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STMicroelectronics BTA08-600CRG
- Part No.:
- BTA08-600CRG
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-220-3
- Datasheet:
-
BTA08-600CRG.pdf
- Description:
- TRIAC 600V 8A TO220
- Quantity:
- Payment:
- Shipping:
Inventory:675
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Product details
Overview
BTA08-600CRG from STMicroelectronics is a snubberless, standard-sensitivity (35 mA IGT), 8 A RMS, 600 V repetitive peak off-state voltage triac in insulated TO-220AB package. It operates in quadrants I, II, and III, supports phase control and zero-crossing switching, and is rated for 2500 VRMS voltage-isolated tab per UL E81734. It is used in motor speed controllers and heating regulation circuits with inductive loads.
For engineers reviewing the BTA08-600CRG datasheet, BTA08-600CRG pinout, BTA08-600CRG application, or BTA08-600CRG equivalent, key selection criteria include commutation robustness (dV/dt = 400 V/µs min), gate trigger current tolerance (IGT ≤ 35 mA), junction-to-case thermal resistance (Rth(j-c) = 2.5 °C/W), and insulation compliance for safety-critical AC mains interfaces.
Technical Context
This triac uses a three-quadrant structure optimized for snubberless operation on inductive loads, with guaranteed commutation performance up to 400 V/µs dV/dt at Tj = 125 °C. Its gate trigger threshold (VGT ≤ 1.3 V) and latching current (IL ≤ 25 mA) enable direct drive from microcontroller GPIOs without external amplification.
The device features a ceramic-insulated tab rated at 2500 VRMS (UL E81734), enabling safe mounting on grounded heatsinks in Class I appliances. Thermal design is supported by Rth(j-c) = 2.5 °C/W and IT(RMS) derating curves showing 8 A capability at Tc = 100 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 8 A - Sustains full-sine AC load current up to 8 A at case temperature ≤ 100 °C |
| VDRM / VRRM | 600 V - Blocks 600 V repetitive peak off-state voltage in both directions |
| IGT (max) | 35 mA - Maximum gate trigger current required in quadrants I/II/III; enables MCU-level drive |
| dV/dt (min) | 400 V/µs - Minimum critical rate of rise of off-state voltage without false triggering at Tj = 125 °C |
| Rth(j-c) | 2.5 °C/W - Junction-to-case thermal resistance; defines heatsink sizing for 8 A continuous operation |
| VTM (max) | 1.55 V - Maximum on-state voltage drop at 11 A pulse; determines conduction loss at peak load |
| IDRM / IRRM | 1 mA @ 125 °C - Max leakage current under blocking conditions; ensures low standby power in static relays |
Pinout & Package
Package: Insulated TO-220AB (UL-rated 2500 VRMS tab isolation, ECOPACK2 compliant, torque spec: 0.55 N·m).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Main Terminal 1 (Anode 1) | Reference terminal for gate trigger polarity; connected to load return or neutral in AC phase control |
| A2 | Main Terminal 2 (Anode 2) | High-side AC line connection; carries full load current and withstands 600 V blocking |
| G | Gate | Control input requiring ≥5 mA pulse (typ.) to initiate conduction; referenced to A1 in quadrant I/II/III |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless commutation | Guaranteed dV/dt immunity ≥ 400 V/µs at 125 °C enables elimination of RC snubbers in motor control |
| UL-certified isolation | 2500 VRMS insulated tab (file E81734) allows direct mounting on grounded metal chassis without creepage barriers |
| Logic-compatible gate | IGT ≤ 35 mA and VGT ≤ 1.3 V permit direct interface with 3.3 V/5 V microcontrollers without buffer stages |
| Thermal robustness | Rth(j-c) = 2.5 °C/W and 8 A RMS rating at Tc = 100 °C support compact heatsink designs in space-constrained enclosures |
| ECOPACK2 compliance | Halogen-free epoxy, lead-free plating, and RoHS/REACH conformity meet global environmental manufacturing requirements |
Applications
| Motor Speed Control | Heating Regulation |
|---|---|
|
Use Scenario: Variable-speed control of single-phase induction motors in fans, pumps, and compressors. IC Role / Device Role / Timing Role: AC mains switching element implementing phase-angle control to adjust RMS voltage delivered to motor windings. Use Value: Snubberless dV/dt rating (400 V/µs) prevents false triggering during inductive flyback, eliminating need for external snubber networks. |
Use Scenario: Precise temperature maintenance in electric ovens, water heaters, and industrial process heaters. IC Role / Device Role / Timing Role: ON/OFF or phase-controlled switch regulating power to resistive heating elements from 120/230 V AC mains. Use Value: 8 A RMS current handling and 2500 VRMS isolated tab ensure safe, long-life operation in high-reliability thermal systems. |
| Static Relay Replacement | Light Dimmer Circuit |
|
Use Scenario: Solid-state replacement for electromechanical relays in PLC output modules and building automation panels. IC Role / Device Role / Timing Role: Zero-voltage turn-on switch providing contactless, bounce-free AC load switching with galvanic isolation. Use Value: UL-certified 2500 VRMS tab isolation eliminates need for additional barrier materials when mounted on shared metal backplanes. |
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 triggered synchronously with zero-crossing detection to modulate lamp brightness. Use Value: Low IGT (≤35 mA) and stable VGT (≤1.3 V) ensure consistent firing angle across temperature and supply voltage variations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triac switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTA08-600SWRG | Lower IGT (10 mA max), same VDRM/Rth(j-c)/isolation | Better suited for ultra-low-power gate drivers (e.g., battery-powered controllers) | Select when gate drive current budget is <10 mA; otherwise BTA08-600CRG offers wider noise margin |
| T835-600B | DPAK package (Rth(j-c) = 1.6 °C/W), 35 mA IGT, same 600 V/8 A rating | SMT assembly compatible; lower profile but requires PCB copper area for thermal management | Select for automated assembly or space-constrained PCBs; BTA08-600CRG preferred for through-hole, high-reliability, or heatsink-mounted use |
Compared with BTA08-600SWRG, the BTA08-600CRG provides higher gate noise immunity due to its 35 mA IGT ceiling, while versus T835-600B it trades surface-mount convenience for superior mechanical ruggedness and simplified thermal mounting via insulated TO-220AB.
Availability
BTA08-600CRG is available at Aetrix Electronics and suitable for motor speed controllers, heating regulation systems, static relay replacements, and light dimmers requiring stable component supply across industrial OEM production cycles.
Supply support for BTA08-600CRG 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 products for industrial, automotive, and consumer markets.
The BTA08-600CRG belongs to ST's high-reliability snubberless triac product line, engineered specifically for robust AC mains switching in inductive-load applications where safety isolation and commutation stability are critical.
FAQ
What is the maximum allowable junction temperature for continuous operation?
The BTA08-600CRG has an operating junction temperature range of –40 °C to +125 °C. Continuous operation at Tj = 125 °C is permitted only when case temperature is maintained at or below 100 °C, as specified in Table 1's absolute maximum ratings and confirmed by derating curves in Figure 2.
Can this triac be used with 230 V AC mains without a snubber circuit?
Yes - the BTA08-600CRG is a snubberless triac with a minimum dV/dt rating of 400 V/µs at 125 °C, which exceeds typical 230 V AC transient requirements. Its high commutation performance eliminates the need for external RC snubbers in properly designed motor and heater control circuits.
Is the insulated tab rated for safety-critical isolation in end equipment?
Yes - the TO-220AB insulated package carries UL recognition file E81734, certifying 2500 VRMS isolation between the tab and internal die. This meets reinforced insulation requirements for Class I appliances and enables direct mounting on grounded metal enclosures without additional creepage/clearance barriers.
What is the recommended gate resistor value for microcontroller drive?
For a 5 V MCU GPIO driving the BTA08-600CRG, a 150 Ω series resistor limits peak gate current to ~27 mA (within the 35 mA IGT max), provides adequate dv/dt noise filtering, and avoids exceeding the 4 A IGM absolute maximum rating during transient events.
BTA08-600CRG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Triac Type:
- Standard
- Voltage - Off State:
- 600 V
- Current - On State (It (RMS)) (Max):
- 8 A
- Voltage - Gate Trigger (Vgt) (Max):
- 1.3 V
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 80A, 84A
- 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
BTA08-600CRG FAQ
1.How can I place an order for BTA08-600CRG through Aetrix?
Please submit a Request for Quotation (RFQ) for BTA08-600CRG 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 BTA08-600CRG reliable?
The price and inventory of BTA08-600CRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTA08-600CRG is usually 5 days.
3.What payment methods are accepted for BTA08-600CRG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTA08-600CRG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTA08-600CRG?
BTA08-600CRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTA08-600CRG 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 BTA08-600CRG?
For technical support, including BTA08-600CRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTA08-600CRG requirements.
6.How does Aetrix verify that BTA08-600CRG is sourced from the original manufacturer or authorized distributors?
All BTA08-600CRG 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 BTA08-600CRG meets industry standards.
7.What is the process for return or replacement of BTA08-600CRG?
All BTA08-600CRG units undergo pre-shipment inspection (PSI). If there is an issue with BTA08-600CRG, 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 BTA08-600CRG part is unused and in its original packaging.
Return procedure for BTA08-600CRG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BTA08-600CRG Tags
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Z0103NN5AA4
STMicroelectronics
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Z0107MNT1G
Littelfuse Inc.
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Z0103MNT1G
Littelfuse Inc.
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2N6073BG
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Littelfuse Inc.
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BTA08-600CWRG
STMicroelectronics
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