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STMicroelectronics Z0410DF 1AA2
- Part No.:
- Z0410DF 1AA2
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-202 No Tab
- Datasheet:
-
Z0410DF 1AA2.pdf
- Description:
- TRIAC 400V 4A TO202-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,124
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Product details
Overview
Z0410DF 1AA2 from STMicroelectronics is a 4 A, 800 V RMS TRIAC in TO-202-3 package, designed for AC mains switching in microcontroller-driven home appliance controls. It features 25 mA gate trigger current (IGT), 2.0 V on-state voltage (VTM), and 20 A non-repetitive surge rating - enabling direct MCU GPIO control of electrovalves, pumps, and lamp dimmers without external driver stages.
For engineers reviewing the Z0410DF 1AA2 datasheet, Z0410DF 1AA2 pinout, Z0410DF 1AA2 application, or Z0410DF 1AA2 equivalent, key selection criteria include gate sensitivity (25 mA IGT), blocking voltage (800 V VDRM), thermal resistance (15 °C/W junction-to-lead), and compatibility with zero-crossing or phase-angle control topologies in 50/60 Hz AC systems.
Technical Context
This TRIAC operates in all four quadrants (I–IV) with guaranteed triggering at 25 mA IGT under standard test conditions (VD = 12 V, RL = 30 Ω). Its 800 V VDRM/VRRM rating supports global mains voltages including 230 VAC with margin, while dV/dt immunity of 200 V/µs (Q1) ensures robustness against line transients.
Thermal design is constrained by Rth(j–l) = 15 °C/W and Rth(j–a) = 100 °C/W, requiring heatsinking for sustained 4 A RMS operation above 30 °C ambient. The device uses standard TO-202-3 leadframe construction with ECOPACK® lead-free interconnect and tube packaging (0AA2).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 4 A - Sustained AC load current capability at 25 °C ambient with adequate heatsinking |
| VDRM / VRRM | 800 V - Peak repetitive off-state voltage; supports 230 VAC + 100% surge margin |
| IGT (Q1) | 25 mA - Gate trigger current enabling direct drive from 3.3 V/5 V MCU GPIO pins |
| VTM | 2.0 V max - On-state voltage drop at 5.5 A, defining conduction loss and self-heating |
| dV/dt (Q1) | 200 V/µs min - Immunity to false triggering from fast line transients |
| Rth(j–l) | 15 °C/W - Junction-to-lead thermal resistance; determines heatsink requirement for 4 A RMS |
| ITSM (50 Hz) | 20 A - Non-repetitive surge rating for motor startup or inrush current handling |
Pinout & Package
Package: TO-202-3 (ECOPACK®, lead-free, tube-packaged 0AA2). Standard 3-lead through-hole outline with isolated tab (A2 connected to case).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A2 | Anode 2 / Main Terminal 2 | Connected to AC line (L) or load return; electrically tied to metal tab for thermal path |
| A1 | Anode 1 / Main Terminal 1 | Connected to load or neutral; forms main current path with A2 during conduction |
| G | Gate | Control input; triggers conduction when IGT ≥ 25 mA applied relative to A1 |
Key Features
| Feature | Design Value |
|---|---|
| Quadrant IV operation | Enables phase-control dimming with negative gate pulses relative to A1, reducing EMI vs. Q1-only triggering |
| 25 mA IGT sensitivity | Eliminates need for discrete gate driver transistors when interfacing with low-current MCU outputs |
| 200 V/µs dV/dt immunity | Prevents spurious turn-on during triac commutation or line noise events in noisy industrial environments |
| ECOPACK® compliance | Lead-free second-level interconnect meets RoHS and JEDEC JESD97 marking requirements |
| TO-202-3 mechanical footprint | Standardized 3-pin through-hole layout compatible with legacy PCB tooling and automated insertion |
Applications
| Electrovalve Control | Fan Speed Regulation |
|---|---|
Use Scenario: On/off sequencing of water/gas solenoid valves in washing machines and dishwashers. IC Role / Device Role / Timing Role: Bidirectional AC switch replacing mechanical relays; triggered once per cycle for full-wave conduction. Use Value: 4 A IT(RMS) and 20 A ITSM handle valve coil inrush; 25 mA IGT allows direct PIC/ARM GPIO control without level-shifting. | Use Scenario: Phase-angle controlled speed adjustment of shaded-pole or universal motors in HVAC blowers. IC Role / Device Role / Timing Role: Main power switch in leading-edge phase-cut topology; gated synchronously with zero-crossing detection. Use Value: 200 V/µs dV/dt rating prevents false triggering during rapid voltage transitions at firing angle edges. |
| Lamp Dimming | Door Lock Actuation |
Use Scenario: Mains-powered incandescent/halogen lamp brightness control in smart home wall switches. IC Role / Device Role / Timing Role: AC power modulator in trailing-edge dimmer circuits; gated after zero-crossing point. Use Value: 800 V VDRM ensures safe operation across 120–240 VAC inputs; TO-202-3 package enables compact board layout. | Use Scenario: Momentary energization of electromagnetic door locks in access control panels. IC Role / Device Role / Timing Role: High-reliability AC switch replacing electromechanical latching relays. Use Value: 2.0 V VTM limits power dissipation during 100–500 ms lock engagement; 15 °C/W Rth(j–l) supports short-duty-cycle thermal profile. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TRIAC switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BT139-800R | 800 V VDRM, 16 A IT(RMS), 50 mA IGT, TO-220 package | Higher current rating but requires gate driver due to higher IGT; larger footprint | Select when >4 A RMS load current or forced-air cooling is available |
| MAC97A8 | 600 V VDRM, 0.8 A IT(RMS), 10 mA IGT, TO-92 package | Lower voltage/current rating; suited only for signal-level or low-power loads | Select only for sub-1 A resistive loads where space constraints prohibit TO-202-3 |
Compared with BT139-800R and MAC97A8, Z0410DF 1AA2 uniquely balances 4 A RMS capability, 25 mA gate sensitivity, and TO-202-3 form factor - making it optimal for cost-sensitive, MCU-driven 230 VAC appliance controls where driverless operation and board space are critical.
Availability
Z0410DF 1AA2 is available at Aetrix Electronics and suitable for home appliance control, fan speed regulation, lamp dimming, and door lock actuation requiring stable component supply and long-term manufacturing continuity.
Supply support for Z0410DF 1AA2 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.
Z0410DF 1AA2 belongs to the Z04 Standard TRIAC product line, engineered specifically for cost-effective, microcontroller-compatible AC switching in white goods and building automation systems.
FAQ
What is the maximum junction temperature for continuous operation?
The Z0410DF 1AA2 has an operating junction temperature range of –40 °C to +125 °C. Continuous operation at 4 A RMS requires maintaining Tj ≤ 125 °C via appropriate heatsinking - achievable with Rth(j–l) = 15 °C/W and ≤ 30 °C ambient when using a minimal clip-on heatsink.
Can this TRIAC be triggered directly from a 3.3 V microcontroller GPIO?
Yes - with 25 mA IGT (Q1), the Z0410DF 1AA2 can be driven directly from most 3.3 V or 5 V MCU GPIO pins using a series resistor (e.g., 150 Ω for 3.3 V, 220 Ω for 5 V) to limit gate current to ≥25 mA while staying within GPIO sink/source limits.
Is a snubber circuit required for inductive loads?
A snubber (RC network across A1–A2) is recommended for inductive loads like motors or solenoids to suppress dV/dt spikes during turn-off. While the device's 200 V/µs dV/dt rating provides margin, snubbers improve reliability in high-L di/dt applications such as pump or valve drivers.
What does the '1AA2' suffix indicate in the order code?
The '1AA2' denotes tube packaging (0AA2 delivery mode), per ST's ordering scheme. It specifies bulk tube format (50 pcs/tube), ECOPACK® lead-free finish, and TO-202-3 package - distinct from tape-and-reel or tray options used in automated assembly.
Z0410DF 1AA2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-202 No Tab
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Triac Type:
- Standard
- Voltage - Off State:
- 400 V
- Current - On State (It (RMS)) (Max):
- 4 A
- Voltage - Gate Trigger (Vgt) (Max):
- 1.3 V
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 20A, 21A
- Current - Gate Trigger (Igt) (Max):
- 25 mA
- Current - Hold (Ih) (Max):
- 25 mA
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-202-3
Z0410DF 1AA2 FAQ
1.How can I place an order for Z0410DF 1AA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for Z0410DF 1AA2 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 Z0410DF 1AA2 reliable?
The price and inventory of Z0410DF 1AA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for Z0410DF 1AA2 is usually 5 days.
3.What payment methods are accepted for Z0410DF 1AA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for Z0410DF 1AA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for Z0410DF 1AA2?
Z0410DF 1AA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your Z0410DF 1AA2 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 Z0410DF 1AA2?
For technical support, including Z0410DF 1AA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your Z0410DF 1AA2 requirements.
6.How does Aetrix verify that Z0410DF 1AA2 is sourced from the original manufacturer or authorized distributors?
All Z0410DF 1AA2 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 Z0410DF 1AA2 meets industry standards.
7.What is the process for return or replacement of Z0410DF 1AA2?
All Z0410DF 1AA2 units undergo pre-shipment inspection (PSI). If there is an issue with Z0410DF 1AA2, 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 Z0410DF 1AA2 part is unused and in its original packaging.
Return procedure for Z0410DF 1AA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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