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Home > Products > Discrete Semiconductor Products > Thyristors > TRIACs

STMicroelectronics T1035H-6T

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

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Part No.:: T1035H-6T

Manufacturer:: STMicroelectronics

Category:: TRIACs

Package:: TO-220-3

Datasheet:: T1035H-6T.pdf

Description:: TRIAC ALTERNISTOR 600V 10A TO220

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Inventory:2,260

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Product details

Overview

T1035H-6T from STMicroelectronics is a 10 A, 600 V Snubberless™ Triac in TO-220AB package, designed for high-temperature AC mains switching with 150 °C maximum junction temperature, 35 mA max gate trigger current, and 1000 V/µs dV/dt immunity at Tj = 150 °C. It enables compact motor control in vacuum cleaners and washing machine drum drives.

For engineers reviewing the T1035H-6T datasheet, T1035H-6T pinout, T1035H-6T application, or T1035H-6T equivalent, key selection criteria include snubberless commutation capability, thermal resistance (Rth(j-c) = 1.45 °C/W), 3-quadrant triggering robustness, and UL certification (E81734) for safety-critical appliance designs.

Technical Context

This Triac operates without external snubbers across all four quadrants, leveraging internal design to sustain 13 A/ms critical commutation rate (dI/dt)c at 150 °C junction temperature. Its low dynamic resistance (34 mΩ at Tj = 150 °C) and threshold voltage (0.80 V) minimize conduction losses in high-duty-cycle motor loads.

The device uses clip bonding for low thermal resistance and integrates a ceramic pad enabling 2500 V_rms isolation in insulated variants-though the -6T variant is non-insulated TO-220AB. Gate sensitivity is specified at 35 mA max (Quadrants I, II, III), with guaranteed turn-on at 20% of that value.

Key Specifications

Parameter	Value and Actual Design Meaning
IT(RMS)	10 A - Sustains full-sine-wave load current at Tc = 135 °C, enabling high-power density motor drive without oversized heatsinks.
VDRM/VRRM	600 V - Blocks peak mains voltage (≈848 V) with margin; supports global 230 VAC and 120 VAC systems with safety headroom.
IGT (max)	35 mA - Low gate drive requirement reduces MCU GPIO or driver IC loading; verified across all three triggering quadrants.
dV/dt (min)	1000 V/µs at Tj = 150 °C - Prevents false triggering during fast transients in noisy industrial or appliance environments.
Rth(j-c)	1.45 °C/W - Enables efficient heat transfer to heatsink; allows >7 W power dissipation at ΔT = 10 °C case-to-heatsink rise.
(dI/dt)c	13 A/ms at Tj = 150 °C - Supports reliable commutation in universal motor phase-control circuits without snubber networks.
IDRM/IRRM	3.6 mA at Tj = 150 °C - Low leakage maintains blocking integrity at elevated temperatures during standby or zero-crossing intervals.

Pinout & Package

TO-220AB package with isolated mounting tab (non-insulated version); standard 3-pin through-hole configuration with center-tab thermal path. Pin assignment validated per STMicroelectronics Doc ID 13565 Rev 2, Figure on page 1.

Pin/Terminal	Circuit Role	Design Meaning
A1 (MT1)	Main Terminal 1	Reference terminal for gate triggering; connects to neutral or low-side AC line in phase-control topologies.
A2 (MT2)	Main Terminal 2	High-current AC path terminal; carries full load current; electrically tied to heatsink in non-insulated TO-220AB (-6T).
G	Gate	Control input for bidirectional conduction initiation; triggers in Quadrants I, II, and III with ≤35 mA pulse.

Key Features

Feature	Design Value
Snubberless™ commutation	Eliminates external RC snubber components in 3-quadrant operation, reducing BOM count and PCB area in motor phase-control circuits.
150 °C junction rating	Enables sustained operation in thermally constrained enclosures (e.g., vacuum cleaner housings), extending reliability beyond standard 125 °C Triacs.
Low Rth(j-c) = 1.45 °C/W	Reduces required heatsink size by ~30% vs. legacy Triacs with Rth(j-c) > 2.0 °C/W at same IT(RMS), lowering system cost and weight.
UL certification (E81734)	Validates safety compliance for end-equipment certification in North American appliances without additional isolation barriers.
RoHS-compliant ECOPACK®	Meets EU Directive 2002/95/EC; lead-free termination and halogen-free molding compound support eco-design requirements.

Applications

Vacuum Cleaner Motor Control

Washing Machine Drum Drive

Use Scenario: Phase-angle controlled universal motor speed regulation in portable vacuum cleaners with tight thermal envelopes.

IC Role / Device Role / Timing Role: Bidirectional AC switch triggered by microcontroller-generated gate pulses synchronized to zero-crossing detection.

Use Value: Snubberless operation eliminates 2–3 passive components per channel; 150 °C rating avoids derating at 85 °C ambient inside sealed housing.

Use Scenario: High-cycle, high-torque AC motor switching in washing machine spin and wash cycles under variable load and temperature.

IC Role / Device Role / Timing Role: Main power switch modulating RMS voltage to drum motor via leading-edge phase control with precise gate timing.

Use Value: 13 A/ms (dI/dt)c ensures clean turn-off during high-inductive current decay; low VT (1.5 V) minimizes conduction loss at 10 A RMS.

Industrial Fan Speed Controllers

Power Tool Motor Drives

Use Scenario: Compact, fan-cooled HVAC blower control where board space and thermal management are constrained.

IC Role / Device Role / Timing Role: Mains-switching element in TRIAC-based dimming modules interfacing with analog or PWM-controlled gate drivers.

Use Value: Rth(j-c) = 1.45 °C/W enables direct mounting to small extruded heatsinks; 1000 V/µs dV/dt prevents misfiring from EMI in shared power rails.

Use Scenario: Corded power tool motor control requiring rugged, high-reliability AC switching under mechanical vibration and thermal cycling.

IC Role / Device Role / Timing Role: Primary power switch in brushed universal motor H-bridge alternatives, handling 10 A RMS surges during stall conditions.

Use Value: 100 A non-repetitive surge rating (50 Hz, 20 ms) withstands startup inrush; UL E81734 supports tool safety certification.

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
BTA12-600BWRG	12 A rating, 600 V, but rated only to 125 °C Tj; higher IGT (50 mA); no UL certification.	Lacks 150 °C capability and UL listing; requires larger heatsink above 85 °C ambient.	Select when higher current headroom is needed and thermal environment is controlled below 125 °C.
MAC10N600	10 A, 600 V, 125 °C max Tj; lower dV/dt (600 V/µs); no Snubberless™ architecture.	Requires external snubber network; not qualified for high-temp appliance use per UL standards.	Choose for cost-sensitive, non-safety-critical industrial controls where snubber components are acceptable.

Compared with BTA12-600BWRG and MAC10N600, T1035H-6T delivers superior thermal resilience (150 °C), certified safety (UL E81734), and snubberless operation-making it the preferred choice for compact, high-reliability appliance motor drives where thermal margin and regulatory compliance are critical.

Availability

T1035H-6T 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, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for T1035H-6T 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.

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

FAQ

Is T1035H-6T compatible with standard TO-220AB heatsinks?

Yes, T1035H-6T uses the industry-standard TO-220AB outline with center-tab mounting. Its non-insulated construction requires electrically isolated mounting hardware if the heatsink is grounded. Thermal interface material must accommodate its 1.45 °C/W Rth(j-c) to achieve rated 10 A RMS performance at Tc = 135 °C.

What gate drive circuitry is recommended for reliable triggering?

A 35 mA, 10–20 µs pulse with <100 ns rise time is sufficient for Quadrant I, II, and III triggering. Use a series resistor (e.g., 220 Ω) between MCU GPIO and gate to limit peak current; avoid exceeding 4 A IGM or 1 W PG(AV) average gate power at 150 °C junction temperature.

Does T1035H-6T require a snubber network in universal motor applications?

No-its Snubberless™ architecture eliminates the need for external RC snubbers in 3-quadrant operation. This is validated by ≥13 A/ms (dI/dt)c and ≥1000 V/µs dV/dt ratings at 150 °C, enabling direct connection to inductive motor windings without added components.

How does T1035H-6T differ from the T1050H-6T variant?

T1050H-6T has identical package, voltage, and thermal specs but higher gate sensitivity: 50 mA max IGT (vs. 35 mA), 75 mA max IH, and 1500 V/µs dV/dt. It is selected when driving from higher-impedance or lower-power gate sources; T1035H-6T offers tighter gate threshold control for deterministic triggering in noise-prone environments.

T1035H-6T Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: Snubberless™

Package/Case:: TO-220-3

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 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:: Through Hole

Supplier Device Package:: TO-220

T1035H-6T FAQ

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

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

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

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

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

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for T1035H-6T?

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

Once your T1035H-6T 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-6T?

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

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

All T1035H-6T 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-6T meets industry standards.

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

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

Return procedure for T1035H-6T:

1.Submit a request within 90 days.

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

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