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STMicroelectronics BTA06-400TRG
- Part No.:
- BTA06-400TRG
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-220-3
- Datasheet:
-
BTA06-400TRG.pdf
- Description:
- TRIAC SENS GATE 400V 6A TO220
- Quantity:
- Payment:
- Shipping:
Inventory:2,159
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Product details
Overview
BTA06-400TRG from STMicroelectronics is a 6A, 400V RMS snubberless triac in insulated TO-220AB package, designed for AC phase control and ON/OFF switching in inductive loads. It features 5 mA logic-level gate trigger current (IGT), 2500 VRMS voltage-isolated tab per UL E81734, and 50 A non-repetitive surge rating - enabling use in motor speed controllers and heating regulation circuits.
For engineers reviewing the BTA06-400TRG datasheet, BTA06-400TRG pinout, BTA06-400TRG application, or BTA06-400TRG equivalent, key selection criteria include gate sensitivity (5 mA IGT), commutation robustness (dV/dt ≥ 1000 V/µs), insulated package compliance, and snubberless operation on inductive loads without external RC networks.
Technical Context
The BTA06-400TRG is a three-quadrant logic-level triac optimized for reliable triggering with low gate drive (5 mA max IGT) and high noise immunity. Its internal ceramic pad ensures 2500 VRMS isolation between MT2 and heatsink, meeting UL safety requirements for mains-connected equipment.
It operates without snubbers under inductive load conditions due to enhanced commutation performance: dV/dt rating of 1000 V/µs at 125°C and critical rate of decrease of main current (dI/dt)c ≥ 5.3 A/ms at (dV/dt)c = 10 V/µs - enabling direct interface with microcontroller GPIOs in compact AC control designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 6 A - supports continuous AC load current up to 6A at Tc = 105°C in insulated TO-220AB package |
| VDRM / VRRM | 400 V - peak repetitive off-state voltage rating; suitable for 230VAC mains with safety margin |
| IGT (Q1) | 5 mA max - logic-level gate trigger current enables direct drive from 3.3V/5V MCU outputs |
| dV/dt (min) | 1000 V/µs - high commutation immunity allows snubberless operation with inductive loads |
| Rth(j-c) | 2.7 °C/W - thermal resistance from junction to case; defines heatsink sizing for 6A RMS conduction |
| ITSM (50 Hz) | 60 A - non-repetitive surge rating for motor startup or transient overload handling |
| VTM (ITM = 8.5 A) | 1.55 V max - low on-state voltage drop reduces conduction losses and heatsink requirements |
Pinout & Package
Package: TO-220AB insulated (voltage-isolated tab), UL-certified (File E81734), ECOPACK® lead-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main Terminal 1 | Reference terminal for gate trigger; connected to load return or neutral side in AC circuits |
| A2 (MT2) | Main Terminal 2 | High-side AC line connection; electrically isolated from heatsink via ceramic pad |
| G | Gate | Low-current control input; triggers conduction when ≥5 mA pulse applied between G and A1 |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless operation | Eliminates need for external RC snubber network on inductive loads, reducing BOM count and PCB area |
| Logic-level gate sensitivity | 5 mA max IGT enables direct interfacing with standard microcontroller GPIOs without buffer stages |
| UL-rated insulated tab | 2500 VRMS isolation between A2 and heatsink satisfies reinforced insulation requirements for Class I appliances |
| Three-quadrant triggering | Operates in quadrants I, II, and III only - improves noise immunity and eliminates false triggering from negative gate transients |
Applications
| Motor Speed Control | Heating Regulation |
|---|---|
Use Scenario: Variable-speed control of universal or single-phase induction motors in power tools and fans. IC Role / Device Role / Timing Role: AC phase-angle controller modulating RMS voltage delivered to motor windings. Use Value: Enables precise speed adjustment with minimal external components due to snubberless design and logic-level gate drive. | Use Scenario: Temperature-stabilized resistive heating in ovens, coffee makers, and industrial process heaters. IC Role / Device Role / Timing Role: Zero-crossing or phase-control switch regulating average power to heating element. Use Value: High dV/dt immunity prevents false turn-on during zero-crossing transitions, improving thermal stability. |
| Static Relay Replacement | Light Dimming |
Use Scenario: Solid-state replacement for electromechanical relays in HVAC controls and PLC output modules. IC Role / Device Role / Timing Role: Bidirectional AC switch providing galvanically isolated load control without contact wear. Use Value: Insulated TO-220AB package allows direct mounting to grounded metal chassis while maintaining safety isolation. | Use Scenario: Leading-edge dimming of incandescent and halogen lamps in residential and commercial lighting. IC Role / Device Role / Timing Role: Phase-controlled AC switch adjusting conduction angle per half-cycle to vary light intensity. Use Value: Low IGT (5 mA) and fast dV/dt response ensure consistent dimming performance across wide input voltage ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triac-based AC switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTB06-400TW | Non-insulated TO-220AB package; no voltage isolation between A2 and heatsink | Requires insulated mounting hardware for safety-critical mains-connected designs | Select when cost-sensitive and isolation can be achieved mechanically or via PCB layout |
| Z0106MN | 6A/400V triac with 10 mA IGT; standard 4-quadrant operation; TO-92 package | Limited to low-power loads (<1A) due to thermal constraints; not snubberless | Use only for signal-level AC switching where gate drive margin and isolation are non-critical |
Compared with BTB06-400TW and Z0106MN, the BTA06-400TRG uniquely combines UL-certified insulation, snubberless inductive load capability, and 5 mA logic-level gate drive - making it optimal for compact, safety-compliant, microcontroller-driven AC control systems.
Availability
BTA06-400TRG is available at Aetrix Electronics and suitable for motor speed controllers, heating regulation systems, static relay replacements, and light dimmers requiring stable component supply and long-term industrial availability.
Supply support for BTA06-400TRG 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, specializing in power management, analog, MCU, and automotive ICs.
The BTA/BTB06 series belongs to ST's high-reliability AC power switching portfolio, engineered specifically for robust, snubberless control of inductive and resistive AC loads in industrial and appliance applications.
FAQ
Is BTA06-400TRG compatible with 3.3V microcontrollers?
Yes. With a maximum gate trigger current (IGT) of 5 mA and gate trigger voltage (VGT) ≤1.3 V, the BTA06-400TRG can be directly driven by 3.3V GPIOs using a series resistor (e.g., 330 Ω) to limit gate current within specification. No level-shifting or buffer stage is required.
Does BTA06-400TRG require a heatsink?
Yes - for continuous RMS currents above ~2 A at ambient temperatures >40°C. Its Rth(j-c) of 2.7 °C/W and 6 A IT(RMS) rating demand thermal management: a minimum 15 cm² aluminum heatsink is recommended for 6 A operation at Tc ≤105°C per datasheet derating curves.
What does "snubberless" mean for this triac?
"Snubberless" indicates the device meets stringent commutation specifications (dV/dt ≥1000 V/µs and (dI/dt)c ≥5.3 A/ms) that prevent unintended turn-on during voltage transients across inductive loads - eliminating the need for external RC snubber networks typically used with standard triacs.
Can BTA06-400TRG replace a BTA06-600B in a 230VAC circuit?
No - the "400" in BTA06-400TRG denotes 400 V VDRM/VRRM, while BTA06-600B is rated for 600 V. In 230VAC applications with typical 1.5× surge margins (≈325 V peak), the 400 V rating provides adequate margin, but 600 V offers higher safety headroom for harsh line conditions or legacy designs.
BTA06-400TRG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Triac Type:
- Logic - Sensitive Gate
- Voltage - Off State:
- 400 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):
- 5 mA
- Current - Hold (Ih) (Max):
- 10 mA
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
BTA06-400TRG FAQ
1.How can I place an order for BTA06-400TRG through Aetrix?
Please submit a Request for Quotation (RFQ) for BTA06-400TRG 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 BTA06-400TRG reliable?
The price and inventory of BTA06-400TRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTA06-400TRG is usually 5 days.
3.What payment methods are accepted for BTA06-400TRG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTA06-400TRG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTA06-400TRG?
BTA06-400TRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTA06-400TRG 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 BTA06-400TRG?
For technical support, including BTA06-400TRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTA06-400TRG requirements.
6.How does Aetrix verify that BTA06-400TRG is sourced from the original manufacturer or authorized distributors?
All BTA06-400TRG 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 BTA06-400TRG meets industry standards.
7.What is the process for return or replacement of BTA06-400TRG?
All BTA06-400TRG units undergo pre-shipment inspection (PSI). If there is an issue with BTA06-400TRG, 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 BTA06-400TRG part is unused and in its original packaging.
Return procedure for BTA06-400TRG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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