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STMicroelectronics T620-600W
- Part No.:
- T620-600W
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- ISOWATT220AB-3
- Datasheet:
-
T620-600W.pdf
- Description:
- TRIAC ALTERNISTOR 600V ISOWATT
- Quantity:
- Payment:
- Shipping:
Inventory:5,209
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Product details
Overview
T620-600W from STMicroelectronics is a 6 A, 600 V Snubberless™ TRIAC in ISOWATT220AB package, designed for phase-controlled AC switching in inductive loads. It delivers 50 A/µs dI/dt, 300 V/µs dV/dt, and 36 A²s I²t rating, enabling reliable commutation in rice cookers and similar household appliances without external snubbers.
For engineers reviewing the T620-600W datasheet, T620-600W pinout, T620-600W application, or T620-600W equivalent, key selection criteria include gate trigger current (20 mA max), on-state voltage (1.4 V max at 8.5 A), thermal resistance (3.4 °C/W junction-to-case), and UL E81734 compliance for safety-critical AC control designs.
Technical Context
This TRIAC uses ST's proprietary Snubberless™ technology to achieve high commutation robustness-specifically, a minimum critical rate of decrease of main current (dI/dt)c of 3.3 A/ms at 125°C without snubber circuitry. Its bidirectional conduction and quadrant I/II/III triggering support full-wave AC phase control.
The device operates across -40°C to +125°C junction temperature, with gate threshold voltage ≤1.3 V and holding current ≤35 mA. Its 600 V off-state blocking voltage (VDRM/VRRM) and 80 A non-repetitive surge current (50 Hz, 20 ms) suit mains-powered 230 V AC systems with transient overvoltage exposure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 6 A RMS on-state current at Tc = 105°C - supports continuous 230 V AC load switching up to ~1.3 kW resistive or inductive. |
| VDRM / VRRM | 600 V repetitive peak off-state voltage - ensures safe blocking during 230 V AC mains peaks (≈325 V) with margin. |
| IGT (max) | 20 mA gate trigger current - enables direct drive from low-power microcontrollers or optocouplers without amplification. |
| dV/dt (min) | 300 V/µs - prevents false triggering from fast-rising transients in noisy inductive environments. |
| I²t (tp=10ms) | 36 A²s - defines fusing limit under short-duration surges; informs fuse coordination and PCB trace sizing. |
| Rth(j-c) | 3.4 °C/W junction-to-case - determines heatsink requirement for thermal management at rated current. |
| VTM (max) | 1.4 V at ITM = 8.5 A - sets conduction loss (≈12 W max at 6 A RMS), directly impacting thermal design. |
Pinout & Package
Package: ISOWATT220AB - insulated plastic power package with metal tab for heatsinking, 2.3 g weight, screw-mount compatible (0.55 m·N recommended torque).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main Terminal 1 | Reference terminal for gate triggering; connected to load return or neutral in standard phase-control configurations. |
| A2 (MT2) | Main Terminal 2 | High-side AC line connection; carries full load current and defines voltage reference for dV/dt immunity. |
| G | Gate | Control input for triggering conduction in quadrants I, II, and III; requires ≥20 mA pulse for reliable turn-on. |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless™ commutation | Enables zero-external-snubber operation in inductive loads (e.g., motor windings, solenoids), reducing BOM count and board space. |
| UL E81734 certified | Validated for end-equipment safety compliance in North American household appliances without additional isolation components. |
| High dI/dt immunity (50 A/µs) | Ensures stable turn-on even with fast-rising gate pulses and minimizes risk of misfiring in high-noise environments. |
| Wide operating temperature | -40°C to +125°C junction range supports deployment in enclosed, thermally constrained enclosures like rice cooker bases. |
| Low VGT (≤1.3 V) | Reduces gate drive power requirements and improves compatibility with 3.3 V or 5 V logic-level controllers. |
Applications
| Rice Cooker Power Control | Induction Hob Preheat Stage |
|---|---|
Use Scenario: Precise phase-angle control of heating element power during cooking cycle, including keep-warm and boil-detection phases. IC Role / Device Role / Timing Role: Main AC power switch triggered by microcontroller PWM signal via optocoupler; handles 230 V AC, 6 A RMS load. Use Value: Snubberless operation eliminates snubber RC network, reducing component count and improving long-term reliability under thermal cycling. | Use Scenario: Low-power preheating stage before full induction activation, using resistive coil instead of high-frequency inverter. IC Role / Device Role / Timing Role: Bidirectional AC switch controlling 230 V AC to auxiliary heater; triggered in quadrants I and III for full-wave conduction. Use Value: 300 V/µs dV/dt rating prevents false triggering from EMI generated by adjacent high-frequency inverters. |
| AC Fan Speed Regulator | Smart Plug Load Switching |
Use Scenario: Variable-speed control of universal motor fans in HVAC or kitchen exhaust systems via leading-edge dimming. IC Role / Device Role / Timing Role: Phase-controlled TRIAC switch synchronized to AC zero-crossing; gate driven by microcontroller with adjustable firing angle. Use Value: 3.3 A/ms (dI/dt)c rating ensures clean turn-off during current zero-crossing, preventing commutation failure in highly inductive motor loads. | Use Scenario: Remote-controlled on/off switching of 230 V AC outlets in smart home hubs, supporting energy monitoring and scheduling. IC Role / Device Role / Timing Role: Isolated AC power switch interfaced via optocoupler; handles resistive and mixed loads up to 1.3 kW. Use Value: UL E81734 certification satisfies North American safety requirements for Class 2 power outlet modules without additional isolation barriers. |
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 |
|---|---|---|---|
| BTA06-600B | Same 6 A/600 V rating but standard (non-Snubberless) design; requires external RC snubber for inductive loads. | Higher BOM cost and board area due to mandatory snubber; less suitable for compact rice cooker PCBs. | Select only if legacy design already includes snubber and thermal margin allows higher conduction loss (VTM ≈ 1.7 V). |
| MAC6A6Y | 6 A/600 V, Snubberless, but higher IGT (50 mA max); Rth(j-c) = 4.0 °C/W vs. 3.4 °C/W. | Requires stronger gate drive; slightly lower thermal efficiency limits sustained 6 A operation at elevated case temperatures. | Prefer when existing gate driver can deliver >50 mA and heatsinking is constrained-verify derating per Fig. 2 in datasheet. |
Compared with BTA06-600B and MAC6A6Y, the T620-600W offers superior commutation robustness (3.3 A/ms dI/dtc) and lower thermal resistance, making it optimal for space-constrained, inductive-load applications where snubber elimination and thermal headroom are critical.
Availability
T620-600W is available at Aetrix Electronics and suitable for rice cooker power control, AC fan speed regulation, smart plug load switching, and induction hob preheat stages requiring stable component supply and UL-certified reliability.
Supply support for T620-600W 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, analog, MEMS, and microcontroller technologies for industrial, automotive, and consumer markets.
The T620-600W belongs to ST's Snubberless™ TRIAC product line, engineered specifically for robust, snubber-free AC phase control in thermally demanding, cost-sensitive household appliances.
FAQ
What is the maximum allowable case temperature for continuous 6 A RMS operation?
The datasheet specifies IT(RMS) = 6 A at Tc = 105°C (Fig. 2). Operation above this temperature requires linear derating: at 125°C case temperature, maximum RMS current drops to approximately 4.5 A. Heatsink design must maintain Tc ≤ 105°C under worst-case ambient and airflow conditions.
Can T620-600W be used with 115 V AC mains?
Yes - its 600 V VDRM provides ample margin for 115 V AC (peak ≈ 163 V). However, conduction losses scale with RMS current, not voltage; ensure thermal design accounts for same 6 A load current, as power dissipation remains unchanged. Gate drive requirements are identical.
Is a heat sink mandatory for 6 A operation?
Yes - with Rth(j-c) = 3.4 °C/W and typical VTM ≈ 1.2 V at 6 A RMS, power dissipation exceeds 7 W. Without a heatsink, junction temperature would exceed 125°C even at modest ambient. A minimum 10 cm² aluminum heatsink (natural convection) is recommended per ST application note AN431.
Does T620-600W support quadrant IV triggering?
No - the datasheet explicitly states electrical characteristics apply to quadrants I, II, and III only (IGT, VGT, IH, IL test conditions specify I-II-III). Quadrant IV (A1+, G−) is not characterized or guaranteed; use only in I/II/III configurations per design guidelines.
T620-600W Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- Snubberless™
- Package/Case:
- ISOWATT220AB-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- Triac Type:
- Alternistor - Snubberless
- Voltage - Off State:
- 600 V
- Current - On State (It (RMS)) (Max):
- 6 A
- Voltage - Gate Trigger (Vgt) (Max):
- 1.3 V
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 80A, 84A
- Current - Gate Trigger (Igt) (Max):
- 20 mA
- Current - Hold (Ih) (Max):
- 35 mA
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ISOWATT220AB
T620-600W FAQ
1.How can I place an order for T620-600W through Aetrix?
Please submit a Request for Quotation (RFQ) for T620-600W 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 T620-600W reliable?
The price and inventory of T620-600W are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T620-600W is usually 5 days.
3.What payment methods are accepted for T620-600W?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T620-600W transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T620-600W?
T620-600W orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T620-600W 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 T620-600W?
For technical support, including T620-600W datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T620-600W requirements.
6.How does Aetrix verify that T620-600W is sourced from the original manufacturer or authorized distributors?
All T620-600W 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 T620-600W meets industry standards.
7.What is the process for return or replacement of T620-600W?
All T620-600W units undergo pre-shipment inspection (PSI). If there is an issue with T620-600W, 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 T620-600W part is unused and in its original packaging.
Return procedure for T620-600W:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T620-600W Tags
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