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STMicroelectronics Z0402MF0AA2
- Part No.:
- Z0402MF0AA2
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-202 No Tab
- Datasheet:
-
Z0402MF0AA2.pdf
- Description:
- TRIAC SENS GATE 600V 4A TO202-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,838
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Product details
Overview
Z0402MF0AA2 from STMicroelectronics is a 4 A, 600 V RMS triac in TO-202-3 package, with 3 mA gate trigger current (IGT), designed for AC mains switching in home appliance control circuits including electrovalves, pumps, door locks, and small lamp dimming. It supports direct microcontroller drive and features dV/dt immunity of 10 V/µs (min) and I²t rating of 2.2 A²s.
For engineers reviewing the Z0402MF0AA2 datasheet, Z0402MF0AA2 pinout, Z0402MF0AA2 application, or Z0402MF0AA2 equivalent, key selection criteria include gate sensitivity (3 mA), blocking voltage (600 V), RMS current rating (4 A), thermal resistance (15 °C/W junction-to-lead), and TO-202-3 mechanical compatibility for through-hole mounting in cost-sensitive AC control designs.
Technical Context
This triac operates in all four quadrants (I–IV) and is triggered by low-energy gate pulses-enabling direct interface with 3.3 V/5 V microcontrollers without external amplification. Its 3 mA IGT (max) and 1.3 V VGT (max) ensure reliable turn-on under worst-case temperature and aging conditions.
It sustains 20 A non-repetitive surge current (50 Hz, 20 ms) and exhibits 20 A/µs critical dI/dt rating with 2.0 V on-state voltage (VTM) at 5.5 A, supporting robust commutation in inductive loads like fans and solenoids. Thermal design is supported by Rth(j–l) = 15 °C/W and Rth(j–a) = 100 °C/W ratings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 4 A - continuous AC load current handling capability at 25 °C ambient |
| VDRM / VRRM | 600 V - peak repetitive off-state voltage blocking in either direction |
| IGT (Q1) | 3 mA max - maximum gate trigger current required for reliable turn-on in Quadrant I |
| dV/dt (c) | 0.5 V/µs min - minimum rate of voltage rise the device withstands without false triggering |
| I²t | 2.2 A²s - fusing energy limit defining single-pulse surge survivability |
| Rth(j–l) | 15 °C/W - thermal resistance from junction to lead, critical for heatsink-less PCB trace conduction |
| VTM | 2.0 V max - on-state voltage drop at 5.5 A, determining conduction loss and self-heating |
Pinout & Package
Package: TO-202-3 (standard through-hole, 3-pin, lead-free ECOPACK® compliant). Dimensions per STMicroelectronics specification: A = 10.1 mm, D = 10.5 mm, N1 = 2.54 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Main Terminal 1 | Anode 1 - primary current path terminal; connected to neutral or low-side AC line in standard configuration |
| A2 | Main Terminal 2 | Anode 2 - second main current path terminal; typically connected to live AC line |
| G | Gate | Control input - accepts low-current pulse to initiate conduction between A1 and A2 in any quadrant |
Key Features
| Feature | Design Value |
|---|---|
| Quadrant operation | Four-quadrant (I–IV) triggering enables universal AC phase control without polarity constraints |
| Low IGT | 3 mA max gate trigger current allows direct drive from GPIO pins of most MCUs without buffer transistors |
| ECOPACK® compliance | Lead-free second-level interconnect meets RoHS and JEDEC JESD97 marking requirements |
| Thermal performance | 15 °C/W junction-to-lead resistance supports >3 W dissipation with minimal PCB copper area |
Applications
| Home Appliance Electrovalve Control | Fan Speed Regulation |
|---|---|
Use Scenario: On/off sequencing of water/gas solenoid valves in washing machines and dishwashers using zero-crossing or phase-angle control. IC Role / Device Role / Timing Role: Main AC power switch enabling precise 50/60 Hz cycle-synchronized actuation. Use Value: 3 mA IGT ensures compatibility with 3.3 V MCU outputs; 600 V VDRM provides margin over 230 VAC mains with transient spikes. | Use Scenario: Variable-speed control of shaded-pole or PSC fans in HVAC units and kitchen hoods via phase-cut dimming. IC Role / Device Role / Timing Role: Bidirectional AC switch modulating RMS voltage delivered to motor windings. Use Value: 20 A/µs dI/dt rating prevents commutation failure during inductive kickback; TO-202-3 allows manual soldering and mechanical retention. |
| Small Lamp Dimming | Door Lock Actuation |
Use Scenario: Dimming of incandescent or halogen lamps in residential lighting systems using leading-edge phase control. IC Role / Device Role / Timing Role: AC mains switch synchronized to zero-crossing point for EMI reduction and smooth brightness adjustment. Use Value: 10 V/µs dV/dt immunity suppresses false triggering from line noise; 4 A IT(RMS) supports up to 500 W resistive load. | Use Scenario: Momentary energization of electromagnetic door locks in access control panels powered from 120/230 VAC. IC Role / Device Role / Timing Role: High-reliability AC power switch delivering short-duration pulses to lock coils. Use Value: 2.2 A²s I²t rating accommodates 100 ms lock activation surges; 2.0 V VTM limits coil heating during hold state. |
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 |
|---|---|---|---|
| BT134-600E | 4 A IT(RMS), 600 V VDRM, but 5 mA IGT (higher gate drive requirement) | Suitable for same appliance loads but requires stronger gate drive or buffer stage | Select when higher dV/dt immunity (25 V/µs) is prioritized over gate sensitivity |
| MAC4DCM | 4 A IT(RMS), 600 V VDRM, 5 mA IGT, TO-220AB package (larger footprint, better thermal dissipation) | Better suited for higher ambient temperatures or longer duty cycles due to lower Rth(j–a) | Choose when board space permits TO-220 and thermal margin exceeds 15 °C/W junction-to-lead limit |
Compared with BT134-600E and MAC4DCM, Z0402MF0AA2 offers the lowest gate drive demand (3 mA) and smallest through-hole footprint (TO-202-3), making it optimal for space-constrained, low-power MCU-driven AC switches where gate drive strength is limited.
Availability
Z0402MF0AA2 is available at Aetrix Electronics and suitable for home appliance electrovalve control, fan speed regulation, small lamp dimming, and door lock actuation requiring stable component supply across production lifecycles.
Supply support for Z0402MF0AA2 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, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.
Z04 series triacs belong to ST's power discrete portfolio, engineered specifically for cost-effective, reliable AC mains switching in resource-constrained embedded systems where low gate drive, compact packaging, and robust surge tolerance are essential.
FAQ
What is the maximum junction temperature for Z0402MF0AA2?
The maximum operating junction temperature (Tj) is +125 °C, as specified in Table 1. This limit governs thermal design when calculating allowable power dissipation using Rth(j–l) = 15 °C/W. Exceeding this temperature risks parametric shift and premature failure, especially under sustained 4 A RMS load with inadequate heat sinking.
Can Z0402MF0AA2 be used with 3.3 V microcontrollers?
Yes - its maximum gate trigger current (IGT) is 3 mA at 25 °C, and VGT is ≤1.3 V. A 3.3 V MCU GPIO can directly drive the gate through a series resistor (e.g., 1 kΩ yields ~3.3 mA peak), satisfying turn-on requirements across the full -40 °C to +125 °C junction temperature range per Figure 4.
Is Z0402MF0AA2 RoHS-compliant?
Yes - it is supplied in an ECOPACK® package with lead-free second-level interconnect, conforming to RoHS Directive 2011/65/EU. The ECOPACK marking appears on both the device body and inner box label, and full compliance documentation is available at www.st.com/ecopack.
Does Z0402MF0AA2 require a snubber circuit?
A snubber is recommended for inductive loads (e.g., motors, solenoids) to suppress voltage transients exceeding 600 V during turn-off. While its dV/dt immunity is 10 V/µs (min), real-world line spikes and commutation overshoot often exceed this - a standard RC snubber (e.g., 100 Ω + 100 nF) improves reliability in fan and valve applications.
Z0402MF0AA2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-202 No Tab
- Packaging:
- Tube
- Product Status:
- Obsolete
- Triac Type:
- Logic - Sensitive Gate
- Voltage - Off State:
- 600 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):
- 3 mA
- Current - Hold (Ih) (Max):
- 3 mA
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-202-3
Z0402MF0AA2 FAQ
1.How can I place an order for Z0402MF0AA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for Z0402MF0AA2 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 Z0402MF0AA2 reliable?
The price and inventory of Z0402MF0AA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for Z0402MF0AA2 is usually 5 days.
3.What payment methods are accepted for Z0402MF0AA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for Z0402MF0AA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for Z0402MF0AA2?
Z0402MF0AA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your Z0402MF0AA2 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 Z0402MF0AA2?
For technical support, including Z0402MF0AA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your Z0402MF0AA2 requirements.
6.How does Aetrix verify that Z0402MF0AA2 is sourced from the original manufacturer or authorized distributors?
All Z0402MF0AA2 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 Z0402MF0AA2 meets industry standards.
7.What is the process for return or replacement of Z0402MF0AA2?
All Z0402MF0AA2 units undergo pre-shipment inspection (PSI). If there is an issue with Z0402MF0AA2, 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 Z0402MF0AA2 part is unused and in its original packaging.
Return procedure for Z0402MF0AA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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