STMicroelectronics T810-600B-TR
- Part No.:
- T810-600B-TR
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
T810-600B-TR.pdf
- Description:
- TRIAC SENS GATE 600V 8A DPAK
- Quantity:
- Payment:

- Shipping:

Inventory:25,744
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Product details
Overview
T810-600B-TR from STMicroelectronics is a snubberless, logic-level 8 A triac in DPAK package, rated for 600 V repetitive peak off-state voltage (VDRM/VRRM), with guaranteed 10 mA maximum gate trigger current (IGT) and 1.55 V max on-state voltage (VTM) at 11 A. It operates across -40 °C to +125 °C junction temperature and delivers stable AC switching in phase-controlled motor speed controllers and static relays driving inductive loads.
For engineers reviewing the T810-600B-TR datasheet, T810-600B-TR pinout, T810-600B-TR application, or T810-600B-TR equivalent, this device is selected for high-commutation inductive load switching where low IGT, snubberless operation, and DPAK thermal performance (Rth(j-c) = 1.6 °C/W) are critical design requirements.
Technical Context
This triac belongs to ST's Snubberless Logic-Level (SLL) 3-quadrant family, optimized for direct microcontroller interface without external gate amplification. Its dV/dt immunity reaches 400 V/µs at 125 °C and commutation robustness is validated by (dl/dt)c ≥ 5.4 A/ms under high (dV/dt)c conditions - enabling reliable turn-off in inductive circuits without snubbers.
It features a ceramic-insulated die attach in DPAK, supporting safe isolation in AC mains-connected systems. The device exhibits low dynamic resistance (RD = 50 mΩ) and tight VGT ≤ 1.2 V, ensuring consistent triggering across temperature and load variations in heating regulation and light dimming applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 8 A RMS on-state current - supports continuous 1 kW resistive or 750 W inductive load at Tc = 110 °C |
| VDRM / VRRM | 600 V - withstands full-cycle AC line surges up to 600 V peak without conduction |
| IGT (max) | 10 mA - compatible with 3.3 V/5 V MCU GPIOs without buffer stage |
| VTM | 1.55 V @ 11 A - low conduction loss enables <1.7 W power dissipation at full RMS current |
| dV/dt (min) | 400 V/µs @ Tj = 125 °C - eliminates need for RC snubber in motor starting circuits |
| Rth(j-c) | 1.6 °C/W - enables efficient heatsinking via PCB copper pad (≥1 cm²) for compact designs |
| ITSM (50 Hz) | 80 A non-repetitive surge - handles 10× overload for motor startup transients |
Pinout & Package
DPAK (TO-252) surface-mount package with insulated tab (no internal isolation barrier), 3-pin configuration: A1 (MT1), A2 (MT2), G (Gate). Thermal pad on underside requires soldered copper area for junction-to-case heat transfer.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main Terminal 1 | AC line return path; referenced to gate for triggering in Quadrants I, II, III |
| A2 (MT2) | Main Terminal 2 | AC line input; polarity defines quadrant conduction behavior during gate pulse |
| G | Gate | Low-current control input; triggers bidirectional conduction when IGT ≥ 10 mA applied between G–A1 |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless operation | Validated (dl/dt)c ≥ 5.4 A/ms at 125 °C - eliminates external RC network in fan/motor drives |
| Logic-level gate drive | IGT ≤ 10 mA @ VD = 12 V - interfaces directly with STM32, ESP32, or PIC GPIOs |
| High dV/dt immunity | 400 V/µs @ Tj = 125 °C - prevents false triggering in noisy industrial environments |
| Low on-state resistance | RD = 50 mΩ - reduces conduction losses and thermal stress vs. standard triacs |
| Halogen-free ECOPACK2 | Meets UL94 V0 and RoHS - compliant for consumer and industrial safety certifications |
Applications
| Motor Speed Control | Heating Regulation |
|---|---|
|
Use Scenario: Variable-speed control of universal motors in power tools and HVAC blowers using phase-angle firing. IC Role / Device Role / Timing Role: Bidirectional AC switch triggered by zero-crossing synchronized PWM pulses to modulate RMS voltage. Use Value: Enables precise torque/speed tuning with 8 A continuous current handling and no snubber components. |
Use Scenario: Solid-state temperature regulation in electric ovens, coffee makers, and industrial heaters. IC Role / Device Role / Timing Role: ON/OFF switching element controlled by PID output to cycle power to resistive heating elements. Use Value: Delivers 600 V blocking margin for 240 VAC mains and 10 mA IGT simplifies microcontroller interface. |
| Light Dimming | Static Relay Replacement |
|
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 after zero-crossing to adjust conduction angle per half-cycle. Use Value: Low VTM (1.55 V) minimizes self-heating during partial conduction; DPAK allows compact PCB layout. |
Use Scenario: Solid-state replacement of electromechanical relays in PLC I/O modules and building automation panels. IC Role / Device Role / Timing Role: High-reliability AC load switch activated by 3.3 V logic signals without external drivers. Use Value: Snubberless design ensures long-term reliability with inductive solenoid/valve loads; Rth(j-c) = 1.6 °C/W supports fanless operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triac switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTA08-600SW | TO-220AB insulated package; higher Rth(j-c) = 2.5 °C/W; IGT = 10 mA same | Requires mechanical mounting and heatsink; better isolation (2500 VRMS tab) | Select when reinforced insulation or higher surge immunity is required over space-constrained SMT layout |
| T835-600B | DPAK package; higher IGT = 35 mA; same VDRM and IT(RMS); snubberless but not logic-level | Needs gate driver for MCU interface; superior commutation (dl/dt)c = 7 A/ms | Select when driving highly inductive loads (e.g., contactor coils) where gate drive capability exists |
Compared with BTA08-600SW, T810-600B-TR offers superior thermal efficiency in SMT layouts; compared with T835-600B, it provides lower gate drive burden at the cost of slightly reduced commutation margin - making it optimal for MCU-driven, space-limited AC control.
Availability
T810-600B-TR is available at Aetrix Electronics and suitable for motor speed control, heating regulation, light dimming, and static relay replacement requiring stable component supply, tape-and-reel packaging for automated assembly, and long-term lifecycle support.
Supply support for T810-600B-TR 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, mixed-signal, power, and microcontroller solutions for industrial, automotive, and consumer markets.
T810-600B-TR belongs to ST's Snubberless Logic-Level Triac product line, engineered specifically for direct microcontroller-driven AC switching in compact, thermally constrained, inductive-load applications.
FAQ
What is the maximum junction temperature for continuous operation?
The T810-600B-TR has an operating junction temperature range of -40 °C to +125 °C. Continuous operation at Tj = 125 °C is permitted when case temperature (Tc) is maintained at ≤110 °C per absolute maximum ratings, verified by thermal design using Rth(j-c) = 1.6 °C/W and adequate PCB copper area.
Does this triac require a snubber circuit for inductive loads?
No. The T810-600B-TR is a certified snubberless triac with validated commutation performance: (dl/dt)c ≥ 5.4 A/ms at 125 °C and dV/dt immunity of 400 V/µs. It reliably commutates inductive loads such as motors and solenoids without external RC snubbers when properly heatsinked.
Can it be driven directly by a 3.3 V microcontroller GPIO?
Yes. With guaranteed IGT ≤ 10 mA and VGT ≤ 1.2 V, the T810-600B-TR can be triggered directly by standard 3.3 V or 5 V MCU outputs. A series current-limiting resistor (e.g., 330 Ω for 3.3 V) ensures gate current stays within spec while providing noise margin.
What is the thermal resistance from junction to ambient in standard PCB layout?
In a typical FR4 PCB with 1 cm² copper area under the DPAK thermal pad, Rth(j-a) is 70 °C/W (typical). This value assumes 35 µm copper thickness and no additional heatsink; actual performance improves with larger copper areas or forced airflow.
T810-600B-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Triac Type:
- Logic - Sensitive Gate
- 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):
- 10 mA
- Current - Hold (Ih) (Max):
- 15 mA
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
T810-600B-TR FAQ
1.How can I place an order for T810-600B-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for T810-600B-TR 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 T810-600B-TR reliable?
The price and inventory of T810-600B-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T810-600B-TR is usually 5 days.
3.What payment methods are accepted for T810-600B-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T810-600B-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T810-600B-TR?
T810-600B-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T810-600B-TR 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 T810-600B-TR?
For technical support, including T810-600B-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T810-600B-TR requirements.
6.How does Aetrix verify that T810-600B-TR is sourced from the original manufacturer or authorized distributors?
All T810-600B-TR 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 T810-600B-TR meets industry standards.
7.What is the process for return or replacement of T810-600B-TR?
All T810-600B-TR units undergo pre-shipment inspection (PSI). If there is an issue with T810-600B-TR, 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 T810-600B-TR part is unused and in its original packaging.
Return procedure for T810-600B-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T810-600B-TR Tags

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Z0103NN5AA4
STMicroelectronics

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Littelfuse Inc.

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Z0103MNT1G
Littelfuse Inc.
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BTA08-600CWRG
STMicroelectronics

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