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STMicroelectronics BTA10-800BWRG
- Part No.:
- BTA10-800BWRG
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-220-3
- Datasheet:
-
BTA10-800BWRG.pdf
- Description:
- TRIAC ALTERNISTOR 800V 10A TO220
- Quantity:
- Payment:
- Shipping:
Inventory:10,955
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Product details
Overview
BTA10-800BWRG from STMicroelectronics is a 10 A, 800 V Snubberless™ triac in insulated TO-220AB package, designed for robust AC mains switching in inductive loads. It delivers 50 mA gate trigger current (IGT), 1000 V/µs dV/dt immunity at 125 °C, and 2500 VRMS isolation between tab and circuit, enabling direct mounting on heatsinks without additional insulation.
For engineers reviewing the BTA10-800BWRG datasheet, BTA10-800BWRG pinout, BTA10-800BWRG application, or BTA10-800BWRG equivalent, this part is selected for high-reliability phase control in motor speed controllers, static relays, and heating regulation where snubber-free operation on inductive loads is required.
Technical Context
This triac operates in three quadrants (I, II, III) with Snubberless™ capability, supporting commutation without external snubbers under high inductive stress. Its internal ceramic insulation ensures UL1557 certification (file E81734) and 2500 VRMS isolation rating.
It features a low junction-to-case thermal resistance of 2.4 °C/W, 50 A/µs critical rate of rise of on-state current (dl/dt), and guaranteed turn-on at 50 mA IGT across –40 to +125 °C operating range - optimized for industrial-grade AC power control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 10 A RMS on-state current - supports continuous 1.2 kW resistive load at 120 VAC or 2.4 kW at 240 VAC with proper heatsinking. |
| VDRM / VRRM | 800 V peak repetitive off-state voltage - withstands 240 VAC mains with >2× safety margin against line surges. |
| IGT (max) | 50 mA gate trigger current - compatible with standard microcontroller GPIO or optocoupler drivers without amplification. |
| dV/dt (min) | 1000 V/µs at Tj = 125 °C - enables reliable triggering on highly inductive loads (e.g., induction motors) without false turn-on. |
| Rth(j–c) | 2.4 °C/W (insulated TO-220AB) - allows 10 A conduction with ≤24 °C temperature rise above heatsink at full load. |
| Isolation Rating | 2500 VRMS (tab-to-circuit) - eliminates need for insulating washers when mounted to grounded metal chassis. |
| (dI/dt)c | 9 A/ms minimum commutation capability - sustains turn-off during rapid current decay in inductive circuits without retriggering. |
Pinout & Package
Package: Insulated TO-220AB (UL-certified ceramic pad, tab electrically isolated). Dimensions per DS3165 Rev 9: A = 15.2–15.9 mm, B = 10.0–10.4 mm, L = 2.65–2.95 mm, tab thickness ≈ 0.23 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main Terminal 1 | Reference terminal for gate drive; connected to load return or neutral side in AC switching topologies. |
| A2 (MT2) | Main Terminal 2 | High-side AC line connection; carries full load current and defines polarity reference for gate triggering. |
| G | Gate | Low-energy control input; triggers conduction when pulsed with ≥50 mA (typ. 35 mA) into 33 Ω load at 12 V. |
| Tab (isolated) | Thermal path / mechanical anchor | Electrically isolated (2500 VRMS) metal surface for direct heatsink mounting; no external insulator required. |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless™ 3Q operation | Eliminates external RC snubber networks in motor and transformer loads - reduces BOM count and board space by ~3 components per channel. |
| UL1557 certified insulation | 2500 VRMS isolation meets reinforced insulation requirements for Class I appliances - simplifies safety certification. |
| High dV/dt immunity | 1000 V/µs at 125 °C ensures stable blocking during fast transients from relay bounce or inductive kickback. |
| Low thermal resistance | 2.4 °C/W junction-to-case enables compact thermal design - achieves <100 °C junction temp at 10 A with 40 °C heatsink. |
| RoHS-compliant ECOPACK® | Meets EU Directive 2002/95/EC - no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE in packaging or die attach. |
Applications
| Induction Motor Speed Control | Static Relay Replacement |
|---|---|
|
Use Scenario: Variable-speed control of single-phase induction motors in HVAC blowers and washing machine drum drives. IC Role / Device Role / Timing Role: Main AC power switch executing phase-angle control via zero-crossing synchronized gate pulses. Use Value: Snubberless™ operation prevents false triggering during motor back-EMF spikes, eliminating snubber capacitor failure risk over 10-year life. |
Use Scenario: Solid-state replacement of electromechanical relays in PLC output modules and industrial control panels. IC Role / Device Role / Timing Role: Bidirectional AC switching element handling 10 A resistive or inductive loads with galvanic isolation. Use Value: 2500 VRMS insulated tab enables direct PCB-mount heatsinking to grounded chassis - cuts assembly time vs. insulated mounting kits. |
| Heating Element Regulation | Light Dimmer Circuits |
|
Use Scenario: Proportional power delivery to resistive heating elements in commercial ovens and water heaters. IC Role / Device Role / Timing Role: High-current AC switch modulated via leading-edge phase control to regulate average power. Use Value: 10 A RMS rating supports up to 2.4 kW at 240 VAC with <1.55 V on-state drop - minimizes conduction loss and heatsink size. |
Use Scenario: Mains-connected dimming of incandescent and halogen lamps in residential and hospitality lighting. IC Role / Device Role / Timing Role: AC line switch triggered synchronously with zero-crossing detection for smooth brightness adjustment. Use Value: 50 mA IGT ensures compatibility with common MOC30xx optotriacs - avoids need for gate driver transistors in cost-sensitive designs. |
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 |
|---|---|---|---|
| BTB10-800BWRG | Non-insulated TO-220AB package; tab electrically connected to A2 (MT2). | Requires insulating kit for heatsink mounting; unsuitable where tab isolation is mandatory for safety. | Select when chassis grounding permits direct tab connection and cost reduction is prioritized over isolation. |
| T1050-8G | D²PAK surface-mount package; 10 A/800 V Snubberless™; Rth(j–c) = 1.5 °C/W. | No through-hole mounting; requires PCB copper area ≥2 cm² for thermal performance; not UL-insulated. | Select for automated SMT production and higher power density; add external isolation if safety-rated mounting needed. |
Compared with BTB10-800BWRG and T1050-8G, BTA10-800BWRG uniquely combines UL-certified 2500 VRMS tab isolation, through-hole reliability, and Snubberless™ inductive load resilience - making it optimal for safety-critical, field-serviceable AC power controls.
Availability
BTA10-800BWRG is available at Aetrix Electronics and suitable for static relay replacements, induction motor speed controllers, and heating regulation systems requiring stable component supply and long-term lifecycle support.
Supply support for BTA10-800BWRG 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, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.
BTA10-800BWRG belongs to the BTA/BTB/T10xx triac family engineered specifically for reliable, snubber-free AC mains switching in safety-critical industrial and appliance applications.
FAQ
What is the maximum junction temperature for continuous operation?
The BTA10-800BWRG has an operating junction temperature range of –40 to +125 °C. Continuous conduction at 10 A RMS requires maintaining Tj ≤ 125 °C via heatsinking - achievable with a 2.4 °C/W thermal path and ≤40 °C heatsink temperature under full load.
Does the insulated tab require thermal compound when mounted to a heatsink?
Yes. Although the ceramic pad provides electrical isolation, thermal interface material (e.g., silicone grease or phase-change pad) is required between the insulated tab and heatsink to minimize thermal resistance and ensure reliable heat transfer at rated current.
Can BTA10-800BWRG replace a standard 4-quadrant triac in existing designs?
Only if the application uses only quadrants I, II, and III - BTA10-800BWRG is a 3-quadrant Snubberless™ device and does not trigger reliably in quadrant IV. Gate drive must be referenced to A1, and load configuration must avoid reverse-gate-voltage conditions.
What is the minimum gate pulse width required for reliable turn-on?
ST specifies a gate pulse width ≥20 µs for guaranteed turn-on at rated IGT. For robust operation across temperature and aging, a 100 µs pulse is recommended - especially when driving from optocouplers with slower fall times or under high junction temperature.
BTA10-800BWRG 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):
- 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
BTA10-800BWRG FAQ
1.How can I place an order for BTA10-800BWRG through Aetrix?
Please submit a Request for Quotation (RFQ) for BTA10-800BWRG 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 BTA10-800BWRG reliable?
The price and inventory of BTA10-800BWRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTA10-800BWRG is usually 5 days.
3.What payment methods are accepted for BTA10-800BWRG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTA10-800BWRG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTA10-800BWRG?
BTA10-800BWRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTA10-800BWRG 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 BTA10-800BWRG?
For technical support, including BTA10-800BWRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTA10-800BWRG requirements.
6.How does Aetrix verify that BTA10-800BWRG is sourced from the original manufacturer or authorized distributors?
All BTA10-800BWRG 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 BTA10-800BWRG meets industry standards.
7.What is the process for return or replacement of BTA10-800BWRG?
All BTA10-800BWRG units undergo pre-shipment inspection (PSI). If there is an issue with BTA10-800BWRG, 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 BTA10-800BWRG part is unused and in its original packaging.
Return procedure for BTA10-800BWRG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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