STMicroelectronics T410-600B
- Part No.:
- T410-600B
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
T410-600B.pdf
- Description:
- TRIAC SENS GATE 600V 4A DPAK
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
T410-600B from STMicroelectronics is a 4 A, 600 V three-quadrant logic-level triac in DPAK package, designed for snubberless AC switching in inductive loads with IGT ≤ 10 mA, VGT ≤ 1.3 V, and dV/dt ≥ 40 V/µs at 125 °C. It enables direct microcontroller gate drive in universal motor control, electrovalves, and kitchen appliances.
For engineers reviewing the T410-600B datasheet, T410-600B pinout, T410-600B application, or T410-600B equivalent, key selection criteria include commutation robustness (dI/dt = 50 A/µs), thermal resistance (Rth(j-c) = 2.6 °C/W), gate sensitivity (IGT max = 10 mA), and snubberless operation on inductive AC loads up to 4 A RMS.
Technical Context
The T410-600B uses ST's Snubberless logic-level triac architecture, supporting reliable triggering in quadrants I, II, and III without external snubbers. Its low gate trigger current (≤10 mA) and high critical dV/dt (≥40 V/µs at 125 °C) ensure stable turn-on under noisy AC line conditions.
It delivers 4 A RMS on-state current with VTM ≤ 1.56 V at 25 °C and dynamic resistance Rd ≤ 120 mΩ at 125 °C, enabling efficient power handling in compact PCB layouts. Thermal performance is optimized via low junction-to-case resistance (2.6 °C/W) in the DPAK package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(rms) | 4 A - Sustained AC load current capability without derating at Tc = 110 °C |
| VDRM / VRRM | 600 V - Peak repetitive off-state voltage rating for 230 VAC mains with safety margin |
| IGT (max) | 10 mA - Maximum gate trigger current required for reliable turn-on across all quadrants |
| dV/dt (min) | 40 V/µs at 125 °C - Immunity to false triggering from fast voltage transients on inductive loads |
| Rth(j-c) | 2.6 °C/W - Enables direct heatsinking to PCB copper or small external heatsink for thermal management |
| IL (max) | 25 mA - Latching current threshold defining minimum load current needed to sustain conduction after trigger |
| IH (max) | 15 mA - Holding current threshold below which device turns off naturally during AC zero-crossing |
Pinout & Package
DPAK (TO-252) package: surface-mount, single-die triac with isolated tab (A2), standard 3-pin footprint per Figure 13 and Table 7. Tab is electrically connected to MT2 (A2) terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main Terminal 1 | Reference terminal for gate trigger; connects to load return path in phase-control circuits |
| A2 (MT2) | Main Terminal 2 | High-side AC line connection; electrically tied to metal tab for thermal conduction |
| G | Gate | Logic-level input controlling conduction onset; compatible with 3.3 V/5 V MCU GPIO without buffer |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless operation | Eliminates need for RC snubber network on inductive loads, reducing BOM count and board space |
| Three-quadrant triggering | Enables gate control in quadrants I, II, and III-supporting both leading- and trailing-edge phase control |
| Logic-level gate drive | IGT ≤ 10 mA allows direct interface with microcontrollers, optocouplers, or low-power drivers |
| High commutation robustness | (dI/dt)c ≥ 2.7 A/ms at 125 °C ensures reliable turn-off during rapid current decay in motor windings |
| Halogen-free, RoHS-compliant | Meets UL94 V0 flammability rating and ECOPACK® environmental standards for industrial use |
Applications
| Universal Motor Control | Electrovalve Actuation |
|---|---|
Use Scenario: Speed regulation of vacuum cleaner or power drill motors using phase-angle control on 230 VAC supply. IC Role / Device Role / Timing Role: Main AC power switch triggered by zero-crossing synchronized PWM signal to modulate RMS voltage. Use Value: Snubberless design avoids snubber losses and component stress; 4 A rating supports continuous 600 W motor loads. | Use Scenario: On/off control of solenoid valves in washing machines or HVAC systems with 50/60 Hz AC excitation. IC Role / Device Role / Timing Role: Bidirectional AC switch replacing mechanical relay; gated at zero-crossing to minimize EMI and contact arcing. Use Value: 10 mA IGT enables direct drive from MCU GPIO; 600 V rating covers surge transients in industrial AC lines. |
| Kitchen Appliance Heating | Power Tool Safety Interlock |
Use Scenario: Power modulation for heating elements in toaster ovens or induction cooktop auxiliary circuits. IC Role / Device Role / Timing Role: Phase-controlled AC switch regulating average power delivered to resistive/heating loads. Use Value: VTM ≤ 1.56 V minimizes conduction loss and self-heating; Rth(j-c) = 2.6 °C/W supports thermal stability on FR4 PCB. | Use Scenario: Emergency cutoff in angle grinders or saws where motor must de-energize within <100 ms upon trigger release. IC Role / Device Role / Timing Role: Fail-safe AC disconnect switch controlled by safety MCU monitoring mechanical trigger state. Use Value: IH = 15 mA ensures clean turn-off at AC zero-crossing; dV/dt ≥ 40 V/µs prevents false re-triggering during transient events. |
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 |
|---|---|---|---|
| ST T410-600T | Same electrical specs, TO-220AB package with insulated tab and higher thermal mass (Rth(j-c) = 2.6 °C/W same, but Rth(j-a) = 60 °C/W vs DPAK's 70 °C/W) | Better suited for through-hole mounting with mechanical retention and screw-down heatsinking | Select when board layout requires through-hole assembly or higher mechanical robustness in vibration-prone environments |
| Littelfuse Q4004L4 | 4 A/400 V triac; lower VDRM (400 V), higher IGT (35 mA), no snubberless rating; TO-220 package | Requires external snubber for inductive loads; not suitable for 230 VAC mains without derating | Only consider for 115 VAC or resistive loads where cost is primary and snubber components acceptable |
Compared with T410-600T, the DPAK version offers superior PCB integration and automated assembly compatibility; versus Q4004L4, it provides higher voltage margin, lower gate drive demand, and verified snubberless operation essential for motor and valve reliability.
Availability
T410-600B is available at Aetrix Electronics and suitable for universal motor control, electrovalve actuation, and kitchen appliance heating requiring stable component supply across industrial production cycles.
Supply support for T410-600B 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 automotive, industrial, and consumer markets.
The T4 series belongs to ST's high-reliability AC power switching product line, engineered specifically for snubberless, logic-level triac operation in demanding inductive AC load applications including home appliances and industrial controls.
FAQ
Is T410-600B compatible with 230 VAC mains operation?
Yes. With 600 V VDRM/VRRM rating and 4 A RMS current capability, T410-600B supports 230 VAC nominal systems with sufficient margin for line surges and transients per IEC 61000-4-5. Its snubberless design ensures stable commutation under inductive load conditions typical in this voltage class.
What is the maximum junction temperature and how does it affect lifetime?
The T410-600B has a maximum operating junction temperature of +125 °C. Exceeding this limit risks thermal runaway and premature failure. At Tj = 125 °C, parameters like VGT (+1.3 V), IL (+25 mA), and dV/dt (−40 V/µs) remain guaranteed. Derating IT(rms) per Figure 2 is required above Tc = 110 °C to maintain reliability.
Can T410-600B replace a mechanical relay in AC load switching?
Yes - for loads ≤ 4 A RMS and ≤ 600 V peak, T410-600B provides silent, bounce-free, and wear-free switching with zero-crossing control. Unlike relays, it eliminates contact arcing and EMI, but requires proper heat sinking and gate drive isolation (e.g., optocoupler) for safety-critical implementations.
Does T410-600B require a heatsink in DPAK package?
At full 4 A RMS load with ambient temperature > 50 °C or limited PCB copper area (< 5 cm²), a heatsink or thermal pad is recommended. The DPAK's Rth(j-c) = 2.6 °C/W assumes direct thermal coupling to ≥ 5 cm² of 35 µm copper; without it, junction temperature rise exceeds safe limits per Figure 3 and Table 6.
T410-600B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tube
- Product Status:
- Active
- Triac Type:
- Logic - Sensitive Gate
- Voltage - Off State:
- 600 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:
- Surface Mount
- Supplier Device Package:
- DPAK
T410-600B FAQ
1.How can I place an order for T410-600B through Aetrix?
Please submit a Request for Quotation (RFQ) for T410-600B 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 T410-600B reliable?
The price and inventory of T410-600B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T410-600B is usually 5 days.
3.What payment methods are accepted for T410-600B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T410-600B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T410-600B?
T410-600B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T410-600B 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 T410-600B?
For technical support, including T410-600B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T410-600B requirements.
6.How does Aetrix verify that T410-600B is sourced from the original manufacturer or authorized distributors?
All T410-600B 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 T410-600B meets industry standards.
7.What is the process for return or replacement of T410-600B?
All T410-600B units undergo pre-shipment inspection (PSI). If there is an issue with T410-600B, 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 T410-600B part is unused and in its original packaging.
Return procedure for T410-600B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T410-600B Tags

-
Z0103NN5AA4
STMicroelectronics

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Z0107MNT1G
Littelfuse Inc.

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Z0103MNT1G
Littelfuse Inc.
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T405-800B-TR
STMicroelectronics
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T835-600B-TR
STMicroelectronics
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2N6073BG
Littelfuse Inc.
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2N6075BG
Littelfuse Inc.
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BTA08-600CWRG
STMicroelectronics

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T835H-6G-TR
STMicroelectronics
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BTA16-800BRG
STMicroelectronics

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T1210-800G-TR
STMicroelectronics

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MAC4DHMT4G
Littelfuse Inc.
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