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STMicroelectronics BTA06-400ARG
- Part No.:
- BTA06-400ARG
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-220-3
- Datasheet:
-
BTA06-400ARG.pdf
- Description:
- TRIAC SENS GATE 400V 6A TO220
- Quantity:
- Payment:
- Shipping:
Inventory:8,576
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Product details
Overview
BTA06-400ARG from STMicroelectronics is a 6A, 400V RMS snubberless triac in insulated TO-220AB package, rated for 2500VRMS voltage-isolated tab per UL E81734. It delivers 5mA logic-level gate trigger current (Q1), 1.55V max on-state voltage at 8.5A, and supports phase control in lighting dimmers and motor speed controllers.
For engineers reviewing the BTA06-400ARG datasheet, BTA06-400ARG pinout, BTA06-400ARG application, or BTA06-400ARG equivalent, key selection criteria include insulated tab compliance, 5mA gate sensitivity, 50A non-repetitive surge rating, dV/dt immunity up to 400V/µs (snubberless mode), and thermal resistance of 2.7°C/W (junction-to-case).
Technical Context
This triac operates in three quadrants (I, II, III) with logic-level gate drive capability, enabling direct interface with microcontrollers without external amplification. Its internal ceramic pad ensures galvanic isolation between MT2 and the heatsink-mounting tab.
The device achieves high commutation performance via optimized semiconductor structure, supporting reliable turn-off under inductive loads without external snubbers. Critical dI/dt rating of 50A/µs and dV/dt immunity of 400V/µs (at 125°C) are validated for snubberless operation in AC mains switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 6 A - Continuous AC load current handling capacity at Tc = 105°C |
| VDRM / VRRM | 400 V - Peak repetitive off-state voltage blocking capability |
| IGT (Q1) | 5 mA - Minimum gate trigger current in quadrant I, enabling direct MCU GPIO drive |
| dV/dt (min) | 400 V/µs - Minimum rate of voltage rise before unintended turn-on, verified at 125°C |
| Rth(j-c) | 2.7 °C/W - Thermal resistance from junction to case, defining heatsink sizing requirement |
| VTM | 1.55 V - Max on-state voltage drop at 8.5A, determining conduction loss and self-heating |
| ITSM (50 Hz) | 60 A - Non-repetitive surge current tolerance for 20 ms half-cycle, critical for motor start-up |
Pinout & Package
Package: TO-220AB Insulated - Features electrically isolated metal tab rated at 2500VRMS (UL E81734), enabling safe mounting to grounded heatsinks without insulating hardware.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main Terminal 1 | Reference terminal for gate triggering; connected to load return path in standard AC switch configuration |
| A2 (MT2) | Main Terminal 2 | High-side AC line connection; carries full load current and interfaces with isolated tab/heatsink |
| G | Gate | Control input accepting low-energy pulse (≥5mA) to initiate conduction in quadrants I, II, III |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless operation | Validated dV/dt immunity ≥400 V/µs eliminates need for RC snubber networks in inductive load switching |
| Logic-level gate drive | 5 mA IGT enables direct interface with 3.3V/5V microcontroller GPIO pins without buffer transistors |
| UL-certified insulated tab | 2500VRMS isolation (UL E81734) allows direct mounting to grounded heatsinks in safety-critical AC mains systems |
| Three-quadrant triggering | Operates reliably in quadrants I, II, and III only-suppresses false triggering in quadrant IV noise environments |
| ECOPACK® RoHS-compliant | Lead-free second-level interconnect compliant with JEDEC JESD97, marked on package and inner box label |
Applications
| Light Dimming Systems | Induction Motor Start Circuits |
|---|---|
|
Use Scenario: Phase-angle controlled AC power delivery to incandescent/halogen lamps in residential and commercial dimmers. IC Role / Device Role / Timing Role: Main AC switching element triggered by zero-crossing synchronized PWM gate pulses. Use Value: 5mA gate sensitivity enables direct drive from low-power MCU timers; 400V rating covers 230VAC + margin. |
Use Scenario: Momentary energization of motor windings during startup to overcome inertia in HVAC blowers and pump motors. IC Role / Device Role / Timing Role: High-current AC switch activated for <500ms to engage start winding or capacitor. Use Value: 60A non-repetitive surge rating handles locked-rotor current surges; snubberless design avoids component count increase. |
| Static Relay Modules | Heating Element Regulators |
|
Use Scenario: Solid-state replacement for electromechanical relays in PLC output modules and industrial control panels. IC Role / Device Role / Timing Role: Bidirectional AC switch providing galvanically isolated ON/OFF control of 230VAC loads. Use Value: 2500VRMS insulated tab meets reinforced insulation requirements for functional safety; TO-220AB footprint simplifies PCB layout. |
Use Scenario: Duty-cycle modulated power delivery to resistive heating elements in ovens, water heaters, and soldering stations. IC Role / Device Role / Timing Role: Zero-crossing switched AC power controller managing thermal ramp rates and steady-state temperature. Use Value: 6A RMS rating supports up to ~1.3kW at 230VAC; 1.55V VTM limits conduction losses below 10W at full load. |
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 |
|---|---|---|---|
| BTB06-400CW | Non-insulated TO-220AB package; 35mA IGT; same 400V/6A ratings | Requires insulating washer/mica pad when mounted to grounded heatsink; higher gate drive demand | Select when cost-sensitive and isolation can be implemented externally |
| BTA06-400SW | Same insulated TO-220AB package; 10mA IGT (vs. 5mA); identical voltage/current ratings | Slightly higher gate current requirement; otherwise functionally interchangeable in most logic-level designs | Choose if 5mA IGT margin is excessive and supply current budget allows 10mA |
Compared with BTB06-400CW and BTA06-400SW, the BTA06-400ARG offers the lowest gate drive burden (5mA) combined with factory-certified 2500VRMS tab isolation-reducing system-level safety validation effort and eliminating external isolation hardware.
Availability
BTA06-400ARG is available at Aetrix Electronics and suitable for static relay modules, heating regulation systems, light dimming circuits, and induction motor starting circuits requiring stable component supply across industrial OEM production cycles.
Supply support for BTA06-400ARG 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, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.
The BTA06-400ARG belongs to ST's high-reliability triac family engineered specifically for robust AC mains switching in safety-critical industrial controls, building automation, and appliance power stages.
FAQ
Is BTA06-400ARG compatible with 230VAC mains applications?
Yes. With 400V VDRM/VRRM rating and 6A RMS current capability, it supports 230VAC systems with 73% voltage margin above peak line voltage (325V). Its 60A non-repetitive surge rating accommodates inrush currents typical of lighting and motor loads.
What is the maximum allowable case temperature for continuous operation?
The datasheet specifies IT(RMS) = 6A at Tc = 105°C for the insulated TO-220AB package. Derating begins above this point; at 110°C case temperature, maximum RMS current drops to approximately 5.4A per Figure 2 in the official datasheet.
Does the insulated tab require additional thermal interface material?
Yes. Although electrically isolated, the ceramic pad has higher thermal resistance than bare copper. Use thermally conductive, electrically insulating paste or pad (e.g., silicone grease + mica) to maintain Rth(j-c) ≤ 2.7°C/W and prevent junction overheating.
Can BTA06-400ARG replace BTA06-400B in existing designs?
No. BTA06-400B is a standard (non-snubberless) 50mA IGT variant. The "RG" suffix denotes snubberless logic-level type with 5mA IGT. Substitution requires gate drive circuit review to ensure compatibility with lower trigger current and higher dV/dt immunity.
BTA06-400ARG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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):
- 10 mA
- Current - Hold (Ih) (Max):
- 25 mA
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
BTA06-400ARG FAQ
1.How can I place an order for BTA06-400ARG through Aetrix?
Please submit a Request for Quotation (RFQ) for BTA06-400ARG 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 BTA06-400ARG reliable?
The price and inventory of BTA06-400ARG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTA06-400ARG is usually 5 days.
3.What payment methods are accepted for BTA06-400ARG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTA06-400ARG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTA06-400ARG?
BTA06-400ARG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTA06-400ARG 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 BTA06-400ARG?
For technical support, including BTA06-400ARG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTA06-400ARG requirements.
6.How does Aetrix verify that BTA06-400ARG is sourced from the original manufacturer or authorized distributors?
All BTA06-400ARG 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 BTA06-400ARG meets industry standards.
7.What is the process for return or replacement of BTA06-400ARG?
All BTA06-400ARG units undergo pre-shipment inspection (PSI). If there is an issue with BTA06-400ARG, 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 BTA06-400ARG part is unused and in its original packaging.
Return procedure for BTA06-400ARG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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