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STMicroelectronics BTA12-600BWRG
- Part No.:
- BTA12-600BWRG
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-220-3
- Datasheet:
-
BTA12-600BWRG.pdf
- Description:
- TRIAC ALTERNISTOR 600V 12A TO220
- Quantity:
- Payment:
- Shipping:
Inventory:1,528
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Product details
Overview
BTA12-600BWRG from STMicroelectronics is a 12 A, 600 V insulated Snubberless™ triac in TO-220AB Ins. package, designed for AC mains switching in inductive load applications. It delivers 50 mA gate trigger current (IGT), 2500 VRMS isolated tab rating per UL1557 (E81734), and supports high commutation performance in 3-quadrant operation. Used in static relays, motor speed controllers, and lighting dimmers with LED compatibility.
For engineers reviewing the BTA12-600BWRG datasheet, BTA12-600BWRG pinout, BTA12-600BWRG application, or BTA12-600BWRG equivalent, this page provides verified thermal resistance (Rth(j-c) = 2.3 °C/W), dV/dt immunity (1000 V/µs), critical commutation current (dl/dt)c ≥ 12 A/ms, and insulation compliance - all essential for reliable phase-control design on inductive loads.
Technical Context
This triac operates in 3-quadrant mode with Snubberless™ architecture, enabling robust turn-off under high dV/dt stress without external snubbers. Its internal ceramic isolation pad ensures 2500 VRMS reinforced insulation between tab and die, meeting UL1557 requirements.
Designed for mains-frequency AC control, it features low holding current (IH ≤ 50 mA), high surge capability (ITSM = 120 A at 50 Hz), and thermal stability up to Tj = 125 °C. Gate sensitivity is optimized for standard triggering circuits with IGT = 50 mA max at 12 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 12 A RMS on-state current - supports continuous 1.5 kW resistive or 1.2 kW inductive load at 120 VAC with proper heatsinking. |
| VDRM / VRRM | 600 V peak off-state voltage - withstands 2× nominal 240 VAC mains peaks with safety margin. |
| IGT (max) | 50 mA gate trigger current - compatible with standard microcontroller GPIO or optocoupler drivers without amplification. |
| dV/dt (min) | 1000 V/µs - eliminates need for snubber networks in motor and transformer-driven loads. |
| (dl/dt)c | ≥12 A/ms at 10 V/µs - ensures reliable commutation during zero-crossing interruption of inductive currents. |
| Rth(j-c) | 2.3 °C/W junction-to-case - enables thermal design with compact heatsinks for industrial enclosure space constraints. |
| Isolation Rating | 2500 VRMS reinforced insulation - satisfies safety requirements for Class I appliances and industrial controls. |
Pinout & Package
Package: TO-220AB Insulated (UL1557 certified, epoxy housing with internal ceramic isolation pad). Tab is electrically isolated and rated 2500 VRMS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main Terminal 1 | Reference terminal for gate triggering; connects to load return or neutral side in AC line-switching configurations. |
| A2 (MT2) | Main Terminal 2 | High-side AC line connection; carries full load current and defines polarity reference for quadrants I/II/III. |
| G | Gate | Control input requiring ≥50 mA pulse (12 V, RL = 30 Ω); triggers conduction only when voltage across A2–A1 exceeds threshold and polarity matches quadrant. |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless™ 3Q operation | Enables direct drive of inductive loads (e.g., fans, solenoids) without RC snubber components - reduces BOM count and PCB area. |
| UL1557-certified insulation | 2500 VRMS isolation between tab and die - eliminates need for additional creepage/clearance barriers in safety-critical designs. |
| Low Rth(j-c) = 2.3 °C/W | Permits 12 A RMS operation with <50 °C temperature rise using minimal heatsink surface (e.g., 25 cm² aluminum). |
| High dV/dt immunity (1000 V/µs) | Prevents false triggering from line transients or switching noise in shared power rails - improves system reliability. |
| RoHS-compliant ECOPACK®2 | Lead-free terminations and halogen-free molding compound - meets EU Directive 2011/65/EU without derating or process changes. |
Applications
| Industrial Motor Control | LED-Compatible Light Dimming |
|---|---|
|
Use Scenario: Speed regulation of single-phase induction motors in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: AC line-commutated phase-angle controller switching at 50/60 Hz zero-crossing points. Use Value: High (dl/dt)c ≥ 12 A/ms ensures clean turn-off despite back-EMF, eliminating audible coil whine and contact arcing. |
Use Scenario: Leading-edge dimming of mains-powered LED drivers with TRIAC-compatible input stages. IC Role / Device Role / Timing Role: Main AC switch in trailing-edge or hybrid dimmer circuits with low IH (≤50 mA) enabling stable hold-on at low LED current. Use Value: Logic-level-compatible IGT (50 mA) allows direct drive from MCU pins or low-power optocouplers - no gate driver IC needed. |
| Static Power Relays | Heating Element Regulation |
|
Use Scenario: Solid-state replacement for electromechanical relays in PLC output modules and building automation panels. IC Role / Device Role / Timing Role: Bidirectional AC switch activated by isolated digital signal; handles repetitive ON/OFF cycling without contact wear. Use Value: 120 A non-repetitive surge rating (ITSM) absorbs inrush from cold tungsten filaments or transformer primaries - extends service life. |
Use Scenario: Proportional control of resistive heating elements in commercial ovens and water heaters. IC Role / Device Role / Timing Role: Phase-controlled power delivery modulated via microcontroller PWM timing to gate driver circuitry. Use Value: Low on-state voltage (VTM ≤ 1.55 V) minimizes conduction loss (≤1.9 W at 12 A), reducing heatsink size and energy waste. |
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 |
|---|---|---|---|
| BTA12-600BW | No "R" suffix → tube packaging only; identical electrical specs and TO-220AB Ins. package. | Same functional use; differs only in packaging format (no tape/reel option). | Select BTA12-600BW if tube delivery suffices and reel logistics are unnecessary. |
| T1250-600G | D²PAK surface-mount package; same 12 A/600 V rating, 50 mA IGT, but Rth(j-c) = 1.4 °C/W and no isolation. | Requires PCB-level isolation design; better for high-density SMT layouts but not drop-in for insulated through-hole slots. | Choose T1250-600G only when board space is constrained and external isolation is implemented. |
Compared with BTA12-600BWRG, BTA12-600BW offers identical performance in tube packaging, while T1250-600G trades isolation and through-hole mounting for superior thermal resistance and SMT compatibility - selection hinges on safety certification needs and assembly method.
Availability
BTA12-600BWRG is available at Aetrix Electronics and suitable for industrial motor control, LED dimming systems, static relay modules, and heating regulation requiring stable component supply across production lifecycles.
Supply support for BTA12-600BWRG 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, and discrete devices for industrial, automotive, and consumer markets.
The BTA series belongs to ST's high-reliability AC power switching product line, engineered specifically for robust, snubber-free operation in mains-connected inductive and resistive load control applications.
FAQ
What is the maximum junction temperature for continuous operation?
The BTA12-600BWRG has an operating junction temperature range of –40 °C to +125 °C. Continuous operation at Tj = 125 °C requires thermal design ensuring case temperature does not exceed 90 °C, per absolute maximum ratings in Table 1. Derating applies above that point.
Does the insulated tab require mechanical grounding?
No - the insulated tab is electrically isolated at 2500 VRMS and must not be grounded unless required by system safety architecture. It may serve as a heatsink attachment point without creating a conductive path to the die; thermal interface material must maintain isolation integrity.
Can BTA12-600BWRG replace a standard 4-quadrant triac in existing designs?
Yes, but only in 3-quadrant applications where gate triggering occurs in quadrants I, II, or III. It is not rated for quadrant IV triggering. Verify control circuit polarity and ensure gate drive aligns with its 3Q specification to avoid unreliable turn-on.
What is the minimum gate pulse width required for reliable triggering?
A minimum gate pulse width of 10 µs is recommended for reliable turn-on at room temperature. At elevated junction temperatures (>100 °C), pulse width should be increased to ≥20 µs to compensate for reduced gate sensitivity, as shown in Figure 8 of DS2115.
BTA12-600BWRG 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:
- 600 V
- Current - On State (It (RMS)) (Max):
- 12 A
- Voltage - Gate Trigger (Vgt) (Max):
- 1.3 V
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 120A, 126A
- 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
BTA12-600BWRG FAQ
1.How can I place an order for BTA12-600BWRG through Aetrix?
Please submit a Request for Quotation (RFQ) for BTA12-600BWRG 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 BTA12-600BWRG reliable?
The price and inventory of BTA12-600BWRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTA12-600BWRG is usually 5 days.
3.What payment methods are accepted for BTA12-600BWRG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTA12-600BWRG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTA12-600BWRG?
BTA12-600BWRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTA12-600BWRG 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 BTA12-600BWRG?
For technical support, including BTA12-600BWRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTA12-600BWRG requirements.
6.How does Aetrix verify that BTA12-600BWRG is sourced from the original manufacturer or authorized distributors?
All BTA12-600BWRG 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 BTA12-600BWRG meets industry standards.
7.What is the process for return or replacement of BTA12-600BWRG?
All BTA12-600BWRG units undergo pre-shipment inspection (PSI). If there is an issue with BTA12-600BWRG, 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 BTA12-600BWRG part is unused and in its original packaging.
Return procedure for BTA12-600BWRG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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