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STMicroelectronics BTB10-800BWRG
- Part No.:
- BTB10-800BWRG
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-220-3
- Datasheet:
-
BTB10-800BWRG.pdf
- Description:
- TRIAC ALTERNISTOR 800V 10A TO220
- Quantity:
- Payment:
- Shipping:
Inventory:1,866
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Product details
Overview
BTB10-800BWRG 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 critical dV/dt (125 °C), and 9 A/ms commutation capability (3Q), enabling reliable phase control in motor speed controllers without external snubbers.
For engineers reviewing the BTB10-800BWRG datasheet, BTB10-800BWRG pinout, BTB10-800BWRG application, or BTB10-800BWRG equivalent, key selection criteria include insulated tab rating (2500 VRMS), thermal resistance (Rth(j-c) = 2.4 °C/W), I²t fusing value (55 A²s), and UL1557 certification (file E81734).
Technical Context
This triac operates in three quadrants (I, II, III) with Snubberless™ architecture, eliminating need for external RC snubbers on inductive loads. Its internal ceramic insulation enables 2500 VRMS isolation between tab and MT1/MT2 terminals, meeting UL1557 requirements.
It features high commutation performance: minimum (dI/dt)c = 9 A/ms at 125 °C and dV/dt ≥ 1000 V/µs under gate-open conditions, ensuring reliable turn-off during reactive load zero-crossing transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 10 A RMS - supports continuous mains switching up to 1.2 kW at 120 VAC or 2.4 kW at 240 VAC with proper heatsinking. |
| VDRM/VRRM | 800 V - withstands peak line voltages up to 566 V (240 VAC) with 1.4× safety margin for surge transients. |
| IGT | 50 mA max - compatible with standard microcontroller GPIO or optocoupler drivers without additional amplification. |
| dV/dt (125 °C) | 1000 V/µs min - prevents false triggering during fast voltage transients common in motor and transformer circuits. |
| (dI/dt)c | 9 A/ms min - ensures clean commutation when interrupting inductive currents up to 10 A without oscillation. |
| Rth(j-c) | 2.4 °C/W - enables thermal design with ≤ 24 W dissipation at Tc = 95 °C, supporting compact heatsink solutions. |
| I²t (tp=10 ms) | 55 A²s - defines fuse coordination threshold; withstands single half-cycle surges up to 105 A (60 Hz). |
Pinout & Package
BTB10-800BWRG uses an insulated TO-220AB package with electrically isolated metal tab rated at 2500 VRMS. The tab is internally connected to MT2 and serves as both heat sink interface and functional terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MT1 (Main Terminal 1) | Anode of first SCR segment | Primary current return path; referenced to gate for triggering in Quadrants I and II. |
| MT2 (Main Terminal 2) | Cathode of first SCR segment / Anode of second | Connected to insulated tab; carries full load current and provides thermal path to heatsink. |
| G (Gate) | Trigger control input | Low-energy input (≤50 mA) enabling logic-level drive; polarity-sensitive for Q1/Q2/Q3 operation. |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless™ 3Q operation | Eliminates external RC snubber components in motor and transformer loads, reducing BOM count and PCB area. |
| UL1557-certified insulation | 2500 VRMS isolation between tab and MT1/G terminals satisfies reinforced insulation requirements for Class I appliances. |
| High dV/dt immunity | 1000 V/µs minimum at 125 °C ensures stable operation in noisy industrial environments with variable-frequency drives. |
| Low thermal resistance | 2.4 °C/W junction-to-case enables >95 °C case temperature operation with standard extruded heatsinks. |
| RoHS-compliant ECOPACK® | Meets EU Directive 2002/95/EC; lead-free terminations and halogen-free molding compound. |
Applications
| Induction Motor Speed Control | Industrial Heating Regulation |
|---|---|
|
Use Scenario: Variable-speed control of single-phase induction motors in HVAC blowers and pump drives. IC Role / Device Role / Timing Role: Main AC power switch executing phase-angle control via gate-triggered conduction windows. Use Value: Enables precise torque/speed regulation without snubber networks, reducing component count and failure points in sealed enclosures. |
Use Scenario: Proportional power delivery to resistive heating elements in commercial ovens and plastic extruders. IC Role / Device Role / Timing Role: High-reliability ON/OFF switching element synchronized to zero-crossing detection for EMI reduction. Use Value: Delivers 10 A RMS at 800 V blocking with 2.4 °C/W thermal resistance, supporting continuous 2.4 kW operation at ambient ≤ 50 °C. |
| Light Dimmer Modules | Static Relay Replacement |
|
Use Scenario: Leading-edge dimming circuits for incandescent and halogen lamps in residential and hospitality lighting. IC Role / Device Role / Timing Role: Bidirectional AC switch triggered by phase-delayed gate pulses to adjust RMS output voltage. Use Value: 1000 V/µs dV/dt immunity prevents misfiring during rapid lamp filament cooldown transients. |
Use Scenario: Solid-state replacement for electromechanical relays in PLC output modules and building automation panels. IC Role / Device Role / Timing Role: Isolated load switching device with 2500 VRMS tab insulation meeting IEC 61810 relay safety standards. Use Value: UL1557 certification and reinforced insulation eliminate need for additional creepage/clearance barriers in DIN-rail mounted systems. |
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 |
|---|---|---|---|
| BTA10-800BWRG | Non-insulated TO-220AB; tab electrically connected to MT2; Rth(j-c) = 1.5 °C/W | Requires external isolation barrier for safety-critical mounting; better thermal performance in non-isolated chassis | Select when heatsink is grounded and isolation is handled at system level (e.g., PCB creepage, enclosure design) |
| T1050-8G | D²PAK surface-mount package; 10 A/800 V; 50 mA IGT; same Snubberless™ 3Q specs; Rth(j-c) = 1.5 °C/W | Enables automated assembly and higher board density; no through-hole mounting or tab insulation concerns | Select for space-constrained, reflow-soldered designs where thermal interface to copper plane replaces mechanical heatsink |
Compared with BTB10-800BWRG, BTA10-800BWRG offers lower thermal resistance but requires system-level isolation, while T1050-8G enables SMT production and eliminates mechanical mounting complexity at the cost of reduced creepage distance.
Availability
BTB10-800BWRG is available at Aetrix Electronics and suitable for industrial heating regulation, induction motor speed control, and static relay replacement requiring stable component supply across long-lifecycle embedded programs.
Supply support for BTB10-800BWRG 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 sensing solutions for industrial, automotive, and consumer markets.
BTB10-800BWRG belongs to ST's Snubberless™ triac product line, engineered specifically for reliable, snubber-free AC switching in inductive and resistive loads across mains-powered industrial controls and home appliances.
FAQ
What is the maximum allowable case temperature for continuous operation?
The BTB10-800BWRG is rated for continuous operation at Tc ≤ 95 °C, as specified in Table 1 of DS3165 Rev 9. Exceeding this limit risks thermal runaway due to positive temperature coefficient of on-state voltage. Derating curves in Figure 3 confirm 10 A RMS is sustainable only up to 95 °C case temperature in insulated TO-220AB configuration.
Does the insulated tab require electrical connection to circuit ground?
No - the insulated tab is internally connected to MT2 and must be treated as a live terminal carrying full load current. It is rated for 2500 VRMS isolation from MT1 and gate, but must not be tied to ground unless MT2 is referenced to ground in the application circuit. Mounting to a grounded heatsink is permitted only if the insulating pad remains intact and undamaged.
Can BTB10-800BWRG replace BTA10-800BWRG in existing designs?
Yes, but with critical layout changes: BTB10-800BWRG's insulated tab allows direct mounting to grounded heatsinks, whereas BTA10-800BWRG's conductive tab requires isolation hardware. Thermal performance differs (Rth(j-c) = 2.4 vs. 1.5 °C/W), so heatsink sizing must be revalidated. Gate drive and electrical specs are identical.
What is the minimum gate trigger pulse width required for reliable turn-on?
A minimum gate pulse width of 20 µs is required to ensure latching, based on IGT test condition timing in Table 3. Shorter pulses risk incomplete turn-on, especially at low junction temperatures or high dV/dt stress. ST recommends ≥50 µs pulses for robust operation across temperature and line-voltage extremes.
BTB10-800BWRG 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
BTB10-800BWRG FAQ
1.How can I place an order for BTB10-800BWRG through Aetrix?
Please submit a Request for Quotation (RFQ) for BTB10-800BWRG 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 BTB10-800BWRG reliable?
The price and inventory of BTB10-800BWRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTB10-800BWRG is usually 5 days.
3.What payment methods are accepted for BTB10-800BWRG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTB10-800BWRG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTB10-800BWRG?
BTB10-800BWRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTB10-800BWRG 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 BTB10-800BWRG?
For technical support, including BTB10-800BWRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTB10-800BWRG requirements.
6.How does Aetrix verify that BTB10-800BWRG is sourced from the original manufacturer or authorized distributors?
All BTB10-800BWRG 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 BTB10-800BWRG meets industry standards.
7.What is the process for return or replacement of BTB10-800BWRG?
All BTB10-800BWRG units undergo pre-shipment inspection (PSI). If there is an issue with BTB10-800BWRG, 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 BTB10-800BWRG part is unused and in its original packaging.
Return procedure for BTB10-800BWRG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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