L6008R6 TRIAC Equivalent & Substitute Parts

Part Overview

The L6008R6 is a Logic-Sensitive Gate TRIAC manufactured by Littelfuse Inc., rated for 600V off-state voltage and 8A on-state current in a TO-220-3 through-hole package. This component is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing design support and procurement. The part operates across a temperature range of -40°C to 110°C and is RoHS3 compliant with MSL Level 1 rating.

Key Parameters

Parameter	L6008R6 Value
Triac Type	Logic - Sensitive Gate
Voltage - Off State	600 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
Current - Non Rep. Surge (50/60Hz)	65A / 85A
Operating Temperature Range	-40°C ~ 110°C
Package / Case	TO-220-3
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following critical parameters:

Voltage Rating (Off State): Must be 600V minimum
Triac Type: Must be Logic - Sensitive Gate configuration
Package / Case: Must be TO-220-3 through-hole
Gate Trigger Characteristics: Vgt and Igt values must be compatible with existing gate drive circuitry
On-State Current Rating: Determines load-carrying capability; higher ratings provide design margin

Substitute parts are grouped into two categories based on on-state current rating:

Category A (8A Rating - Direct Current Match): BTA08-600TWRG, BTB08-600TWRG

Identical 8A on-state current specification
Matching Vgt (1.3V) and Igt (5mA) gate trigger parameters
Suitable for direct replacement in existing designs

Category B (12A Rating - Higher Current Capability): BT138-600D,127, BTA312-600D,127, T1210T-6I

Higher 12A on-state current rating provides increased load capacity
Vgt values of 1.3V to 1.5V remain within acceptable gate drive range
Igt values of 5mA to 10mA compatible with standard gate drive circuits
Suitable for designs requiring enhanced current margin or upgraded performance

Parameter Comparison

Part Number	Manufacturer	Voltage - Off State	Current - On State (It RMS Max)	Vgt Max (V)	Igt Max (mA)	Ih Max (mA)	Operating Temp Range	Package	Product Status
L6008R6	Littelfuse Inc.	600V	8A	1.3	5	10	-40°C ~ 110°C	TO-220-3	Discontinued
BTA08-600TWRG	STMicroelectronics	600V	8A	1.3	5	10	-40°C ~ 125°C	TO-220-3	Active
BTB08-600TWRG	STMicroelectronics	600V	8A	1.3	5	10	-40°C ~ 125°C	TO-220-3	Active
BT138-600D,127	NXP USA Inc.	600V	12A	1.5	5	10	-40°C ~ 125°C	TO-220-3	Active
BTA312-600D,127	WeEn Semiconductors	600V	12A	1.5	5	10	-40°C ~ 125°C	TO-220-3	Active
T1210T-6I	STMicroelectronics	600V	12A	1.3	10	10	-40°C ~ 125°C	TO-220-3	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance)

BTA08-600TWRG and BTB08-600TWRG are functionally equivalent to L6008R6, maintaining identical on-state current (8A), gate trigger voltage (1.3V), and gate trigger current (5mA) specifications. Both parts are manufactured by STMicroelectronics with Active product status, RoHS3 compliance, and extended operating temperature range to 125°C. These parts are suitable for designs where the original 8A rating is specified and no performance upgrade is required.

For Enhanced Current Capability

BT138-600D,127, BTA312-600D,127, and T1210T-6I provide 12A on-state current rating, offering increased design margin for applications approaching the 8A limit. All three maintain 600V voltage rating and TO-220-3 package compatibility. BT138-600D,127 (NXP) and BTA312-600D,127 (WeEn) feature matching 1.5V gate trigger voltage, while T1210T-6I (STMicroelectronics) maintains the original 1.3V specification. All substitute parts are Active status with RoHS compliance and 125°C maximum operating temperature.

Compliance and Availability

All substitute parts meet RoHS3 or RoHS compliance requirements and carry MSL Level 1 rating. Inventory availability ranges from 959 to 10,300 units across substitute options, ensuring procurement feasibility for production volumes.

Frequently Asked Questions (FAQ)

Q: Can BTA08-600TWRG or BTB08-600TWRG be used as direct replacements for L6008R6?

A: Yes. Both parts are electrically and mechanically equivalent, with identical 8A on-state current, 1.3V gate trigger voltage, 5mA gate trigger current, and TO-220-3 package. The extended operating temperature range (-40°C to 125°C versus -40°C to 110°C) provides additional thermal margin.

Q: What is the difference between the 8A and 12A substitute options?

A: The 8A options (BTA08-600TWRG, BTB08-600TWRG) maintain the original current rating for designs with established thermal and circuit analysis. The 12A options (BT138-600D,127, BTA312-600D,127, T1210T-6I) provide 50% higher current capacity, suitable for applications requiring increased load margin or future design upgrades.

Q: Are gate trigger parameters compatible across all substitutes?

A: Gate trigger voltage (Vgt) ranges from 1.3V to 1.5V across substitutes, and gate trigger current (Igt) ranges from 5mA to 10mA. These variations remain within standard gate drive circuit tolerances. Designs using standard optocoupler or microcontroller gate drive circuits will function with all listed substitutes.

Q: Do all substitutes use the same TO-220-3 package?

A: Yes. All substitute parts use TO-220-3 through-hole package with identical pin configuration and PCB footprint compatibility. Mechanical mounting and thermal interface requirements are equivalent.

Q: Which substitute offers the best long-term availability?

A: T1210T-6I (STMicroelectronics) shows the highest inventory level at 10,300 units, indicating strong production support and long-term availability. BTA08-600TWRG and BTB08-600TWRG (both STMicroelectronics) also demonstrate active production status with substantial inventory.

Q: Are all substitutes RoHS compliant?

A: Yes. All substitute parts are RoHS3 or RoHS compliant with MSL Level 1 moisture sensitivity rating, meeting current environmental and reliability standards.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message