My Inquiry
My Account
STMicroelectronics Z0103MA 5AL2
,TO-226_straightlead.jpg)
- Part No.:
- Z0103MA 5AL2
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Datasheet:
-
Z0103MA 5AL2.pdf
- Description:
- TRIAC SENS GATE 600V 1A TO92-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,671
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
Z0103MA 5AL2 from STMicroelectronics is a 600 V, 1 A standard-sensitivity triac in TO-92 package, rated for 3 mA gate trigger current (Q1 quadrant), with 7 mA latching current and 100 V/µs dV/dt immunity at 110 °C. It serves as an AC line switch in low-power home appliance control circuits such as electrovalve actuation, small lamp dimming, and fan speed regulation.
For engineers reviewing the Z0103MA 5AL2 datasheet, Z0103MA 5AL2 pinout, Z0103MA 5AL2 application, or Z0103MA 5AL2 equivalent, key selection criteria include RMS on-state current derating vs. lead temperature, gate sensitivity matching to MCU GPIO drive capability, dV/dt robustness under noisy AC mains, and thermal resistance (Rth(j-l) = 60 °C/W) in TO-92 packaging.
Technical Context
This triac operates in all four quadrants with verified Q1–Q4 triggering behavior; gate trigger voltage is guaranteed ≤1.3 V at 25 °C, and holding current remains ≤10 mA up to 125 °C junction temperature. Its dynamic resistance is 400 mΩ max at 125 °C, enabling low conduction loss in resistive and inductive loads.
The device meets IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity requirements when used with appropriate snubbers. Critical dI/dt rating of 20 A/µs (at Tj = 125 °C) supports reliable commutation in phase-control topologies without false turn-on.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 1 A - Maximum continuous AC load current at TL = 50 °C (TO-92 lead temp) |
| VDRM / VRRM | 600 V - Peak repetitive off-state voltage; suitable for 230 VAC mains with ≥2× safety margin |
| IGT (Q1) | 3 mA max - Gate current required to trigger in quadrant I; compatible with 3.3 V MCU GPIO without buffer |
| dV/dt (min) | 100 V/µs - Minimum rate of voltage rise before false turn-on; ensures noise immunity in EMI-prone environments |
| IL / IH | 7 mA / 10 mA max - Latching and holding currents define minimum load current needed to sustain conduction |
| Rth(j-l) | 60 °C/W - Junction-to-lead thermal resistance; determines power dissipation limit in TO-92 mounting |
| VT (max) | 1.60 V - On-state voltage drop at 1.4 A pulse; sets conduction loss and self-heating at full RMS current |
Pinout & Package
Package: TO-92 (straight leads), plastic body, lead-free, UL94 V0 compliant. Thermal resistance Rth(j-l) = 60 °C/W; maximum junction temperature = +125 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Main Terminal 1 (Anode 1) | Reference terminal for gate drive; connected to neutral or low-side AC return path |
| A2 | Main Terminal 2 (Anode 2) | High-side AC line connection; carries full load current and withstands VDRM |
| G | Gate | Control input; triggers conduction when pulsed with ≥3 mA into A1 reference |
Key Features
| Feature | Design Value |
|---|---|
| Quadrant IV triggering support | Enables zero-crossing and phase-angle control in both half-cycles without external polarity reversal |
| Low IGT (3 mA) | Reduces gate driver component count; eliminates need for discrete transistor buffer when driven by 3.3 V microcontrollers |
| 100 V/µs dV/dt immunity | Prevents spurious turn-on during fast transients on 230 VAC lines, reducing snubber complexity |
| 125 °C max operating junction temperature | Supports operation in enclosed, thermally constrained appliance enclosures without forced cooling |
| ECOPACK® halogen-free construction | Meets RoHS and REACH compliance requirements for global home appliance market access |
Applications
| Electrovalve Control | Fan Speed Regulation |
|---|---|
Use Scenario: Precise on/off actuation of 230 VAC solenoid valves in washing machines and dishwashers. IC Role / Device Role / Timing Role: AC line switch controlling valve coil energization timing synchronized to PLC or MCU logic. Use Value: 3 mA IGT enables direct drive from STM32 GPIO; 10 mA IH ensures stable hold during brief voltage dips. | Use Scenario: Phase-controlled AC voltage reduction to adjust airflow in bathroom exhaust fans and HVAC blowers. IC Role / Device Role / Timing Role: Bidirectional switching element in leading-edge dimmer circuit, triggered at programmable phase angle. Use Value: 100 V/µs dV/dt rating suppresses false triggering from motor back-EMF spikes during commutation. |
| 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: Main AC switching device in TRIAC-based dimmer IC subsystem, controlled via optocoupler-isolated gate signal. Use Value: 1.6 V VT limits conduction loss to <0.8 W at 500 mA RMS, minimizing thermal stress in compact PCB layouts. | Use Scenario: Momentary 230 VAC power delivery to electromagnetic door lock solenoids in smart home entry systems. IC Role / Device Role / Timing Role: High-reliability AC switch activated by secure MCU command with hardware-level current limiting. Use Value: Rth(j-l) = 60 °C/W allows safe 1 A operation with 25 °C ambient rise in sealed lock housing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triac switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BT134-600D | Same 600 V VDRM, but 500 mA IT(RMS); IGT = 5 mA; TO-92 package | Limited to lower-current loads (e.g., indicator lamps only); insufficient for 1 A electrovalves | Select only if load current ≤0.5 A and higher dV/dt margin not required |
| Z0107MA 5AL2 | Same package and voltage rating, but 5 mA IGT; higher gate sensitivity tolerance | Better noise immunity in high-EMI environments due to higher IGT threshold; less prone to accidental triggering | Choose when driving from noisy industrial MCUs or where gate leakage must be minimized |
Compared with BT134-600D, Z0103MA 5AL2 delivers 100% higher RMS current capacity and superior dV/dt immunity; versus Z0107MA 5AL2, it offers lower gate drive burden at the cost of slightly reduced noise margin-ideal for clean, battery-backed MCU systems.
Availability
Z0103MA 5AL2 is available at Aetrix Electronics and suitable for home appliance control, AC motor speed regulation, and low-power lighting systems requiring stable component supply across multi-year production cycles.
Supply support for Z0103MA 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, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.
The Z01 series belongs to ST's general-purpose power switching product line, engineered specifically for cost-sensitive, reliability-critical AC control in white goods and building automation systems.
FAQ
What is the maximum allowable junction temperature for Z0103MA 5AL2?
The absolute maximum operating junction temperature is +125 °C, as specified in Table 1 of DS2116. This limit applies under steady-state conditions with lead temperature held at 50 °C. Exceeding this value risks irreversible degradation of gate oxide integrity and increased IGT drift over time.
Can Z0103MA 5AL2 be used in zero-crossing switch applications?
Yes-it supports all four quadrants and exhibits consistent triggering behavior at near-zero voltage crossings when paired with a zero-crossing detector IC like MOC3041. Its 3 mA IGT and 100 V/µs dV/dt ensure reliable turn-on without false triggering during the crossing transient.
Is a heat sink required for 1 A continuous operation in TO-92?
No dedicated heat sink is required if the PCB layout provides ≥2 cm² copper pour under the TO-92 leads and ambient temperature stays below 40 °C. At 50 °C lead temperature (per datasheet rating), power dissipation is limited to ~0.45 W-achievable with natural convection and minimal copper area.
Does Z0103MA 5AL2 meet RoHS and REACH compliance?
Yes-Z0103MA 5AL2 is manufactured in ST's ECOPACK®-compliant process with lead-free plating and halogen-free molding compound, fully conforming to EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, as confirmed in Section 2 of DS2116.
Z0103MA 5AL2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- 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):
- 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 5AL2 FAQ
1.How can I place an order for Z0103MA 5AL2 through Aetrix?
Please submit a Request for Quotation (RFQ) for Z0103MA 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 Z0103MA 5AL2 reliable?
The price and inventory of Z0103MA 5AL2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for Z0103MA 5AL2 is usually 5 days.
3.What payment methods are accepted for Z0103MA 5AL2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for Z0103MA 5AL2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for Z0103MA 5AL2?
Z0103MA 5AL2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your Z0103MA 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 Z0103MA 5AL2?
For technical support, including Z0103MA 5AL2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your Z0103MA 5AL2 requirements.
6.How does Aetrix verify that Z0103MA 5AL2 is sourced from the original manufacturer or authorized distributors?
All Z0103MA 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 Z0103MA 5AL2 meets industry standards.
7.What is the process for return or replacement of Z0103MA 5AL2?
All Z0103MA 5AL2 units undergo pre-shipment inspection (PSI). If there is an issue with Z0103MA 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 Z0103MA 5AL2 part is unused and in its original packaging.
Return procedure for Z0103MA 5AL2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
Z0103MA 5AL2 Tags
-
Z0103NN5AA4
STMicroelectronics
-
Z0107MNT1G
Littelfuse Inc.
-
Z0103MNT1G
Littelfuse Inc.
;;2.jpg)
-
T405-800B-TR
STMicroelectronics
-
T835-600B-TR
STMicroelectronics
.JPG)
-
2N6073BG
Littelfuse Inc.
-
2N6075BG
Littelfuse Inc.
-
BTA08-600CWRG
STMicroelectronics
-
T835H-6G-TR
STMicroelectronics
-
BTA16-800BRG
STMicroelectronics
-
T1210-800G-TR
STMicroelectronics
-
MAC4DHMT4G
Littelfuse Inc.
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
