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Home > Products > Discrete Semiconductor Products > Thyristors > TRIACs

STMicroelectronics Z0109MA 5AL2

Name: Z0109MA 5AL2
Brand: STMicroelectronics
SKU: Z0109MA 5AL2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: Z0109MA 5AL2

Manufacturer:: STMicroelectronics

Category:: TRIACs

Package:: TO-226-3, TO-92-3 (TO-226AA)

Datasheet:: Z0109MA 5AL2.pdf

Description:: TRIAC SENS GATE 600V 1A TO92

Quantity:: RFQ Add To RFQ list

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Inventory:2,420

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Product details

Overview

Z0109MA 5AL2 from STMicroelectronics is a 1 A, 600 V RMS-rated sensitive-gate triac in TO-92 package, designed for AC phase-control switching in microcontroller-driven home appliance loads. It features 10 mA maximum gate trigger current (IGT), 1.6 V max on-state voltage at 25 °C, and 100 V/µs dV/dt immunity at 110 °C - enabling direct GPIO drive in electrovalve, pump, and lamp control circuits.

For engineers reviewing the Z0109MA 5AL2 datasheet, Z0109MA 5AL2 pinout, Z0109MA 5AL2 application, or Z0109MA 5AL2 equivalent, this page delivers verified triac specifications, thermal derating curves, gate sensitivity grading, and TO-92 terminal mapping - all critical for reliable zero-crossing or phase-angle dimming design in cost-sensitive AC load interfaces.

Technical Context

This triac operates in all four quadrants with symmetrical triggering characteristics, supporting bidirectional AC conduction without external polarity management. Its 10 mA IGT (Q1–Q4) and 1.3 V max VGT enable robust turn-on under low-drive conditions, while 100 V/µs dV/dt immunity ensures noise-resistant operation in noisy mains environments.

Thermal performance is defined by R_th(j-l) = 60 °C/W (junction-to-lead), allowing 1 A RMS conduction up to 50 °C ambient with standard PCB mounting. The device sustains non-repetitive surge currents up to 8 A (50 Hz, 20 ms) and exhibits 0.35 A²s I²t fusing capability - key for inrush-tolerant motor and solenoid switching.

Key Specifications

Parameter	Value and Actual Design Meaning
IT(RMS)	1 A - continuous AC load current rating at TL = 50 °C (TO-92 lead temperature)
VDRM / VRRM	600 V - peak repetitive off-state voltage; supports 230 VAC mains with 2.6× safety margin
IGT (max)	10 mA - maximum gate trigger current required in Quadrant I–IV; enables direct MCU GPIO drive
dV/dt (min)	100 V/µs - minimum rate of voltage rise before false triggering; validated at Tj = 110 °C, gate open
VTM (max)	1.60 V - max on-state voltage at ITM = 1.4 A; determines conduction loss and self-heating at full load
R_th(j-l)	60 °C/W - junction-to-lead thermal resistance; defines safe operating area under natural convection
I²t (fusing)	0.35 A²s - single-pulse energy withstand before failure; critical for motor startup surge handling

Pinout & Package

Package: TO-92 (straight leads), plastic body, lead-free plating, UL94 V0 epoxy. Dimensions per Table 6: A = 1.35 mm, B = 4.70 mm, C = 2.54 mm, D = 4.40 mm, E = 12.70 mm, F = 3.70 mm.

Pin/Terminal	Circuit Role	Design Meaning
A1	Main Terminal 1	Anode 1 - connects to AC load return path; referenced as ground in half-wave configurations
A2	Main Terminal 2	Anode 2 - connects to AC line input; carries full load current and must handle 600 V transient spikes
G	Gate	Control electrode - accepts 10 mA pulse to initiate conduction in any quadrant; requires current-limiting resistor when driven from 3.3 V/5 V MCU

Key Features

Feature	Design Value
Sensitive gate (10 mA IGT)	Enables direct drive from low-current MCU GPIO pins without buffer transistors
600 V blocking voltage	Supports global 230 VAC mains with margin for lightning-induced transients
100 V/µs dV/dt immunity	Prevents false triggering in electrically noisy environments like washing machine motor drives
TO-92 thermal profile (R_th(j-l) = 60 °C/W)	Allows 1 A RMS operation at 50 °C ambient with no heatsink - ideal for space-constrained appliances
Four-quadrant operation	Eliminates need for external polarity detection circuitry in universal AC phase-control designs

Applications

Electrovalve Control

Pump Speed Regulation

Use Scenario: On/off sequencing of water inlet valves in dishwashers and washing machines using phase-controlled AC drive.

IC Role / Device Role / Timing Role: Triac switch controlling 230 VAC solenoid coil; triggered at zero-crossing to minimize EMI and contact arcing.

Use Value: 10 mA IGT allows direct STM32 GPIO control; 600 V rating accommodates 230 VAC + 20% line tolerance and surge events.

Use Scenario: Variable-speed control of small AC induction pumps in HVAC humidifiers and coffee makers.

IC Role / Device Role / Timing Role: Phase-angle modulated triac regulating RMS voltage applied to pump winding.

Use Value: 100 V/µs dV/dt immunity prevents misfiring during pump commutation noise; TO-92 footprint fits compact control PCBs.

Door Lock Actuation

Lamp Dimming Interface

Use Scenario: Secure locking/unlocking of smart appliance doors via 230 VAC solenoid actuators.

IC Role / Device Role / Timing Role: High-reliability AC switch ensuring fail-safe lock engagement with precise timing window.

Use Value: 0.35 A²s I²t rating withstands solenoid inrush; 1.6 V VTM limits self-heating during extended hold periods.

Use Scenario: Mains-powered LED or incandescent lamp dimming in smart kitchen appliances.

IC Role / Device Role / Timing Role: Leading-edge phase-cut triac delivering adjustable RMS power to lamp load.

Use Value: Four-quadrant symmetry ensures consistent dimming behavior across AC half-cycles; TO-92 simplifies thermal layout on low-cost boards.

Equivalent & Alternatives

The following parts are listed as comparable options for similar triac switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Z0107MA 5AL2	5 mA max IGT - lower gate sensitivity; higher dV/dt (100 V/µs same), identical VDRM/IT(RMS)	Better noise immunity in high-dV/dt environments but requires stronger gate drive	Select when MCU output current > 5 mA is available and system noise exceeds 100 V/µs
Z0110MA 5AL2	25 mA max IGT - higher gate drive requirement; otherwise identical ratings and package	Less suitable for weak GPIOs but offers wider process margin for aging or temperature drift	Choose for legacy 5 V MCU designs with higher drive capability or where long-term reliability margin is prioritized over GPIO loading

Compared with Z0107MA and Z0110MA, Z0109MA strikes the optimal balance between gate drive efficiency (10 mA) and noise immunity (100 V/µs), making it the preferred choice for modern 3.3 V ARM Cortex-M microcontrollers in home appliance control modules.

Availability

Z0109MA 5AL2 is available at Aetrix Electronics and suitable for electrovalve control, pump speed regulation, and door lock actuation requiring stable component supply across high-volume appliance production cycles.

Supply support for Z0109MA 5AL2 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, specializing in power management, analog, MEMS, and microcontroller technologies for industrial, automotive, and consumer markets.

Z01 series triacs are part of ST's general-purpose AC switching portfolio, engineered specifically for cost-sensitive, space-constrained home appliance control - emphasizing direct microcontroller compatibility, thermal robustness in TO-92, and noise-immune operation in real-world mains environments.

FAQ

What is the maximum junction temperature for continuous operation?

The Z0109MA 5AL2 has an operating junction temperature range of –40 °C to +125 °C. For sustained 1 A RMS conduction in TO-92 packaging, the lead temperature must be held ≤ 50 °C - achievable with minimal copper pour and no heatsink at ambient ≤ 40 °C, per Figure 2 in DS2116.

Can this triac be used with 3.3 V microcontrollers without a driver transistor?

Yes - its 10 mA maximum IGT (Quadrant I–IV) and 1.3 V max VGT allow direct drive from 3.3 V GPIOs using a 220 Ω series resistor (delivering ~10 mA at 3.3 V – 1.3 V). This is validated in ST's application notes for STM32-based appliance controllers.

How does the 100 V/µs dV/dt rating impact layout in noisy environments?

The 100 V/µs dV/dt immunity (measured gate-open at Tj = 110 °C) means the triac resists false triggering from fast transients on the A2 line - such as those generated by brushed motor brushes or relay contact bounce. Layout best practices still require short gate traces and local decoupling near the triac.

Is the TO-92 package lead-form compatible with automated pick-and-place assembly?

Yes - the Z0109MA 5AL2 variant with order code 5AL2 uses TO-92 straight leads in tape-and-reel packaging (2000 pcs/reel), fully compatible with standard SMT pick-and-place equipment. Lead coplanarity and pitch (2.54 mm) meet IPC-J-STD-020 requirements for through-hole reflow or selective soldering.

Z0109MA 5AL2 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-226-3, TO-92-3 (TO-226AA)

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:: Through Hole

Supplier Device Package:: TO-92

Z0109MA 5AL2 FAQ

1.How can I place an order for Z0109MA 5AL2 through Aetrix?

Please submit a Request for Quotation (RFQ) for Z0109MA 5AL2 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 Z0109MA 5AL2 reliable?

The price and inventory of Z0109MA 5AL2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for Z0109MA 5AL2 is usually 5 days.

3.What payment methods are accepted for Z0109MA 5AL2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for Z0109MA 5AL2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for Z0109MA 5AL2?

Z0109MA 5AL2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your Z0109MA 5AL2 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 Z0109MA 5AL2?

For technical support, including Z0109MA 5AL2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your Z0109MA 5AL2 requirements.

6.How does Aetrix verify that Z0109MA 5AL2 is sourced from the original manufacturer or authorized distributors?

All Z0109MA 5AL2 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 Z0109MA 5AL2 meets industry standards.

7.What is the process for return or replacement of Z0109MA 5AL2?

All Z0109MA 5AL2 units undergo pre-shipment inspection (PSI). If there is an issue with Z0109MA 5AL2, 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 Z0109MA 5AL2 part is unused and in its original packaging.

Return procedure for Z0109MA 5AL2:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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