STMicroelectronics BTA06-800BWRG
- Part No.:
- BTA06-800BWRG
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-220-3
- Datasheet:
-
BTA06-800BWRG.pdf
- Description:
- TRIAC ALTERNISTOR 800V 6A TO220
- Quantity:
- Payment:

- Shipping:

Inventory:929
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Product details
Overview
BTA06-800BWRG from STMicroelectronics is a 6 A, 800 V snubberless logic-level triac in insulated TO-220AB package, rated for 2500 VRMS voltage isolation between tab and terminals. It supports quadrant I/II/III triggering with 5 mA max gate trigger current (IGT), 1.3 V max gate trigger voltage (VGT), and 50 A non-repetitive surge current. Designed for inductive AC load switching in motor controls and heating regulation.
For engineers reviewing the BTA06-800BWRG datasheet, BTA06-800BWRG pinout, BTA06-800BWRG application, or BTA06-800BWRG equivalent, key selection criteria include commutation robustness on inductive loads, gate sensitivity at low drive levels, thermal resistance (Rth(j–c) = 2.7 °C/W), and UL-rated insulated tab compliance.
Technical Context
This triac operates in three-quadrant mode (I/II/III), enabling reliable turn-on with low gate drive-critical for microcontroller-compatible logic-level control. Its snubberless architecture eliminates external RC networks by sustaining high dV/dt (1000 V/µs min) and high critical rate of decrease of main current (dI/dt)c up to 5.3 A/ms without commutation failure.
Thermal design is supported by an insulated copper tab rated at 2500 VRMS and junction-to-case thermal resistance of 2.7 °C/W, allowing 6 A RMS conduction at Tc = 105°C. The device meets ECOPACK® environmental requirements with lead-free second-level interconnect.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 6 A - Sustains continuous AC load current in heating, motor, and relay applications |
| VDRM / VRRM | 800 V - Blocks peak line voltages up to 566 V RMS (e.g., 400 VAC industrial systems) |
| IGT (Q1) | 5 mA max - Enables direct drive from 3.3 V or 5 V GPIO without buffer stage |
| dV/dt (min) | 1000 V/µs - Prevents false triggering during fast transients on inductive loads |
| Rth(j–c) | 2.7 °C/W - Enables thermal management with heatsink sizing based on 105°C case limit |
| VTM (max) | 1.55 V @ 8.5 A - Limits conduction loss to ≤13 W at full RMS current |
| ITSM (50 Hz) | 60 A - Withstands 20 ms short-circuit surges common in motor startup |
Pinout & Package
Package: TO-220AB insulated (voltage-isolated tab, UL E81734 certified, 2500 VRMS isolation).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main terminal 1 | Reference terminal for gate drive; connects to load return or neutral side |
| A2 (MT2) | Main terminal 2 | High-side AC line connection; carries full load current and voltage stress |
| G | Gate | Triggers conduction in quadrants I, II, and III; requires ≥5 mA pulse for reliable turn-on |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless operation | Eliminates external RC snubber components for inductive loads, reducing BOM count and board space |
| Logic-level gate sensitivity | 5 mA max IGT enables direct MCU GPIO interface without level-shifting or amplification |
| UL-certified insulated tab | 2500 VRMS isolation allows safe mounting to grounded heatsinks in Class I safety designs |
| High commutation robustness | (dI/dt)c = 5.3 A/ms at 10 V/µs ensures reliable turn-off under worst-case inductive flyback |
Applications
| Industrial Motor Control | Resistive Heating Regulation |
|---|---|
Use Scenario: Phase-controlled speed regulation of single-phase induction motors in HVAC blowers and pumps. IC Role / Device Role / Timing Role: Main AC power switch controlling conduction angle per half-cycle to adjust average motor torque. Use Value: Snubberless design avoids snubber losses and component stress during motor inductive turn-off transitions. | Use Scenario: Proportional time-based power delivery to ceramic heating elements in laboratory ovens. IC Role / Device Role / Timing Role: ON/OFF switching element executing zero-cross or phase-angle control per AC half-cycle. Use Value: 6 A RMS rating and 800 V blocking support 230 VAC/3 kW resistive loads with margin. |
| Light Dimming Systems | Static Relay Replacement |
Use Scenario: Leading-edge dimming for incandescent and halogen lamps in commercial lighting panels. IC Role / Device Role / Timing Role: Bidirectional AC switch triggered synchronously with zero-cross detection for smooth brightness control. Use Value: 1000 V/µs dV/dt immunity prevents false triggering from lamp filament surge currents. | Use Scenario: Solid-state replacement of electromechanical relays in PLC output modules and building automation controllers. IC Role / Device Role / Timing Role: Isolated AC load switch providing silent, bounce-free, and wear-free switching. Use Value: Insulated tab enables direct heatsink mounting while maintaining functional insulation per IEC 61000-4-5. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triac switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTB06-800BWRG | Non-insulated TO-220AB package; no 2500 VRMS tab isolation | Requires insulated mounting hardware for safety-critical AC mains interfaces | Select when heatsink isolation is handled externally and cost reduction is prioritized |
| BTA06-800CWRG | 35 mA max IGT; same snubberless 3-quadrant operation but higher gate drive requirement | Suitable where gate driver has higher current capability and lower sensitivity is acceptable | Choose when system uses discrete transistor gate buffers and needs improved dV/dt immunity over standard types |
Compared with BTB06-800BWRG, BTA06-800BWRG provides integrated safety isolation; compared with BTA06-800CWRG, it reduces gate drive burden by 86%-critical for low-power MCU outputs.
Availability
BTA06-800BWRG is available at Aetrix Electronics and suitable for industrial motor control, resistive heating regulation, light dimming systems, and static relay replacement requiring stable component supply and long-term lifecycle assurance.
Supply support for BTA06-800BWRG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, power, MCU, and sensor solutions for industrial, automotive, and consumer markets.
The BTA/BTB06 series belongs to ST's high-reliability power switching portfolio, engineered specifically for robust AC load control in harsh electromagnetic environments with inductive or capacitive reactive loads.
FAQ
What is the maximum junction temperature for continuous operation?
The BTA06-800BWRG has a maximum operating junction temperature of +125°C. This limit applies under steady-state conditions with proper heatsinking; derating is required above Tc = 105°C per Figure 2 in the datasheet. Thermal design must ensure Rth(j–a) remains within safe limits when ambient exceeds 50°C.
Can this triac be used with 400 VAC three-phase line-to-line systems?
No-BTA06-800BWRG is rated for 800 V peak blocking (VDRM/VRRM), corresponding to ≤566 V RMS. In 400 VAC three-phase systems, line-to-line voltage peaks reach ~980 V, exceeding its rating. Use 1200 V triacs (e.g., BTA12-1200BWRG) for such applications.
Is a heat sink mandatory for 6 A RMS operation?
Yes-a heatsink is mandatory. At 6 A RMS, power dissipation exceeds 6 W (VTM × IT). With Rth(j–c) = 2.7 °C/W and max Tj = 125°C, even at Tc = 105°C, junction temperature rises ~16°C above case-requiring heatsink thermal resistance ≤ 10 °C/W to maintain safety margin under ambient conditions.
Does the insulated tab require electrical connection to circuit ground?
No-the insulated tab is electrically isolated (2500 VRMS) and may be mounted directly to a grounded heatsink without compromising safety or functionality. It serves only mechanical and thermal roles; no electrical connection is needed or recommended.
BTA06-800BWRG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- Snubberless™
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Triac Type:
- Alternistor - Snubberless
- Voltage - Off State:
- 800 V
- Current - On State (It (RMS)) (Max):
- 6 A
- Voltage - Gate Trigger (Vgt) (Max):
- 1.3 V
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 60A, 63A
- Current - Gate Trigger (Igt) (Max):
- 50 mA
- Current - Hold (Ih) (Max):
- 50 mA
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
BTA06-800BWRG FAQ
1.How can I place an order for BTA06-800BWRG through Aetrix?
Please submit a Request for Quotation (RFQ) for BTA06-800BWRG on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for BTA06-800BWRG reliable?
The price and inventory of BTA06-800BWRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTA06-800BWRG is usually 5 days.
3.What payment methods are accepted for BTA06-800BWRG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTA06-800BWRG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTA06-800BWRG?
BTA06-800BWRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTA06-800BWRG order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for BTA06-800BWRG?
For technical support, including BTA06-800BWRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTA06-800BWRG requirements.
6.How does Aetrix verify that BTA06-800BWRG is sourced from the original manufacturer or authorized distributors?
All BTA06-800BWRG products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BTA06-800BWRG meets industry standards.
7.What is the process for return or replacement of BTA06-800BWRG?
All BTA06-800BWRG units undergo pre-shipment inspection (PSI). If there is an issue with BTA06-800BWRG, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The BTA06-800BWRG part is unused and in its original packaging.
Return procedure for BTA06-800BWRG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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