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STMicroelectronics BTB12-600BWRG
- Part No.:
- BTB12-600BWRG
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-220-3
- Datasheet:
-
BTB12-600BWRG.pdf
- Description:
- TRIAC ALTERNISTOR 600V 12A TO220
- Quantity:
- Payment:
- Shipping:
Inventory:1,940
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Product details
Overview
BTB12-600BWRG from STMicroelectronics is a 12 A, 600 V Snubberless™ triac in TO-220AB package, designed for robust AC mains switching in inductive loads. It delivers 50 mA gate trigger current (IGT), 2500 VRMS insulated tab rating per UL1557 (E81734), and 50 A/µs critical di/dt at 125 °C - enabling reliable phase control in motor speed controllers and static relays without external snubbers.
For engineers reviewing the BTB12-600BWRG datasheet, BTB12-600BWRG pinout, BTB12-600BWRG application, or BTB12-600BWRG equivalent, key selection criteria include its 600 V off-state blocking voltage, 50 mA Snubberless™ IGT, insulated TO-220AB thermal performance (Rth(j–c) = 2.3 °C/W), and UL-certified isolation for industrial AC load switching.
Technical Context
This triac operates in three quadrants (I, II, III) with high commutation capability optimized for inductive loads. Its internal ceramic insulation enables 2500 VRMS isolation between tab and die, meeting UL1557 requirements without external barrier materials.
The device uses Snubberless™ architecture to sustain dV/dt up to 1000 V/µs at 125 °C and supports critical di/dt ≥6.5 A/ms under high dV/dt conditions - eliminating need for RC snubbers in motor starting and heating regulation circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 12 A RMS on-state current - supports continuous 1.5 kW resistive or inductive AC loads at Tc = 90 °C |
| VDRM / VRRM | 600 V repetitive peak off-state voltage - ensures safe operation across 230 VAC mains with margin |
| IGT (Snubberless) | 50 mA max gate trigger current - enables direct drive from microcontrollers or optocouplers without amplification |
| dV/dt (min) | 1000 V/µs at 125 °C - prevents false triggering during fast transients in motor or transformer circuits |
| Rth(j–c) | 2.3 °C/W junction-to-case thermal resistance - allows 12 A conduction with ≤27.6 W power dissipation at ΔT = 63.5 °C |
| Isolation Rating | 2500 VRMS reinforced insulation - satisfies UL1557 (file E81734) for safety-critical industrial equipment |
| Package | TO-220AB insulated - metal tab electrically isolated for mounting on grounded heatsinks without additional insulation |
Pinout & Package
BTB12-600BWRG uses an insulated TO-220AB package with electrically isolated tab. The case serves as the A2 terminal, while the two leads are A1 and G. Mounting requires torque of 0.55 N·m (max 0.70 N·m) to ensure thermal integrity without compromising insulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Main Terminal 1 | Reference electrode for gate triggering; connected to load return path in standard AC switch configuration |
| A2 | Main Terminal 2 | Connected to insulated metal tab; serves as high-side AC line connection with 2500 VRMS isolation |
| G | Gate | Controls conduction onset; triggers at ≤50 mA into 30 Ω load at 12 V, compatible with MOC302x/MOC304x optocouplers |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless™ operation | Eliminates external RC snubber components in inductive load switching, reducing BOM count and PCB area |
| UL1557 certified insulation | 2500 VRMS reinforced isolation enables direct mounting on grounded heatsinks in Class I appliances |
| High commutation capability | Sustains 6.5 A/ms critical di/dt at 10 V/µs dV/dt - essential for reliable turn-off in motor windings and solenoids |
| Low thermal resistance | 2.3 °C/W junction-to-case enables 12 A RMS operation with modest heatsinking (e.g., 10 cm² aluminum) |
| RoHS-compliant packaging | Meets EU Directive 2011/65/EU; lead-free terminations and halogen-free molding compound (UL V0 rated) |
Applications
| Induction Motor Starting | Industrial Static Relay |
|---|---|
|
Use Scenario: Controlling single-phase induction motors in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Main AC power switch enabling zero-crossing or phase-angle control during start-up and run cycles. Use Value: High dV/dt immunity (1000 V/µs) prevents false triggering from back-EMF spikes during motor commutation. |
Use Scenario: Solid-state replacement for electromechanical relays in PLC output modules. IC Role / Device Role / Timing Role: Isolated AC load switch triggered by 5 V logic-level signals via optocoupler interface. Use Value: 2500 VRMS insulated tab eliminates need for creepage/clearance barriers, simplifying CE-compliant enclosure design. |
| Heating Regulation | Light Dimmer (Incandescent/Halogen) |
|
Use Scenario: Power control in commercial ovens, soldering stations, and process heaters. IC Role / Device Role / Timing Role: Phase-controlled AC power delivery to resistive heating elements. Use Value: 12 A RMS rating supports up to 2.76 kW at 230 VAC, with thermal stability ensured by Rth(j–c) = 2.3 °C/W. |
Use Scenario: Leading-edge dimming circuits for residential and commercial lighting systems. IC Role / Device Role / Timing Role: Bidirectional AC switch synchronized to line zero-crossing for smooth brightness adjustment. Use Value: 50 mA IGT ensures compatibility with standard triac driver ICs (e.g., MOC3023) without gate amplification. |
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 |
|---|---|---|---|
| BTA12-600BWRG | Insulated TO-220AB package; identical IGT, VDRM, and isolation rating | Same footprint and isolation, but higher Rth(j–c) (2.3 vs. 1.4 °C/W) due to insulation layer | Select when UL-certified isolation is mandatory and heatsink grounding is required |
| T1250-600G | D²PAK surface-mount package; same 50 mA Snubberless™ IGT and 600 V rating | No isolation; requires PCB-level creepage management; lower thermal resistance (1.4 °C/W) | Select for space-constrained, high-volume SMT designs where isolation is handled at system level |
Compared with BTA12-600BWRG, BTB12-600BWRG offers identical electrical specs but optimized mechanical insulation for grounded heatsink mounting; versus T1250-600G, it trades SMT compatibility for reinforced safety isolation and through-hole assembly robustness.
Availability
BTB12-600BWRG is available at Aetrix Electronics and suitable for industrial static relays, HVAC motor controls, and commercial heating regulation requiring stable component supply and long-term lifecycle support.
Supply support for BTB12-600BWRG 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 discrete devices, microcontrollers, and analog ICs for industrial, automotive, and consumer markets.
BTB12-600BWRG belongs to ST's Snubberless™ triac product line, engineered specifically for reliable, snubber-free AC power control in inductive and resistive loads across mains-powered industrial equipment.
FAQ
What is the maximum allowable case temperature for continuous 12 A operation?
Per DS2115 Rev 12, BTB12-600BWRG supports 12 A RMS at Tc = 90 °C. Exceeding this temperature reduces current derating per Figure 2; at 100 °C case temperature, maximum IT(RMS) drops to ~10.5 A. Thermal design must maintain tab temperature ≤90 °C using appropriate heatsinking and mounting torque (0.55 N·m).
Does BTB12-600BWRG require a heat sink in all applications?
Yes - even at 12 A RMS, power dissipation reaches ~12 W (VTM ≈ 1.55 V × 12 A × conduction angle factor). With Rth(j–c) = 2.3 °C/W and ambient limits, a heatsink is mandatory to keep junction temperature ≤125 °C. Minimum recommended copper area is 20 cm² on FR4 PCB, or an aluminum heatsink with thermal resistance ≤10 °C/W.
Can BTB12-600BWRG replace a standard 4-quadrant triac like BT139-600?
No - BTB12-600BWRG is a 3-quadrant Snubberless™ device (quadrants I, II, III only). It cannot be triggered in quadrant IV, unlike 4Q triacs. Substitution requires circuit redesign to avoid negative gate-to-A1 voltage during A2-negative half-cycles, or verification that gate drive remains within I/II/III operating zones.
What is the significance of the "RG" suffix in BTB12-600BWRG?
The "RG" suffix denotes tube packaging (50 units per tube), per ST's ordering scheme. It has no electrical or functional impact - BTB12-600BWRG is identical in specification to BTB12-600BW, differing only in packaging format for handling and automated assembly compatibility.
BTB12-600BWRG 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):
- 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
BTB12-600BWRG FAQ
1.How can I place an order for BTB12-600BWRG through Aetrix?
Please submit a Request for Quotation (RFQ) for BTB12-600BWRG 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 BTB12-600BWRG reliable?
The price and inventory of BTB12-600BWRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTB12-600BWRG is usually 5 days.
3.What payment methods are accepted for BTB12-600BWRG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTB12-600BWRG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTB12-600BWRG?
BTB12-600BWRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTB12-600BWRG 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 BTB12-600BWRG?
For technical support, including BTB12-600BWRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTB12-600BWRG requirements.
6.How does Aetrix verify that BTB12-600BWRG is sourced from the original manufacturer or authorized distributors?
All BTB12-600BWRG 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 BTB12-600BWRG meets industry standards.
7.What is the process for return or replacement of BTB12-600BWRG?
All BTB12-600BWRG units undergo pre-shipment inspection (PSI). If there is an issue with BTB12-600BWRG, 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 BTB12-600BWRG part is unused and in its original packaging.
Return procedure for BTB12-600BWRG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BTB12-600BWRG Tags
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STMicroelectronics
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