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STMicroelectronics Z0405MF 1AA2
- Part No.:
- Z0405MF 1AA2
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-202 No Tab
- Datasheet:
-
Z0405MF 1AA2.pdf
- Description:
- TRIAC SENS GATE 600V 4A TO202-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,505
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Product details
Overview
Z0405MF 1AA2 from STMicroelectronics is a 4 A, 600 V RMS triac in TO-202-3 package, optimized for microcontroller-driven AC switching with 5 mA gate trigger current (IGT), 2.0 V on-state voltage (VTM), and 15 °C/W junction-to-lead thermal resistance. It is used in home appliance electrovalve control, small lamp dimming, and fan speed regulation where direct MCU gating and thermal reliability are required.
For engineers reviewing the Z0405MF 1AA2 datasheet, Z0405MF 1AA2 pinout, Z0405MF 1AA2 application, or Z0405MF 1AA2 equivalent, key selection criteria include gate sensitivity (5 mA IGT), dV/dt immunity (20 V/µs min), critical dI/dt rating (20 A/µs), thermal impedance (Rth(j-l) = 15 °C/W), and TO-202-3 leadform compatibility with PCB through-hole mounting.
Technical Context
This triac operates in all four quadrants (I–IV) with symmetrical triggering behavior, enabling bidirectional AC conduction without external polarity management. Its 5 mA IGT allows direct drive from standard GPIO pins (e.g., STM32, PIC, AVR) without buffer stages, while the 20 V/µs minimum dV/dt rating ensures noise-immune commutation in inductive load environments like motor windings and solenoids.
The device features a 125 °C maximum junction temperature, 2.2 A²s I²t fusing capability, and 20 A non-repetitive surge rating at 50 Hz - supporting transient overload tolerance in appliance power-up sequences. Thermal design leverages its low Rth(j-l) of 15 °C/W for heatsink-free operation up to 2.5 A RMS at 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 4 A - continuous AC load current handling capacity under full-sine wave conditions at 25 °C ambient |
| VDRM / VRRM | 600 V - peak repetitive off-state blocking voltage in both directions, suitable for 230 VAC mains applications |
| IGT (Q1) | 5 mA - maximum gate trigger current required in Quadrant I, enabling direct microcontroller GPIO drive |
| dV/dt (min) | 20 V/µs - minimum rate of rise of off-state voltage before false turn-on, critical for inductive load noise immunity |
| Rth(j-l) | 15 °C/W - junction-to-lead thermal resistance, defining heatsink requirements for sustained 4 A operation |
| VTM | 2.0 V - maximum on-state voltage drop at 5.5 A pulse, directly determining conduction loss (P ≈ 2.0 V × IT) |
| I²t | 2.2 A²s - fusing integral for 10 ms pulse, specifying short-circuit withstand capability before failure |
Pinout & Package
Package: TO-202-3 (ECOPACK® compliant, lead-free second-level interconnect, 0.8 g unit weight, tube packaging).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Main Terminal 1 (Anode 1) | Reference terminal for gate triggering; connected to neutral or low-side AC line in standard configuration |
| A2 | Main Terminal 2 (Anode 2) | High-side AC line connection; current flows between A2 and A1 when triggered |
| G | Gate | Control input accepting positive or negative pulses relative to A1 to initiate conduction in any quadrant |
Key Features
| Feature | Design Value |
|---|---|
| Quadrant I–IV operation | Enables universal AC phase control without external polarity inversion circuitry |
| 5 mA gate sensitivity | Eliminates need for gate driver ICs or transistor buffers when interfacing with 3.3 V/5 V microcontrollers |
| 20 A non-repetitive surge rating | Withstands motor inrush currents and transformer magnetizing surges in appliance startup cycles |
| ECOPACK® packaging | Meets RoHS and JEDEC JESD97 standards with lead-free solderability and marked environmental compliance |
| 15 °C/W junction-to-lead Rth | Supports compact thermal design: 2.5 A RMS operation possible without heatsink at 25 °C ambient |
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 AC switching. IC Role / Device Role / Timing Role: Bidirectional AC switch triggered by MCU PWM output synchronized to AC zero-crossing detection. Use Value: 5 mA IGT enables direct GPIO drive; 600 V VDRM safely isolates 230 VAC mains; TO-202-3 mechanical robustness supports high-cycle valve actuation. | Use Scenario: Phase-angle dimming of universal motor fans in HVAC systems and kitchen hoods. IC Role / Device Role / Timing Role: Main AC power switch controlled via variable-phase gate pulses to adjust RMS voltage delivered to motor winding. Use Value: 20 V/µs dV/dt rating prevents false triggering from motor back-EMF spikes; 2.2 A²s I²t withstands brief stall overloads. |
| Small Lamp Dimming | Door Lock Actuation |
Use Scenario: Resistive load dimming for incandescent or halogen lamps in smart lighting modules. IC Role / Device Role / Timing Role: Leading-edge phase-cut AC switch modulating conduction angle per MCU command. Use Value: 4 A IT(RMS) supports up to 920 W resistive loads at 230 VAC; 2.0 V VTM limits conduction loss to <10 W at full load. | Use Scenario: Momentary 230 VAC energization of electromagnetic door locks in access control panels. IC Role / Device Role / Timing Role: High-reliability AC power switch activated by short-duration gate pulse from security controller. Use Value: 20 A ITSM surge rating handles lock coil inrush; TO-202-3 leadframe ensures mechanical retention during repeated actuation cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triac switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BT134-600E | 4 A IT(RMS), 600 V VDRM, but higher 10 mA IGT and 25 °C/W Rth(j-l) | Requires gate buffer for 3.3 V MCU drive; needs heatsink above 1.8 A RMS | Select when legacy footprint compatibility is required and gate drive margin exists |
| Z0405MN | Same 4 A/600 V/5 mA specs, but TO-220AB package (Rth(j-a) = 65 °C/W vs 100 °C/W for TO-202-3) | Higher thermal performance in forced-air or heatsinked designs; larger board footprint | Select when higher ambient temperatures (>50 °C) or longer duty cycles demand improved thermal dissipation |
Compared with BT134-600E and Z0405MN, Z0405MF 1AA2 provides optimal balance of low gate drive requirement, TO-202-3 compactness, and sufficient thermal capability for space-constrained appliance PCBs operating below 50 °C ambient.
Availability
Z0405MF 1AA2 is available at Aetrix Electronics and suitable for home appliance electrovalve control, fan speed regulation, and small lamp dimming requiring stable component supply across industrial production lifecycles.
Supply support for Z0405MF 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, mixed-signal, power, and microcontroller products for industrial, automotive, and consumer markets.
Z0405MF 1AA2 belongs to the Z04 Standard Triacs product line, engineered specifically for cost-sensitive, high-volume AC switching in white goods and building automation where reliability, gate sensitivity, and thermal efficiency are prioritized over ultra-high voltage or fast switching.
FAQ
What is the maximum junction temperature for Z0405MF 1AA2?
The maximum operating junction temperature (Tj) is +125 °C, as specified in Table 1 of the datasheet. This rating defines the upper thermal limit for safe conduction; exceeding it risks irreversible degradation of the silicon die and premature failure. Derating curves in Figures 2 and 4 confirm usable current drops linearly above 25 °C ambient, reaching ~2.5 A RMS at 70 °C ambient.
Can Z0405MF 1AA2 be driven directly from a 3.3 V microcontroller GPIO?
Yes - its maximum IGT of 5 mA at 25 °C and guaranteed VGT ≤ 1.3 V allow reliable triggering from standard 3.3 V GPIO pins with a series resistor (e.g., 470 Ω). The device's Quadrant I–IV operation further eliminates polarity concerns, making it compatible with both high- and low-side gate drive configurations without level-shifting circuitry.
Is Z0405MF 1AA2 RoHS-compliant and lead-free?
Yes - it is manufactured in STMicroelectronics' ECOPACK® package, which uses lead-free second-level interconnects and complies with RoHS Directive 2011/65/EU. The inner box label and package marking indicate the environmental category per JEDEC JESD97, and soldering profiles follow IPC/JEDEC J-STD-020 for lead-free reflow.
What is the difference between Z0405MF and Z0405SF?
Z0405MF is rated for 600 V VDRM/VRRM, while Z0405SF is rated for 700 V. Both share identical 4 A IT(RMS), 5 mA IGT, and TO-202-3 packaging. The higher voltage rating of Z0405SF suits applications with elevated mains transients (e.g., industrial 277 VAC systems), whereas Z0405MF is optimized for standard 230 VAC residential appliances with tighter cost and size constraints.
Z0405MF 1AA2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-202 No Tab
- Packaging:
- Bag
- 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):
- 5 mA
- Current - Hold (Ih) (Max):
- 5 mA
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-202-3
Z0405MF 1AA2 FAQ
1.How can I place an order for Z0405MF 1AA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for Z0405MF 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 Z0405MF 1AA2 reliable?
The price and inventory of Z0405MF 1AA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for Z0405MF 1AA2 is usually 5 days.
3.What payment methods are accepted for Z0405MF 1AA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for Z0405MF 1AA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for Z0405MF 1AA2?
Z0405MF 1AA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your Z0405MF 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 Z0405MF 1AA2?
For technical support, including Z0405MF 1AA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your Z0405MF 1AA2 requirements.
6.How does Aetrix verify that Z0405MF 1AA2 is sourced from the original manufacturer or authorized distributors?
All Z0405MF 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 Z0405MF 1AA2 meets industry standards.
7.What is the process for return or replacement of Z0405MF 1AA2?
All Z0405MF 1AA2 units undergo pre-shipment inspection (PSI). If there is an issue with Z0405MF 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 Z0405MF 1AA2 part is unused and in its original packaging.
Return procedure for Z0405MF 1AA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
Z0405MF 1AA2 Tags
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