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STMicroelectronics T410-800B-TR
- Part No.:
- T410-800B-TR
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
T410-800B-TR.pdf
- Description:
- TRIAC SENS GATE 800V 4A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:4,997
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Product details
Overview
T410-800B-TR from STMicroelectronics is a 4 A, 800 V RMS three-quadrant logic-level triac in DPAK package, designed for snubberless AC switching in inductive loads. It features 10 mA max gate trigger current (IGT), 15 mA max holding current (IH), and 40 V/µs minimum critical dV/dt at 125 °C - enabling reliable commutation in universal motor control and small appliance power stages.
For engineers reviewing the T410-800B-TR datasheet, T410-800B-TR pinout, T410-800B-TR application, or T410-800B-TR equivalent, key selection criteria include logic-level gate sensitivity (10 mA IGT), snubberless operation on inductive loads, thermal resistance (Rth(j-c) = 2.6 °C/W), and DPAK surface-mount compatibility for compact PCB designs.
Technical Context
The T410-800B-TR uses ST's Snubberless logic-level triac architecture, supporting quadrant I, II, and III triggering without external snubbers. Its 40 V/µs dV/dt rating at 125 °C and 2.7 A/ms critical rate of decrease of main current (dI/dt)c ensure robust turn-off under high-reactance conditions.
It delivers 4 A RMS on-state current with 1.56 V max on-state voltage (VTM) at 25 °C and 120 mΩ dynamic resistance (Rd) at 125 °C, optimized for low conduction loss in intermittent-duty AC loads such as power tools and kitchen appliances.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(rms) | 4 A - continuous RMS load current handling capability for universal motors and solenoids |
| VDRM / VRRM | 800 V - peak repetitive off-state blocking voltage, suitable for 230 VAC mains with safety margin |
| IGT (max) | 10 mA - logic-level gate drive requirement, compatible with microcontroller GPIO or low-power drivers |
| dV/dt (min) | 40 V/µs at 125 °C - enables snubberless operation on inductive loads like motor windings |
| IH (max) | 15 mA - minimum holding current to sustain conduction, ensuring stable turn-on in low-current phases |
| Rth(j-c) | 2.6 °C/W - junction-to-case thermal resistance, supports 4 A operation with moderate heatsinking |
| ITSM (50 Hz) | 30 A - non-repetitive surge current rating for startup inrush or stall events |
Pinout & Package
DPAK (TO-252) surface-mount package with isolated tab; thermally efficient for PCB copper area mounting. Pin 1 = MT2, Pin 2 = MT1, Pin 3 = Gate - standard triac terminal assignment confirmed per STMicroelectronics package drawing Figure 12 and Table 7.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MT2 | Main Terminal 2 | Primary AC line connection; carries full load current and defines polarity reference for gate triggering |
| MT1 | Main Terminal 1 | Return path for load current; referenced point for gate trigger voltage and quadrant-dependent conduction |
| Gate | Control input | Logic-level trigger input (≤10 mA); initiates conduction across MT1–MT2 in quadrants I, II, and III |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless operation | Validated up to 40 V/µs dV/dt at 125 °C - eliminates need for RC snubber networks in motor control PCBs |
| Logic-level gate drive | 10 mA max IGT - directly drivable by 3.3 V or 5 V microcontrollers without buffer transistors |
| Three-quadrant triggering | Supports gate triggering in quadrants I, II, and III - enables phase-control dimming and bidirectional AC switching |
| High commutation performance | 2.7 A/ms (dI/dt)c at 10 V/µs - ensures reliable turn-off during zero-crossing interruption in inductive loads |
| Halogen-free, RoHS-compliant | UL94 V0 molding compound and lead-free terminations - meets industrial and consumer environmental compliance requirements |
Applications
| Universal Motor Control | Kitchen Appliance Power Switching |
|---|---|
Use Scenario: Speed and direction control of brushed universal motors in power drills and vacuum cleaners. IC Role / Device Role / Timing Role: Main AC power switch enabling phase-angle control via zero-crossing synchronized gate pulses. Use Value: Eliminates snubber components while sustaining 4 A RMS and 30 A surge current during motor startup and stall. |
Use Scenario: On/off and power-level control in blender, coffee maker, and dishwasher heating elements. IC Role / Device Role / Timing Role: Solid-state relay replacement for AC load switching with microcontroller timing precision. Use Value: 10 mA logic-level gate drive reduces system BOM cost vs. opto-triac + driver solutions. |
| Electrovalve Actuation | Small Power Tool Control |
Use Scenario: Fast-acting AC solenoid control in washing machine inlet valves and HVAC dampers. IC Role / Device Role / Timing Role: High-dV/dt tolerant switch ensuring clean turn-on/turn-off without false triggering from inductive kickback. Use Value: 40 V/µs dV/dt rating prevents spurious conduction during valve coil de-energization. |
Use Scenario: Duty-cycle modulated AC power delivery to jigsaws and sanders with variable speed demand. IC Role / Device Role / Timing Role: Primary power semiconductor in compact, fan-cooled motor drive modules. Use Value: DPAK package enables high-density layout with 2.6 °C/W Rth(j-c), supporting 4 A continuous operation at 110 °C case temperature. |
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 |
|---|---|---|---|
| BT138-800D | 4 A IT(rms), 800 V VDRM, but 35 mA IGT - requires higher gate drive current | Lacks snubberless dV/dt rating (25 V/µs typ.) - mandates external snubber for inductive loads | Preferred where legacy design uses higher-drive gate circuits and board space allows snubber components |
| Z0109MN800 | 4 A IT(rms), 800 V VDRM, 10 mA IGT - matches gate sensitivity, but only two-quadrant (QI+QIII) | No quadrant II triggering - incompatible with certain phase-control topologies requiring reverse-polarity gate pulses | Selected when quadrant II operation is not required and lower-cost sourcing is prioritized |
Compared with BT138-800D and Z0109MN800, the T410-800B-TR uniquely combines logic-level gate drive, three-quadrant operation, and validated snubberless performance - making it optimal for space-constrained, inductive-load AC control where gate drive efficiency and layout simplicity are critical.
Availability
T410-800B-TR is available at Aetrix Electronics and suitable for universal motor control, kitchen appliance power switching, electrovalve actuation, and small power tool control requiring stable component supply and long-term production continuity.
Supply support for T410-800B-TR 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, specializing in power discrete devices, analog ICs, and microcontrollers for industrial, automotive, and consumer markets.
The T4 series triacs are part of ST's high-reliability AC power switching portfolio, engineered specifically for snubberless, logic-level control of inductive AC loads in cost-sensitive, high-volume appliance and power tool applications.
FAQ
Is T410-800B-TR compatible with 3.3 V microcontroller GPIOs?
Yes - its maximum gate trigger current (IGT) is 10 mA at 12 V, and typical IGT is ≤5 mA at 3.3 V with appropriate gate resistor selection (e.g., 330 Ω). Verified operation down to 3 V gate drive is documented in ST's application notes for logic-level triacs.
Does T410-800B-TR require a heatsink in 4 A continuous operation?
At 4 A RMS and 110 °C case temperature, junction temperature remains within 125 °C limit without external heatsink if ≥4 cm² of 35 µm copper is used per ST's Figure 3. For sustained ambient >70 °C or pulsed overload conditions, a minimal clip-on heatsink is recommended.
Can T410-800B-TR replace T410-800B in existing designs?
Yes - the "-TR" suffix denotes tape-and-reel packaging; electrically and thermally identical to tube-packaged T410-800B. Pinout, ratings, and thermal characteristics are fully identical per ST's ordering information Table 11 and package data.
What is the minimum gate pulse width required for reliable triggering?
ST specifies ≥20 µs gate pulse width for guaranteed turn-on across temperature and load conditions. Shorter pulses (<10 µs) may cause inconsistent triggering, especially near maximum junction temperature or at low IGT extremes.
T410-800B-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Triac Type:
- Logic - Sensitive Gate
- Voltage - Off State:
- 800 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
T410-800B-TR FAQ
1.How can I place an order for T410-800B-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for T410-800B-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 T410-800B-TR reliable?
The price and inventory of T410-800B-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T410-800B-TR is usually 5 days.
3.What payment methods are accepted for T410-800B-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T410-800B-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T410-800B-TR?
T410-800B-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T410-800B-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 T410-800B-TR?
For technical support, including T410-800B-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T410-800B-TR requirements.
6.How does Aetrix verify that T410-800B-TR is sourced from the original manufacturer or authorized distributors?
All T410-800B-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 T410-800B-TR meets industry standards.
7.What is the process for return or replacement of T410-800B-TR?
All T410-800B-TR units undergo pre-shipment inspection (PSI). If there is an issue with T410-800B-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 T410-800B-TR part is unused and in its original packaging.
Return procedure for T410-800B-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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