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STMicroelectronics BTA16-800BWRG
- Part No.:
- BTA16-800BWRG
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-220-3
- Datasheet:
-
BTA16-800BWRG.pdf
- Description:
- TRIAC ALTERNISTOR 800V 16A TO220
- Quantity:
- Payment:
- Shipping:
Inventory:5,057
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Product details
Overview
BTA16-800BWRG from STMicroelectronics is a 16 A, 800 V RMS insulated triac in TO-220AB Insulated package, designed for AC mains switching in phase-angle and on/off control. It features Snubberless™ operation (50 mA gate trigger), 2500 VRMS isolated tab, 200 V/µs dV/dt (standard mode), and UL1557 certification (file E81734). It is used in appliance motor speed controllers driving inductive loads without external snubbers.
For engineers reviewing the BTA16-800BWRG datasheet, BTA16-800BWRG pinout, BTA16-800BWRG application, or BTA16-800BWRG equivalent, key selection criteria include insulated mounting capability, high commutation performance on inductive loads, gate sensitivity (50 mA IGT), thermal resistance (Rth(j-c) = 2.1 °C/W), and compliance with UL1557 and RoHS.
Technical Context
This triac operates in all four quadrants (4Q) but is optimized for robust 3-quadrant Snubberless™ switching under high dI/dt and dV/dt stress. Its internal ceramic insulation enables direct heatsink mounting at 2500 VRMS isolation, eliminating need for insulating washers in safety-critical AC power stages.
The device delivers 16 A RMS current at Tc = 86 °C with 160 A non-repetitive surge rating (50 Hz), and maintains stable latching (IL ≤ 60 mA) and holding (IH ≤ 50 mA) across –40 to +125 °C junction temperature range. Its 50 A/µs critical dl/dt ensures reliable turn-off during fast current decay in motor and transformer loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 16 A RMS - supports continuous mains switching up to 3.5 kW resistive or 2.2 kW inductive load at 230 VAC |
| VDRM / VRRM | 800 V - withstands peak line voltage (≈565 V) with 42% margin for 230 VAC systems with transients |
| IGT (Snubberless™) | 50 mA max - compatible with standard microcontroller GPIO or optocoupler drivers without amplification |
| Rth(j-c) | 2.1 °C/W - enables 16 A operation with ≤100 °C case rise using modest heatsinking (e.g., 10 cm² aluminum) |
| dV/dt (min) | 200 V/µs - prevents false triggering during fast AC voltage transients without snubber network |
| Isolation Rating | 2500 VRMS - meets reinforced insulation requirements for Class I appliances per IEC 60335 |
| UL Certification | UL1557 file E81734 - validated for use in certified end equipment without additional system-level isolation testing |
Pinout & Package
TO-220AB Insulated package with electrically isolated metal tab (ceramic pad), 3-pin through-hole configuration. Mounting torque: 0.55 N·m (recommended), 0.70 N·m (max).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main Terminal 1 | Reference terminal for gate drive; connected to neutral or low-side AC path in most phase-control topologies |
| A2 (MT2) | Main Terminal 2 | High-current AC output terminal; carries full load current and must be routed with creepage/clearance compliance |
| G | Gate | Trigger input referenced to A1; requires ≥10 mA pulse (≥1.3 V) for reliable turn-on in all quadrants |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless™ commutation | Enables direct drive of inductive loads (e.g., universal motors, solenoids) without RC snubber, reducing BOM count and board space |
| Insulated tab (2500 VRMS) | Allows direct mechanical mounting to grounded heatsink without insulating hardware, simplifying thermal design and improving reliability |
| UL1557 certification | Validates isolation integrity for end-product safety approvals-eliminates need for system-level dielectric testing of triac mounting |
| Low Rth(j-c) = 2.1 °C/W | Supports full 16 A RMS current with <100 °C junction rise using compact heatsinks, enabling smaller enclosure designs |
| High dI/dt capability (50 A/µs) | Ensures clean turn-off during rapid current zero-crossing in motor windings, preventing commutation failure and device latch-up |
Applications
| Induction Motor Speed Control | Static Relay for HVAC Actuators |
|---|---|
|
Use Scenario: Variable-speed control of single-phase induction motors in washing machines and fans using phase-angle firing. IC Role / Device Role / Timing Role: Main AC power switch triggered synchronously to AC zero-crossing; handles bidirectional 16 A RMS load current. Use Value: Snubberless™ operation eliminates snubber losses and component count; insulated tab enables direct heatsink mounting in compact chassis. |
Use Scenario: Solid-state replacement for electromechanical relays controlling 230 VAC dampers or valves in residential HVAC systems. IC Role / Device Role / Timing Role: On/off AC switch with galvanic isolation; activated by low-power MCU GPIO via optocoupler. Use Value: 2500 VRMS isolation meets IEC 61000-4-5 surge immunity requirements; UL1557 certification accelerates end-equipment safety approval. |
| Light Dimmer for LED-Compatible Mains Lamps | Heating Element Regulation in Smart Ovens |
|
Use Scenario: Leading-edge dimmer circuit powering legacy incandescent and modern trailing-edge-compatible LED lamps. IC Role / Device Role / Timing Role: Phase-controlled AC switch synchronized to zero-crossing; tolerates high dv/dt from lamp filament inrush and LED driver noise. Use Value: 200 V/µs dV/dt rating prevents false triggering from EMI; 50 mA IGT ensures compatibility with standard TRIAC driver ICs (e.g., MOC302x). |
Use Scenario: Closed-loop temperature regulation of resistive heating elements (1–3 kW) in programmable kitchen ovens. IC Role / Device Role / Timing Role: High-reliability on/off power switch controlled by PID loop; cycles at 0.1–2 Hz to maintain ±2 °C accuracy. Use Value: 160 A surge rating absorbs repeated inrush currents from cold elements; TO-220AB Ins. package ensures long-term creepage stability under thermal cycling. |
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 |
|---|---|---|---|
| BTB16-800BW | Non-insulated TO-220AB package; identical electrical specs (16 A, 800 V, 50 mA IGT, Snubberless™) | Requires insulating kit (mica washer + nylon screw) for grounded heatsink mounting; higher assembly cost and thermal resistance | Select when mechanical isolation is already provided externally and cost-per-unit is prioritized over assembly simplicity |
| T1650-800G | D²PAK surface-mount package; same 16 A/800 V rating, 50 mA IGT, Snubberless™, but Rth(j-c) = 1.2 °C/W and no isolation | Suitable only for PCB-integrated heatsinking; not rated for 2500 VRMS isolation; requires careful layout for creepage | Select for high-density SMT designs where board-level thermal management is feasible and safety isolation is handled elsewhere |
Compared with BTB16-800BW and T1650-800G, BTA16-800BWRG uniquely combines certified 2500 VRMS isolation, through-hole robustness, and Snubberless™ inductive-load capability-making it optimal for safety-critical, thermally constrained, and maintenance-sensitive appliance applications.
Availability
BTA16-800BWRG is available at Aetrix Electronics and suitable for static relays, light dimmers, and appliance motor speed controllers requiring stable component supply, long-lifecycle support, and certified isolation performance.
Supply support for BTA16-800BWRG 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, power, MCU, and sensor solutions for industrial, automotive, and consumer markets.
The BTA series belongs to ST's high-reliability AC power switching portfolio, engineered specifically for mains-connected appliances demanding UL-certified isolation, snubberless inductive load handling, and long-term thermal stability under cyclic stress.
FAQ
What is the maximum recommended case temperature for continuous 16 A RMS operation?
The datasheet specifies IT(RMS) = 16 A at Tc = 86 °C for the TO-220AB Insulated package. Exceeding this temperature reduces current rating linearly; at Tc = 100 °C, derated IT(RMS) drops to ≈13.5 A. Thermal design must ensure heatsink interface resistance keeps case below 86 °C under worst-case ambient and airflow conditions.
Can BTA16-800BWRG replace a non-insulated triac like BTB16-800BW without hardware changes?
No-BTA16-800BWRG has an insulated tab requiring different mounting: no insulating hardware is needed, but the heatsink must be electrically grounded and thermally coupled directly to the tab. Mechanical footprint matches BTB16, but thermal and safety validation must be repeated due to altered creepage paths and grounding scheme.
Does the "W" suffix guarantee Snubberless™ operation in all load types?
Yes-the "W" (e.g., BW) denotes Snubberless™ design validated for high-commutation inductive loads (e.g., motors, transformers) per IEC 61000-4-4/5. It guarantees minimum (dV/dt)c = 5 V/µs and (dI/dt)c = 7 A/ms at 125 °C, enabling reliable turn-off without external snubbers-but proper gate drive timing and voltage margins remain essential.
Is the 2500 VRMS isolation rating tested per unit or qualified per lot?
The 2500 VRMS isolation is a design qualification verified per UL1557 (file E81734) through type testing of representative samples across process lots and temperature extremes. ST performs 100% hipot screening at 1500 VRMS on every unit, ensuring production units meet minimum isolation integrity required for end-equipment certification.
BTA16-800BWRG 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):
- 16 A
- Voltage - Gate Trigger (Vgt) (Max):
- 1.3 V
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 160A, 168A
- 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
BTA16-800BWRG FAQ
1.How can I place an order for BTA16-800BWRG through Aetrix?
Please submit a Request for Quotation (RFQ) for BTA16-800BWRG 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 BTA16-800BWRG reliable?
The price and inventory of BTA16-800BWRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTA16-800BWRG is usually 5 days.
3.What payment methods are accepted for BTA16-800BWRG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTA16-800BWRG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTA16-800BWRG?
BTA16-800BWRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTA16-800BWRG 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 BTA16-800BWRG?
For technical support, including BTA16-800BWRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTA16-800BWRG requirements.
6.How does Aetrix verify that BTA16-800BWRG is sourced from the original manufacturer or authorized distributors?
All BTA16-800BWRG 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 BTA16-800BWRG meets industry standards.
7.What is the process for return or replacement of BTA16-800BWRG?
All BTA16-800BWRG units undergo pre-shipment inspection (PSI). If there is an issue with BTA16-800BWRG, 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 BTA16-800BWRG part is unused and in its original packaging.
Return procedure for BTA16-800BWRG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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