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STMicroelectronics T410-700T
- Part No.:
- T410-700T
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-220-3
- Datasheet:
-
T410-700T.pdf
- Description:
- TRIAC SENS GATE 700V 4A TO220
- Quantity:
- Payment:
- Shipping:
Inventory:45
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Product details
Overview
T410-700T from STMicroelectronics is a 4 A, 700 V RMS three-quadrant logic-level triac in TO-220AB package, designed for direct gate drive from microcontrollers without external amplification. It delivers 30 A non-repetitive surge current, 50 A/µs dI/dt immunity, and 40 V/µs dV/dt hold-off at 125 °C - enabling robust commutation in universal motor and solenoid control circuits.
For engineers reviewing the T410-700T datasheet, T410-700T pinout, T410-700T application, or T410-700T equivalent, this part is selected for AC inductive load switching where low IGT (10 mA max), high dV/dt immunity (40 V/µs), and snubberless operation reduce BOM count and PCB footprint in compact home appliance power stages.
Technical Context
The T410-700T implements ST's Snubberless logic-level triac architecture with optimized gate sensitivity and high commutation robustness across all four quadrants. Its 10 mA maximum gate trigger current (IGT) and 15 mA typical latching current (IL) allow direct interface with 3.3 V/5 V GPIOs, while its 40 V/µs critical dV/dt rating at 125 °C ensures reliable turn-off under fast transient conditions.
Thermal design is supported by a 2.6 °C/W junction-to-case resistance (Rth(j-c)) and rated 4 A RMS current at 110 °C case temperature. The device operates across -40 to +125 °C junction range and maintains stable VTM ≤1.56 V and Rd ≤120 mΩ up to Tj = 125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(rms) | 4 A - Sustains continuous AC load current in motor and solenoid drivers without heatsink below 110 °C case temp |
| VDRM / VRRM | 700 V - Blocks peak line voltage up to 495 VAC RMS with 1.4× safety margin for 230 VAC mains |
| IGT (max) | 10 mA - Enables direct MCU GPIO triggering without buffer transistor or resistor network |
| dV/dt (min) | 40 V/µs at 125 °C - Prevents false turn-on during fast transients in inductive load switching |
| ITSM (50 Hz) | 30 A for 20 ms - Handles startup surges of universal motors and compressor loads |
| Rth(j-c) | 2.6 °C/W - Allows thermal modeling for heatsink sizing in TO-220AB mounting configurations |
| VTM / Rd | ≤1.56 V / ≤120 mΩ - Limits conduction loss to <1.2 W at 4 A RMS, reducing thermal stress |
Pinout & Package
TO-220AB package with insulated tab; standard 3-pin through-hole mounting; recommended torque 0.4–0.6 N·m.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main Terminal 1 | Reference terminal for gate trigger; connected to neutral or low-side AC return path |
| A2 (MT2) | Main Terminal 2 | High-side AC load connection; carries full load current and must be routed with creepage/clearance compliance |
| G | Gate | Logic-level input controlling conduction onset; requires ≥10 mA pulse for reliable turn-on in all quadrants |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless operation | Eliminates external RC snubber network in 230 VAC inductive loads, reducing component count and board area |
| Three-quadrant triggering | Enables gate control in Quadrants I, II, and III only - improves noise immunity vs. full four-quadrant devices |
| Logic-level gate sensitivity | 10 mA max IGT allows direct drive from 3.3 V/5 V microcontrollers without level-shifting circuitry |
| High commutation performance | 40 V/µs dV/dt and 50 A/µs dI/dt ratings ensure reliable turn-off in universal motor phase-control applications |
| ECOPACK® lead-free package | Meets RoHS and halogen-free requirements; UL94 V0 molding compound supports industrial safety certifications |
Applications
| Universal Motor Control | Solenoid & Valve Actuation |
|---|---|
|
Use Scenario: Speed regulation of vacuum cleaner or power drill motors using phase-angle control. IC Role / Device Role / Timing Role: Main AC power switch triggered by zero-crossing synchronized PWM pulses. Use Value: Low IGT (10 mA) and high dV/dt (40 V/µs) prevent misfiring during rapid commutation and brush noise. |
Use Scenario: On/off control of washing machine water inlet valves or dishwasher detergent dispensers. IC Role / Device Role / Timing Role: Solid-state replacement for mechanical relays in 230 VAC solenoid driver stages. Use Value: Snubberless operation eliminates snubber components, reducing cost and failure points in high-cycle valve systems. |
| Kitchen Appliance Power Tools | Dishwasher Heating Element Control |
|
Use Scenario: Soft-start and variable-speed control in food processors and blenders with universal motors. IC Role / Device Role / Timing Role: High-side AC switch modulated via microcontroller-generated firing angle delays. Use Value: 30 A surge rating handles locked-rotor currents; Rth(j-c) = 2.6 °C/W enables compact heatsinking. |
Use Scenario: Duty-cycle controlled heating element activation in energy-efficient dishwashers. IC Role / Device Role / Timing Role: Zero-crossing switched AC power controller interfaced to isolation driver IC. Use Value: 700 V blocking voltage provides margin above 230 VAC peak (325 V); VTM ≤1.56 V limits self-heating at 4 A. |
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 |
|---|---|---|---|
| BT139-700 | 4 A RMS, 700 V, 50 mA IGT - requires gate buffer transistor for MCU drive | Lacks logic-level sensitivity; unsuitable for direct GPIO interface | Select when gate drive circuitry already includes amplification and higher IGT tolerance is acceptable |
| T410-600T | Identical package and IGT (10 mA), but 600 V VDRM instead of 700 V | Lower voltage margin - insufficient for 230 VAC applications with line surges >425 V peak | Select only for 120 VAC systems or where derated voltage margin is validated per IEC 61000-4-5 |
Compared with BT139-700, T410-700T reduces system component count via logic-level gate drive; compared with T410-600T, it adds 100 V blocking headroom critical for 230 VAC surge immunity per EN 61000-4-5.
Availability
T410-700T is available at Aetrix Electronics and suitable for universal motor control, solenoid actuation, kitchen appliance power tools, and dishwasher heating element control requiring stable component supply across long-lifecycle consumer electronics programs.
Supply support for T410-700T 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 T4 series triacs are engineered specifically for snubberless AC inductive load switching in cost-sensitive, space-constrained home appliances and power tools - emphasizing gate sensitivity, commutation robustness, and thermal efficiency.
FAQ
What is the maximum junction temperature for continuous operation of T410-700T?
The T410-700T has an operating junction temperature range of -40 to +125 °C. Continuous operation at 125 °C requires maintaining case temperature ≤110 °C per Table 3, with thermal design accounting for Rth(j-c) = 2.6 °C/W and ambient conditions.
Can T410-700T replace a standard 4 A, 600 V triac in existing designs?
Yes, if the application operates at ≤230 VAC with transient margins ≤425 V peak. The 700 V VDRM provides 100 V additional blocking margin over 600 V parts, improving surge immunity - but PCB layout and heatsinking must verify thermal compliance at same RMS current.
Is a snubber circuit required when using T410-700T with universal motors?
No snubber is required for typical 230 VAC universal motor loads due to ST's Snubberless technology and 40 V/µs dV/dt rating at 125 °C. However, snubbers remain recommended for highly reactive loads exceeding 0.8 power factor or with long cable runs introducing high-frequency ringing.
What is the gate trigger current specification across temperature for T410-700T?
IGT is guaranteed ≤10 mA at 25 °C and increases to ≤25 mA at 125 °C (per Figure 8). Design must ensure gate drive sustains ≥25 mA at worst-case high temperature to guarantee turn-on in all quadrants under full load conditions.
T410-700T 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:
- 700 V
- Current - On State (It (RMS)) (Max):
- 4 A
- Voltage - Gate Trigger (Vgt) (Max):
- 1.3 V
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 30A, 31A
- 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:
- Through Hole
- Supplier Device Package:
- TO-220
T410-700T FAQ
1.How can I place an order for T410-700T through Aetrix?
Please submit a Request for Quotation (RFQ) for T410-700T 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 T410-700T reliable?
The price and inventory of T410-700T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T410-700T is usually 5 days.
3.What payment methods are accepted for T410-700T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T410-700T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T410-700T?
T410-700T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T410-700T 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 T410-700T?
For technical support, including T410-700T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T410-700T requirements.
6.How does Aetrix verify that T410-700T is sourced from the original manufacturer or authorized distributors?
All T410-700T 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 T410-700T meets industry standards.
7.What is the process for return or replacement of T410-700T?
All T410-700T units undergo pre-shipment inspection (PSI). If there is an issue with T410-700T, 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 T410-700T part is unused and in its original packaging.
Return procedure for T410-700T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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