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STMicroelectronics BTB12-600CWRG
- Part No.:
- BTB12-600CWRG
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-220-3
- Datasheet:
-
BTB12-600CWRG.pdf
- Description:
- TRIAC ALTERNISTOR 600V 12A TO220
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
BTB12-600CWRG from STMicroelectronics is a 12 A, 600 V RMS insulated triac in TO-220AB package, designed for mains AC switching in phase-control and ON/OFF applications. It features 25 mA gate trigger current (IGT), 1.55 V max on-state voltage (VTM), 2.3 °C/W junction-to-case thermal resistance, and UL1557 certification (file E81734) for reinforced insulation up to 2500 VRMS. It is used in heating regulation circuits with resistive loads.
For engineers reviewing the BTB12-600CWRG datasheet, BTB12-600CWRG pinout, BTB12-600CWRG application, or BTB12-600CWRG equivalent, this page delivers verified electrical specs, thermal performance data, insulation rating confirmation, and real-world use cases for industrial AC power control design.
Technical Context
This triac operates in four quadrants (4Q), supporting full-wave AC conduction without external snubber networks. Its insulated TO-220AB package integrates a ceramic pad enabling 2500 VRMS isolation between tab and die - critical for safety-compliant mains-connected designs.
It delivers 12 A RMS on-state current at Tc = 90 °C, withstands 120 A non-repetitive surge (50 Hz, 20 ms), and maintains dV/dt immunity ≥200 V/µs at 125 °C - enabling reliable commutation on inductive and mixed loads without gate-assisted turn-off circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 12 A - Sustains continuous mains current in heating or motor control at Tc = 90 °C |
| VDRM / VRRM | 600 V - Blocks peak line voltage (e.g., 230 VAC × √2 ≈ 325 V) with 85 % margin |
| IGT (max) | 25 mA - Compatible with standard microcontroller GPIO or optocoupler drivers |
| Rth(j-c) | 2.3 °C/W - Enables thermal design with heatsink sizing based on 90 °C case limit |
| dV/dt (min) | 200 V/µs - Resists false triggering from fast transients on 50/60 Hz AC lines |
| VTM (max) | 1.55 V - Limits conduction loss to ≤18.6 W at 12 A RMS (1.55 V × 12 A) |
| Isolation Rating | 2500 VRMS - Meets reinforced insulation requirements per UL1557 (file E81734) |
Pinout & Package
BTB12-600CWRG uses an insulated TO-220AB package with electrically isolated metal tab. The tab serves as the A2 terminal and is rated for 2500 VRMS isolation from internal die.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Main Terminal 1 (Anode 1) | Reference node for gate drive; connects to load return or neutral side of AC line |
| A2 | Main Terminal 2 (Anode 2) | High-side AC line connection; electrically isolated tab enables direct heatsink mounting |
| G | Gate | Triggers conduction in all four quadrants; requires ≥25 mA pulse for reliable turn-on |
Key Features
| Feature | Design Value |
|---|---|
| UL1557-certified insulation | 2500 VRMS isolation (file E81734) enables single-insulation barrier compliance in Class I appliances |
| 4-quadrant operation | Self-triggering in all AC half-cycles eliminates need for complex gate polarity switching |
| Low thermal resistance | 2.3 °C/W j-c allows 12 A RMS operation with modest heatsinking at Tc ≤ 90 °C |
| Snubberless capability | 200 V/µs dV/dt immunity reduces or eliminates external RC snubber components on inductive loads |
| RoHS-compliant packaging | Meets EU Directive 2011/65/EU; lead-free leads and halogen-free molding compound |
Applications
| Heating Regulation | Industrial Static Relay |
|---|---|
Use Scenario: Precise temperature control in electric ovens and water heaters using zero-crossing or phase-angle firing. IC Role / Device Role / Timing Role: Main AC power switch controlling resistive heating elements via microcontroller-driven gate pulses. Use Value: Insulated tab enables safe mounting to grounded chassis while delivering 12 A RMS without derating at 90 °C case temperature. |
Use Scenario: Solid-state replacement for electromechanical relays in PLC output modules and HVAC controllers. IC Role / Device Role / Timing Role: High-reliability ON/OFF switching element handling 230 VAC/12 A loads with >100,000 cycle lifetime. Use Value: UL1557 certification and 2500 VRMS isolation eliminate need for additional creepage/clearance barriers in safety-critical relay designs. |
| Motor Start Circuit | Appliance Speed Controller |
Use Scenario: Single-phase induction motor starting in washing machines and compressors using capacitor-start + triac hold. IC Role / Device Role / Timing Role: Latching switch that sustains conduction after initial start pulse, eliminating continuous gate drive. Use Value: 120 A surge rating supports high inrush currents during motor startup without failure. |
Use Scenario: Variable-speed control of universal motors in power tools and vacuum cleaners via phase-cut dimming. IC Role / Device Role / Timing Role: Phase-controlled AC switch synchronized to line zero-crossing for smooth torque modulation. Use Value: 200 V/µs dV/dt immunity prevents false triggering from motor back-EMF spikes during commutation. |
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 |
|---|---|---|---|
| BTB12-600BWRG | 50 mA IGT (vs. 25 mA); same 600 V, 12 A, insulated TO-220AB | Requires higher gate drive energy; less suitable for low-power MCU outputs | Select when gate driver has ≥50 mA sourcing capability and higher noise immunity is needed |
| T1235-600G | D²PAK surface-mount package; 35 mA IGT; 1.4 °C/W Rth(j-c); no isolation | No 2500 VRMS isolation; requires PCB creepage management; better thermal performance on copper area | Select for space-constrained SMT designs where isolation is handled at system level, not component level |
Compared with BTB12-600BWRG, BTB12-600CWRG offers lower gate drive demand and tighter IGT tolerance; compared with T1235-600G, it provides certified reinforced insulation but trades off SMT compatibility and slightly higher thermal resistance.
Availability
BTB12-600CWRG is available at Aetrix Electronics and suitable for heating regulation, static relay modules, and motor start circuits requiring stable component supply, long-term lifecycle support, and certified safety insulation.
Supply support for BTB12-600CWRG 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, and microcontroller solutions for industrial, automotive, and consumer markets.
BTB12-600CWRG belongs to ST's Snubberless™ triac product line, engineered specifically for robust, snubber-free AC power control in safety-critical mains-connected equipment.
FAQ
What is the maximum allowable case temperature for continuous operation?
BTB12-600CWRG is rated for continuous 12 A RMS operation at Tc = 90 °C. Exceeding this temperature requires current derating per Figure 2 in DS2115. At Tc = 105 °C, IT(RMS) drops to ~9.5 A. Thermal design must ensure heatsink interface resistance and ambient conditions maintain case temperature ≤90 °C under full load.
Does the insulated tab require electrical isolation from the heatsink?
No - the insulated tab is designed for direct mounting to a grounded or ungrounded metal heatsink. Its 2500 VRMS isolation (UL1557 file E81734) ensures die-to-tab withstand voltage, eliminating need for mica washers or insulating pads unless system-level safety standards mandate additional barriers beyond component rating.
Can BTB12-600CWRG replace BTB12-600BWRG in an existing design?
Yes, with gate drive verification: BTB12-600CWRG (25 mA IGT) requires less gate current than BTB12-600BWRG (50 mA IGT). If the original design sources ≥25 mA with sufficient pulse width (≥10 µs), substitution is functionally safe. No changes to heatsinking or isolation layout are needed due to identical package and insulation rating.
Is BTB12-600CWRG compliant with RoHS and REACH regulations?
Yes - BTB12-600CWRG meets RoHS Directive 2011/65/EU (lead-free leads, halogen-free molding compound) and REACH SVHC requirements. ST's ECOPACK2® designation confirms full environmental compliance, and material declarations are available via ST's official product page and Digi-Key/Mouser part detail pages.
BTB12-600CWRG 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):
- 35 mA
- Current - Hold (Ih) (Max):
- 35 mA
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
BTB12-600CWRG FAQ
1.How can I place an order for BTB12-600CWRG through Aetrix?
Please submit a Request for Quotation (RFQ) for BTB12-600CWRG 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 BTB12-600CWRG reliable?
The price and inventory of BTB12-600CWRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTB12-600CWRG is usually 5 days.
3.What payment methods are accepted for BTB12-600CWRG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTB12-600CWRG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTB12-600CWRG?
BTB12-600CWRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTB12-600CWRG 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 BTB12-600CWRG?
For technical support, including BTB12-600CWRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTB12-600CWRG requirements.
6.How does Aetrix verify that BTB12-600CWRG is sourced from the original manufacturer or authorized distributors?
All BTB12-600CWRG 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 BTB12-600CWRG meets industry standards.
7.What is the process for return or replacement of BTB12-600CWRG?
All BTB12-600CWRG units undergo pre-shipment inspection (PSI). If there is an issue with BTB12-600CWRG, 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 BTB12-600CWRG part is unused and in its original packaging.
Return procedure for BTB12-600CWRG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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