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STMicroelectronics T835H-6G
- Part No.:
- T835H-6G
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
T835H-6G.pdf
- Description:
- TRIAC ALTERNISTOR 600V 8A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:5,968
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Product details
Overview
T835H-6G from STMicroelectronics is a snubberless 8 A, 600 V RMS triac in D²PAK package, rated for 150 °C junction temperature operation, with 35 mA max gate trigger current (IGT), 1000 V/µs dV/dt immunity at 150 °C, and 50 A/µs critical di/dt capability - deployed in universal motor control for vacuum cleaners and washing machine drum drives.
For engineers reviewing the T835H-6G datasheet, T835H-6G pinout, T835H-6G application, or T835H-6G equivalent, this part supports high-density AC switching where thermal robustness, snubberless commutation, and reduced heatsink requirements are critical design constraints.
Technical Context
This triac operates across all three quadrants without external snubbers, enabling simplified AC phase-control circuits in mains-powered motor loads. Its internal ceramic insulation provides 2500 VRMS isolation, and clip-bonding delivers low Rth(j–c) of 1.85 °C/W for sustained 8 A RMS conduction at TC = 133 °C.
The device sustains 80 A non-repetitive surge current (50 Hz, 20 ms) and maintains ≥1000 V/µs off-state dV/dt immunity even at Tj = 150 °C - key for reliable turn-off in inductive universal motor commutation with high voltage transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 8 A - Sustains full-sine AC load current up to 133 °C case temperature without derating. |
| VDRM / VRRM | 600 V - Blocks line voltage peaks (e.g., 230 VAC mains + margin) reliably in both directions. |
| IGT (max) | 35 mA - Low gate drive requirement compatible with standard microcontroller GPIO or optocoupler outputs. |
| dV/dt (min) | 1000 V/µs at Tj = 150 °C - Prevents false triggering during fast voltage transients in motor commutation. |
| (di/dt)c (min) | 11 A/ms at Tj = 150 °C - Ensures clean turn-off under high-current inductive load interruption. |
| Rth(j–c) | 1.85 °C/W - Enables compact thermal design: ~14.8 W power dissipation before reaching 150 °C junction limit. |
| Isolation Voltage | 2500 VRMS - Meets reinforced insulation requirements for Class I appliances per IEC 60335. |
Pinout & Package
D²PAK (TO-263) surface-mount package with isolated tab; thermally optimized clip-bond construction and internal ceramic insulation layer between die and tab.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Main Terminal 1 (Anode 1) | Reference terminal for gate trigger; connected to load return path in standard phase-control topology. |
| A2 | Main Terminal 2 (Anode 2) | High-side AC line connection; carries full load current and defines voltage reference for dV/dt immunity. |
| G | Gate | Controls conduction onset; requires ≥35 mA pulse (12 V, 33 Ω) for guaranteed turn-on in all quadrants. |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless commutation | Eliminates external RC snubber network in universal motor phase-control, reducing BOM count and PCB area. |
| 150 °C junction rating | Enables operation in thermally constrained enclosures (e.g., vacuum cleaner housings) without forced cooling. |
| Low Rth(j–c) = 1.85 °C/W | Reduces required heatsink mass by ~40% vs. conventional TO-220 triacs at same 8 A RMS load. |
| 2500 VRMS isolation | Permits direct mounting on PCB without additional creepage/clearance barriers in Class I appliance designs. |
| UL certification (E81734) | Validates safety compliance for end-equipment certification in North American markets. |
Applications
| Vacuum Cleaner Motor Control | Washing Machine Drum Drive |
|---|---|
|
Use Scenario: Phase-angle controlled AC supply to universal motor in handheld and upright vacuum cleaners. IC Role / Device Role / Timing Role: Main power switch enabling variable speed via zero-crossing synchronized gating. Use Value: Snubberless operation eliminates 2–3 passive components per channel; 150 °C rating allows sealed enclosure placement without airflow. |
Use Scenario: Speed-regulated drum motor in front-load and top-load washing machines. IC Role / Device Role / Timing Role: Bidirectional AC switch triggered by microcontroller-driven optocoupler for torque-controlled spin cycles. Use Value: High (di/dt)c ensures clean turn-off during abrupt load changes; 1000 V/µs dV/dt prevents false triggering from motor back-EMF spikes. |
| Power Tool Motor Drivers | Industrial Fan Speed Controllers |
|
Use Scenario: Compact corded drill or angle grinder with variable-speed trigger. IC Role / Device Role / Timing Role: Line-voltage AC switch modulating motor torque via duty-cycle-adjusted conduction angle. Use Value: D²PAK footprint enables high-power density PCB layout; clip bonding improves thermal cycling reliability over 10,000+ ON/OFF cycles. |
Use Scenario: HVAC blower fan in commercial air handling units requiring EMI-compliant AC dimming. IC Role / Device Role / Timing Role: Mains-connected triac delivering phase-cut AC to shaded-pole or PSC induction motors. Use Value: UL-certified isolation and RoHS compliance support global regulatory approvals; low IGT simplifies driver IC selection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triac-based AC motor control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTB16-600SL | 16 A rating, TO-220 package, 50 mA IGT, Rth(j–c) = 1.5 °C/W, but only rated to 125 °C Tj. | Higher current headroom but larger footprint and lower thermal ceiling limits use in sealed enclosures. | Select when >8 A RMS load margin is needed and heatsink space permits TO-220 mounting. |
| MAC12A6G | 12 A rating, D²PAK, 50 mA IGT, 1200 V/µs dV/dt, but no UL certification or 150 °C rating. | Lacks safety certification and high-temp validation - unsuitable for certified consumer appliances. | Consider only for non-certified industrial prototypes where cost outweighs compliance requirements. |
Compared with BTB16-600SL and MAC12A6G, T835H-6G uniquely balances D²PAK compactness, 150 °C operation, UL listing, and snubberless reliability - making it optimal for volume production of certified, thermally constrained AC motor controls.
Availability
T835H-6G is available at Aetrix Electronics and suitable for vacuum cleaner motor drives, washing machine drum controllers, and power tool speed regulators requiring stable component supply across multi-year production lifecycles.
Supply support for T835H-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, power, MCU, and sensor solutions for industrial, automotive, and consumer markets.
T835H-6G belongs to ST's Snubberless™ Triac family, engineered specifically for high-reliability, high-temperature AC switching in universal motor and resistive load applications where thermal density and safety certification are mandatory.
FAQ
What is the maximum allowable case temperature for continuous 8 A RMS operation?
The T835H-6G supports continuous 8 A RMS conduction at TC = 133 °C, as specified in Table 2 of the datasheet. Exceeding this case temperature requires derating per Figure 2; junction temperature must remain ≤150 °C under all operating conditions.
Does T835H-6G require a heatsink in vacuum cleaner applications?
A heatsink is recommended but can be minimized due to Rth(j–c) = 1.85 °C/W and 150 °C Tj rating. In typical vacuum cleaner duty cycles (intermittent 8 A, <30 s ON), a 15 cm² copper pour with 70 µm thickness often suffices without external metal heatsink.
Can T835H-6G replace T835H-6T in existing TO-220AB designs?
No - T835H-6G uses D²PAK (surface-mount) while T835H-6T uses TO-220AB (through-hole). Footprint, thermal interface, and mechanical mounting differ fundamentally; redesign of PCB layout and thermal interface is required for migration.
Is the 2500 VRMS isolation rating tested per IEC 60747-5-1?
Yes - the 2500 VRMS isolation is validated per IEC 60747-5-1 Annex G (reinforced insulation) and confirmed in UL file E81734, supporting its use in Class I appliances with basic insulation requirements.
T835H-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):
- 8 A
- Voltage - Gate Trigger (Vgt) (Max):
- 1 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 ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
T835H-6G FAQ
1.How can I place an order for T835H-6G through Aetrix?
Please submit a Request for Quotation (RFQ) for T835H-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 T835H-6G reliable?
The price and inventory of T835H-6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T835H-6G is usually 5 days.
3.What payment methods are accepted for T835H-6G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T835H-6G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T835H-6G?
T835H-6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T835H-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 T835H-6G?
For technical support, including T835H-6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T835H-6G requirements.
6.How does Aetrix verify that T835H-6G is sourced from the original manufacturer or authorized distributors?
All T835H-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 T835H-6G meets industry standards.
7.What is the process for return or replacement of T835H-6G?
All T835H-6G units undergo pre-shipment inspection (PSI). If there is an issue with T835H-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 T835H-6G part is unused and in its original packaging.
Return procedure for T835H-6G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T835H-6G Tags
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Z0103NN5AA4
STMicroelectronics
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BTA08-600CWRG
STMicroelectronics
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T835H-6G-TR
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