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STMicroelectronics T1610T-8I
- Part No.:
- T1610T-8I
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-220-3
- Datasheet:
-
T1610T-8I.pdf
- Description:
- TRIAC SENS GATE 800V 16A TO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:700
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Product details
Overview
T1610T-8I from STMicroelectronics is a logic-level, three-quadrant triac rated for 16 A RMS on-state current, 600 V repetitive peak off-state voltage (at Tj = 150 °C), and 10 mA maximum gate trigger current. It features ceramic-insulated TO-220AB packaging with 2500 Vrms isolation, UL certification (E81734), and direct microcontroller drivability for AC line switching in home appliances and industrial controls.
For engineers reviewing the T1610T-8I datasheet, T1610T-8I pinout, T1610T-8I application, or T1610T-8I equivalent, key selection criteria include gate sensitivity (≤10 mA IGT), high dV/dt immunity (≥100 V/µs at 125 °C), insulated package rating, thermal resistance (Rth(j-c) = 2.1 °C/W), and tri-quadrant commutation capability.
Technical Context
The T1610T-8I operates across quadrants I, II, and III, enabling bidirectional conduction without requiring external polarity management. Its logic-level gate (VGT ≤ 1.3 V) allows direct drive from 3.3 V or 5 V microcontrollers, eliminating need for discrete gate drivers.
It delivers robust static and dynamic commutation performance, with minimum dV/dt immunity of 100 V/µs at 125 °C and critical rate of decrease of current (dI/dt)c ≥ 9 A/ms under specified conditions. The device supports both on/off switching and phase-angle control in resistive and inductive AC loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 16 A at Tc = 108 °C - supports continuous load switching up to 3.5 kW @ 230 VAC |
| VDRM / VRRM | 600 V at Tj = 150 °C - ensures reliable blocking during mains transients in universal input designs |
| IGT (max) | 10 mA - enables direct drive from low-power MCU GPIOs without buffer stages |
| dV/dt (min) | 100 V/µs at Tj = 125 °C - prevents false triggering in noisy EMI environments |
| Rth(j-c) | 2.1 °C/W - allows efficient heat transfer to heatsink for sustained 16 A operation |
| Vins (rms) | 2500 V - provides reinforced insulation barrier between main terminals and heatsink |
| ITSM | 120 A (50 Hz, 20 ms) - withstands motor startup surges and capacitor inrush currents |
Pinout & Package
Package: TO-220AB insulated (ceramic baseplate), RoHS-compliant, UL certified (E81734), 2.3 g weight, 0.4–0.6 N·m mounting torque recommendation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main Terminal 1 | Reference terminal for gate trigger; connects to load return or neutral side in AC circuits |
| A2 (MT2) | Main Terminal 2 | High-side AC line connection; carries full load current in both half-cycles |
| G | Gate | Logic-level control input; triggers conduction when referenced to A1 with ≥0.5 mA IGT |
Key Features
| Feature | Design Value |
|---|---|
| Three-quadrant operation | Enables gate triggering in quadrants I, II, and III - eliminates need for snubber networks in many inductive loads |
| Logic-level gate drive | VGT ≤ 1.3 V and IGT ≤ 10 mA - compatible with standard 3.3 V/5 V microcontrollers without level-shifting |
| Ceramic-insulated TO-220AB | 2500 Vrms isolation - permits safe mounting on grounded heatsinks in Class I appliances |
| High dV/dt immunity | 100 V/µs minimum at 125 °C - suppresses false turn-on from fast-rising line noise or switching transients |
| UL certification | E81734 file reference - satisfies safety agency requirements for end-equipment approval in North America |
Applications
| Fan Speed Control | Pump Motor Switching |
|---|---|
|
Use Scenario: Variable-speed AC induction fan in HVAC or kitchen hood systems using phase-angle dimming. IC Role / Device Role / Timing Role: Triac-based AC power controller regulating RMS voltage delivered to fan winding. Use Value: Enables smooth speed adjustment with <10 mA gate drive, eliminating need for optocoupler + driver IC stack. |
Use Scenario: On/off cycling of 120 VAC water pump in dishwasher or washing machine. IC Role / Device Role / Timing Role: Zero-crossing–compatible switching element handling 10 A inductive load surges. Use Value: Direct MCU control reduces BOM count; 2500 Vrms isolation meets IEC 60335 creepage requirements. |
| Heater Power Regulation | Overvoltage Crowbar Protection |
|
Use Scenario: Duty-cycle–modulated heating element in electric kettle or coffee maker. IC Role / Device Role / Timing Role: High-current AC switch toggling 16 A resistive load at line frequency. Use Value: Rth(j-c) = 2.1 °C/W enables compact heatsinking; 120 A surge rating absorbs repeated turn-on spikes. |
Use Scenario: Fast-acting crowbar circuit clamping 230 VAC line to ground during overvoltage events. IC Role / Device Role / Timing Role: Triggered fail-safe shunt device activated by voltage monitor comparator output. Use Value: Sub-2 µs tGT ensures rapid response; 800 V non-repetitive surge rating handles transient overvoltages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triac switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTA16-600BRG | 600 V VDRM, 16 A IT(RMS), but requires 35 mA IGT - not logic-level | Needs gate driver stage for MCU interface; higher gate power dissipation | Select when cost priority outweighs drive simplicity and board space constraints |
| BTB16-600CW | 600 V VDRM, 16 A IT(RMS), 15 mA IGT, TO-220AB non-insulated package | Lacks 2500 Vrms isolation - requires insulated mounting hardware or PCB spacing | Select only in non-safety-critical, double-insulated designs where heatsink grounding is controlled |
Compared with BTA16-600BRG and BTB16-600CW, T1610T-8I uniquely combines logic-level drive, triple-quadrant operation, and certified 2500 Vrms insulation - reducing system-level component count and simplifying safety compliance in Class I consumer appliances.
Availability
T1610T-8I is available at Aetrix Electronics and suitable for home appliance control, industrial AC load switching, and lighting dimming applications requiring stable component supply and long-term manufacturability.
Supply support for T1610T-8I 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, mixed-signal, power, and microcontroller solutions for industrial, automotive, and consumer markets.
The T1610T-8I belongs to ST's high-reliability power switching triac family, engineered specifically for cost-sensitive, safety-certified AC control in white goods and building automation systems.
FAQ
What is the maximum junction temperature for continuous operation?
The T1610T-8I has an operating junction temperature range of –40 °C to +150 °C. For continuous 16 A RMS operation, case temperature must be held at or below 108 °C per absolute maximum ratings. Thermal design must account for Rth(j-c) = 2.1 °C/W and ambient conditions to avoid exceeding Tj = 150 °C.
Can T1610T-8I be used in zero-crossing switching applications?
Yes - its three-quadrant architecture and low IGT enable reliable triggering near zero-crossing points. However, it does not integrate zero-crossing detection; external timing circuitry or MCU-controlled phase delay is required to achieve true zero-voltage turn-on.
Is heatsinking mandatory for 16 A operation?
Yes. At 16 A RMS and Tc = 108 °C, junction-to-case thermal resistance (2.1 °C/W) implies ~34 W power dissipation. Without a heatsink, ambient convection alone (Rth(j-a) = 60 °C/W) would raise Tj beyond 150 °C within seconds. A properly sized heatsink is essential for sustained rated current.
Does the 2500 Vrms insulation rating apply to all pins?
No - the 2500 Vrms rating applies specifically to the isolation barrier between the main terminals (A1/A2) and the metal tab/heatsink interface. Gate-to-tab and gate-to-main-terminal isolation are not covered by this rating and must be verified separately per application safety standards.
T1610T-8I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- 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:
- Through Hole
- Supplier Device Package:
- TO-220AB Insulated
T1610T-8I FAQ
1.How can I place an order for T1610T-8I through Aetrix?
Please submit a Request for Quotation (RFQ) for T1610T-8I 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-8I reliable?
The price and inventory of T1610T-8I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T1610T-8I is usually 5 days.
3.What payment methods are accepted for T1610T-8I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T1610T-8I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T1610T-8I?
T1610T-8I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T1610T-8I 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-8I?
For technical support, including T1610T-8I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T1610T-8I requirements.
6.How does Aetrix verify that T1610T-8I is sourced from the original manufacturer or authorized distributors?
All T1610T-8I 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-8I meets industry standards.
7.What is the process for return or replacement of T1610T-8I?
All T1610T-8I units undergo pre-shipment inspection (PSI). If there is an issue with T1610T-8I, 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-8I part is unused and in its original packaging.
Return procedure for T1610T-8I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T1610T-8I Tags
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