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STMicroelectronics T1035-6G
- Part No.:
- T1035-6G
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
T1035-6G.pdf
- Description:
- TRIAC ALTERNISTOR 600V 10A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:6,224
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Product details
Overview
T1035-6G from STMicroelectronics is a 10 A, 600 V Snubberless™ 3-quadrant triac in D²PAK package, designed for robust AC mains switching in inductive loads. It delivers 35 mA max gate trigger current (IGT), 500 V/µs minimum dV/dt at 125 °C, and features insulated tab rated at 2500 VRMS per UL1557 (E81734), enabling direct mounting on heatsinks without isolation hardware in motor control and lighting dimmer applications.
For engineers reviewing the T1035-6G datasheet, T1035-6G pinout, T1035-6G application, or T1035-6G equivalent, key selection criteria include its snubberless commutation capability (5.5 A/ms min. (dI/dt)c), low thermal resistance (Rth(j-c) = 1.5 °C/W), and compatibility with logic-level gate drive in phase-control circuits requiring high reliability under inductive stress.
Technical Context
The T1035-6G operates as a 3-quadrant triac with gate sensitivity limited to quadrants I, II, and III-excluding quadrant IV-enabling improved noise immunity and reduced false triggering in noisy industrial environments. Its internal ceramic insulation provides 2500 VRMS isolation between the tab and MT1/MT2 terminals, satisfying reinforced insulation requirements per UL1557.
It exhibits a threshold on-state voltage (VTO) of ≤0.85 V at 125 °C and dynamic resistance (RD) ≤40 mΩ, ensuring low conduction loss at full 10 A RMS load. The device sustains 100 A non-repetitive surge current (ITSM) at 50 Hz and maintains ≥500 V/µs critical dV/dt at junction temperature up to 125 °C without external snubbers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 10 A - Sustains continuous 10 A RMS AC load current at TC = 105 °C in TO-220AB; derated to 9.2 A in D²PAK at same condition. |
| VDRM / VRRM | 600 V - Blocks 600 V peak off-state voltage in both directions; suitable for 230 VAC mains with safety margin. |
| IGT (max) | 35 mA - Guaranteed gate trigger current ≤35 mA at 25 °C; enables direct drive from microcontroller GPIOs with minimal buffer. |
| dV/dt (min) | 500 V/µs - Minimum rate of rise of off-state voltage at Tj = 125 °C; eliminates need for RC snubber on inductive loads. |
| (dI/dt)c (min) | 5.5 A/ms - Critical rate of decrease of on-state current without commutation failure; supports reliable turn-off in motor windings. |
| Rth(j-c) | 1.5 °C/W - Junction-to-case thermal resistance; allows 6.7 W power dissipation at ΔT = 10 °C, supporting compact heatsink designs. |
| VTO / RD | ≤0.85 V / ≤40 mΩ - Low on-state voltage drop and resistance at 125 °C; reduces conduction loss to <8.5 W at 10 A RMS. |
Pinout & Package
D²PAK (TO-263) surface-mount package with isolated metal tab (pin 3), thermally and electrically insulated via internal ceramic pad. Tab serves as MT2 terminal and provides 2500 VRMS isolation from PCB ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (MT1) | Main Terminal 1 | Anode-side AC line connection; referenced to gate for triggering in quadrants I/II/III. |
| Pin 2 (G) | Gate | Control input for triac turn-on; requires ≤35 mA pulse to trigger conduction between MT1 and MT2. |
| Pin 3 (MT2 / Tab) | Main Terminal 2 / Heatsink Interface | Cathode-side AC line connection and thermally conductive tab; electrically isolated at 2500 VRMS, enabling direct heatsink mounting. |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless™ 3Q operation | Enables reliable commutation on inductive loads (e.g., universal motors) without external RC snubber networks, reducing BOM count and board space. |
| UL1557-certified insulation | Internal ceramic pad ensures 2500 VRMS reinforced isolation (file E81734), eliminating need for insulating washers in safety-critical AC power stages. |
| Low Rth(j-c) = 1.5 °C/W | Permits higher power density: dissipates 6.7 W at 10 °C junction-to-case delta, supporting compact thermal design in space-constrained modules. |
| Logic-compatible gate drive | Max 35 mA IGT at 25 °C allows direct interface with 3.3 V/5 V MCU outputs using only a series resistor (e.g., 150 Ω @ 5 V). |
| High dV/dt immunity | 500 V/µs minimum at 125 °C prevents false triggering from fast transients in industrial AC lines, improving system robustness. |
Applications
| Motor Speed Control | Light Dimming |
|---|---|
|
Use Scenario: Variable-speed control of single-phase induction motors in HVAC blowers and kitchen appliances. IC Role / Device Role / Timing Role: Main AC power switch executing phase-angle control to regulate RMS voltage delivered to motor windings. Use Value: Snubberless™ commutation ensures zero-crossing–independent turn-off reliability under high inductance, eliminating snubber losses and capacitor aging. |
Use Scenario: Leading-edge dimming of incandescent and halogen lamps in residential and commercial lighting systems. IC Role / Device Role / Timing Role: Bidirectional AC switch triggered at programmable phase angles to adjust lamp brightness. Use Value: 500 V/µs dV/dt rating prevents false triggering from lamp filament inrush transients, ensuring stable dimming across full range. |
| Heating Regulation | Static Relay Replacement |
|
Use Scenario: Proportional ON/OFF control of resistive heating elements in ovens, water heaters, and soldering stations. IC Role / Device Role / Timing Role: Solid-state replacement for electromechanical relays, switching 230 VAC/10 A loads at zero-crossing or phase angle. Use Value: 10 A RMS rating and 100 A surge capability support repeated thermal cycling without contact welding or degradation. |
Use Scenario: High-reliability AC output stage in PLC digital output modules and industrial I/O cards. IC Role / Device Role / Timing Role: Isolated power switch interfacing microcontroller logic to 230 VAC field devices (valves, solenoids, indicators). Use Value: UL-certified 2500 VRMS tab isolation enables direct PCB mounting to chassis ground, simplifying safety certification and reducing creepage/clearance overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-quadrant snubberless triac applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTA10-600CWRG | TO-220AB insulated package; 25 mA max IGT; identical VDRM, dV/dt, and (dI/dt)c specs. | Through-hole mounting; requires insulating washer if heatsink grounded; higher Rth(j-c) = 2.4 °C/W. | Select when legacy through-hole assembly or higher gate sensitivity (25 mA vs. 35 mA) is required. |
| T1050-8G | D²PAK package; 600 V → 800 V VDRM; 50 mA max IGT; otherwise identical thermal and commutation specs. | Supports 400 VAC industrial systems or 230 VAC with extended surge margin; slightly higher gate drive requirement. | Select when higher blocking voltage (800 V) is needed for enhanced surge immunity or 400 VAC line compatibility. |
Compared with BTA10-600CWRG, T1035-6G offers superior thermal performance (1.5 vs. 2.4 °C/W) and surface-mount compatibility; versus T1050-8G, it trades 200 V blocking headroom for lower gate drive demand and cost in standard 230 VAC applications.
Availability
T1035-6G is available at Aetrix Electronics and suitable for motor speed control, light dimming, heating regulation, and static relay replacement requiring stable component supply across industrial OEM production cycles.
Supply support for T1035-6G 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, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
T1035-6G belongs to ST's BTA/BTB/T10xx family of snubberless triacs, engineered specifically for high-reliability AC power switching in inductive and resistive loads where isolation, thermal efficiency, and commutation robustness are critical.
FAQ
What is the maximum junction temperature for continuous operation?
The T1035-6G has an operating junction temperature range of –40 °C to +125 °C. Continuous operation must maintain Tj ≤ 125 °C, achievable with proper heatsinking-e.g., at IT(RMS) = 10 A and Rth(j-c) = 1.5 °C/W, case temperature must not exceed 105 °C to stay within limit.
Is the tab electrically connected to any internal terminal?
Yes-the metal tab is internally connected to MT2 (Main Terminal 2). However, it is electrically isolated from MT1 and G by a certified ceramic pad, providing 2500 VRMS reinforcement per UL1557 (file E81734), allowing safe mounting to grounded heatsinks.
Can T1035-6G replace a standard 4-quadrant triac in existing designs?
No-it is a 3-quadrant device, disabling quadrant IV triggering. In circuits relying on QIV turn-on (e.g., certain legacy dimmers), substitution may cause failure to trigger. Verify gate drive polarity and quadrant usage in the original schematic before replacement.
What is the recommended PCB footprint for D²PAK mounting?
Per ST's DS3165 Rev 9, the recommended D²PAK footprint uses a 10.30 mm × 16.90 mm copper pad for the tab (MT2), with 3.70 mm spacing to adjacent traces, 5.08 mm pin pitch, and 1.30 mm wide traces for pins 1 and 2-optimized for thermal conduction and 2500 VRMS creepage clearance.
T1035-6G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- Snubberless™
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tube
- Product Status:
- Active
- Triac Type:
- Alternistor - Snubberless
- Voltage - Off State:
- 600 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):
- 35 mA
- Current - Hold (Ih) (Max):
- 35 mA
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
T1035-6G FAQ
1.How can I place an order for T1035-6G through Aetrix?
Please submit a Request for Quotation (RFQ) for T1035-6G 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 T1035-6G reliable?
The price and inventory of T1035-6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T1035-6G is usually 5 days.
3.What payment methods are accepted for T1035-6G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T1035-6G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T1035-6G?
T1035-6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T1035-6G 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 T1035-6G?
For technical support, including T1035-6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T1035-6G requirements.
6.How does Aetrix verify that T1035-6G is sourced from the original manufacturer or authorized distributors?
All T1035-6G 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 T1035-6G meets industry standards.
7.What is the process for return or replacement of T1035-6G?
All T1035-6G units undergo pre-shipment inspection (PSI). If there is an issue with T1035-6G, 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 T1035-6G part is unused and in its original packaging.
Return procedure for T1035-6G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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