L6006R6 TRIAC Equivalent & Substitute Parts

Part Overview

The L6006R6 is a logic-sensitive gate TRIAC manufactured by Littelfuse Inc., rated for 600 V off-state voltage and 6 A on-state current in a TO-220-3 through-hole package. This component is discontinued at DiGi Electronics, making equivalent 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	-40°C ~ 110°C (TJ)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the L6006R6 is determined by the following critical parameters:

Voltage Rating: Off-state voltage must be 600 V
Current Rating: On-state current (It (RMS)) must be 6 A or higher
Gate Trigger Characteristics: Voltage gate trigger (Vgt) and current gate trigger (Igt) must match or be compatible with the original specification
Package: TO-220-3 through-hole configuration required
Triac Type: Logic-sensitive gate classification
Compliance: ROHS3 compliance required

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

Category 1 - Direct Current Match (6 A): Parts with identical 6 A on-state current rating

BTA06-600TRG (STMicroelectronics)
BTA06-600TWRG (STMicroelectronics)
BTB06-600TWRG (STMicroelectronics)

Category 2 - Higher Current Rating (8 A): Parts with increased on-state current capacity

BT137-600D,127 (WeEn Semiconductors)

Parameter Comparison

Parameter	L6006R6 (Littelfuse)	BTA06-600TRG (STMicroelectronics)	BTA06-600TWRG (STMicroelectronics)	BTB06-600TWRG (STMicroelectronics)	BT137-600D,127 (WeEn)
Voltage - Off State	600 V	600 V	600 V	600 V	600 V
Current - On State (It (RMS)) (Max)	6 A	6 A	6 A	6 A	8 A
Voltage - Gate Trigger (Vgt) (Max)	1.3 V	1.3 V	1.3 V	1.3 V	1.5 V
Current - Gate Trigger (Igt) (Max)	5 mA	5 mA	5 mA	5 mA	5 mA
Current - Hold (Ih) (Max)	10 mA	10 mA	10 mA	10 mA	10 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	50A, 60A	60A, 63A	60A, 63A	60A, 63A	65A, 71A
Operating Temperature (TJ)	-40°C ~ 110°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3
Supplier Device Package	TO-220	TO-220	TO-220	TO-220	TO-220AB
Product Status	Discontinued at DiGi Electronics	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

BTA06-600TRG, BTA06-600TWRG, and BTB06-600TWRG are direct substitutes for the L6006R6. All three parts are manufactured by STMicroelectronics, maintain active product status, and provide identical electrical characteristics at the 6 A current rating. These parts feature extended operating temperature ranges (-40°C to 125°C) compared to the original L6006R6 (-40°C to 110°C), providing improved thermal margin. All substitute parts maintain ROHS3 compliance and MSL 1 rating.

BT137-600D,127 is a higher-current alternative manufactured by WeEn Semiconductors. This part provides 8 A on-state current capacity with a gate trigger voltage of 1.5 V (compared to 1.3 V for the L6006R6). The BT137-600D,127 is suitable for applications requiring increased current headroom while maintaining the 600 V voltage rating and TO-220-3 package configuration. This part is also active and ROHS3 compliant.

All substitute parts are available in active production status with established inventory levels, ensuring long-term procurement viability.

Frequently Asked Questions (FAQ)

Q: Can BTA06-600TRG, BTA06-600TWRG, and BTB06-600TWRG be used interchangeably with the L6006R6?

A: Yes. These three STMicroelectronics parts share identical electrical specifications at the 6 A current rating, including voltage ratings, gate trigger characteristics, and hold current. All are packaged in TO-220-3 through-hole configuration and maintain ROHS3 compliance. The primary difference is the extended operating temperature range (125°C vs. 110°C maximum junction temperature).

Q: When should BT137-600D,127 be selected instead of the direct 6 A substitutes?

A: BT137-600D,127 should be selected when the application requires higher current capacity (8 A vs. 6 A) or when the slightly higher gate trigger voltage (1.5 V vs. 1.3 V) is acceptable. This part provides additional thermal and electrical margin for demanding applications.

Q: Are all substitute parts compatible with the original PCB layout?

A: Yes. All substitute parts use the TO-220-3 through-hole package, maintaining identical pin configuration and mechanical footprint compatibility with the L6006R6.

Q: What is the difference between BTA06-600TRG, BTA06-600TWRG, and BTB06-600TWRG?

A: These three parts share identical electrical specifications and ratings. The differences are in manufacturer part number designation and base product series (BTA06 vs. BTB06). Selection among these three can be based on availability and supplier preference.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the compliance profile of the original L6006R6.

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