package is compatible with the original TO-220-3 Isolated Tab footprint.

Q: What is the difference between BTA08-600SWRG and BT137X-600D,127? A: Both are 8 A, 600 V Logic - Sensitive Gate TRIACs. BTA08-600SWRG uses standard TO-220 packaging with 1.3 V gate trigger voltage. BT137X-600D,127 uses TO-220F (full pack) packaging with 1.5 V gate trigger voltage. The higher gate trigger voltage in BT137X-600D,127 may require increased gate drive current in the circuit.

Q: Why is BTA10-600CRG listed as a substitute if it has different gate parameters? A: BTA10-600CRG is a Standard gate type TRIAC, not Logic - Sensitive Gate. It provides higher current capacity (10 A) but requires higher gate drive (Igt 25 mA, Ih 25 mA). It is suitable only for designs that can accommodate these higher gate requirements or where increased current margin is beneficial.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts (BTA06-600TWRG, BT137X-600D,127, BTA08-600SWRG, BTA10-600CRG) are ROHS3 compliant.

Q: What is the operating temperature difference between L6006L6 and the substitutes? A: L6006L6 is rated -40°C ~ 110°C. All substitute parts are rated -40°C ~ 125°C, providing extended high-temperature operation capability.

Q: Can I use a higher current rated TRIAC in place of the 6 A L6006L6? A: Yes, if the circuit design permits. Higher current rated parts (8 A or 10 A) are backward compatible in applications where the original 6 A rating was not a limiting factor. Verify that gate drive circuits can supply the required gate trigger current for the selected substitute.

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