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Home > Products > Discrete Semiconductor Products > Thyristors > TRIACs

STMicroelectronics BTB12-600CRG

Name: BTB12-600CRG
Brand: STMicroelectronics
SKU: BTB12-600CRG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BTB12-600CRG

Manufacturer:: STMicroelectronics

Category:: TRIACs

Package:: TO-220-3

Datasheet:: BTB12-600CRG.pdf

Description:: TRIAC 600V 12A TO220

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Product details

Overview

BTB12-600CRG 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), 1.3 V gate trigger voltage (VGT), 200 V/µs dV/dt rating at 125 °C, and UL1557 certification (file E81734) for reinforced insulation. Used in heating regulation, motor starting, and static relays with inductive loads.

For engineers reviewing the BTB12-600CRG datasheet, BTB12-600CRG pinout, BTB12-600CRG application, or BTB12-600CRG equivalent, this page delivers verified electrical specs, thermal resistance (Rth(j-c) = 2.3 °C/W), insulated tab rating (2500 VRMS), and real-world selection guidance for industrial AC power control designs.

Technical Context

This standard 4-quadrant triac operates without snubber circuitry in resistive or moderately inductive loads, supporting full-cycle AC conduction with gate-triggered turn-on in all quadrants. Its 25 mA IGT and 200 V/µs dV/dt ensure reliable triggering and commutation under typical 50/60 Hz mains conditions.

The TO-220AB insulated package integrates a ceramic isolation pad between the metal tab and die, enabling safe mounting to grounded heatsinks while maintaining 2500 VRMS isolation. Junction-to-case thermal resistance is fixed at 2.3 °C/W, allowing stable 12 A RMS operation at Tc ≤ 90 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
IT(RMS)	12 A - Sustains continuous AC load current up to 12 A RMS at case temperature ≤ 90 °C
VDRM / VRRM	600 V - Blocks 600 V peak off-state voltage in both directions, suitable for 230 VAC mains
IGT (Quadrants I–IV)	25 mA max - Low gate drive requirement compatible with microcontroller GPIO or optocoupler outputs
dV/dt (Tj = 125 °C)	200 V/µs min - Resists false triggering from voltage transients on AC line
Rth(j-c)	2.3 °C/W - Enables predictable thermal design with heatsink interface; 12 A operation requires Tc ≤ 90 °C
Isolation Rating	2500 VRMS - Reinforced insulation certified per UL1557 (E81734), allows direct mounting to earthed chassis
VGT	1.3 V max - Ensures gate turn-on with low-voltage logic-level drivers

Pinout & Package

BTB12-600CRG uses the TO-220AB insulated package with three terminals: Anode 1 (A1), Anode 2 (A2), and Gate (G). The metal tab is electrically isolated from the die via internal ceramic, rated 2500 VRMS, and serves solely as a thermal path.

Pin/Terminal	Circuit Role	Design Meaning
A1	Main terminal 1 (anode)	Reference node for gate trigger; connected to load return or neutral side in phase-control circuits
A2	Main terminal 2 (anode)	High-side connection to AC line; carries full load current and defines polarity reference for gate drive
G	Gate control input	Triggers conduction when ≥25 mA pulse applied relative to A1; polarity-insensitive for 4Q operation

Key Features

Feature	Design Value
UL1557-certified insulation	2500 VRMS reinforced isolation enables safe, grounded heatsink mounting without creepage/clearance redesign
Standard 4-quadrant operation	Triggers reliably in all four voltage/current quadrants-no external polarity management needed
200 V/µs dV/dt immunity	Prevents false turn-on during line transients common in motor or transformer switching environments
RoHS-compliant TO-220AB Ins. package	Lead-free leads and halogen-free epoxy meet EU Directive 2011/65/EU; UL94 V0 rated molding compound
Thermal resistance Rth(j-c) = 2.3 °C/W	Enables compact thermal design: 12 A RMS operation achievable with modest heatsinking at Tc ≤ 90 °C

Applications

Heating Regulation

Static Relay Control

Use Scenario: Precise temperature control in electric ovens, water heaters, and HVAC duct heaters using zero-crossing or phase-angle firing.

IC Role / Device Role / Timing Role: Main AC power switch triggered by microcontroller-driven optocoupler; handles bidirectional 230 VAC/12 A load current.

Use Value: Eliminates mechanical relay wear; 25 mA IGT ensures compatibility with low-power isolation drivers; 2500 VRMS isolation simplifies PCB layout and safety certification.

Use Scenario: Solid-state replacement for electromechanical relays in PLC output modules and industrial I/O cards driving solenoids, contactors, or lighting loads.

IC Role / Device Role / Timing Role: High-reliability AC switching element controlled by logic-level gate signals; supports both ON/OFF and burst-fire modes.

Use Value: 200 V/µs dV/dt prevents spurious turn-on from inductive kickback; UL-certified insulation removes need for air gaps or insulated mounting hardware.

Motor Starting Circuits

Appliance Speed Controllers

Use Scenario: Single-phase induction motor start-up in washing machines, compressors, and fans using centrifugal switch bypass or timed conduction.

IC Role / Device Role / Timing Role: Inrush-current-rated triac (120 A non-repetitive surge) providing initial torque boost before main winding engagement.

Use Value: 120 A ITSM rating handles locked-rotor currents; 2.3 °C/W Rth(j-c) supports short-duration high-current pulses without thermal runaway.

Use Scenario: Variable-speed control of universal motors in vacuum cleaners, power tools, and blenders via phase-angle dimming.

IC Role / Device Role / Timing Role: Line-synchronized AC power modulator; gate timing adjusted per user input to vary average motor power.

Use Value: 4Q operation ensures consistent turn-on across AC half-cycles; 1.3 V VGT guarantees triggering even with aged or low-output optocouplers.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 4-quadrant triac applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BTB12-600B	Same package and voltage rating, but 50 mA IGT (higher gate drive requirement)	Less suitable for low-power gate drivers; better for noisy environments where higher IGT improves noise immunity	Select when gate drive source can supply ≥50 mA and system prioritizes robustness over drive efficiency
BTA12-600CRG	Identical electrical specs and sensitivity, but TO-220AB Ins. package with same 2500 VRMS isolation	No functional difference; BTA12 variant has identical pinout and thermal performance but different marking convention	Drop-in substitute if BTA12-series sourcing or legacy BOM alignment is required; no design change needed

Compared with BTB12-600CRG, BTB12-600B demands higher gate current and suits ruggedized systems, while BTA12-600CRG offers identical performance in an alternate branded variant-both preserve 2500 VRMS isolation and 12 A/600 V capability without circuit modification.

Availability

BTB12-600CRG is available at Aetrix Electronics and suitable for heating regulation, static relay control, and motor starting applications requiring stable component supply, long-term industrial lifecycle support, and UL-certified insulation integrity.

Supply support for BTB12-600CRG 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, MCU, and sensor solutions for industrial, automotive, and consumer markets.

BTB12-600CRG belongs to ST's BTA/BTB/T12 triac family engineered specifically for robust, certified AC mains switching-emphasizing safety isolation, thermal reliability, and noise-immune commutation in harsh industrial environments.

FAQ

What is the maximum allowable case temperature for continuous 12 A RMS operation?

Per datasheet Table 1, BTB12-600CRG supports 12 A RMS only when case temperature (Tc) is held at or below 90 °C. Exceeding this limit risks thermal runaway due to reduced holding current and increased on-state voltage. Derating curves in Figure 2 confirm linear reduction to 0 A at 125 °C junction temperature.

Does BTB12-600CRG require a heatsink in all applications?

Yes-continuous 12 A RMS operation mandates a heatsink. With Rth(j-c) = 2.3 °C/W and typical Rth(c-a) > 20 °C/W for minimal copper area, junction temperature would exceed 125 °C without thermal management. Even at 6 A RMS, a small heatsink is recommended for reliability in enclosed or high-ambient environments.

Can BTB12-600CRG replace a non-insulated triac like BTB12-600B on the same PCB?

No-direct substitution is unsafe. BTB12-600CRG's insulated tab must be mounted to a grounded heatsink without electrical connection to A2, whereas BTB12-600B's tab is electrically tied to A2. Replacing one with the other requires layout revision to isolate the mounting surface and verify creepage/clearance compliance per UL1557.

Is BTB12-600CRG suitable for LED lamp dimming?

No-it is not optimized for LED dimming. Logic-level variants (e.g., BTB12-600TW with 5 mA IGT) are preferred for LED loads due to lower holding current and enhanced commutation for highly capacitive or reactive LED driver inputs. BTB12-600CRG's 25 mA IGT and standard 4Q behavior may cause flicker or incomplete turn-off with modern LED drivers.

BTB12-600CRG 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):: 25 mA

Current - Hold (Ih) (Max):: 25 mA

Configuration:: Single

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-220

BTB12-600CRG FAQ

1.How can I place an order for BTB12-600CRG through Aetrix?

Please submit a Request for Quotation (RFQ) for BTB12-600CRG 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 BTB12-600CRG reliable?

The price and inventory of BTB12-600CRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTB12-600CRG is usually 5 days.

3.What payment methods are accepted for BTB12-600CRG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTB12-600CRG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BTB12-600CRG?

BTB12-600CRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BTB12-600CRG 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 BTB12-600CRG?

For technical support, including BTB12-600CRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTB12-600CRG requirements.

6.How does Aetrix verify that BTB12-600CRG is sourced from the original manufacturer or authorized distributors?

All BTB12-600CRG 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 BTB12-600CRG meets industry standards.

7.What is the process for return or replacement of BTB12-600CRG?

All BTB12-600CRG units undergo pre-shipment inspection (PSI). If there is an issue with BTB12-600CRG, 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 BTB12-600CRG part is unused and in its original packaging.

Return procedure for BTB12-600CRG:

1.Submit a request within 90 days.

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

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