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STMicroelectronics Z0109NN 5AA4
- Part No.:
- Z0109NN 5AA4
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
Z0109NN 5AA4.pdf
- Description:
- TRIAC SENS GATE 800V 1A SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:2,144
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Product details
Overview
Z0109NN 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 low-power mains-connected loads. It features 10 mA maximum gate trigger current (IGT), 1.6 V max on-state voltage at 25 °C, and 20 A/µs critical rate of rise of on-state current (dl/dt), enabling direct microcontroller drive in home appliance motor and lamp control circuits.
For engineers reviewing the Z0109NN 5AA4 datasheet, Z0109NN 5AA4 pinout, Z0109NN 5AA4 application, or Z0109NN 5AA4 equivalent, this page delivers verified electrical specs, thermal derating curves, gate sensitivity variants, SOT-223 footprint data, and real-world triac replacement guidance - all extracted from ST's DS2116 Rev 14 datasheet.
Technical Context
This triac operates in all four quadrants with symmetrical triggering behavior, supporting both leading- and trailing-edge phase control. Its 10 mA IGT (Q1–Q4) and 1.3 V max VGT allow reliable turn-on from 3.3 V or 5 V GPIOs without external amplification.
Thermal design is constrained by Rth(j-t) = 25 °C/W (SOT-223, AC), requiring heatsinking above ~0.6 A RMS at ambient >50 °C. The device sustains 8 A non-repetitive surge (tp = 20 ms, 50 Hz) and maintains dV/dt immunity ≥100 V/µs at Tj = 110 °C with gate open.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 1 A RMS - supports continuous load current up to 120 W @ 120 VAC or 240 W @ 240 VAC with proper thermal management |
| VDRM / VRRM | 800 V - withstands peak line voltages up to 566 V (120 VAC) or 1131 V (240 VAC) with safety margin |
| IGT (max) | 10 mA - compatible with standard MCU GPIOs; no external driver needed for most 3.3 V/5 V logic |
| dl/dt (min) | 20 A/µs - prevents false triggering during fast current transients in inductive fan or pump loads |
| VTO / Rd | 0.95 V / 400 mΩ - low conduction loss reduces self-heating and improves efficiency in battery-backed or thermally constrained designs |
| dV/dt (min) | 100 V/µs - high noise immunity ensures stable operation in EMI-prone environments like washing machine control boards |
| I²t (fusing) | 0.35 A²s - defines single-pulse short-circuit withstand capability; informs fuse selection for overcurrent protection |
Pinout & Package
SOT-223 package: surface-mount, 4-pin (3 active + tab), thermally enhanced with exposed metal tab for PCB heat transfer. Tab is electrically connected to MT2 (A2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main Terminal 1 | Reference terminal for gate trigger; connects to load return path; polarity-sensitive in quadrant-specific firing |
| A2 (MT2) | Main Terminal 2 | Connected to exposed tab; carries full load current; must be routed to heatsink or large copper pour |
| G | Gate | Controls conduction onset; requires ≥10 mA pulse (10 µs min) for guaranteed turn-on in Q1/Q3; referenced to A1 |
| Tab | MT2 (A2) | Electrically tied to A2; provides primary thermal path to PCB; must not be isolated from A2 in layout |
Key Features
| Feature | Design Value |
|---|---|
| Quadrant IV compatibility | Guaranteed turn-on with negative gate-to-A1 voltage - enables universal phase-control in bidirectional AC systems |
| Low IGT temperature drift | IGT increases only ~2× from 25 °C to 125 °C - maintains reliable triggering across full industrial temperature range |
| High dV/dt immunity | 100 V/µs minimum at 110 °C - eliminates need for snubber networks in resistive lamp dimmers |
| ECOPACK® compliant | Lead-free plating and halogen-free molding compound - meets RoHS and REACH requirements for global appliance markets |
| Standardized SOT-223 footprint | Compatible with IPC-7351B SOIC-4 land pattern - simplifies PCB reuse across ST's Z01 series (Z0103/Z0107/Z0109) |
Applications
| Washing Machine Door Lock | Fan Speed Controller |
|---|---|
Use Scenario: Energizing 24 VAC solenoid lock during wash cycle, controlled by MCU PWM output. IC Role / Device Role / Timing Role: AC power switch enabling/disabling lock coil; triggered once per cycle with zero-crossing sync. Use Value: 10 mA IGT allows direct drive from STM32 GPIO; 800 V rating handles induced back-EMF spikes from coil de-energization. | Use Scenario: Phase-angle dimming of shaded-pole fan motor in HVAC unit to regulate airflow. IC Role / Device Role / Timing Role: Bidirectional AC switch modulating RMS voltage delivered to motor windings. Use Value: 20 A/µs dl/dt rating prevents commutation failure during rapid speed transitions; SOT-223 tab enables compact heatsinking on dense control board. |
| Smart Lamp Dimmer Module | Small Appliance Pump Control |
Use Scenario: Mains-powered LED driver with analog-dimming interface, requiring silent, flicker-free AC switching. IC Role / Device Role / Timing Role: Leading-edge phase-cut switch synchronized to AC zero-crossing for smooth brightness control. Use Value: 100 V/µs dV/dt immunity eliminates snubber components, reducing BOM cost and board area in space-constrained smart bulb modules. | Use Scenario: Controlling 120 VAC diaphragm pump in coffee maker, activated for precise water dosing intervals. IC Role / Device Role / Timing Role: On/off AC switch actuated by timer-based MCU output; no phase control required. Use Value: 1 A RMS rating matches typical pump surge/hold profile; TO-92/SOT-223 package options allow layout flexibility across product generations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triac switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Z0107NN 5AA4 | 5 mA max IGT - lower gate sensitivity requires tighter drive margin | Better noise immunity in high-EMI environments due to higher trigger threshold | Select when driving from weak-signal sources or where reduced false-trigger risk outweighs higher MCU drive overhead |
| Z0110NN 5AA4 | 25 mA max IGT - higher gate current demand; less suitable for 3.3 V MCUs | Higher dV/dt (≥100 V/µs) and dl/dt (≥50 A/µs) ratings improve robustness in highly inductive loads | Choose for demanding industrial actuators where gate drive strength is available and surge immunity is critical |
Compared with Z0107NN and Z0110NN, Z0109NN strikes the optimal balance: sufficient gate sensitivity for 3.3 V MCU drive while retaining strong dV/dt and dl/dt margins for home appliance reliability - making it the default choice for new fan, pump, and dimmer designs.
Availability
Z0109NN 5AA4 is available at Aetrix Electronics and suitable for home appliance control, fan speed regulation, and small AC pump switching requiring stable component supply and long-term manufacturing continuity.
Supply support for Z0109NN 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, designing and manufacturing analog, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.
The Z01 series targets cost-sensitive, low-to-medium power AC switching applications - delivering standardized triac performance across multiple sensitivities and packages to simplify design-in and reduce qualification effort for white goods and smart home products.
FAQ
What is the maximum junction temperature for continuous operation?
The Z0109NN 5AA4 has an operating junction temperature range of –40 °C to +125 °C. For continuous 1 A RMS operation in SOT-223, thermal design must ensure junction temperature stays ≤125 °C - typically requiring ≤50 °C ambient with ≥1 cm² copper pour under the tab, per Figure 2 and Table 4.
Can this triac replace a BT136 or MAC97A6 in existing designs?
Yes - Z0109NN 5AA4 shares identical SOT-223 pinout and 1 A/800 V ratings with BT136-800 and MAC97A6. However, its 10 mA IGT is higher than BT136's 5 mA, so verify gate drive capability; also confirm layout accommodates Z01's slightly larger tab thermal pad (6.5 mm × 3.5 mm vs. BT136's 6.2 mm × 3.2 mm).
Is a snubber circuit required for resistive lamp loads?
No snubber is required for purely resistive lamp loads due to the device's 100 V/µs dV/dt immunity at 110 °C. However, a 100 Ω + 100 pF RC snubber is recommended for inductive fan motors to suppress voltage overshoot during turn-off and prevent false re-triggering.
What does "5AA4" indicate in the order code?
"5AA4" specifies tape-and-reel packaging: 5 = tape-and-reel delivery mode, AA = SOT-223 package, 4 = 13-inch reel size holding 1000 units. This differs from "6AA4", which denotes 4000-unit 13-inch reels - confirming Z0109NN 5AA4 is supplied in 1k reels per DS2116 Table 9.
Z0109NN 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:
- 800 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
Z0109NN 5AA4 FAQ
1.How can I place an order for Z0109NN 5AA4 through Aetrix?
Please submit a Request for Quotation (RFQ) for Z0109NN 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 Z0109NN 5AA4 reliable?
The price and inventory of Z0109NN 5AA4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for Z0109NN 5AA4 is usually 5 days.
3.What payment methods are accepted for Z0109NN 5AA4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for Z0109NN 5AA4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for Z0109NN 5AA4?
Z0109NN 5AA4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your Z0109NN 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 Z0109NN 5AA4?
For technical support, including Z0109NN 5AA4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your Z0109NN 5AA4 requirements.
6.How does Aetrix verify that Z0109NN 5AA4 is sourced from the original manufacturer or authorized distributors?
All Z0109NN 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 Z0109NN 5AA4 meets industry standards.
7.What is the process for return or replacement of Z0109NN 5AA4?
All Z0109NN 5AA4 units undergo pre-shipment inspection (PSI). If there is an issue with Z0109NN 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 Z0109NN 5AA4 part is unused and in its original packaging.
Return procedure for Z0109NN 5AA4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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