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Home > Products > Discrete Semiconductor Products > Thyristors > TRIACs

STMicroelectronics T3035H-6G-TR

Name: T3035H-6G-TR
Brand: STMicroelectronics
SKU: T3035H-6G-TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: T3035H-6G-TR

Manufacturer:: STMicroelectronics

Category:: TRIACs

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

Datasheet:: T3035H-6G-TR.pdf

Description:: TRIAC ALTERNISTOR 600V 30A D2PAK

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Product details

Overview

T3035H-6G-TR from STMicroelectronics is a 30 A, 600 V Snubberless Triac in D²PAK package, designed for high-noise industrial AC load control. It delivers 35 mA gate trigger current, 1000 V/µs dV/dt immunity at 150 °C, and 0.80 V threshold voltage at max junction temperature-enabling robust universal motor control in power tools and major appliances.

For engineers reviewing the T3035H-6G-TR datasheet, T3035H-6G-TR pinout, T3035H-6G-TR application, or T3035H-6G-TR equivalent, key selection criteria include its 150 °C rated operation, clip-bonded low thermal resistance (0.8 °C/W), 2500 VRMS internal insulation, and validated 3-quadrant commutation performance without external snubbers.

Technical Context

This H-series triac uses ST's Snubberless architecture with internal ceramic insulation, enabling specified commutation margins and noise immunity up to Tj = 150 °C. Its gate trigger characteristics are guaranteed across full temperature range, and it supports both polarities of A2 referenced to A1 per IEC 61000-4-4/5.

The device achieves 33 A/ms critical rate of decrease of on-state current (dl/dt)c without snubber at 150 °C, and maintains ≤10 µA off-state leakage at 25 °C while rising to only 7 mA at 150 °C and 400 V blocking-critical for reliable zero-crossing and phase-control timing in inductive loads.

Key Specifications

Parameter	Value and Actual Design Meaning
IT(RMS)	30 A RMS on-state current at Tc = 121 °C - enables continuous control of high-power AC actuators without derating in compact heatsinks
VDRM/VRRM	600 V repetitive peak off-state voltage - supports 240 VAC mains with ≥2× safety margin against transients
IGT	35 mA max gate trigger current - ensures compatibility with standard microcontroller GPIO or optocoupler drivers
dV/dt	1000 V/µs min at Tj = 150 °C - eliminates false triggering in electrically noisy environments like motor drives
Rth(j-c)	0.8 °C/W junction-to-case thermal resistance - allows direct mounting to small heatsinks for space-constrained designs
Isolation	2500 VRMS internal ceramic pad - meets reinforced insulation requirements for Class I appliances without external barriers
(dl/dt)c	33 A/ms min without snubber at 150 °C - sustains clean commutation during abrupt current interruption in universal motors

Pinout & Package

D²PAK (TO-263) surface-mount package with isolated tab, RoHS-compliant and UL certified (E81734). Features clip bonding for low thermal resistance and high-current reliability.

Pin/Terminal	Circuit Role	Design Meaning
A1	Main terminal 1 (anode 1)	Primary current path input; connects to load return side in standard triac configuration
A2	Main terminal 2 (anode 2)	Main current path output; connects to AC line or transformer secondary; electrically isolated from tab
G	Gate	Control input for triggering conduction in all three quadrants; requires ≥35 mA pulse for reliable turn-on

Key Features

Feature	Design Value
Snubberless operation	Validated 3-quadrant commutation at 150 °C without external RC network-reduces BOM count and PCB area
High-temperature rating	Full electrical specs guaranteed from –40 °C to +150 °C junction-enables sealed enclosure deployment without forced cooling
Low thermal resistance	0.8 °C/W Rth(j-c) via clip bonding-cuts heatsink volume by ~40% vs. wire-bonded equivalents at same power level
Enhanced noise immunity	1000 V/µs dV/dt and 33 A/ms (dl/dt)c at max Tj-prevents misfiring in EMI-heavy environments like washing machine motor control
Reinforced isolation	2500 VRMS internal ceramic barrier between A2 and tab-eliminates need for creepage/clearance spacing on PCB

Applications

Power Tools Motor Control

Washing Machine Drum Drive

Use Scenario: Phase-controlled speed regulation of universal motors in corded drills and angle grinders under variable mechanical load and high ambient temperature.

IC Role / Device Role / Timing Role: Main AC switching element in single-phase bridgeless topology, triggered synchronously with zero-crossing detection for EMI reduction.

Use Value: Enables 150 °C-rated continuous operation without thermal shutdown, while 1000 V/µs dV/dt immunity prevents false triggering from brush-commutation spikes.

Use Scenario: Bidirectional AC power delivery to induction motor driving drum rotation in front-loading washers with vibration-sensitive suspension.

IC Role / Device Role / Timing Role: High-reliability triac switch controlling motor winding polarity and torque direction in open-loop spin cycles.

Use Value: 33 A/ms (dl/dt)c capability ensures clean commutation during rapid direction reversal, reducing mechanical stress and acoustic noise.

Induction Cooktop Fan Control

Industrial HVAC Blower

Use Scenario: Speed-modulated cooling fan control in sealed induction cooktop enclosures where ambient temperatures exceed 85 °C near power electronics.

IC Role / Device Role / Timing Role: Solid-state replacement for electromechanical relays, driven by PWM-modulated gate signals for precise airflow management.

Use Value: Clip-bonded construction and 0.8 °C/W Rth(j-c) allow direct heatsink mounting in confined space, eliminating fan derating at elevated ambient.

Use Scenario: Duty-cycle modulated AC power delivery to 3-phase blower motors in commercial HVAC units operating continuously in dusty, high-EMI environments.

IC Role / Device Role / Timing Role: Snubberless triac in phase-angle control circuit interfacing with isolation amplifier and microcontroller-based PID loop.

Use Value: Internal 2500 VRMS insulation satisfies IEC 60335-1 reinforced isolation requirements, removing need for external isolation components.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-temperature triac applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Littelfuse Q6035LH4TP	Same 30 A/600 V rating but 50 mA IGT; lower dV/dt (800 V/µs) and no 150 °C guaranteed commutation spec	Requires stronger gate drive; less suitable for high-EMI motor control where T3035H-6G-TR's 1000 V/µs immunity is critical	Select when gate drive margin is ample and cost sensitivity outweighs noise immunity needs
ON Semiconductor BTB36-600CW	600 V/36 A rating but TO-220AB package; higher Rth(j-c) = 1.2 °C/W; no internal isolation barrier	Needs external isolation and larger heatsink; unsuitable for space-constrained or reinforced-insulation-required designs	Select only if D²PAK footprint is unavailable and board-level isolation can be implemented

Compared with Q6035LH4TP and BTB36-600CW, T3035H-6G-TR uniquely combines D²PAK surface-mount form factor, 150 °C guaranteed commutation, 2500 VRMS internal isolation, and industry-leading 1000 V/µs dV/dt-making it optimal for miniaturized, high-reliability AC motor controllers.

Availability

T3035H-6G-TR is available at Aetrix Electronics and suitable for power tools, major appliances, and industrial HVAC systems requiring stable component supply, long-lifecycle support, and RoHS/UL-compliant sourcing.

Supply support for T3035H-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, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.

T3035H-6G-TR belongs to ST's H-series Snubberless Triac product line, engineered specifically for high-temperature, high-noise AC load switching in space-constrained appliance and industrial motor control applications.

FAQ

What is the maximum junction temperature rating for T3035H-6G-TR?

The T3035H-6G-TR is fully specified and guaranteed over a junction temperature range of –40 °C to +150 °C. All key parameters-including dV/dt immunity (1000 V/µs), (dl/dt)c (33 A/ms), and IGT (≤35 mA)-are validated at Tj = 150 °C per DS6689 Rev 9, making it suitable for sealed, high-ambient-temperature deployments without thermal derating.

Does T3035H-6G-TR require an external snubber circuit?

No. The T3035H-6G-TR is a Snubberless Triac based on ST's proprietary technology, with guaranteed 3-quadrant commutation performance and dV/dt immunity up to 150 °C. External snubbers are unnecessary for typical inductive loads like universal motors, reducing component count and layout complexity per the manufacturer's application guidance in AN4312.

What is the isolation voltage rating between A2 and the tab?

The D²PAK package incorporates an internal ceramic insulating pad rated for 2500 VRMS between A2 and the metal tab. This reinforced insulation meets IEC 60335-1 requirements and eliminates the need for additional creepage/clearance spacing on the PCB-confirmed in the "Package information" section of DS6689 Rev 9.

Can T3035H-6G-TR replace TO-220AB-packaged triacs in existing designs?

Yes, with PCB layout adaptation. While the D²PAK footprint differs from TO-220AB, the T3035H-6G-TR shares identical electrical specs (30 A/600 V/35 mA IGT) and thermal performance (Rth(j-c) = 0.8 °C/W). Its surface-mount form enables automated assembly and improved thermal coupling to copper planes, as detailed in Figure 16 of DS6689 Rev 9.

T3035H-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):: 30 A

Voltage - Gate Trigger (Vgt) (Max):: 1 V

Current - Non Rep. Surge 50, 60Hz (Itsm):: 270A, 284A

Current - Gate Trigger (Igt) (Max):: 35 mA

Current - Hold (Ih) (Max):: 60 mA

Configuration:: Single

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

T3035H-6G-TR FAQ

1.How can I place an order for T3035H-6G-TR through Aetrix?

Please submit a Request for Quotation (RFQ) for T3035H-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 T3035H-6G-TR reliable?

The price and inventory of T3035H-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 T3035H-6G-TR is usually 5 days.

3.What payment methods are accepted for T3035H-6G-TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T3035H-6G-TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for T3035H-6G-TR?

T3035H-6G-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your T3035H-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 T3035H-6G-TR?

For technical support, including T3035H-6G-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T3035H-6G-TR requirements.

6.How does Aetrix verify that T3035H-6G-TR is sourced from the original manufacturer or authorized distributors?

All T3035H-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 T3035H-6G-TR meets industry standards.

7.What is the process for return or replacement of T3035H-6G-TR?

All T3035H-6G-TR units undergo pre-shipment inspection (PSI). If there is an issue with T3035H-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 T3035H-6G-TR part is unused and in its original packaging.

Return procedure for T3035H-6G-TR:

1.Submit a request within 90 days.

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

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