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STMicroelectronics BTA10-800CWRG
- Part No.:
- BTA10-800CWRG
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-220-3
- Datasheet:
-
BTA10-800CWRG.pdf
- Description:
- TRIAC ALTERNISTOR 800V 10A TO220
- Quantity:
- Payment:
- Shipping:
Inventory:200
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Product details
Overview
BTA10-800CWRG from STMicroelectronics is a 10 A, 800 V Snubberless™ 3-quadrant triac in insulated TO-220AB package, designed for reliable AC mains switching in inductive loads without external snubbers. It delivers 500 V/µs dV/dt immunity at 125 °C, 9 A/ms commutation capability, and UL1557-certified 2500 VRMS isolation - enabling use in motor speed controllers and static relays.
For engineers reviewing the BTA10-800CWRG datasheet, BTA10-800CWRG pinout, BTA10-800CWRG application, or BTA10-800CWRG equivalent, key selection criteria include insulated tab rating, 3Q commutation performance, gate trigger current (35 mA max), thermal resistance (2.4 °C/W j-c), and RoHS-compliant packaging for industrial AC control designs.
Technical Context
This triac operates in three quadrants (I, II, III) with no gate sensitivity in quadrant IV, eliminating false triggering from noise on inductive loads. Its internal ceramic insulation enables 2500 VRMS isolation between tab and MT1/MT2 terminals, satisfying reinforced insulation requirements per UL1557 (file E81734).
The device features a low dynamic on-state resistance (40 mΩ at 125 °C) and high critical rate of rise of on-state current (50 A/µs), supporting robust turn-on under high di/dt conditions. Thermal design is enabled by Rth(j-c) = 2.4 °C/W (insulated TO-220AB) and junction temperature range of –40 to +125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 10 A RMS - supports continuous 120/240 VAC load switching up to 2.4 kW resistive or 1.8 kW inductive. |
| VDRM / VRRM | 800 V - withstands peak line voltages up to 566 V (240 VAC) with 234 V margin, suitable for global mains (100–240 VAC). |
| IGT (max) | 35 mA - logic-level compatible gate drive; enables direct interface with microcontrollers or optocouplers without amplification. |
| dV/dt (min) | 500 V/µs at 125 °C - prevents false turn-on during voltage transients on inductive loads like motors or transformers. |
| (dI/dt)c (min) | 9 A/ms - sustains high-current turn-on without commutation failure in snubberless operation on reactive loads. |
| Rth(j-c) | 2.4 °C/W - allows 10 A conduction at Tc ≤ 95 °C with ≤24 W power dissipation, simplifying heatsink sizing. |
| Isolation Rating | 2500 VRMS - certified reinforced insulation meets UL1557 (E81734), enabling safe mounting to grounded chassis. |
Pinout & Package
Insulated TO-220AB package with electrically isolated metal tab (MT2-connected), 3-pin through-hole configuration. Tab provides mechanical mounting and thermal path while remaining galvanically isolated from main terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MT1 (Main Terminal 1) | Anode 1 / return path | Reference terminal for gate triggering; polarity-sensitive connection point for AC load return. |
| MT2 (Main Terminal 2) | Anode 2 / load feed | Connected to isolated tab; carries full load current and serves as primary thermal interface to heatsink. |
| G (Gate) | Control input | Triggers conduction when referenced to MT1; requires ≥35 mA pulse for guaranteed turn-on in all 3 quadrants. |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless™ 3Q operation | Eliminates need for RC snubber networks on inductive loads, reducing BOM count and PCB area in motor controls. |
| UL1557-certified isolation | 2500 VRMS reinforced insulation enables direct chassis-mounting without creepage/clearance barriers. |
| Low IGT (35 mA max) | Reduces gate driver power requirement; compatible with standard optotriacs (e.g., MOC3023) and MCU GPIOs. |
| High (dI/dt)c (9 A/ms) | Ensures reliable commutation during zero-crossing switching of inductive currents up to 10 A RMS. |
| RoHS-compliant ECOPACK® | Meets EU Directive 2002/95/EC; lead-free termination and halogen-free molding compound. |
Applications
| Motor Speed Control | Static Relay Module |
|---|---|
|
Use Scenario: Variable-speed control of universal or single-phase induction motors in appliances (e.g., blenders, power tools). IC Role / Device Role / Timing Role: Main AC power switch triggered by phase-controlled gate pulses from microcontroller-driven optocoupler. Use Value: Snubberless™ operation eliminates snubber losses and component stress during motor coil current interruption. |
Use Scenario: Solid-state replacement for electromechanical relays in HVAC zone actuators and PLC output modules. IC Role / Device Role / Timing Role: Bidirectional AC switch providing galvanically isolated load control with zero-crossing detection. Use Value: Insulated tab enables direct heatsink mounting to grounded enclosure, meeting IEC 61800-5-1 safety requirements. |
| Heating Element Regulation | Light Dimmer Circuit |
|
Use Scenario: Proportional power delivery to resistive heating elements in ovens, water heaters, and soldering stations. IC Role / Device Role / Timing Role: Phase-angle controlled AC switch modulating RMS power via gate timing relative to AC zero-crossing. Use Value: 800 V blocking rating accommodates 240 VAC surge transients (e.g., lightning-induced spikes) without breakdown. |
Use Scenario: Leading-edge dimming of incandescent and halogen lamps in residential and commercial lighting. IC Role / Device Role / Timing Role: High-dV/dt triac triggered by DIAC-based timing circuit to control conduction angle per half-cycle. Use Value: 500 V/µs dV/dt immunity prevents false triggering from lamp filament inrush current transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-quadrant snubberless triac applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTA10-800BWRG | Higher IGT (50 mA max) and lower dV/dt (1000 V/µs) - less sensitive gate, higher noise immunity. | Better suited for noisy industrial environments where gate false-triggering risk exceeds need for low-drive capability. | Select when gate drive strength >35 mA is available and system EMI is severe. |
| T1035-8G | D²PAK surface-mount package; same 35 mA IGT but higher Rth(j-a) (45 °C/W); no insulated tab. | Requires PCB copper pour for thermal management; unsuitable for chassis-mounted isolation-critical designs. | Select for space-constrained SMT assemblies where isolation is handled externally (e.g., opto-isolated gate drive). |
Compared with BTA10-800BWRG, the CWRG variant offers lower gate drive burden and tighter dV/dt spec for cleaner phase control; versus T1035-8G, it trades SMT compatibility for certified isolation and superior thermal coupling to heatsinks.
Availability
BTA10-800CWRG is available at Aetrix Electronics and suitable for motor speed controllers, static relay modules, and heating regulation systems requiring stable component supply, long-lifecycle support, and UL-certified isolation.
Supply support for BTA10-800CWRG 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, and microcontroller solutions for industrial, automotive, and consumer markets.
BTA10-800CWRG belongs to the Snubberless™ Triac product line, engineered specifically for robust, snubber-free AC switching in inductive and capacitive load applications across mains-powered equipment.
FAQ
What is the maximum allowable case temperature for continuous 10 A operation?
The datasheet specifies IT(RMS) = 10 A at Tc = 95 °C for the insulated TO-220AB package. Exceeding this temperature reduces safe operating current due to thermal derating; sustained operation above 95 °C requires reduced load or enhanced heatsinking per Figure 3 in DS3165.
Can BTA10-800CWRG be used in quadrant IV?
No - BTA10-800CWRG is a 3-quadrant triac (Q1, Q2, Q3 only). Gate triggering is not specified or guaranteed in quadrant IV (MT2 negative, gate positive), and attempting operation there may result in unreliable turn-on or increased IGT variation.
Is the insulated tab electrically connected to any internal terminal?
Yes - the insulated metal tab is internally connected to MT2. The ceramic layer provides 2500 VRMS isolation between MT2 and the mounting surface, but MT2 remains the reference for both load current and thermal path.
Does the 'W' suffix guarantee snubberless operation on all inductive loads?
The 'W' suffix indicates Snubberless™ design validated for typical inductive loads (e.g., motors, transformers) per IEC 61000-4-4 and ST's internal commutation tests. However, extreme L/R ratios or uncontrolled turn-off conditions may still require supplemental protection per application-specific validation.
BTA10-800CWRG 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:
- 800 V
- Current - On State (It (RMS)) (Max):
- 10 A
- Voltage - Gate Trigger (Vgt) (Max):
- 1.3 V
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 100A, 105A
- Current - Gate Trigger (Igt) (Max):
- 35 mA
- Current - Hold (Ih) (Max):
- 35 mA
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
BTA10-800CWRG FAQ
1.How can I place an order for BTA10-800CWRG through Aetrix?
Please submit a Request for Quotation (RFQ) for BTA10-800CWRG 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 BTA10-800CWRG reliable?
The price and inventory of BTA10-800CWRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTA10-800CWRG is usually 5 days.
3.What payment methods are accepted for BTA10-800CWRG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTA10-800CWRG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTA10-800CWRG?
BTA10-800CWRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTA10-800CWRG 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 BTA10-800CWRG?
For technical support, including BTA10-800CWRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTA10-800CWRG requirements.
6.How does Aetrix verify that BTA10-800CWRG is sourced from the original manufacturer or authorized distributors?
All BTA10-800CWRG 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 BTA10-800CWRG meets industry standards.
7.What is the process for return or replacement of BTA10-800CWRG?
All BTA10-800CWRG units undergo pre-shipment inspection (PSI). If there is an issue with BTA10-800CWRG, 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 BTA10-800CWRG part is unused and in its original packaging.
Return procedure for BTA10-800CWRG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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