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STMicroelectronics T835-600G-TR
- Part No.:
- T835-600G-TR
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
T835-600G-TR.pdf
- Description:
- TRIAC ALTERNISTOR 600V 8A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:16,582
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Product details
Overview
T835-600G-TR from STMicroelectronics is a snubberless, logic-level 3-quadrant triac rated for 8 A RMS on-state current and 600 V repetitive peak off-state voltage (VDRM/VRRM), with 35 mA maximum gate trigger current (IGT). It uses a D²PAK (TO-263) surface-mount package and is designed for phase-controlled AC switching in inductive load applications such as motor speed controllers and heating regulation circuits.
For engineers reviewing the T835-600G-TR datasheet, T835-600G-TR pinout, T835-600G-TR application, or T835-600G-TR equivalent, key selection criteria include commutation robustness under inductive loads, gate drive compatibility with microcontrollers, thermal resistance (Rth(j-c) = 1.6 °C/W), and snubberless operation at 600 V.
Technical Context
This triac operates in three quadrants (I, II, III) and features high commutation performance-enabling reliable turn-off without external snubbers in inductive circuits. Its 35 mA IGT and 1.2 V VGT allow direct interfacing with low-power MCU GPIOs without buffer stages.
It delivers 50 A/µs critical rate of rise of on-state current (dl/dt) and withstands 400 V/µs transient overvoltage (dV/dt) at 125 °C junction temperature, supporting stable operation in noisy industrial AC environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 8 A - Sustains continuous AC load current up to 8 A RMS at Tc = 110 °C, suitable for medium-power motor and heater control. |
| VDRM / VRRM | 600 V - Blocks 600 V peak AC line voltage, compatible with 230 VAC mains with safety margin. |
| IGT (max) | 35 mA - Gate trigger current threshold enabling direct drive from 3.3 V/5 V microcontrollers with minimal external circuitry. |
| dV/dt (min) | 400 V/µs - High transient immunity prevents false triggering during voltage spikes in inductive switching. |
| Rth(j-c) | 1.6 °C/W - Low junction-to-case thermal resistance enables efficient heatsinking in compact D²PAK layouts. |
| VTM (max) | 1.55 V - On-state voltage drop at 11 A pulse ensures low conduction loss and thermal stress at rated current. |
| (dl/dt)c (min) | 3.5 A/ms - Critical rate of decrease of main current supports reliable commutation in inductive loads without snubber networks. |
Pinout & Package
D²PAK (TO-263) surface-mount package with isolated tab (non-insulated version), 3-terminal configuration, and copper pad optimized for thermal dissipation on FR4 PCBs with ≥1 cm² copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Main terminal 1 (MT1) | Reference terminal for gate triggering; connected to neutral or low-side AC path in standard phase-control topologies. |
| A2 | Main terminal 2 (MT2) | High-side AC load connection; carries full RMS current and must be routed with adequate creepage/clearance for 600 V isolation. |
| G | Gate | Control input referenced to A1; accepts 35 mA max trigger pulse to initiate conduction in quadrants I, II, and III. |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless operation | Validated for inductive loads up to 600 V without external RC snubbers, reducing BOM count and board space. |
| Logic-level gate sensitivity | 35 mA IGT max enables direct interface with 3.3 V/5 V MCUs-no level-shifting or driver IC required. |
| High commutation robustness | (dl/dt)c ≥ 3.5 A/ms at 125 °C ensures reliable turn-off under worst-case inductive current decay. |
| D²PAK thermal performance | Rth(j-c) = 1.6 °C/W allows >7 W power dissipation with modest heatsinking, supporting compact industrial designs. |
| Three-quadrant operation | Triggers only in quadrants I, II, and III-eliminates false triggering from quadrant IV noise while retaining AC bidirectional control. |
Applications
| Motor Speed Control | Heating Regulation |
|---|---|
|
Use Scenario: Variable-speed control of single-phase induction motors in HVAC blowers and appliance fans. IC Role / Device Role / Timing Role: Phase-angle controlled AC switch regulating RMS voltage applied to motor windings. Use Value: Enables smooth speed ramping and energy-efficient operation without mechanical gearboxes or VFD complexity. |
Use Scenario: Proportional power delivery to resistive heating elements in industrial ovens and soldering stations. IC Role / Device Role / Timing Role: Zero-crossing or phase-controlled AC power switch modulating average heat output. Use Value: Achieves ±1% temperature stability using simple microcontroller timing-no analog feedback loop needed. |
| Light Dimming | Static Relay Replacement |
|
Use Scenario: Leading-edge dimming of incandescent and halogen lamps in commercial lighting systems. IC Role / Device Role / Timing Role: Bidirectional AC switch triggered at adjustable phase angle to reduce lamp RMS voltage. Use Value: Delivers flicker-free dimming down to 5% brightness with <10 µs timing jitter across temperature range. |
Use Scenario: Solid-state replacement for electromechanical relays in PLC output modules and building automation panels. IC Role / Device Role / Timing Role: Fail-safe ON/OFF AC power switch with galvanic isolation via optocoupler-driven gate. Use Value: Eliminates contact wear, bounce, and EMI-supports >1 million cycles versus <100k for mechanical relays. |
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 |
|---|---|---|---|
| T835-600B-TR | DPAK package (Rth(j-c) = 2.5 °C/W), lower thermal capability than D²PAK; same electrical specs. | Better suited for low-power, space-constrained PCBs where heatsinking is limited. | Select when board area is constrained and power dissipation remains ≤4 W. |
| BTA08-600CW | TO-220AB insulated package, 35 mA IGT, but 4-quadrant operation and higher Rth(j-c) = 2.5 °C/W. | Requires insulation clearance for high-voltage isolation; less immune to quadrant IV noise. | Prefer when mounting to metal chassis or safety-critical isolation is mandatory. |
Compared with T835-600G-TR, the DPAK variant trades thermal performance for footprint size, while the TO-220AB insulated alternative adds mechanical mounting flexibility and reinforced isolation-but at the cost of higher thermal resistance and larger board real estate.
Availability
T835-600G-TR is available at Aetrix Electronics and suitable for motor speed control, heating regulation, light dimming, and static relay replacement requiring stable component supply across industrial OEM production runs.
Supply support for T835-600G-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, specializing in power, analog, MEMS, and microcontroller technologies for industrial and automotive markets.
The T8 series belongs to ST's high-reliability snubberless triac product line, engineered specifically for robust AC power control in inductive and resistive loads without external protection components.
FAQ
What is the maximum junction temperature for continuous operation?
The T835-600G-TR has an operating junction temperature range of –40 °C to +125 °C. Continuous operation at 125 °C requires maintaining case temperature ≤110 °C per absolute maximum ratings, achievable with proper PCB copper area (≥1 cm²) and optional heatsinking.
Does this triac require a snubber circuit for inductive loads?
No. The T835-600G-TR is a certified snubberless triac-its high commutation performance (minimum (dl/dt)c = 3.5 A/ms at 125 °C) ensures reliable turn-off in inductive loads like motors and transformers without external RC snubbers.
Can it be driven directly by a 3.3 V microcontroller GPIO?
Yes. With a maximum gate trigger current (IGT) of 35 mA and gate trigger voltage (VGT) ≤1.2 V, the T835-600G-TR interfaces directly with 3.3 V or 5 V MCUs using a series resistor (e.g., 100 Ω for 3.3 V) to limit peak gate current to <4 A.
What is the thermal resistance from junction to ambient in typical layout?
In a standard FR4 PCB with 1 cm² copper area under the D²PAK tab, Rth(j-a) is approximately 45 °C/W (typical). This value scales inversely with copper area-doubling copper area reduces Rth(j-a) by ~30%, per Figure 12 in DS2114.
T835-600G-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- Snubberless™
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Triac Type:
- Alternistor - Snubberless
- 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):
- 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
T835-600G-TR FAQ
1.How can I place an order for T835-600G-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for T835-600G-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 T835-600G-TR reliable?
The price and inventory of T835-600G-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T835-600G-TR is usually 5 days.
3.What payment methods are accepted for T835-600G-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T835-600G-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T835-600G-TR?
T835-600G-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T835-600G-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 T835-600G-TR?
For technical support, including T835-600G-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T835-600G-TR requirements.
6.How does Aetrix verify that T835-600G-TR is sourced from the original manufacturer or authorized distributors?
All T835-600G-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 T835-600G-TR meets industry standards.
7.What is the process for return or replacement of T835-600G-TR?
All T835-600G-TR units undergo pre-shipment inspection (PSI). If there is an issue with T835-600G-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 T835-600G-TR part is unused and in its original packaging.
Return procedure for T835-600G-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T835-600G-TR 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
Littelfuse Inc.
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2N6075BG
Littelfuse Inc.
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BTA08-600CWRG
STMicroelectronics
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