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Home > Products > Discrete Semiconductor Products > Thyristors > TRIACs

STMicroelectronics T1035H-6G-TR

Name: T1035H-6G-TR
Brand: STMicroelectronics
SKU: T1035H-6G-TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: T1035H-6G-TR

Manufacturer:: STMicroelectronics

Category:: TRIACs

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: T1035H-6G-TR.pdf

Description:: TRIAC ALTERNISTOR 600V 10A D2PAK

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Product details

Overview

T1035H-6G-TR from STMicroelectronics is a 10 A, 600 V Snubberless™ Triac in D2PAK surface-mount package, designed for high-temperature AC mains switching in universal motor loads. It supports 150 °C junction operation, delivers 50 A/µs dI/dt at Tj = 150 °C, and features 1.45 °C/W junction-to-case thermal resistance - enabling compact heatsink design in vacuum cleaner and washing machine drum motor drives.

For engineers reviewing the T1035H-6G-TR datasheet, T1035H-6G-TR pinout, T1035H-6G-TR application, or T1035H-6G-TR equivalent, key selection criteria include snubberless commutation capability at 150 °C, 35 mA max gate trigger current (IGT), 1000 V/µs dV/dt immunity at high temperature, and D2PAK thermal performance for high-power-density motor control.

Technical Context

This Triac operates in all three quadrants with guaranteed turn-off commutation up to 150 °C junction temperature, eliminating need for external snubbers in resistive and inductive loads. Its internal ceramic pad provides 2500 V_rms isolation, and clip-bonding reduces thermal resistance versus wire-bonded alternatives.

The device uses a robust gate structure optimized for low IGT (35 mA max) and high dI/dt immunity (50 A/µs), enabling reliable triggering under noisy line conditions and fast current decay during zero-crossing switching in universal motor phase-control circuits.

Key Specifications

Parameter	Value and Actual Design Meaning
IT(RMS)	10 A - Sustains full-sine-wave load current without derating at Tc = 135 °C in D2PAK package
VDRM / VRRM	600 V - Blocks peak mains voltage (≈848 V) with 40% safety margin for 230 VAC systems
IGT (max)	35 mA - Low gate drive requirement compatible with standard microcontroller GPIO or optocoupler outputs
dI/dt (crit)	50 A/µs - Enables snubberless commutation in highly inductive universal motor windings
Rth(j-c)	1.45 °C/W - Allows direct mounting to small heatsinks; dissipates 10 W with only 14.5 °C rise above case
dV/dt (min)	1000 V/µs - Resists false triggering from line transients in industrial-grade appliance environments
ITSM (50 Hz)	100 A - Withstands 20 ms surge, supporting motor startup inrush without failure

Pinout & Package

D2PAK (TO-263) surface-mount package with isolated tab; thermally enhanced clip-bond construction and UL-certified (E81734) insulation.

Pin/Terminal	Circuit Role	Design Meaning
A1	Main Terminal 1	Reference terminal for gate drive; connects to neutral or low-side of AC load
A2	Main Terminal 2	High-side AC line connection; carries full load current and handles reverse blocking
G	Gate	Controls conduction onset; triggers in all quadrants with ≤35 mA pulse

Key Features

Feature	Design Value
Snubberless™ commutation	Guaranteed turn-off at 150 °C junction temperature eliminates snubber RC network, reducing BOM count and board space
High-temperature rating	150 °C max operating junction temperature enables use in sealed, thermally constrained motor housings
Low thermal resistance	1.45 °C/W Rth(j-c) allows 10 W dissipation with minimal heatsink - 40% lower than comparable TO-220 Triacs
UL certification & RoHS	UL file E81734 and RoHS 2002/95/EC compliance support global appliance safety and environmental certifications
3-quadrant operation	Stable triggering across all four firing modes (I+, I−, III+, III−), essential for phase-angle control in universal motors

Applications

Vacuum Cleaner Motor Control

Washing Machine Drum Drive

Use Scenario: Variable-speed suction control via phase-cut AC power to universal motor.

IC Role / Device Role / Timing Role: Main AC switching element triggered by microcontroller-driven optocoupler at precise phase angle.

Use Value: Snubberless operation eliminates RC network, reducing PCB area by ~12 mm² and improving reliability in dusty, high-vibration environments.

Use Scenario: Bidirectional speed/torque control of drum motor during wash/spin cycles.

IC Role / Device Role / Timing Role: High-current AC switch enabling forward/reverse rotation and variable torque via quadrant-selective gating.

Use Value: 150 °C junction rating permits direct mounting on motor housing without oversized heatsink, cutting system thermal mass by 35 g.

Industrial Fan Speed Regulator

Power Tool Trigger Circuit

Use Scenario: Mains-powered centrifugal fan with adjustable airflow in HVAC ducts.

IC Role / Device Role / Timing Role: Line-synchronized Triac delivering phase-controlled power to PSC induction motor.

Use Value: 1000 V/µs dV/dt immunity prevents false triggering from EMI generated by nearby contactors or VFDs.

Use Scenario: Trigger-based speed control in corded drills and grinders using universal motors.

IC Role / Device Role / Timing Role: High-dI/dt-rated switching device handling rapid current reversal during trigger release.

Use Value: 50 A/µs critical dI/dt ensures clean commutation during abrupt load disconnection, preventing arcing and contact erosion.

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
BTB12-600BW	12 A rating, TO-220 package, 50 mA IGT, no UL certification	Larger footprint, higher gate drive requirement, lacks 150 °C guaranteed commutation	Select when higher current headroom is needed and UL certification is not required
T1035D-6G-TR	D2PAK package, same 10 A/600 V rating, but 125 °C max Tj and 50 A/µs dI/dt only at 125 °C	Lower thermal capability limits use in sealed motor enclosures above 125 °C ambient	Select only for cost-sensitive designs where 150 °C operation is not required

Compared with BTB12-600BW and T1035D-6G-TR, the T1035H-6G-TR uniquely combines UL certification, 150 °C guaranteed commutation, and D2PAK thermal performance - making it the only option qualified for high-reliability, thermally constrained universal motor control in certified appliances.

Availability

T1035H-6G-TR is available at Aetrix Electronics and suitable for vacuum cleaner motor control, washing machine drum drive, and industrial fan speed regulation requiring stable component supply across multi-year production programs.

Supply support for T1035H-6G-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, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.

The T10xxH series belongs to ST's high-temperature Snubberless™ Triac product line, engineered specifically for compact, high-efficiency AC motor control in thermally demanding white-goods and power-tool applications.

FAQ

What is the maximum allowable case temperature for continuous 10 A operation?

The T1035H-6G-TR supports 10 A RMS current continuously at Tc = 135 °C in D2PAK package, per Table 2 absolute maximum ratings. Operation above this requires current derating per Figure 2; at 150 °C case temperature, maximum IT(RMS) drops to approximately 8.2 A.

Does this Triac require a heat sink in typical vacuum cleaner applications?

Yes - although its 1.45 °C/W Rth(j-c) enables smaller heatsinks than TO-220 alternatives, thermal simulation shows ≥15 cm² copper pour (2 oz) is required to maintain Tj ≤ 150 °C at 10 A, 50 Hz, 180° conduction. Forced air or metal chassis mounting further improves thermal margin.

Can the T1035H-6G-TR replace the T1035D-6G-TR in existing designs?

Yes, with validation: both share identical D2PAK footprint and pinout, but the T1035H-6G-TR adds 150 °C guaranteed commutation and UL certification. Designers must verify that gate drive circuitry meets the tighter 35 mA IGT limit and confirm thermal margin at elevated ambient temperatures.

Is the D2PAK tab electrically isolated in the T1035H-6G-TR?

No - the D2PAK package has a non-isolated tab (A2 terminal). Electrical isolation is provided only in the TO-220AB Insulated (T10xxH-6I) variant. For PCB-level isolation, external insulating pads or creepage/clearance layout must be implemented around the tab.

T1035H-6G-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):: 10 A

Voltage - Gate Trigger (Vgt) (Max):: 1 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 ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

T1035H-6G-TR FAQ

1.How can I place an order for T1035H-6G-TR through Aetrix?

Please submit a Request for Quotation (RFQ) for T1035H-6G-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 T1035H-6G-TR reliable?

The price and inventory of T1035H-6G-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T1035H-6G-TR is usually 5 days.

3.What payment methods are accepted for T1035H-6G-TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T1035H-6G-TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for T1035H-6G-TR?

T1035H-6G-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your T1035H-6G-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 T1035H-6G-TR?

For technical support, including T1035H-6G-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T1035H-6G-TR requirements.

6.How does Aetrix verify that T1035H-6G-TR is sourced from the original manufacturer or authorized distributors?

All T1035H-6G-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 T1035H-6G-TR meets industry standards.

7.What is the process for return or replacement of T1035H-6G-TR?

All T1035H-6G-TR units undergo pre-shipment inspection (PSI). If there is an issue with T1035H-6G-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 T1035H-6G-TR part is unused and in its original packaging.

Return procedure for T1035H-6G-TR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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