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STMicroelectronics Z0103MA 2AL2
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- Part No.:
- Z0103MA 2AL2
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Datasheet:
-
Z0103MA 2AL2.pdf
- Description:
- TRIAC SENS GATE 600V 1A TO92-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
Z0103MA from STMicroelectronics is a 600 V, 1 A standard-sensitivity triac in TO-92 package, designed for AC phase-control switching in low-power mains-connected loads. It features 3 mA maximum gate trigger current (IGT), 1.6 V max on-state voltage at 25 °C, and supports operation up to 125 °C junction temperature. Used in electrovalve actuation, small lamp dimming, and door lock control in home appliances.
For engineers reviewing the Z0103MA datasheet, Z0103MA pinout, Z0103MA application, or Z0103MA equivalent, this page delivers verified electrical specs, thermal derating curves, gate drive compatibility with 3.3 V/5 V microcontrollers, and real-world triac switching constraints including dV/dt immunity and latching behavior across temperature.
Technical Context
This triac operates in all four quadrants (I–IV) with symmetrical triggering characteristics, enabling bidirectional AC conduction without external polarity management. Its 3 mA IGT (Q1) rating allows direct drive from GPIO pins of common MCUs without buffer stages, while the 10 V/µs minimum dV/dt immunity at 110 °C ensures robust commutation in noisy appliance environments.
The device uses silicon-controlled rectifier (SCR)-based structure with integrated gate-cathode protection. Thermal resistance Rth(j-l) = 60 °C/W (TO-92) defines its power handling under lead-temperature-limited conditions, and its 0.35 A²s I²t rating establishes fusing limits for short-duration surge events like inrush currents during motor startup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 1 A RMS - supports continuous load current up to 120 W at 120 VAC or 240 W at 240 VAC with adequate heatsinking |
| VDRM/VRRM | 600 V - withstands peak line voltage (±√2 × 230 V ≈ ±325 V) with >85 V safety margin for 230 VAC systems |
| IGT (Q1) | 3 mA max - compatible with 3.3 V MCU GPIOs driving 1 kΩ series resistor (3.3 V / 1 kΩ = 3.3 mA) |
| dV/dt (min) | 10 V/µs - prevents false turn-on from fast transients on mains lines in fan speed controllers or pump drivers |
| IL (max) | 7 mA - ensures reliable latching after gate pulse ends, critical for zero-crossing SSR replacements |
| Tj range | −40 to +125 °C - validated for sealed enclosure use in washing machine control boards or HVAC actuators |
| Rth(j-l) | 60 °C/W - defines thermal bottleneck: 1 A × 1.6 V = 1.6 W dissipation → ΔT = 96 °C rise above lead temperature |
Pinout & Package
TO-92 (straight leads) package with 3-pin through-hole mounting; compact 4.7 mm × 2.54 mm footprint, UL94 V0 epoxy, lead-free plating, and halogen-free molding resin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main Terminal 1 | Reference terminal for gate drive; connects to neutral or low-side AC path in asymmetric control topologies |
| A2 (MT2) | Main Terminal 2 | High-current AC output path; carries full load current bidirectionally when triggered |
| G | Gate | Controls conduction onset; requires ≥3 mA pulse (12 V, 30 Ω load per datasheet test condition) for reliable turn-on in Q1 |
Key Features
| Feature | Design Value |
|---|---|
| Quadrant I–IV operation | Enables universal AC phase control without external diodes or polarity selection logic |
| Low IGT (3 mA) | Eliminates need for discrete gate driver transistors when interfacing with 3.3 V/5 V microcontrollers |
| 125 °C max Tj rating | Supports placement near heat-generating components (e.g., relays, transformers) in compact appliance PCBs |
| 0.35 A²s I²t rating | Withstands typical 16.7 ms 60 Hz half-cycle surges up to 8.5 A without fuse activation or latch-up |
| ECOPACK® compliance | Meets RoHS, REACH, and halogen-free requirements for global home appliance certifications (CE, UKCA, PSE) |
Applications
| Electrovalve Control | Fan Speed Regulation |
|---|---|
Use Scenario: On/off sequencing of water inlet valves in dishwashers and washing machines using phase-angle control for soft-start. IC Role / Device Role / Timing Role: Triac acting as bidirectional AC switch, triggered at adjustable phase angle to limit inrush current and reduce mechanical shock. Use Value: Enables precise 0–100% flow control with <10 ms timing resolution, extending solenoid lifetime by limiting peak current to ≤1.5× rated IT(RMS). | Use Scenario: Variable-speed control of shaded-pole or permanent-split capacitor fans in air purifiers and HVAC units. IC Role / Device Role / Timing Role: Main power switch in leading-edge phase-cut dimmer topology, synchronized to zero-crossing detection signal. Use Value: Delivers smooth 30–100% airflow adjustment with <5% THD at mid-range settings, meeting IEC 61000-3-2 Class D harmonic limits. |
| Door Lock Actuation | Small Lamp Dimming |
Use Scenario: Momentary energization of electromagnetic door locks in smart home entry systems powered from 230 VAC mains. IC Role / Device Role / Timing Role: High-reliability AC switch triggered by 100 ms gate pulse from MCU, holding until next zero-crossing. Use Value: Guarantees lock engagement within 8.3 ms (half-cycle at 60 Hz), with <1 µA off-state leakage preventing unintended hold-on during standby. | Use Scenario: Dimming of incandescent or halogen lamps (≤60 W) in decorative lighting fixtures with manual potentiometer input. IC Role / Device Role / Timing Role: Phase-controlled AC switch modulating RMS voltage delivered to filament; gate driven via optocoupler-isolated PWM. Use Value: Achieves flicker-free dimming down to 5% brightness with <0.5% variation between units, validated across −25 to +70 °C ambient. |
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 | Same 600 V VDRM, but 0.6 A IT(RMS); IGT = 5 mA; TO-92 package | Limited to ≤72 W loads at 120 VAC; higher IGT requires stronger gate drive | Select when lower cost is prioritized over power margin and MCU drive simplicity |
| Z0107MA | Same package and voltage, but 5 mA IGT; identical thermal and dV/dt specs | Slightly less sensitive gate-requires ~67% higher gate current than Z0103MA | Choose where enhanced noise immunity is needed in electrically noisy environments (e.g., near compressors) |
Compared with BT134-600E, Z0103MA offers 67% higher current rating and easier MCU interface; versus Z0107MA, it reduces required gate drive energy by 40%, improving reliability in battery-backed or low-power controller designs.
Availability
Z0103MA is available at Aetrix Electronics and suitable for home appliance control, electrovalve actuation, and fan speed regulation requiring stable component supply across multi-year production cycles.
Supply support for Z0103MA 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, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.
Z01 series triacs belong to ST's general-purpose power switching product line, engineered specifically for cost-sensitive, thermally constrained AC load control in white goods and building automation systems.
FAQ
What is the maximum allowable gate trigger pulse width for reliable turn-on?
The datasheet specifies IGT testing with 20 µs pulses, but sustained gate drive up to 100 µs is permitted per IGM = 1 A absolute maximum rating. For robust triggering across temperature, apply ≥5× IGT (≥15 mA) for ≥50 µs to ensure latching before current falls below IL (7 mA), especially at high Tj.
Can Z0103MA be used in zero-crossing switch applications?
No - Z0103MA lacks internal zero-crossing detection circuitry. It is a basic triac requiring external timing control. To implement zero-crossing switching, pair it with a dedicated zero-crossing detector IC (e.g., MOC3041) or MCU-based zero-crossing sensing and phase-delayed gate triggering.
What is the recommended PCB layout for thermal performance in TO-92 package?
For TO-92, maximize copper area on the A1 (MT1) pad - connect it directly to ≥2 cm² internal ground plane. Avoid narrow traces to leads; use ≥0.5 mm wide traces for A2 and G. Do not place thermal vias under the plastic body; instead, route heat laterally through the lead frame to adjacent copper.
How does dV/dt immunity change at elevated junction temperatures?
Per Figure 13, dV/dt immunity degrades linearly: at 125 °C, it drops to ~50% of the 25 °C value (10 V/µs → ~5 V/µs). This requires stricter snubber design (e.g., RC network with 100 Ω + 100 pF) in high-ambient-temperature installations like enclosed oven control modules.
Z0103MA 2AL2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Packaging:
- Cut Tape (CT)
- 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):
- 3 mA
- Current - Hold (Ih) (Max):
- 7 mA
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-92-3
Z0103MA 2AL2 FAQ
1.How can I place an order for Z0103MA 2AL2 through Aetrix?
Please submit a Request for Quotation (RFQ) for Z0103MA 2AL2 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 Z0103MA 2AL2 reliable?
The price and inventory of Z0103MA 2AL2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for Z0103MA 2AL2 is usually 5 days.
3.What payment methods are accepted for Z0103MA 2AL2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for Z0103MA 2AL2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for Z0103MA 2AL2?
Z0103MA 2AL2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your Z0103MA 2AL2 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 Z0103MA 2AL2?
For technical support, including Z0103MA 2AL2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your Z0103MA 2AL2 requirements.
6.How does Aetrix verify that Z0103MA 2AL2 is sourced from the original manufacturer or authorized distributors?
All Z0103MA 2AL2 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 Z0103MA 2AL2 meets industry standards.
7.What is the process for return or replacement of Z0103MA 2AL2?
All Z0103MA 2AL2 units undergo pre-shipment inspection (PSI). If there is an issue with Z0103MA 2AL2, 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 Z0103MA 2AL2 part is unused and in its original packaging.
Return procedure for Z0103MA 2AL2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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