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STMicroelectronics Z0109MN 5AA4
- Part No.:
- Z0109MN 5AA4
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
Z0109MN 5AA4.pdf
- Description:
- TRIAC SENS GATE 600V 1A SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:9,479
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Product details
Overview
Z0109MN 5AA4 from STMicroelectronics is a 1 A, 800 V RMS-rated sensitive-gate triac in SOT-223 package, designed for AC phase-control switching in microcontroller-driven home appliance loads including electrovalves, pumps, and lamp dimmers. It features 10 mA max gate trigger current (IGT), 1.6 V max on-state voltage (VT), and 400 mΩ dynamic resistance at 125 °C.
For engineers reviewing the Z0109MN 5AA4 datasheet, Z0109MN 5AA4 pinout, Z0109MN 5AA4 application, or Z0109MN 5AA4 equivalent, key selection criteria include dV/dt immunity (≥50 V/µs at Tj = 110 °C), critical dI/dt rating (≥2 V/µs), thermal resistance (Rth(j-t) = 25 °C/W), and compatibility with direct GPIO drive from 3.3 V/5 V MCUs without external amplification.
Technical Context
This triac operates in all four quadrants with symmetrical triggering characteristics, enabling bidirectional AC conduction without polarity constraints. Its gate sensitivity (10 mA IGT max) allows reliable turn-on from low-power MCU outputs while maintaining robust noise immunity via guaranteed VGD ≥ 0.2 V at 125 °C.
The device uses a planar passivated silicon structure optimized for high dV/dt (≥50 V/µs) and dI/dt (≥2 V/µs) performance under hot junction conditions (Tj = 110–125 °C), ensuring stable commutation in inductive fan motor and solenoid control circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 1 A - Continuous AC load current handling capability at Ttab = 90 °C in SOT-223 package |
| VDRM/VRRM | 800 V - Peak repetitive off-state blocking voltage in both directions, suitable for 230 VAC mains with safety margin |
| IGT (Q1) | 10 mA max - Gate trigger current threshold enabling direct drive from standard MCU GPIO pins |
| dV/dt (min) | 50 V/µs at Tj = 110 °C - Immunity to false triggering from fast-rising line transients |
| Rth(j-t) | 25 °C/W - Junction-to-tab thermal resistance defining heatsink requirement for 1 A continuous operation |
| VT (max) | 1.60 V at 25 °C - On-state voltage drop determining conduction loss and self-heating at full load |
| IL (max) | 25 mA - Latching current ensuring reliable turn-on even after brief gate pulse |
Pinout & Package
SOT-223 package: surface-mount, thermally enhanced plastic case with exposed tab (pin 4) for direct PCB copper thermal coupling. Tab is electrically connected to MT2 (A2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main Terminal 1 | Reference terminal for gate trigger; current flows between A1 and A2 during conduction |
| A2 (MT2) | Main Terminal 2 | Connected internally to exposed tab; primary current path and thermal interface point |
| G | Gate | Control input; negative or positive pulse relative to A1 initiates conduction in Q1/Q3 |
| Tab | Thermal & Electrical Node | Internally tied to A2; must be soldered to ≥5 cm² copper area for rated IT(RMS) = 1 A |
Key Features
| Feature | Design Value |
|---|---|
| Quadrant IV triggering support | Guaranteed IGT ≤ 25 mA and VGT ≤ 1.3 V enables reliable turn-on with A2 negative relative to A1 |
| High dV/dt immunity | 50 V/µs minimum at 110 °C prevents false triggering from EMI or line spikes in noisy appliance environments |
| Low VT and Rd | 1.6 V VT and 400 mΩ Rd at 125 °C reduce power dissipation to <1.6 W at 1 A RMS, easing thermal design |
| ECOPACK® compliance | Lead-free plating and halogen-free molding compound meet RoHS and REACH environmental requirements |
Applications
| Electrovalve Control | Fan Speed Regulation |
|---|---|
Use Scenario: Precise on/off sequencing of 230 VAC water/gas valves in washing machines and dishwashers. IC Role / Device Role / Timing Role: Main AC power switch triggered by MCU PWM or logic-level signal; handles inrush and steady-state current. Use Value: 10 mA IGT ensures reliable activation from 3.3 V MCU outputs; 800 V VDRM accommodates 230 VAC + surge margin. | Use Scenario: Phase-angle dimming of universal motor fans in HVAC and kitchen appliances. IC Role / Device Role / Timing Role: Bidirectional AC switch synchronized to zero-crossing detection for smooth speed control. Use Value: 50 V/µs dV/dt rating prevents misfiring during rapid voltage transitions in phase-cut waveforms. |
| Pump Motor Switching | Small Lamp Dimming |
Use Scenario: Start-stop control of 230 VAC centrifugal pumps in coffee makers and water dispensers. IC Role / Device Role / Timing Role: High-reliability AC load switch managing inductive kickback and thermal cycling. Use Value: 25 mA IL latching current guarantees sustained conduction despite brief gate pulse duration from MCU timers. | Use Scenario: Dimmable lighting control in smart mirrors and bathroom fixtures using leading-edge phase control. IC Role / Device Role / Timing Role: Low-power AC switch interfaced directly to 5 V microcontrollers without gate driver. Use Value: 1.6 V VT minimizes conduction loss and self-heating in compact enclosures where airflow is limited. |
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 |
|---|---|---|---|
| Z0107MN 5AA4 | 5 mA max IGT vs. 10 mA - lower gate drive requirement but reduced noise margin | Better suited for ultra-low-power MCU outputs; less tolerant of PCB leakage or capacitive coupling | Select when driving from weak GPIOs (e.g., 1.8 V logic) and board layout minimizes noise pickup |
| Z0110MN 6AA4 | 25 mA max IGT, same 800 V rating, 4000 pcs/reel packaging vs. 1000 pcs/reel | Higher gate drive demand requires buffer stage for most MCUs; optimized for high-volume production | Choose for cost-sensitive mass production where gate buffering is already present and reel size matters |
Compared with Z0107MN 5AA4, Z0109MN offers higher noise immunity and simpler drive; compared with Z0110MN 6AA4, it reduces gate drive overhead and supports smaller reels for prototyping and low-volume builds.
Availability
Z0109MN 5AA4 is available at Aetrix Electronics and suitable for home appliance control, AC motor regulation, and solid-state relay modules requiring stable component supply across industrial and consumer OEM programs.
Supply support for Z0109MN 5AA4 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, delivering intelligent power, analog, MEMS, and microcontroller solutions for industrial, automotive, and consumer markets.
The Z01 series belongs to ST's general-purpose power discrete portfolio, engineered specifically for cost-effective, reliable AC switching in resource-constrained embedded systems where microcontroller direct drive and thermal efficiency are critical.
FAQ
What is the maximum junction temperature for continuous operation?
The Z0109MN 5AA4 has an operating junction temperature range of –40 °C to +125 °C. For continuous 1 A RMS operation in SOT-223, the tab temperature must not exceed 90 °C per Table 1, requiring ≥5 cm² copper area and appropriate ambient thermal management to maintain Tj ≤ 125 °C.
Can this triac be driven directly from a 3.3 V microcontroller GPIO?
Yes - with IGT ≤ 10 mA max and VGT ≤ 1.3 V, the Z0109MN 5AA4 can be reliably triggered by a 3.3 V MCU GPIO sourcing ≥12 mA (e.g., STM32, ESP32, or PIC18F). A 330 Ω series resistor limits gate current to ~7 mA, staying within safe PG(AV) = 1 W and IGM = 1 A limits.
Is the SOT-223 tab electrically isolated from the leads?
No - the exposed tab in the SOT-223 package is internally connected to MT2 (A2) and is not insulated. It must be mounted on a PCB copper pour tied to the A2 net; isolation requires mechanical standoff or insulating thermal pad, which degrades Rth(j-t) and derates IT(RMS).
How does the 800 V VDRM rating translate to real-world 230 VAC use?
The 800 V VDRM provides >3× peak line voltage margin (230 VAC × √2 ≈ 325 V) against surges, transients, and ringing. ST specifies this rating at Tj = 125 °C, ensuring robust blocking capability even under worst-case thermal and electrical stress in enclosed appliance environments.
Z0109MN 5AA4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Triac Type:
- Logic - Sensitive Gate
- Voltage - Off State:
- 600 V
- Current - On State (It (RMS)) (Max):
- 1 A
- Voltage - Gate Trigger (Vgt) (Max):
- 1.3 V
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 8A, 8.5A
- Current - Gate Trigger (Igt) (Max):
- 10 mA
- Current - Hold (Ih) (Max):
- 10 mA
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223
Z0109MN 5AA4 FAQ
1.How can I place an order for Z0109MN 5AA4 through Aetrix?
Please submit a Request for Quotation (RFQ) for Z0109MN 5AA4 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 Z0109MN 5AA4 reliable?
The price and inventory of Z0109MN 5AA4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for Z0109MN 5AA4 is usually 5 days.
3.What payment methods are accepted for Z0109MN 5AA4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for Z0109MN 5AA4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for Z0109MN 5AA4?
Z0109MN 5AA4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your Z0109MN 5AA4 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 Z0109MN 5AA4?
For technical support, including Z0109MN 5AA4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your Z0109MN 5AA4 requirements.
6.How does Aetrix verify that Z0109MN 5AA4 is sourced from the original manufacturer or authorized distributors?
All Z0109MN 5AA4 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 Z0109MN 5AA4 meets industry standards.
7.What is the process for return or replacement of Z0109MN 5AA4?
All Z0109MN 5AA4 units undergo pre-shipment inspection (PSI). If there is an issue with Z0109MN 5AA4, 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 Z0109MN 5AA4 part is unused and in its original packaging.
Return procedure for Z0109MN 5AA4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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