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L6008L8TP TRIAC Equivalent & Substitute Parts
Part Overview
The L6008L8TP is a Logic - Sensitive Gate TRIAC manufactured by Littelfuse Inc., rated for 600 V off-state voltage and 8 A on-state current in a TO-220 Isolated Tab package. This component is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical performance can be maintained within the specified parameter ranges while accommodating different TRIAC architectures (Logic - Sensitive Gate, Alternistor - Snubberless, or Standard types) and current ratings that meet or exceed application requirements.
Substiute Parts
Key Parameters
| Parameter | L6008L8TP |
|---|---|
| Manufacturer | Littelfuse Inc. |
| 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) | 10 mA |
| Current - Hold (Ih) (Max) | 20 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 of the L6008L8TP is determined by the following criteria:
Voltage Rating: All substitute parts maintain 600 V off-state voltage, matching the primary requirement.
Current Rating: Substitute parts are grouped by on-state current capacity. Parts rated at 8 A or higher (BTA08-600CWRG, BTA10-600BRG, BTA10-600CRG, BTA12-600BRG, BTA12-600CRG, BTA12-600CWRG, BTA12-600TWRG) provide equivalent or superior current handling. Parts rated at 6 A (BTA06-600BWRG, BTA06-600CWRG, BTA06-600TWRG) are suitable only for applications requiring 6 A or less.
Gate Trigger Parameters: The L6008L8TP specifies Vgt (Max) of 1.3 V and Igt (Max) of 10 mA. All substitute parts maintain Vgt (Max) of 1.3 V. Igt values vary by TRIAC type: Logic - Sensitive Gate variants (BTA06-600TWRG, BTA12-600TWRG) feature 5 mA; Alternistor - Snubberless variants (BTA06-600BWRG, BTA06-600CWRG, BTA08-600CWRG, BTA12-600CWRG) feature 35 mA; Standard variants (BTA10-600BRG, BTA10-600CRG, BTA12-600BRG, BTA12-600CRG) feature 25-50 mA.
TRIAC Type: The L6008L8TP is Logic - Sensitive Gate architecture. Substitute parts include alternative architectures (Alternistor - Snubberless and Standard) that may exhibit different switching characteristics and EMI performance.
Package Compatibility: All substitute parts use TO-220-3 package format compatible with through-hole mounting. BTA12-600CRG uses TO-220AB Insulated variant; BTA06-600BWRG, BTA06-600CWRG, BTA06-600TWRG, BTA08-600CWRG, BTA10-600BRG, BTA10-600CRG, BTA12-600BRG, BTA12-600CWRG, BTA12-600TWRG use standard TO-220-3.
Parameter Comparison
| Part Number | Manufacturer | TRIAC Type | Voltage - Off State | Current - On State (Max) | Vgt (Max) | Igt (Max) | Ih (Max) | Operating Temperature | Package |
|---|---|---|---|---|---|---|---|---|---|
| L6008L8TP | Littelfuse Inc. | Logic - Sensitive Gate | 600 V | 8 A | 1.3 V | 10 mA | 20 mA | -40°C ~ 110°C | TO-220-3 Isolated Tab |
| BTA06-600BWRG | STMicroelectronics | Alternistor - Snubberless | 600 V | 6 A | 1.3 V | 50 mA | 50 mA | -40°C ~ 125°C | TO-220-3 |
| BTA06-600CWRG | STMicroelectronics | Alternistor - Snubberless | 600 V | 6 A | 1.3 V | 35 mA | 35 mA | -40°C ~ 125°C | TO-220-3 |
| BTA06-600TWRG | STMicroelectronics | Logic - Sensitive Gate | 600 V | 6 A | 1.3 V | 5 mA | 10 mA | -40°C ~ 125°C | TO-220-3 |
| BTA08-600CWRG | STMicroelectronics | Alternistor - Snubberless | 600 V | 8 A | 1.3 V | 35 mA | 35 mA | -40°C ~ 125°C | TO-220-3 |
| BTA10-600BRG | STMicroelectronics | Standard | 600 V | 10 A | 1.3 V | 50 mA | 50 mA | -40°C ~ 125°C | TO-220-3 |
| BTA10-600CRG | STMicroelectronics | Standard | 600 V | 10 A | 1.3 V | 25 mA | 25 mA | -40°C ~ 125°C | TO-220-3 |
| BTA12-600BRG | STMicroelectronics | Standard | 600 V | 12 A | 1.3 V | 50 mA | 50 mA | -40°C ~ 125°C | TO-220-3 |
| BTA12-600CRG | STMicroelectronics | Standard | 600 V | 12 A | 1.3 V | 25 mA | 25 mA | -40°C ~ 125°C | TO-220AB Insulated |
| BTA12-600CWRG | STMicroelectronics | Alternistor - Snubberless | 600 V | 12 A | 1.3 V | 35 mA | 35 mA | -40°C ~ 125°C | TO-220-3 |
| BTA12-600TWRG | STMicroelectronics | Logic - Sensitive Gate | 600 V | 12 A | 1.3 V | 5 mA | 10 mA | -40°C ~ 125°C | TO-220-3 |
Engineering Selection Recommendations
All listed substitute parts are Active status and ROHS3 compliant, meeting regulatory requirements equivalent to the L6008L8TP. STMicroelectronics BTA series parts extend operating temperature range to -40°C ~ 125°C compared to the L6008L8TP range of -40°C ~ 110°C, providing additional thermal margin in high-temperature applications.
For direct functional replacement maintaining Logic - Sensitive Gate architecture and 8 A current rating, BTA08-600CWRG provides equivalent voltage and current specifications with Alternistor - Snubberless technology. For applications requiring Logic - Sensitive Gate sensitivity with higher current capacity, BTA12-600TWRG offers 12 A rating while maintaining 5 mA gate trigger current.
For applications where current rating can be reduced to 6 A, BTA06-600TWRG maintains Logic - Sensitive Gate architecture with lower gate trigger current (5 mA) and extended temperature range. For applications requiring higher current capacity without sensitivity gate requirements, Standard type parts (BTA10-600CRG, BTA12-600CRG, BTA12-600BRG) provide 10-12 A ratings with 600 V voltage specification.
Frequently Asked Questions (FAQ)
Q: Can BTA06-600TWRG replace L6008L8TP in all applications?
A: BTA06-600TWRG is suitable only for applications where on-state current does not exceed 6 A. The L6008L8TP is rated for 8 A maximum; applications requiring full 8 A capacity must use BTA08-600CWRG or higher-rated alternatives.
Q: What is the difference between Logic - Sensitive Gate and Alternistor - Snubberless TRIAC types?
A: Logic - Sensitive Gate TRIACs (L6008L8TP, BTA06-600TWRG, BTA12-600TWRG) feature lower gate trigger current (5-10 mA) suitable for logic-level gate drive circuits. Alternistor - Snubberless TRIACs (BTA06-600BWRG, BTA06-600CWRG, BTA08-600CWRG, BTA12-600CWRG) feature higher gate trigger current (35-50 mA) and reduced EMI without external snubber networks.
Q: Are all substitute parts compatible with TO-220-3 through-hole mounting?
A: All substitute parts use TO-220-3 package format compatible with standard through-hole PCB layouts. BTA12-600CRG uses TO-220AB Insulated variant, which maintains TO-220-3 pin configuration and through-hole compatibility with insulated mounting tab design.
Q: What is the impact of extended operating temperature range on part selection?
A: STMicroelectronics BTA series parts operate to -40°C ~ 125°C compared to L6008L8TP range of -40°C ~ 110°C. Applications operating above 110°C junction temperature require BTA series substitutes to maintain specified electrical characteristics within rated temperature range.
Q: Can Standard type TRIACs (BTA10, BTA12 series) replace Logic - Sensitive Gate L6008L8TP?
A: Standard type TRIACs feature higher gate trigger current (25-50 mA) compared to Logic - Sensitive Gate architecture (5-10 mA). Substitution is possible only if gate drive circuitry can supply required gate current. Applications with logic-level gate drive must use Logic - Sensitive Gate or Alternistor - Snubberless variants.
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