L2008L6 Equivalent & Substitute Parts

Part Overview

The L2008L6 is a Logic - Sensitive Gate TRIAC manufactured by Littelfuse Inc., rated for 200 V off-state voltage and 8 A on-state current in a TO-220 Isolated Tab package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part operates across a temperature range of -40°C to 110°C and is ROHS3 compliant with unlimited moisture sensitivity level.

Key Parameters

Parameter	L2008L6 Specification
Triac Type	Logic - Sensitive Gate
Voltage - Off State	200 V
Current - On State (It (RMS)) (Max)	8 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-220-3 Isolated Tab
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the L2008L6 is determined by the following critical parameters:

Triac Type: Logic - Sensitive Gate configuration must be maintained
Current - On State (It (RMS)): Minimum 8 A rating required
Current - Gate Trigger (Igt): Maximum 5 mA specification
Current - Hold (Ih): Maximum 10 mA specification
Mounting Type: Through Hole configuration
Package Compatibility: TO-220 family packages with isolated tab variants acceptable

The substitute parts BT137X-600D,127 and BTA08-600TWRG both meet these core electrical and mechanical requirements. Both are active products with higher voltage ratings (600 V), which provides enhanced design margin for applications previously using the 200 V L2008L6.

Parameter Comparison

Parameter	L2008L6	BT137X-600D,127	BTA08-600TWRG
Manufacturer	Littelfuse Inc.	WeEn Semiconductors	STMicroelectronics
Product Status	Obsolete	Active	Active
Triac Type	Logic - Sensitive Gate	Logic - Sensitive Gate	Logic - Sensitive Gate
Voltage - Off State	200 V	600 V	600 V
Current - On State (It (RMS)) (Max)	8 A	8 A	8 A
Voltage - Gate Trigger (Vgt) (Max)	1.3 V	1.5 V	1.3 V
Current - Gate Trigger (Igt) (Max)	5 mA	5 mA	5 mA
Current - Hold (Ih) (Max)	10 mA	10 mA	10 mA
Operating Temperature	-40°C ~ 110°C	125°C (TJ)	-40°C ~ 125°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	TO-220-3 Isolated Tab	TO-220-3 Full Pack, Isolated Tab	TO-220-3
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Both substitute parts are active products with ROHS3 compliance and unlimited moisture sensitivity ratings, providing long-term availability and regulatory alignment. The BTA08-600TWRG from STMicroelectronics maintains the exact gate trigger voltage specification (1.3 V maximum) of the original L2008L6 and supports the full operating temperature range of -40°C to 125°C. The BT137X-600D,127 from WeEn Semiconductors offers a slightly higher gate trigger voltage (1.5 V maximum) and operates to 125°C maximum junction temperature.

Both parts are rated for 600 V off-state voltage, exceeding the original 200 V specification and providing enhanced voltage margin for circuit protection. Current ratings, gate trigger current, and hold current specifications are identical across all three parts, ensuring functional equivalence in gate drive and holding requirements.

Frequently Asked Questions (FAQ)

Q: Can the BT137X-600D,127 or BTA08-600TWRG directly replace the L2008L6 in existing designs?

A: Yes, both substitute parts meet the core electrical specifications: 8 A on-state current, 5 mA maximum gate trigger current, and 10 mA maximum hold current. The higher 600 V off-state voltage rating provides additional design margin. Package compatibility is maintained with TO-220 through-hole mounting and isolated tab configurations.

Q: What is the difference between the two substitute parts?

A: The BTA08-600TWRG maintains the exact 1.3 V maximum gate trigger voltage of the L2008L6, while the BT137X-600D,127 specifies 1.5 V maximum. The BTA08-600TWRG supports the full -40°C to 125°C operating range, while the BT137X-600D,127 specifies 125°C maximum junction temperature. Both are active products with equivalent availability and compliance status.

Q: Are there package differences between these parts?

A: The L2008L6 uses TO-220-3 Isolated Tab. The BT137X-600D,127 is available in TO-220-3 Full Pack with Isolated Tab option. The BTA08-600TWRG uses standard TO-220-3 package. All three are through-hole mounted and mechanically compatible with standard TO-220 footprints.

Q: Why is the L2008L6 obsolete?

A: The L2008L6 is classified as obsolete by the manufacturer. The substitute parts BT137X-600D,127 and BTA08-600TWRG are active products from major semiconductor manufacturers, ensuring continued availability and support for new designs and production requirements.

Q: Do the substitute parts have the same compliance certifications?

A: Yes, all three parts are ROHS3 compliant with MSL rating of 1 (Unlimited). The BTA08-600TWRG is REACH Unaffected, while the BT137X-600D,127 is REACH Affected. Both substitute parts carry EAR99 ECCN classification matching the original part.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message