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STMicroelectronics BTA12-600SWRG
- Part No.:
- BTA12-600SWRG
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-220-3
- Datasheet:
-
BTA12-600SWRG.pdf
- Description:
- TRIAC SENS GATE 600V 12A TO220
- Quantity:
- Payment:
- Shipping:
Inventory:1,584
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Product details
Overview
BTA12-600SWRG from STMicroelectronics is a logic-level, insulated Snubberless™ triac rated for 12 A RMS on-state current and 600 V repetitive peak off-state voltage, with 10 mA maximum gate trigger current (IGT) and 2500 VRMS isolated tab. It operates in three quadrants, supports inductive load switching without external snubbers, and is UL1557 certified (E81734) for use in LED dimmers and appliance motor speed controllers.
For engineers reviewing the BTA12-600SWRG datasheet, BTA12-600SWRG pinout, BTA12-600SWRG application, or BTA12-600SWRG equivalent, key selection criteria include insulated TO-220AB package, low IGT for microcontroller-compatible triggering, high dV/dt immunity (500 V/µs), and validated commutation performance on inductive loads without snubbers.
Technical Context
This triac uses a three-quadrant (3Q) triggering architecture optimized for logic-level gate drive, enabling direct interface with 3.3 V/5 V MCUs without buffer stages. Its internal ceramic insulation provides 2500 VRMS isolation between the MT1/MT2 terminals and the metal tab, meeting UL1557 requirements.
The device achieves high commutation robustness via enhanced gate structure and optimized silicon design: it sustains 500 V/µs critical rate of rise of off-state voltage (dV/dt) at Tj = 125 °C and delivers minimum (dl/dt)c of 6.5 A/ms at (dV/dt)c = 0.1 V/µs - enabling reliable turn-off under reactive load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 12 A - Sustains continuous AC mains current up to 12 A at Tc = 90 °C in insulated TO-220AB package. |
| VDRM / VRRM | 600 V - Blocks 600 V peak AC line voltage with margin for transients in 230 VAC systems. |
| IGT (max) | 10 mA - Compatible with low-power MCU GPIOs; enables direct drive without gate driver ICs. |
| dV/dt (min) | 500 V/µs - Resists false triggering from fast-rising noise on AC lines, eliminating need for snubber networks. |
| Rth(j-c) | 2.3 °C/W - Enables efficient heat transfer to heatsink; allows 12 A operation with modest thermal management. |
| VTM (max) | 1.55 V - Low conduction loss at 17 A pulse; reduces power dissipation and thermal stress during switching. |
| Isolation Voltage | 2500 VRMS - Certified reinforced insulation between tab and main terminals per UL1557 (file E81734). |
Pinout & Package
Package: TO-220AB Insulated - epoxy-molded case with internal ceramic pad isolating the metal tab (A2) from MT2 terminal; UL94 V0 rated, torque spec 0.55 N·m (max 0.70 N·m).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main Terminal 1 | Reference terminal for gate trigger; connected to neutral or low-side AC path in phase-control circuits. |
| A2 (MT2) | Main Terminal 2 | High-current AC output path; electrically isolated from tab but thermally coupled via ceramic pad. |
| G | Gate | Logic-level control input; triggers conduction when ≥10 mA pulse applied with proper polarity relative to A1. |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless™ Operation | Validated 500 V/µs dV/dt immunity eliminates external RC snubber components in inductive load applications. |
| Logic-Level Gate Drive | 10 mA max IGT enables direct interfacing with 3.3 V/5 V microcontrollers and digital isolators. |
| UL1557 Reinforced Insulation | 2500 VRMS isolation rating certified per file E81734 - meets safety requirements for Class I appliances. |
| High Commutation Robustness | 6.5 A/ms (dl/dt)c at low (dV/dt)c ensures reliable turn-off under worst-case inductive load recovery. |
| RoHS & ECOPACK2® Compliant | Lead-free terminations and halogen-free molding compound meet EU 2011/65/EU and environmental standards. |
Applications
| LED Dimmer Modules | Induction Motor Starters |
|---|---|
|
Use Scenario: Phase-angle dimming of mains-powered LED lamps using microcontroller-based zero-crossing detection and PWM timing. IC Role / Device Role / Timing Role: Main AC switching element triggered synchronously with AC zero-crossing; handles full 230 VAC load current. Use Value: Low 10 mA IGT enables direct MCU drive; Snubberless™ operation avoids snubber losses and PCB space in compact lamp drivers. |
Use Scenario: Solid-state replacement for electromechanical contactors in HVAC blower motors and washing machine drum drives. IC Role / Device Role / Timing Role: ON/OFF switching of inductive motor windings during start-up and run phases; withstands back-EMF during turn-off. Use Value: 500 V/µs dV/dt and 6.5 A/ms (dl/dt)c prevent commutation failure on highly inductive loads without snubbers. |
| Heating Element Regulators | Static Relays for Industrial PLCs |
|
Use Scenario: Proportional time-based control of resistive heating elements in ovens, water heaters, and 3D printer beds. IC Role / Device Role / Timing Role: High-reliability AC power switch modulating energy delivery via burst-fire or phase-control schemes. Use Value: 12 A RMS rating and 2.3 °C/W Rth(j-c) support sustained thermal cycling; UL-certified isolation ensures system safety compliance. |
Use Scenario: Output stage of programmable logic controller (PLC) modules driving 24–240 VAC solenoids, valves, and indicator lamps. IC Role / Device Role / Timing Role: Isolated, solid-state replacement for mechanical relay outputs; provides silent, bounce-free switching with long lifetime. Use Value: 2500 VRMS reinforced insulation eliminates need for additional creepage/clearance barriers in compact DIN-rail modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triac switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTA12-600TW | 5 mA max IGT vs. 10 mA; otherwise identical voltage/current/isolation specs. | Better suited for ultra-low-power gate drive (e.g., battery-powered controllers); slightly higher cost. | Select when MCU GPIO drive capability is limited to <5 mA or when lowest possible trigger energy is required. |
| T1210-600G | D²PAK surface-mount package; same 12 A/600 V/10 mA specs; no tab isolation (non-insulated). | Requires PCB-level isolation design; unsuitable where chassis-grounded heatsink is used. | Select for automated SMT assembly where board space is constrained and thermal coupling to copper pour suffices. |
Compared with BTA12-600TW, this part trades minimal gate drive reduction for broader compatibility with standard 10 mA MCU outputs; versus T1210-600G, it provides certified isolation essential for safety-critical mains-connected equipment.
Availability
BTA12-600SWRG is available at Aetrix Electronics and suitable for LED dimmer modules, induction motor starters, heating element regulators, and static relays requiring stable component supply across industrial and consumer production programs.
Supply support for BTA12-600SWRG 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, mixed-signal, power, and microcontroller solutions for industrial, automotive, and consumer markets.
The BTA series belongs to ST's high-reliability power discrete portfolio, engineered specifically for robust AC mains switching in safety-critical, thermally demanding, and space-constrained applications.
FAQ
What is the maximum junction temperature for continuous operation?
The BTA12-600SWRG has an operating junction temperature range of –40 °C to +125 °C. Continuous operation at 12 A RMS requires maintaining case temperature ≤90 °C, achievable with a heatsink providing ≤2.3 °C/W thermal resistance from junction to case.
Does this triac require a heatsink in all applications?
Yes - due to its 12 A RMS rating and 1.55 V on-state voltage drop, thermal management is mandatory. At full load, power dissipation exceeds 15 W; the insulated TO-220AB package demands a properly mounted heatsink with thermal interface material to maintain Tc ≤90 °C.
Can BTA12-600SWRG replace a standard 4-quadrant triac in existing designs?
No - it is a 3-quadrant device. Gate triggering only occurs in quadrants I, II, and III. It cannot be triggered in quadrant IV, so legacy 4Q designs relying on full-quadrant sensitivity must verify gate drive polarity and waveform compatibility before substitution.
Is the insulated tab rated for functional or safety isolation?
The 2500 VRMS isolation is certified as reinforced safety insulation per UL1557 (file E81734), not just functional isolation. It permits direct mounting to grounded metal chassis without additional insulation barriers, satisfying basic insulation requirements in Class I appliances.
BTA12-600SWRG 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:
- 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):
- 10 mA
- Current - Hold (Ih) (Max):
- 15 mA
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
BTA12-600SWRG FAQ
1.How can I place an order for BTA12-600SWRG through Aetrix?
Please submit a Request for Quotation (RFQ) for BTA12-600SWRG 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 BTA12-600SWRG reliable?
The price and inventory of BTA12-600SWRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTA12-600SWRG is usually 5 days.
3.What payment methods are accepted for BTA12-600SWRG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTA12-600SWRG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTA12-600SWRG?
BTA12-600SWRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTA12-600SWRG 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 BTA12-600SWRG?
For technical support, including BTA12-600SWRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTA12-600SWRG requirements.
6.How does Aetrix verify that BTA12-600SWRG is sourced from the original manufacturer or authorized distributors?
All BTA12-600SWRG 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 BTA12-600SWRG meets industry standards.
7.What is the process for return or replacement of BTA12-600SWRG?
All BTA12-600SWRG units undergo pre-shipment inspection (PSI). If there is an issue with BTA12-600SWRG, 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 BTA12-600SWRG part is unused and in its original packaging.
Return procedure for BTA12-600SWRG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BTA12-600SWRG Tags
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