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STMicroelectronics BTB12-700CRG
- Part No.:
- BTB12-700CRG
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-220-3
- Datasheet:
-
BTB12-700CRG.pdf
- Description:
- TRIAC 700V 12A TO220
- Quantity:
- Payment:
- Shipping:
Inventory:5,132
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Product details
Overview
BTB12-700CRG from STMicroelectronics is a 12 A RMS, 700 V repetitive peak off-state voltage (VDRM/VRRM), glass-passivated triac in TO-220AB package, rated for 95 °C case temperature, with 120 A non-repetitive surge current (tp = 10 ms) and 72 A²s I²t rating, used for phase-controlled AC power switching in resistive and inductive loads.
For engineers reviewing the BTB12-700CRG datasheet, BTB12-700CRG pinout, BTB12-700CRG application, or BTB12-700CRG equivalent, key selection factors include gate trigger current (25 mA max, Quadrant C), critical dV/dt (≥5 V/µs commutation capability), thermal resistance (Rth(j–c) = 2.0 °C/W AC), and uninsulated TO-220AB mounting configuration.
Technical Context
This triac operates as a bidirectional AC switch controlled by a single gate terminal, supporting full-wave conduction in all four quadrants. Its glass-passivated PNPN structure enables high surge robustness and stable triggering across temperature (–40 to +125 °C operating junction range).
Designed for line-frequency (50/60 Hz) phase control, it features a minimum commutating dV/dt of 5 V/µs and critical dI/dt of 50 A/µs (repetitive), with gate sensitivity optimized for low-power driver circuits using 33 Ω load and 12 V DC test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RMS on-state current | 12 A at Tc = 95 °C - defines continuous AC load current handling with heatsink |
| VDRM / VRRM | 700 V - maximum repetitive blocking voltage per half-cycle, suitable for 230 VAC mains with margin |
| Non-repetitive surge current | 120 A (tp = 10 ms) - withstands motor startup or lamp inrush without failure |
| I²t rating | 72 A²s (tp = 10 ms) - quantifies fusing energy limit for fuse coordination and protection design |
| Gate trigger current | 25 mA max (Quadrant C) - determines minimum drive strength required from microcontroller or optocoupler |
| dV/dt (commutating) | ≥5 V/µs - ensures reliable turn-off under inductive load transients without false triggering |
| Junction temperature range | –40 to +125 °C - supports industrial ambient operation without derating below 95 °C case |
Pinout & Package
TO-220AB plastic package with uninsulated metal tab (A2 connected to tab); standard 3-pin through-hole mounting; tab serves as main terminal A2 and thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main Terminal 1 | Reference electrode for gate control; current flows between A1 and A2 when triggered |
| A2 (MT2) | Main Terminal 2 | Connected to metal tab; carries full load current and provides primary thermal conduction path |
| G | Gate | Control input; triggers conduction in all four quadrants; requires ≤25 mA pulse for Quadrant C turn-on |
Key Features
| Feature | Design Value |
|---|---|
| High surge current capability | 120 A non-repetitive surge (10 ms) enables robust handling of motor inrush and transformer energization |
| Commutating dV/dt | ≥5 V/µs ensures reliable commutation in inductive AC loads without snubber dependency |
| Low thermal resistance | Rth(j–c) = 2.0 °C/W (AC, 360°) allows efficient heat transfer to heatsink at full RMS load |
| Quadrant C sensitivity | IGT ≤ 25 mA enables direct drive from logic-level optocouplers (e.g., MOC3021) without amplification |
| Glass passivation | Hermetic junction protection improves long-term reliability in humid or contaminated environments |
Applications
| Industrial Motor Control | Resistive Heating Control |
|---|---|
Use Scenario: Speed and torque regulation of single-phase AC induction motors in pumps, fans, and compressors. IC Role / Device Role / Timing Role: Main power switching element in phase-angle controlled AC drive circuit. Use Value: 12 A RMS rating and 120 A surge support sustained motor startup; ≥5 V/µs dV/dt prevents false turn-on during inductive flyback. | Use Scenario: Precise temperature regulation in electric ovens, soldering irons, and HVAC duct heaters. IC Role / Device Role / Timing Role: Bidirectional AC switch modulating power delivery via zero-cross or phase-cut dimming. Use Value: 700 V blocking voltage accommodates 230 VAC mains with safety margin; 25 mA gate trigger simplifies microcontroller interface. |
| Lighting Dimming Systems | Static AC Power Switching |
Use Scenario: Leading-edge dimming of incandescent and halogen lamps in residential and commercial lighting. IC Role / Device Role / Timing Role: Phase-controlled AC switch synchronized to line voltage zero-crossing. Use Value: Quadrant C gate sensitivity (25 mA max) ensures compatibility with standard TRIAC driver ICs; TO-220AB package enables mechanical mounting to heatsink. | Use Scenario: Solid-state replacement of electromechanical relays in PLC output modules and power distribution panels. IC Role / Device Role / Timing Role: Fail-safe, wear-free AC load switching with galvanic isolation via external optocoupler. Use Value: 72 A²s I²t rating allows coordination with fast-acting fuses; uninsulated tab enables direct heatsink contact for thermal management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triac switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTB12-700CWG | Same 12 A / 700 V ratings but Quadrant W (IGT ≤ 50 mA), higher gate drive requirement | Suitable where gate drive strength exceeds 50 mA; less sensitive but more noise-immune | Select when system uses higher-current gate drivers or prioritizes noise immunity over low drive power |
| BTB12-700B | Identical electrical specs but Quadrant B (IGT ≤ 50 mA), same higher gate threshold as CWG | Compatible with legacy designs specifying B-suffix; no change in thermal or surge performance | Choose for drop-in replacement in existing B-suffix designs; verify gate driver compliance with 50 mA max IGT |
Compared with BTB12-700CWG and BTB12-700B, the BTB12-700CRG offers the lowest gate trigger current (25 mA), reducing driver complexity and power consumption-critical for battery-powered or microcontroller-driven dimmers and controllers.
Availability
BTB12-700CRG is available at Aetrix Electronics and suitable for industrial motor control, resistive heating systems, lighting dimming circuits, and static AC power switching requiring stable component supply and long-term manufacturability.
Supply support for BTB12-700CRG 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 BTB/BTA triac family was developed for cost-effective, high-reliability AC power control in industrial and consumer equipment, emphasizing surge robustness, thermal efficiency, and gate-drive simplicity.
FAQ
Is BTB12-700CRG insulated or uninsulated?
BTB12-700CRG is an uninsulated triac: its metal tab is electrically connected to terminal A2 (MT2). This requires proper isolation from chassis ground when mounted to a heatsink. Insulated variants (e.g., BTA12-700CRG) use a dielectric pad and isolated tab.
What does the 'C' suffix indicate in BTB12-700CRG?
The 'C' denotes Quadrant C gate sensitivity: maximum gate trigger current of 25 mA at 25 °C with 12 V DC and 33 Ω load. This is the most sensitive grade among BTB12 variants, enabling low-power drive from standard optocouplers.
Can BTB12-700CRG replace BTA12-700CRG in a design?
No direct replacement: BTB12-700CRG has lower thermal resistance (2.0 °C/W vs. 2.5 °C/W for BTA) and higher case temperature rating (95 °C vs. 90 °C), but lacks electrical insulation. Mechanical redesign for heatsink isolation is required if substituting for BTA.
What is the maximum allowable lead temperature during soldering?
The maximum lead temperature is 260 °C for 10 seconds at 4.5 mm from the case. Exceeding this risks internal bond wire damage or passivation layer degradation, potentially compromising surge capability and long-term reliability.
BTB12-700CRG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- Triac Type:
- Standard
- Voltage - Off State:
- 700 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
BTB12-700CRG FAQ
1.How can I place an order for BTB12-700CRG through Aetrix?
Please submit a Request for Quotation (RFQ) for BTB12-700CRG 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 BTB12-700CRG reliable?
The price and inventory of BTB12-700CRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTB12-700CRG is usually 5 days.
3.What payment methods are accepted for BTB12-700CRG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTB12-700CRG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTB12-700CRG?
BTB12-700CRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTB12-700CRG 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 BTB12-700CRG?
For technical support, including BTB12-700CRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTB12-700CRG requirements.
6.How does Aetrix verify that BTB12-700CRG is sourced from the original manufacturer or authorized distributors?
All BTB12-700CRG 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 BTB12-700CRG meets industry standards.
7.What is the process for return or replacement of BTB12-700CRG?
All BTB12-700CRG units undergo pre-shipment inspection (PSI). If there is an issue with BTB12-700CRG, 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 BTB12-700CRG part is unused and in its original packaging.
Return procedure for BTB12-700CRG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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