Q8008L5TP TRIAC 800V 8A Equivalent & Substitute Parts

Part Overview

The Q8008L5TP is a Standard TRIAC manufactured by Littelfuse Inc., rated for 800V off-state voltage and 8A on-state current in a TO-220 Isolated Tab package. This component is Active in product status and RoHS3 compliant. Substitute parts are identified based on matching electrical specifications and mechanical compatibility within the 800V TRIAC category, enabling direct replacement in applications where the primary part is unavailable or inventory constraints require alternative sourcing.

Substiute Parts

Q8008L5TP

Littelfuse Inc.In Stock: 2751Q8008L5TP Datasheet

Current PartRFQ

BTA06-800BWRG

STMicroelectronicsIn Stock: 1393BTA06-800BWRG Datasheet

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BTA08-800CRG

STMicroelectronicsIn Stock: 3640BTA08-800CRG Datasheet

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BTA10-800BWRG

STMicroelectronicsIn Stock: 900422BTA10-800BWRG Datasheet

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BTA12-800BWRG

STMicroelectronicsIn Stock: 22275BTA12-800BWRG Datasheet

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BTA12-800CWRG

STMicroelectronicsIn Stock: 1949BTA12-800CWRG Datasheet

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BTA24-800BWRG

STMicroelectronicsIn Stock: 4780BTA24-800BWRG Datasheet

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BTA24-800CWRG

STMicroelectronicsIn Stock: 2604BTA24-800CWRG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Q8008L5TP is determined by the following critical parameters:

• Voltage - Off State: Must equal 800V
• Current - On State (It RMS Max): Must equal or exceed 8A
• Voltage - Gate Trigger (Vgt Max): Must equal 1.3V
• Operating Temperature Range: Must match -40°C ~ 125°C (TJ)
• Mounting Type: Must be Through Hole
• Package Compatibility: TO-220 series packages (TO-220-3, TO-220-3 Isolated Tab, TO-220AB Insulated)
• Configuration: Single configuration only
• Compliance: RoHS3 compliant, REACH Unaffected

Substitute parts are grouped into two categories based on TRIAC type: Standard TRIACs (matching the Q8008L5TP classification) and Alternistor - Snubberless variants (enhanced performance alternatives). All listed substitutes maintain the 800V voltage rating and support the required gate trigger specifications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and RoHS3 compliance, ensuring regulatory alignment with the Q8008L5TP. Selection between substitutes depends on application current requirements:

Direct Current Rating Match (8A): BTA08-800CRG provides equivalent on-state current specification as a Standard TRIAC from STMicroelectronics. This part maintains identical gate trigger voltage and operating temperature range.

Higher Current Capacity: BTA10-800BWRG, BTA12-800BWRG, BTA12-800CWRG, BTA24-800BWRG, and BTA24-800CWRG offer increased on-state current ratings (10A, 12A, and 25A respectively) for applications requiring higher current handling. These parts are classified as Alternistor - Snubberless variants, representing enhanced TRIAC technology within the 800V rating class.

Lower Current Capacity: BTA06-800BWRG is rated for 6A on-state current and is suitable only for applications where the design current requirement does not exceed 6A.

All substitute parts are packaged in TO-220 series configurations compatible with through-hole mounting. Package variations (TO-220-3 standard vs. TO-220AB Insulated) do not affect electrical substitution eligibility but may require mechanical layout verification.

Frequently Asked Questions (FAQ)

Q: Can BTA06-800BWRG replace Q8008L5TP in all applications?

A: No. BTA06-800BWRG is rated for 6A maximum on-state current, while Q8008L5TP is rated for 8A. Substitution is valid only for applications where the design current does not exceed 6A. Exceeding this rating may cause component failure.

Q: What is the difference between Standard TRIAC and Alternistor - Snubberless types?

A: Both types operate at 800V with matching gate trigger specifications. Alternistor - Snubberless variants represent an enhanced TRIAC technology classification from STMicroelectronics. Electrical substitution is based on matching voltage, current, and gate trigger parameters, not TRIAC type designation.

Q: Are TO-220-3 and TO-220-3 Isolated Tab packages mechanically interchangeable?

A: Both are TO-220 series packages suitable for through-hole mounting. The Isolated Tab variant in Q8008L5TP provides electrical isolation of the tab from the mounting surface. Mechanical compatibility depends on circuit board layout and thermal management requirements. Verify mounting hole spacing and tab isolation requirements before substitution.

Q: Can I use BTA24-800BWRG as a direct replacement for Q8008L5TP?

A: Yes, from an electrical standpoint. BTA24-800BWRG maintains the 800V voltage rating, 1.3V gate trigger voltage, and -40°C to 125°C operating temperature range. The 25A on-state current rating exceeds the 8A requirement, making it electrically compatible. However, verify that the application circuit design does not depend on the specific current rating of the original part.

Q: What compliance certifications apply to all listed substitute parts?

A: All substitute parts are RoHS3 compliant and REACH Unaffected, matching the regulatory status of Q8008L5TP. All parts maintain Active product status, ensuring continued availability and support from manufacturers.

Q: How do gate trigger current (Igt) variations affect substitution?

A: Gate trigger current specifications vary among substitutes (25mA to 50mA maximum). These variations reflect different TRIAC designs but do not prevent electrical substitution. Verify that the gate drive circuit in your application can supply the required gate trigger current for the selected substitute part.