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Home > Products > Discrete Semiconductor Products > Thyristors > TRIACs

STMicroelectronics T1610T-8G-TR

Name: T1610T-8G-TR
Brand: STMicroelectronics
SKU: T1610T-8G-TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: T1610T-8G-TR

Manufacturer:: STMicroelectronics

Category:: TRIACs

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

Datasheet:: T1610T-8G-TR.pdf

Description:: TRIAC SENS GATE 800V 16A D2PAK

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Inventory:37,978

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Product details

Overview

T1610T-8G from STMicroelectronics is a logic-level, three-quadrant triac in D²PAK surface-mount package, rated for 16 A RMS on-state current and 800 V repetitive peak off-state voltage (VDRM/VRRM), with 10 mA gate trigger current (IGT) enabling direct MCU control. It supports phase-angle and on/off AC switching for resistive loads up to 150 °C junction temperature, and is used in hybrid relays and inrush current limiting circuits.

For engineers reviewing the T1610T-8G datasheet, T1610T-8G pinout, T1610T-8G application, or T1610T-8G equivalent, key selection criteria include its 900 V non-repetitive surge rating (VDSM/VRSM), 100 A/µs critical di/dt, 1.15 °C/W junction-to-case thermal resistance, and D²PAK footprint compatibility with automated SMT assembly.

Technical Context

This triac operates across quadrants I, II, and III, supporting bidirectional conduction without requiring polarity-sensitive gate drive. Its low 10 mA IGT and 1.3 V maximum gate trigger voltage (VGT) allow direct interfacing with 3.3 V or 5 V microcontrollers without external amplification.

The device features enhanced commutation robustness on resistive loads and high dV/dt immunity (≥100 V/µs at 125 °C), making it suitable for noisy AC line environments. Thermal design is supported by a 1.15 °C/W Rth(j-c) and operation up to 150 °C junction temperature, enabled by halogen-free UL94 V0 molding compound.

Key Specifications

Parameter	Value and Actual Design Meaning
IT(RMS)	16 A - continuous AC load current handling at 126 °C case temperature
VDRM / VRRM	800 V - maximum repetitive blocking voltage at 125 °C junction temperature
VDSM / VRSM	900 V - non-repetitive surge withstand capability for transient overvoltage protection
IGT	10 mA - gate trigger current sufficient for direct drive from standard MCU GPIO pins
Rth(j-c)	1.15 °C/W - enables efficient heat transfer to heatsink or copper pad in compact SMT layout
dV/dt (min)	100 V/µs at 125 °C - ensures reliable turn-on without false triggering under fast-rising line transients
dl/dt (min)	100 A/µs - supports clean commutation during zero-crossing switching of resistive loads

Pinout & Package

D²PAK (TO-263) surface-mount package with isolated tab (A2), molded halogen-free resin meeting UL94 V0, RoHS and Ecopack2 compliant. Tab is electrically connected to Anode 2 (A2).

Pin/Terminal	Circuit Role	Design Meaning
A2	Anode 2	Main current terminal; electrically tied to exposed metal tab for thermal and electrical connection
A1	Anode 1	Second main current terminal; referenced to A2 for bidirectional conduction path
G	Gate	Control input; triggers conduction in all three quadrants with ≤10 mA DC current

Key Features

Feature	Design Value
Three-quadrant operation	Enables gate-triggered conduction in quadrants I, II, and III - eliminates need for external snubbers in many AC control topologies
Logic-level gate drive	10 mA IGT and 1.3 V VGT allow direct interface with 3.3 V/5 V MCUs - reduces BOM count and PCB area
High thermal margin	Rated for 150 °C max junction temperature - extends reliability in enclosed or high-ambient environments
Surge-rated blocking	900 V VDSM/VRSM - provides headroom for line surges and transient suppression in mains-connected applications

Applications

Hybrid Relay Replacement

Inrush Current Limiting

Use Scenario: Replacing electromechanical relays in smart home controllers where silent operation and long lifetime are required.

IC Role / Device Role / Timing Role: Bidirectional AC switch controlling 120/230 VAC resistive heating elements or lighting loads.

Use Value: Eliminates contact wear and bounce; leverages 100 A/µs di/dt rating to sustain repeated hot-switching without latch-up.

Use Scenario: Limiting inrush into large capacitive input stages of power supplies or LED drivers during cold start.

IC Role / Device Role / Timing Role: Phase-controlled soft-start switch placed in series with AC input before rectifier bridge.

Use Value: Uses 16 A RMS rating and 126 A non-repetitive surge current to absorb capacitor charging spikes without derating.

Overvoltage Crowbar Protection

Small Appliance Motor Control

Use Scenario: Fast-acting crowbar circuit triggered by overvoltage detection to short AC line and blow fuse during fault conditions.

IC Role / Device Role / Timing Role: High-speed, high-energy clamping switch activated by comparator-driven gate pulse.

Use Value: 900 V VDSM rating and 100 V/µs dV/dt immunity ensure reliable triggering only on true overvoltage events - not noise.

Use Scenario: Speed and on/off control of universal motors in vacuum cleaners or blenders using phase-angle dimming.

IC Role / Device Role / Timing Role: Main AC power switch modulated via zero-crossing synchronized PWM from MCU.

Use Value: Three-quadrant operation allows full-wave control without polarity reversal circuitry - simplifies driver design.

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
BTB16-800CW	Same 16 A/800 V rating but 35 mA IGT - requires gate buffer for MCU drive	Lacks three-quadrant operation - limited to quadrant I/III triggering	Select when cost sensitivity outweighs MCU integration needs and board space permits buffer circuit
T1635T-8G	Higher 35 mA IGT but same D²PAK package and 150 °C rating	Optimized for higher EMI immunity in industrial motor drives - not logic-level compatible	Prefer for high-noise environments where gate drive robustness > MCU direct-drive convenience

Compared with BTB16-800CW and T1635T-8G, the T1610T-8G uniquely combines logic-level gate drive, three-quadrant operation, and D²PAK thermal performance - making it optimal for space-constrained, MCU-integrated AC control where simplicity and thermal headroom are prioritized.

Availability

T1610T-8G is available at Aetrix Electronics and suitable for hybrid relay replacement, inrush current limiting, and overvoltage crowbar protection requiring stable component supply and long-term manufacturing continuity.

Supply support for T1610T-8G 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, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.

The T-series triacs are engineered specifically for high-EMI AC line control applications, emphasizing logic-level gate drive, thermal resilience, and robust commutation in compact surface-mount packages.

FAQ

What is the maximum allowable junction temperature for continuous operation?

The T1610T-8G is rated for continuous operation up to 150 °C junction temperature, validated per absolute maximum ratings in DS12532 Rev 3. At this temperature, VDRM drops to 600 V and IT(RMS) remains 16 A only if case temperature is held at 126 °C with adequate heatsinking.

Can this triac be driven directly from a 3.3 V microcontroller GPIO?

Yes - with a maximum IGT of 10 mA and VGT ≤ 1.3 V at 25 °C, the T1610T-8G can be reliably triggered by a 3.3 V MCU output through a simple 330 Ω series resistor, delivering ~10 mA gate current while staying within safe operating limits.

Is the D²PAK tab electrically isolated or connected to a terminal?

Per the datasheet mechanical drawing and pinout, the exposed metal tab in the D²PAK package is electrically connected to Anode 2 (A2). It must be mounted on a thermally conductive but electrically isolated heatsink or copper pour unless A2 is referenced to system ground.

Does this triac support phase-angle control for dimming applications?

Yes - as a three-quadrant triac, the T1610T-8G supports full-wave phase-angle control on both half-cycles of AC mains. Its 100 V/µs dV/dt rating and 100 A/µs di/dt capability ensure stable triggering and commutation during leading-edge dimming of resistive and lightly inductive loads.

T1610T-8G-TR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Triac Type:: Logic - Sensitive Gate

Voltage - Off State:: 800 V

Current - On State (It (RMS)) (Max):: 16 A

Voltage - Gate Trigger (Vgt) (Max):: 1.3 V

Current - Non Rep. Surge 50, 60Hz (Itsm):: 120A, 126A

Current - Gate Trigger (Igt) (Max):: 10 mA

Current - Hold (Ih) (Max):: 25 mA

Configuration:: Single

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

T1610T-8G-TR FAQ

1.How can I place an order for T1610T-8G-TR through Aetrix?

Please submit a Request for Quotation (RFQ) for T1610T-8G-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 T1610T-8G-TR reliable?

The price and inventory of T1610T-8G-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T1610T-8G-TR is usually 5 days.

3.What payment methods are accepted for T1610T-8G-TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T1610T-8G-TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for T1610T-8G-TR?

T1610T-8G-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your T1610T-8G-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 T1610T-8G-TR?

For technical support, including T1610T-8G-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T1610T-8G-TR requirements.

6.How does Aetrix verify that T1610T-8G-TR is sourced from the original manufacturer or authorized distributors?

All T1610T-8G-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 T1610T-8G-TR meets industry standards.

7.What is the process for return or replacement of T1610T-8G-TR?

All T1610T-8G-TR units undergo pre-shipment inspection (PSI). If there is an issue with T1610T-8G-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 T1610T-8G-TR part is unused and in its original packaging.

Return procedure for T1610T-8G-TR:

1.Submit a request within 90 days.

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

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