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Home > Products > Discrete Semiconductor Products > Thyristors > TRIACs

STMicroelectronics T810-600G

Name: T810-600G
Brand: STMicroelectronics
SKU: T810-600G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: T810-600G

Manufacturer:: STMicroelectronics

Category:: TRIACs

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

Datasheet:: T810-600G.pdf

Description:: TRIAC SENS GATE 600V 8A D2PAK

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Product details

Overview

T810-600G from STMicroelectronics is a snubberless, logic-level triac rated for 8 A RMS on-state current and 600 V repetitive peak off-state voltage (VDRM/VRRM), designed for AC phase control and switching in inductive loads. It features 10 mA maximum gate trigger current (IGT), 1.55 V max on-state voltage (VTM) at 11 A, and 50 mΩ dynamic resistance - enabling direct interface with microcontrollers in motor speed controllers and light dimmers.

For engineers reviewing the T810-600G datasheet, T810-600G pinout, T810-600G application, or T810-600G equivalent, key selection criteria include commutation robustness on inductive loads, gate sensitivity for low-power drive, thermal resistance (Rth(j-c) = 1.6 °C/W), and D²PAK package suitability for high-power PCB layouts.

Technical Context

This triac operates in three quadrants (I, II, III) with logic-level gate sensitivity (IGT ≤ 10 mA), optimized for zero-crossing–free triggering in phase-control topologies. Its snubberless architecture delivers 400 V/µs critical dV/dt immunity at 125 °C junction temperature without external RC networks.

It supports full-cycle sinusoidal conduction up to 8 A RMS at case temperature TC = 110 °C, with 80 A non-repetitive surge capability (50 Hz, 20 ms). The device uses a ceramic-insulated die attach in D²PAK, achieving 2500 VRMS isolation between tab and terminals per UL E81734.

Key Specifications

Parameter	Value and Actual Design Meaning
IT(RMS)	8 A RMS - supports continuous AC load switching up to 1.8 kW at 230 VAC.
VDRM / VRRM	600 V - withstands peak line voltages in 230 VAC mains with 2× safety margin.
IGT (max)	10 mA - directly drivable by GPIO pins of ARM Cortex-M or PIC microcontrollers.
VTM (max)	1.55 V at 11 A - limits conduction loss to <17 W at full RMS current, reducing heatsink requirements.
Rth(j-c)	1.6 °C/W - enables thermal management with compact heatsinks in enclosed industrial enclosures.
dV/dt (min)	400 V/µs at Tj = 125 °C - eliminates need for snubber circuits with inductive loads like solenoids or fan motors.
(dl/dt)c	5.4 A/ms at (dV/dt)c = 0.1 V/µs - ensures reliable turn-off during rapid current decay in motor windings.

Pinout & Package

D²PAK (TO-263) surface-mount package with isolated copper tab rated 2500 VRMS; thermally efficient layout with 1.6 °C/W junction-to-case resistance and recommended 16.9 mm × 10.3 mm footprint per Figure 18.

Pin/Terminal	Circuit Role	Design Meaning
A1	Main terminal 1 (MT1)	Reference anode for gate triggering; connects to neutral or low-side AC path in phase-control circuits.
A2	Main terminal 2 (MT2)	High-side AC load connection; carries full RMS current and must be routed with 2.5 mm creepage clearance.
G	Gate	Logic-level input (≤10 mA IGT); requires no series resistor when driven by 3.3 V MCU GPIO with internal pull-down.

Key Features

Feature	Design Value
Snubberless operation	Validated 400 V/µs dV/dt immunity at 125 °C - removes discrete RC snubber components and board space.
Logic-level gate drive	10 mA max IGT - eliminates gate driver ICs; compatible with 3.3 V/5 V microcontrollers without level-shifting.
Three-quadrant triggering	Operates in quadrants I, II, III only - suppresses false triggering from noise in quadrant IV, improving reliability in noisy industrial environments.
UL-certified insulation	2500 VRMS tab-to-terminal isolation (UL file E81734) - meets reinforced insulation requirements for Class I appliances.
Halogen-free ECOPACK2	D²PAK molding compound complies with RoHS and JEDEC J-STD-020 reflow profiles - supports lead-free manufacturing.

Applications

Light Dimming Systems

Motor Speed Control

Use Scenario: Phase-angle dimming of incandescent and halogen lamps in residential and commercial lighting.

IC Role / Device Role / Timing Role: Main AC power switch controlling conduction angle per half-cycle; triggered synchronously with zero-crossing detection.

Use Value: Enables smooth 0–100% brightness control with <1% flicker due to stable 10 mA gate threshold and 400 V/µs dV/dt immunity against lamp filament transients.

Use Scenario: Variable-speed control of single-phase induction motors in HVAC blowers and kitchen exhaust fans.

IC Role / Device Role / Timing Role: Bidirectional AC switch modulating RMS voltage applied to motor windings via phase-cutting.

Use Value: Eliminates snubber components while sustaining 8 A RMS under inductive kickback, reducing BOM count and thermal stress during stall conditions.

Heating Regulation

Static Relay Replacement

Use Scenario: Proportional power delivery to resistive heating elements in industrial ovens and soldering stations.

IC Role / Device Role / Timing Role: Solid-state ON/OFF switch implementing time-proportioned control (e.g., 2 s ON / 8 s OFF = 20% power).

Use Value: Delivers precise thermal regulation with <0.5°C stability using 1.55 V VTM and 50 mΩ RD to minimize self-heating drift.

Use Scenario: Contactless replacement of electromechanical relays in PLC output modules and building automation panels.

IC Role / Device Role / Timing Role: Fail-safe AC load switch with galvanic isolation and surge immunity for 100,000+ operations.

Use Value: Achieves 2500 VRMS reinforced insulation and 80 A surge rating - exceeds IEC 61812-1 requirements for static relay safety integrity.

Equivalent & Alternatives

The following parts are listed as comparable options for similar triac switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BTA08-600SW	TO-220AB insulated package; identical 10 mA IGT and 600 V rating but higher Rth(j-c) = 2.5 °C/W.	Requires larger heatsink; better suited for chassis-mounted, ventilated enclosures vs. dense SMT layouts.	Select when mechanical mounting to metal chassis is preferred over PCB thermal pads.
T835-600G	D²PAK package with 35 mA IGT; higher gate drive requirement but superior commutation (1000 V/µs dV/dt) for highly inductive loads.	Used where load inductance exceeds 50 mH (e.g., large transformer primaries); less suitable for direct MCU drive.	Select when driving heavy inductive loads without gate amplification and highest dV/dt immunity is mandatory.

Compared with BTA08-600SW, T810-600G offers 39% lower thermal resistance for same power dissipation; compared with T835-600G, it reduces gate drive burden by 65% while maintaining snubberless operation for medium-inductance loads (≤20 mH).

Availability

T810-600G is available at Aetrix Electronics and suitable for motor speed control, light dimming, heating regulation, and static relay replacement requiring stable component supply across industrial production cycles.

Supply support for T810-600G 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, and microcontroller solutions for industrial, automotive, and consumer markets.

The T8 series belongs to ST's high-reliability snubberless triac product line, engineered specifically for robust AC switching in cost-sensitive, space-constrained industrial controls where gate drive simplicity and inductive load resilience are critical.

FAQ

What is the maximum junction temperature for continuous operation?

The T810-600G has a specified operating junction temperature range of –40 °C to +125 °C. Continuous operation at 125 °C requires maintaining case temperature ≤110 °C per Table 1, achievable with a heatsink providing ≤1.6 °C/W thermal resistance from case to ambient.

Does T810-600G require a heat sink in a 5 A RMS application?

Yes - even at 5 A RMS, power dissipation exceeds 4 W (based on VTM ≈1.3 V and RD ≈50 mΩ). With Rth(j-c) = 1.6 °C/W, junction temperature rise would exceed 100 °C without heatsinking; a minimum 5 °C/W heatsink is recommended for ambient temperatures up to 70 °C.

Can T810-600G replace a standard 4-quadrant triac in existing designs?

No - T810-600G is a 3-quadrant device (quadrants I, II, III only) and lacks quadrant IV triggering capability. It cannot substitute for 4-quadrant triacs in circuits relying on gate-triggered turn-on during negative A2-to-A1 voltage polarity without external circuit modification.

Is the D²PAK tab electrically isolated from the A2 terminal?

Yes - the D²PAK package uses an internal ceramic pad to insulate the copper tab from all terminals, certified to 2500 VRMS per UL file E81734. The tab is internally connected to A2, but isolation allows safe mounting to grounded metal heatsinks without shorting A2 to chassis ground.

T810-600G Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

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

Packaging:: Tube

Product Status:: Obsolete

Triac Type:: Logic - Sensitive Gate

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):: 10 mA

Current - Hold (Ih) (Max):: 15 mA

Configuration:: Single

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

T810-600G FAQ

1.How can I place an order for T810-600G through Aetrix?

Please submit a Request for Quotation (RFQ) for T810-600G 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 T810-600G reliable?

The price and inventory of T810-600G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T810-600G is usually 5 days.

3.What payment methods are accepted for T810-600G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T810-600G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for T810-600G?

T810-600G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your T810-600G 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 T810-600G?

For technical support, including T810-600G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T810-600G requirements.

6.How does Aetrix verify that T810-600G is sourced from the original manufacturer or authorized distributors?

All T810-600G 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 T810-600G meets industry standards.

7.What is the process for return or replacement of T810-600G?

All T810-600G units undergo pre-shipment inspection (PSI). If there is an issue with T810-600G, 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 T810-600G part is unused and in its original packaging.

Return procedure for T810-600G:

1.Submit a request within 90 days.

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

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