Snubberless, logic level and standard 8 A Triacs -
Document overview
- Manufacturer or author: STMICROELECTRONICS
- PDF pages: 18
Technical content
Features
- On-state rms current, IT(RMS) 8 A
- Repetitive peak off-state voltage, VDRM / VRRM 600 V to 800 V
- Triggering gate current, IGT 5 to 50 mA
Description
Available either in through-hole and surface-mount packages, these devices are suitable for general purpose AC switching. They can be used as an ON/OFF function in applications such as static relays, heating regulation, induction motor starting circuits or for phase control operation in light dimmers and motor speed controllers, etc. The Snubberless versions (BTA, BTB08_xxxxW and T8 series) are specially recommended for use on inductive loads, thanks to their high commutation performance. Logic level versions are designed to interface directly with low power drivers such as Microcontrollers. By using an internal ceramic pad, the BTA series provide voltage insulated tab (rated at 2500 VRMS) in compliance with UL standards (file ref.: E81734). D²PAK TO-220AB TO-220AB Ins. DPAKIPAK G G A2 G G G G Product status link BTA08 BTB08 T810 T835 T850 Snubberless, logic level and standard 8 A Triacs BTA08, BTB08, T810 T835, T850 DS2114 - Rev 16 - June 2026 For further information, contact your local STMicroelectronics sales office.
1 Characteristics
Table 1. Absolute maximum ratings (Tj = 25 °C unless otherwise stated) Table 2. Electrical characteristics (Tj = 25 °C, unless otherwise specified) Snubberless and logic level (3
- Minimum IGT is guaranteed at 5 % of IGT max.
- For both polarities of A2 referenced to A1
Table 3. Standard (4 quadrants)
- Minimum IGT is guaranteed at 5 % of IGT max.
- For both polarities of A2 referenced to A1
Table 4. Static electrical characteristics
- For both polarities of A2 referenced to A1
Table 5. Thermal resistance
- S = Copper surface under tab.
1.1 Characteristics (curves)
Figure 1. Maximum power dissipation versus on-state Figure 2. RMS on-state current versus temperature Figure 3. RMS on-state current versus ambient Figure 4. Relative variation of thermal impedance versus Figure 5. On-state characteristics (maximum values) Figure 6. Surge peak on-state current versus number of
2 Package information
To meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions, and product status are available at: www.st.com. ECOPACK is an ST trademark.
2.1 DPAK package information
- Molding compouned resin is halogen free and meets UL94 flammability standard, level V0
- Lead-free package
Figure 13. DPAK package outline
Package information
Table 6. DPAK package mechanical data
- Dimensions in inches are given for reference only
Figure 14. DPAK recommended footprint (dimensions are in mm)
2.2 IPAK package information
- Molding compouned resin is halogen free and meets UL94 flammability standard, level V0
- Lead-free package leads plating
Figure 15. IPAK package outline
Table 7. IPAK package mechanical data
2.3 TO-220AB package information
- Epoxy resin is halogen free and meets UL94 flammability standard, level V0
- Lead-free plating package leads
- ECOPACK2 compliant
- Recommended torque value: 0.55 N·m
- Maximum torque value: 0.70 N·m
Figure 16. TO-220AB insulated package outline DS2114 - Rev 16 page 10/18
Table 8. TO-220AB insulated package mechanical data
- Inch dimensions are for reference only.
DS2114 - Rev 16 page 11/18
2.4 D²PAK package information
- Molding compouned resin is halogen free and meets UL94 flammability standard, level V0
- Lead-free package leads plating
Figure 17. D²PAK package outline (1) Resin gate is accepted in each of position shown on the drawing, or their symmetrical. DS2114 - Rev 16 page 12/18
Table 9. D²PAK package mechanical data
- Dimensions in inches are given for reference only
Figure 18. D²PAK recommended footprint (dimensions are in mm) DS2114 - Rev 16 page 13/18
3 Ordering information
Figure 19. Ordering information scheme (BTA08 and BTB08 series) Figure 20. Ordering information scheme (T8 series)
Ordering information
DS2114 - Rev 16 page 14/18
3.1 Product selector
Table 10. Product selector BTA08-xxxS X 10 mA Logic Level TO-220AB Ins. BTA08-xxxC X X 35 mA Standard TO-220AB Ins. BTA08-xxxB X 50 mA Standard TO-220AB Ins. BTA08-xxxTW X 5 mA Logic Level TO-220AB Ins. BTA08-xxxSW X 10 mA Logic Level TO-220AB Ins. BTA08-xxxCW X 35 mA Snubberless TO-220AB Ins. BTA08-xxxBW X X 50 mA Snubberless TO-220AB Ins. DS2114 - Rev 16 page 15/18
3.2 Ordering information
Table 11. Ordering information
75 TubeT835-600B T8 3560
2500 Tape&Reel 13"
50 Tube
1000 Tape&Reel 13"
DS2114 - Rev 16 page 16/18
Revision history
Table 12. Document revision history 07-Nov-2016 9 Updated Table 1 and reformatted to current standard. "Product selector" and Table 11: "Ordering information". 09-Feb-2017 11 Added T850 package information. Minor text changes to improve readability. specified) Snubberless and logic level (3 quadrants), cover image, Figure 9. (typical values) and Figure 20. Ordering information scheme (T8 series). 14-May-2018 14 Updated product status links. 09-Aug-2018 15 Updated Table 3. Standard (4 quadrants). 05-Jun-2026 16 Updated Section 2: Package information.
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