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Home > Products > Discrete Semiconductor Products > Thyristors > TRIACs

STMicroelectronics BTA12-600BRG

Name: BTA12-600BRG
Brand: STMicroelectronics
SKU: BTA12-600BRG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BTA12-600BRG

Manufacturer:: STMicroelectronics

Category:: TRIACs

Package:: TO-220-3

Datasheet:: BTA12-600BRG.pdf

Description:: TRIAC 600V 12A TO220

Quantity:: RFQ Add To RFQ list

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Inventory:20,011

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Product details

Overview

BTA12-600BRG from STMicroelectronics is a 12 A, 600 V insulated TRIAC in TO-220AB package, designed for mains AC switching in phase-control and ON/OFF applications. It features Snubberless™ operation (50 mA gate trigger current), 2500 VRMS insulated tab per UL 1557, and high commutation capability for inductive loads such as motor starters and heating regulators.

For engineers reviewing the BTA12-600BRG datasheet, BTA12-600BRG pinout, BTA12-600BRG application, or BTA12-600BRG equivalent, key selection criteria include insulated thermal performance (R_th(j-c) = 2.3 °C/W), dV/dt immunity (400 V/µs), and logic-level compatibility with microcontroller-driven zero-crossing circuits in smart appliance control.

Technical Context

This device operates as a 3-quadrant, Snubberless™ TRIAC optimized for inductive load commutation without external snubbers. Its internal ceramic insulation enables safe mounting on heatsinks without isolation hardware, while its 50 mA I_GT and 400 V/µs dV/dt rating support robust triggering in noisy 50/60 Hz AC environments.

The BTA12-600BRG uses a standard 3-terminal TRIAC topology (A1, A2, G) with symmetrical bidirectional conduction. Its junction-to-case thermal resistance of 2.3 °C/W allows 12 A RMS current handling at T_c = 90 °C, and its 126 A non-repetitive surge rating supports motor startup transients.

Key Specifications

Parameter	Value and Actual Design Meaning
IT(RMS)	12 A - Sustained AC load current capacity at Tc = 90 °C
VDRM / VRRM	600 V - Peak off-state blocking voltage for 230 VAC mains with safety margin
IGT (Snubberless)	50 mA - Gate trigger current enabling direct drive from MCU GPIO or optocoupler outputs
dV/dt (min)	400 V/µs - Immunity to false turn-on during voltage transients on inductive loads
Rth(j-c)	2.3 °C/W - Thermal resistance enabling efficient heatsink coupling for industrial ambient conditions
Insulation Rating	2500 VRMS - UL-certified isolation between tab and terminals for Class I safety compliance
ITSM (60 Hz)	126 A - Surge current handling for 16.7 ms, sufficient for induction motor inrush

Pinout & Package

Package: TO-220AB Insulated - epoxy-molded case with internal ceramic pad isolating the metal tab from semiconductor die; UL 94 V0 rated, torque limit 0.55 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 designs
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 to initiate conduction; referenced to A1, not ground

Key Features

Feature	Design Value
Snubberless™ Operation	Enables elimination of external RC snubber networks in motor and transformer loads, reducing BOM count and PCB area
UL 1557 Certification	Validated 2500 VRMS isolation ensures compliance with IEC 60335-1 for household appliances
Low Thermal Resistance	2.3 °C/W junction-to-case enables 12 A operation with modest heatsinking in enclosed industrial enclosures
High Commutation (3Q)	Guaranteed turn-off under inductive load conditions without external forced commutation circuitry
RoHS Compliant	Lead-free terminations and halogen-free molding compound meet EU Directive 2011/65/EU requirements

Applications

Induction Motor Starter

Smart Appliance Heating Control

Use Scenario: Starting single-phase induction motors in washing machines and HVAC blowers using phase-angle control.

IC Role / Device Role / Timing Role: Main power switch controlling AC voltage applied to motor windings during startup and speed regulation.

Use Value: High dV/dt immunity prevents false triggering during back-EMF spikes; insulated tab simplifies mechanical integration with grounded chassis.

Use Scenario: Regulating resistive heating elements in ovens, coffee makers, and water heaters via burst-fire or phase-control.

IC Role / Device Role / Timing Role: Bidirectional AC switch executing precise power delivery based on temperature feedback loop timing.

Use Value: 12 A RMS rating supports up to 2.7 kW at 230 VAC; UL-certified isolation meets safety standards for Class I appliances.

Industrial Static Relay

LED-Compatible Light Dimmer

Use Scenario: Replacing electromechanical relays in PLC output modules for AC load switching in factory automation.

IC Role / Device Role / Timing Role: Solid-state replacement for contactor-based switching, triggered by isolated digital signals.

Use Value: 126 A surge rating handles inductive coil de-energization spikes; TO-220AB insulated package avoids need for additional isolation barriers.

Use Scenario: Phase-cut dimming of LED lamps with trailing-edge compatibility in retrofit wall dimmers.

IC Role / Device Role / Timing Role: Main switching element synchronized to zero-crossing detection for EMI reduction.

Use Value: 50 mA I_GT allows direct drive from triac driver ICs like MOC3021; Snubberless™ behavior prevents flicker on low-wattage LED loads.

Equivalent & Alternatives

The following parts are listed as comparable options for similar TRIAC switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BTA12-600BW	Same 12 A/600 V rating and insulated TO-220AB package, but 50 mA Snubberless™ gate sensitivity (identical)	No functional difference; RG vs. no suffix denotes tube packaging only	Select BTA12-600BW if bulk tube delivery is preferred over RG-marked tubes
T1250-600G	D²PAK surface-mount package, same 12 A/600 V/50 mA Snubberless™ specs, R_th(j-c) = 1.4 °C/W	Requires reflow assembly and PCB copper area for thermal management instead of heatsink mounting	Choose T1250-600G for automated SMT production and higher power density layouts

Compared with BTA12-600BW, the RG suffix indicates tube packaging but identical electrical/thermal specs; versus T1250-600G, the TO-220AB insulated package offers simpler thermal design for through-hole industrial assemblies but requires mechanical isolation planning.

Availability

BTA12-600BRG is available at Aetrix Electronics and suitable for induction motor starters, smart appliance heating controls, and industrial static relays requiring stable component supply across extended product lifecycles.

Supply support for BTA12-600BRG 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, MEMS, and microcontrollers.

The BTA series belongs to ST's high-reliability AC power switching portfolio, engineered specifically for robust, insulated TRIAC operation in safety-critical mains-powered equipment.

FAQ

What is the maximum junction temperature for continuous operation?

The BTA12-600BRG has an operating junction temperature range of –40 °C to +125 °C. For sustained 12 A RMS conduction, case temperature must be maintained ≤90 °C per absolute maximum ratings, requiring appropriate heatsinking to manage 2.3 °C/W thermal resistance.

Does this part require a heat sink in typical 230 VAC applications?

Yes - at 12 A RMS, power dissipation exceeds 2 W. With R_th(j-c) = 2.3 °C/W and max T_j = 125 °C, a heatsink maintaining T_c ≤90 °C is mandatory. A 5–10 °C/W heatsink with thermal interface material is recommended for enclosed industrial environments.

Can BTA12-600BRG replace a non-insulated TRIAC like BTB12-600B?

No - the insulated tab (2500 VRMS) changes mechanical mounting requirements. While electrically interchangeable, BTA12-600BRG must be mounted with insulating hardware and cannot share the same heatsink layout as non-insulated BTB12 variants without risk of shorting.

Is a snubber circuit required for inductive loads?

No - the Snubberless™ design guarantees reliable commutation on inductive loads up to its rated dV/dt (400 V/µs) and (dI/dt)_c (6.5 A/ms). External snubbers are unnecessary unless system-level EMI testing reveals specific noise issues beyond datasheet limits.

BTA12-600BRG Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Active

Triac Type:: Standard

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

BTA12-600BRG FAQ

1.How can I place an order for BTA12-600BRG through Aetrix?

Please submit a Request for Quotation (RFQ) for BTA12-600BRG 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 BTA12-600BRG reliable?

The price and inventory of BTA12-600BRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTA12-600BRG is usually 5 days.

3.What payment methods are accepted for BTA12-600BRG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTA12-600BRG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BTA12-600BRG?

BTA12-600BRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BTA12-600BRG 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 BTA12-600BRG?

For technical support, including BTA12-600BRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTA12-600BRG requirements.

6.How does Aetrix verify that BTA12-600BRG is sourced from the original manufacturer or authorized distributors?

All BTA12-600BRG 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 BTA12-600BRG meets industry standards.

7.What is the process for return or replacement of BTA12-600BRG?

All BTA12-600BRG units undergo pre-shipment inspection (PSI). If there is an issue with BTA12-600BRG, 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 BTA12-600BRG part is unused and in its original packaging.

Return procedure for BTA12-600BRG:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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