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STMicroelectronics BTB12-600TWRG
- Part No.:
- BTB12-600TWRG
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-220-3
- Datasheet:
-
BTB12-600TWRG.pdf
- Description:
- TRIAC SENS GATE 600V 12A TO220
- Quantity:
- Payment:
- Shipping:
Inventory:1,970
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Product details
Overview
BTB12-600TWRG from STMicroelectronics is a logic-level, snubberless triac in TO-220AB package rated for 12 A RMS on-state current and 600 V off-state voltage, with 5 mA maximum gate trigger current (IGT) and insulated tab (2500 VRMS). It operates across –40 °C to +125 °C junction temperature and delivers high commutation capability for inductive AC loads in lighting and motor control.
For engineers reviewing the BTB12-600TWRG datasheet, BTB12-600TWRG pinout, BTB12-600TWRG application, or BTB12-600TWRG equivalent, key selection criteria include low IGT for LED dimmer compatibility, 2500 VRMS isolation rating, Snubberless™ performance on inductive loads, and thermal resistance of 1.4 °C/W (junction-to-case).
Technical Context
This triac is a 3-quadrant, logic-level device optimized for phase-control switching in AC mains circuits without external snubbers. Its internal ceramic insulation enables reinforced isolation (2500 VRMS), and its 5 mA IGT allows direct drive from microcontrollers or optocouplers without gate amplification.
The device features a critical rate of rise of off-state voltage (dV/dt) ≥500 V/µs at 125 °C and minimum commutation current rate (dl/dt)c ≥6.5 A/ms under high dV/dt conditions - enabling robust turn-off in noisy inductive environments like fan speed controllers and heating elements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 12 A - supports continuous AC load switching up to 1.44 kW at 120 VAC or 2.88 kW at 240 VAC. |
| VDRM / VRRM | 600 V - withstands peak line voltages up to ∼848 V (120 VAC × √2) with safety margin for transients. |
| IGT (max) | 5 mA - enables direct interface with low-power logic outputs (e.g., MCU GPIO, zero-crossing optocouplers). |
| Rth(j–c) | 1.4 °C/W - allows 12 A operation with ≤17.5 °C temperature rise above heatsink at full load (Ptot ≈ 2.2 W). |
| dV/dt (min) | 500 V/µs - suppresses false triggering in high-noise inductive applications without snubber networks. |
| Isolation Voltage | 2500 VRMS - meets UL1557 (file E81734) for reinforced insulation in Class I appliances and industrial controls. |
| Package | TO-220AB - through-hole mounting with insulated tab for safe heatsinking on grounded metal chassis. |
Pinout & Package
TO-220AB package with insulated tab (A2 terminal electrically isolated from heatsink mount surface); tab serves as A2 (main terminal 2), lead 1 = A1 (main terminal 1), lead 2 = G (gate).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Main Terminal 1 | Reference anode for bidirectional conduction; connects to load return or neutral side in AC circuits. |
| A2 | Main Terminal 2 | High-side main terminal; tab is electrically isolated and rated 2500 VRMS - mounts directly to grounded heatsink. |
| G | Gate | Low-current trigger input; 5 mA max IGT enables direct MCU/optocoupler drive without buffer transistor. |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless™ operation | Eliminates need for RC snubber networks on inductive loads - reduces BOM count and PCB area in motor starters and solenoid drivers. |
| Logic-level gate sensitivity | 5 mA IGT allows direct interface with 3.3 V/5 V microcontrollers and zero-crossing optocouplers (e.g., MOC3021, IL420). |
| UL1557-certified insulation | 2500 VRMS reinforced isolation enables use in Class I household appliances without additional creepage/clearance barriers. |
| High commutation (3Q) | Guaranteed turn-off under high dV/dt (≥500 V/µs) and high dl/dt (≥6.5 A/ms) - essential for reliable dimming of LED/CFL lamps. |
| RoHS-compliant ECOPACK®2 | Lead-free terminations and halogen-free molding compound meet EU Directive 2011/65/EU and JEDEC J-STD-020 reflow profiles. |
Applications
| LED Dimmer Modules | Induction Motor Starters |
|---|---|
|
Use Scenario: Phase-angle dimming of mains-powered LED lamps using microcontroller-generated zero-crossing synchronized gate pulses. IC Role / Device Role / Timing Role: Bidirectional AC switch triggered at precise phase angle to regulate RMS power delivered to LED driver. Use Value: 5 mA IGT ensures compatibility with low-drive optocouplers; 500 V/µs dV/dt prevents false triggering during rapid voltage transitions. |
Use Scenario: Solid-state replacement for electromechanical contactors in single-phase induction motor start circuits (e.g., HVAC blowers, pump controls). IC Role / Device Role / Timing Role: ON/OFF switching of motor winding current during startup and run phases; handles inrush current up to 120 A surge. Use Value: Snubberless™ design eliminates snubber losses and component stress during inductive turn-off; 2500 VRMS isolation protects control circuitry. |
| Heating Element Controllers | Static Relays for Industrial PLC Outputs |
|
Use Scenario: Proportional time-based (burst-fire) control of resistive heating elements in ovens, soldering stations, and 3D printer beds. IC Role / Device Role / Timing Role: High-reliability AC switching element toggled at line frequency intervals to regulate average power. Use Value: 12 A RMS rating supports >2.8 kW loads at 240 VAC; TO-220AB insulated tab enables safe mounting on grounded metal enclosures. |
Use Scenario: Isolated output stage for programmable logic controller (PLC) digital outputs driving AC solenoids, valves, or indicator lamps. IC Role / Device Role / Timing Role: Reinforced-isolation solid-state relay replacing mechanical relays in DIN-rail mounted control panels. Use Value: UL1557 certification validates safety compliance; 1.4 °C/W Rth(j–c) enables stable operation under continuous 12 A load with standard heatsinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triac switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTA12-600TWRG | Insulated TO-220AB package (2500 VRMS), identical electrical specs | Required where reinforced isolation is mandated (e.g., medical-grade or double-insulated appliances) | Select when chassis grounding mandates galvanic isolation between load circuit and heatsink. |
| T1205-600G | D²PAK surface-mount package, same 5 mA IGT and 600 V rating, lower Rth(j–a) but no isolation | Suitable for space-constrained PCBs where isolation is handled externally or not required | Choose for automated SMT assembly and compact designs; verify external isolation if needed. |
Compared with BTB12-600TWRG, BTA12-600TWRG adds reinforced insulation but shares identical switching performance; T1205-600G offers SMT compatibility and better thermal dissipation in air, yet requires external isolation measures for safety-critical systems.
Availability
BTB12-600TWRG is available at Aetrix Electronics and suitable for LED dimmer modules, induction motor starters, heating element controllers, and static relays requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for BTB12-600TWRG 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.
BTB12-600TWRG belongs to ST's Snubberless™ Triac family, engineered specifically for reliable, snubber-free AC switching in cost-sensitive, high-volume mains-powered equipment such as home appliances and building automation systems.
FAQ
What is the maximum junction temperature and thermal resistance of BTB12-600TWRG?
The absolute maximum operating junction temperature is +125 °C. Its junction-to-case thermal resistance (Rth(j–c)) is 1.4 °C/W under AC conditions, measured with the insulated tab mounted to a heatsink at Tc = 90 °C. This value enables calculation of allowable power dissipation based on heatsink temperature and ambient conditions.
Does BTB12-600TWRG require a heatsink in all applications?
Yes - at full 12 A RMS load, power dissipation exceeds 2 W, necessitating a heatsink to maintain junction temperature below 125 °C. Derating curves in DS2115 show that above ~4 A RMS, case temperature must be actively managed; even at 6 A, a modest heatsink is recommended for continuous operation.
Can BTB12-600TWRG replace a standard 4-quadrant triac like BTB12-600B?
No - BTB12-600TWRG is a 3-quadrant device optimized for logic-level triggering and high commutation on inductive loads; it lacks quadrant IV triggering capability. Use only in circuits where gate drive is referenced to A1 and negative gate pulses are not required - e.g., microcontroller-driven phase control, not legacy analog trigger circuits.
Is the insulated tab rated for 2500 VRMS with respect to all other terminals?
Yes - the insulated tab (A2) is rated for 2500 VRMS isolation versus A1 and G terminals per UL1557 (file E81734). This applies to both AC and DC test conditions and is validated with the TO-220AB Insulated package variant; mounting hardware must not compromise the insulating pad or ceramic layer.
BTB12-600TWRG 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):
- 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
BTB12-600TWRG FAQ
1.How can I place an order for BTB12-600TWRG through Aetrix?
Please submit a Request for Quotation (RFQ) for BTB12-600TWRG 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 BTB12-600TWRG reliable?
The price and inventory of BTB12-600TWRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTB12-600TWRG is usually 5 days.
3.What payment methods are accepted for BTB12-600TWRG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTB12-600TWRG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTB12-600TWRG?
BTB12-600TWRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTB12-600TWRG 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 BTB12-600TWRG?
For technical support, including BTB12-600TWRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTB12-600TWRG requirements.
6.How does Aetrix verify that BTB12-600TWRG is sourced from the original manufacturer or authorized distributors?
All BTB12-600TWRG 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 BTB12-600TWRG meets industry standards.
7.What is the process for return or replacement of BTB12-600TWRG?
All BTB12-600TWRG units undergo pre-shipment inspection (PSI). If there is an issue with BTB12-600TWRG, 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 BTB12-600TWRG part is unused and in its original packaging.
Return procedure for BTB12-600TWRG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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