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Home > Products > Discrete Semiconductor Products > Thyristors > TRIACs

STMicroelectronics Z0107SN 5AA4

Name: Z0107SN 5AA4
Brand: STMicroelectronics
SKU: Z0107SN 5AA4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: Z0107SN 5AA4

Manufacturer:: STMicroelectronics

Category:: TRIACs

Package:: TO-261-4, TO-261AA

Datasheet:: Z0107SN 5AA4.pdf

Description:: TRIAC SENS GATE 700V 1A SOT223

Quantity:: RFQ Add To RFQ list

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Inventory:4,390

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Product details

Overview

Z0107SN 5AA4 from STMicroelectronics is a 5 mA sensitivity, 800 V repetitive peak off-state voltage (V_RRM) triac in SOT-223 package, rated for 1 A RMS on-state current (I_T(RMS)). It features guaranteed gate trigger current ≤5 mA at 25 °C, low on-state voltage (V_T ≤1.60 V), and dV/dt immunity ≥50 V/µs - designed for direct microcontroller-driven AC load switching in compact home appliance control circuits.

For engineers reviewing the Z0107SN 5AA4 datasheet, Z0107SN 5AA4 pinout, Z0107SN 5AA4 application, or Z0107SN 5AA4 equivalent, key selection criteria include gate sensitivity matching MCU drive capability, thermal resistance (R_th(j-t) = 25 °C/W), I₂t rating (0.35 A²s), and compatibility with zero-crossing or phase-angle control topologies in space-constrained PCB layouts.

Technical Context

This triac operates in all four quadrants with symmetric triggering characteristics, supporting bidirectional AC conduction without external polarity management. Its gate trigger voltage (V_GT ≤1.3 V) and latching current (I_L ≤10 mA) enable reliable turn-on from 3.3 V or 5 V GPIOs under varying junction temperatures (–40 to +125 °C).

Thermal design is constrained by R_th(j-t) = 25 °C/W (SOT-223, AC), requiring tab-to-heatsink interface for sustained 1 A RMS operation above ambient >60 °C. Critical dI/dt (≥0.5 V/µs) and dV/dt (≥50 V/µs) ratings ensure noise-immune commutation in inductive fan or pump loads.

Key Specifications

Parameter	Value and Actual Design Meaning
I_T(RMS)	1 A - supports continuous AC load control up to 120 W @ 120 VAC or 240 W @ 240 VAC with adequate heatsinking
V_RRM	800 V - withstands peak line transients up to 565 V in 400 VAC systems with safety margin
I_GT	≤5 mA - compatible with standard MCU GPIOs without external amplification
V_GT	≤1.3 V - ensures turn-on at 3.3 V logic levels even at elevated temperature
dV/dt	≥50 V/µs - suppresses false triggering from EMI in motor-driven appliances
R_th(j-t)	25 °C/W - defines minimum heatsink requirement for 1 A RMS at T_tab ≤90 °C
I²t	0.35 A²s - determines fuse coordination for 16.7 ms (60 Hz) surge protection

Pinout & Package

SOT-223 package with exposed thermal tab (pin 4), standardized for surface-mount assembly and thermal transfer to PCB copper. Pin 1 = A2 (main terminal 2), Pin 2 = A1 (main terminal 1), Pin 3 = G (gate), Pin 4 = tab (A2-connected thermal path).

Pin/Terminal	Circuit Role	Design Meaning
1 (A2)	Main terminal 2	High-side AC line connection; tied to thermal tab for enhanced power dissipation
2 (A1)	Main terminal 1	Load return path; referenced to gate for quadrant I/II triggering
3 (G)	Gate	Low-energy control input; triggers conduction when I_GT ≥5 mA applied between G and A1
4 (Tab)	Thermal pad / A2 extension	Electrically connected to A2; must be soldered to ≥5 cm² copper area for R_th(j-a) = 60 °C/W

Key Features

Feature	Design Value
Quadrant IV gate sensitivity	I_GT ≤5 mA enables robust triggering with negative gate pulses common in zero-crossing drivers
Low on-state voltage	V_T ≤1.60 V at 1.4 A reduces conduction loss to <1.2 W at full RMS current
High dV/dt immunity	50 V/µs rating prevents spurious turn-on during fast line transients in washing machine motor controls
Thermal performance	R_th(j-t) = 25 °C/W allows 1 A RMS operation with tab temperature held ≤90 °C using minimal PCB copper
ECOPACK® compliance	Lead-free plating and halogen-free molding compound meet RoHS and REACH requirements for global appliance markets

Applications

Washing Machine Door Lock Control

Fan Speed Controller

Use Scenario: Energizing solenoid-based door interlock during spin cycle with 230 VAC supply.

IC Role / Device Role / Timing Role: Bidirectional AC switch triggered by MCU GPIO; conducts full sine wave only during lock engagement.

Use Value: 5 mA I_GT eliminates need for discrete driver transistor; 800 V V_RRM accommodates 230 VAC + 50% surge margin.

Use Scenario: Phase-angle dimming of universal motor in bathroom exhaust fan.

IC Role / Device Role / Timing Role: Main AC switching element in leading-edge phase-control circuit synchronized to zero-crossing detection.

Use Value: 50 V/µs dV/dt rating prevents false triggering from motor back-EMF spikes; SOT-223 footprint fits tight PCB space near motor connector.

Small Lamp Dimmer Module

Pump Motor Starter

Use Scenario: Compact wall-mounted dimmer for 60 W incandescent lamp in residential lighting.

IC Role / Device Role / Timing Role: Load-switching triac controlled by analog-dimming IC; handles full-wave AC conduction with adjustable conduction angle.

Use Value: V_T ≤1.60 V limits self-heating to <1.2 W at full load, enabling thermally passive design in plastic enclosure.

Use Scenario: Start-up control of 100 W condensate pump in HVAC dehumidifier unit.

IC Role / Device Role / Timing Role: Inrush-limited AC switch activated after soft-start delay; sustains 1 A RMS during continuous operation.

Use Value: I²t = 0.35 A²s coordinates with 1 A slow-blow fuse; R_th(j-t) = 25 °C/W permits direct tab mounting to metal chassis for heat sinking.

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 V_RRM, but 50 mA I_GT; TO-220 package; higher R_th(j-t) = 50 °C/W	Requires gate driver stage; unsuitable for direct MCU drive; better for high-current industrial loads	Select when higher surge rating (ITSM = 16 A) and chassis-mounting are prioritized over board space
Z0107MN	Identical electrical specs, same SOT-223 package, but 600 V V_RRM instead of 800 V	Lower voltage margin for 230 VAC mains with poor regulation or lightning surges	Choose only for cost-sensitive 120 VAC applications where 600 V rating suffices

Compared with BT134-600E and Z0107MN, Z0107SN 5AA4 uniquely balances 800 V ruggedness, 5 mA gate sensitivity, and SOT-223 thermal efficiency - making it optimal for space-constrained, microcontroller-driven 230 VAC appliance modules requiring no external driver.

Availability

Z0107SN 5AA4 is available at Aetrix Electronics and suitable for washing machine door locks, fan speed controllers, small lamp dimmers, and pump motor starters requiring stable component supply across global appliance production programs.

Supply support for Z0107SN 5AA4 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, and microcontroller solutions for industrial, automotive, and consumer markets.

The Z01 series belongs to ST's general-purpose power triac product line, engineered specifically for cost-effective, space-efficient AC switching in white goods and small appliances where direct MCU interfacing and thermal compactness are critical.

FAQ

What is the maximum junction temperature for continuous operation?

The Z0107SN 5AA4 has an operating junction temperature range of –40 to +125 °C. For continuous 1 A RMS conduction in SOT-223, tab temperature must be maintained ≤90 °C per Table 1, implying maximum ambient temperature depends on PCB copper area and airflow - typically ≤60 °C with 5 cm² thermal pad and still air.

Can this triac be driven directly from a 3.3 V microcontroller GPIO?

Yes. With I_GT ≤5 mA and V_GT ≤1.3 V at 25 °C (derating to ≤2.0 V at 125 °C), a 3.3 V GPIO sourcing ≥6 mA through a 470 Ω series resistor meets worst-case gate drive requirements while limiting peak gate current to <1 A per Table 1.

Is heatsinking required for 1 A RMS operation?

Yes. At 1 A RMS, power dissipation is ~1.2 W (V_T × I_T(RMS)). With R_th(j-t) = 25 °C/W and max T_j = 125 °C, tab temperature must stay ≤90 °C - requiring either a ≥5 cm² copper pour under the tab or an external heatsink to maintain safe thermal margin.

How does the 800 V V_RRM rating impact system-level surge protection?

The 800 V rating provides 165 V headroom above the 635 V peak of 400 VAC mains, allowing the device to survive common-mode surges (e.g., IEC 61000-4-5 Level 3: 2 kV) without clamping or failure - reducing need for upstream MOVs in cost-sensitive appliance designs.

Z0107SN 5AA4 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: TO-261-4, TO-261AA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Triac Type:: Logic - Sensitive Gate

Voltage - Off State:: 700 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):: 5 mA

Current - Hold (Ih) (Max):: 10 mA

Configuration:: Single

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223

Z0107SN 5AA4 FAQ

1.How can I place an order for Z0107SN 5AA4 through Aetrix?

Please submit a Request for Quotation (RFQ) for Z0107SN 5AA4 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 Z0107SN 5AA4 reliable?

The price and inventory of Z0107SN 5AA4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for Z0107SN 5AA4 is usually 5 days.

3.What payment methods are accepted for Z0107SN 5AA4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for Z0107SN 5AA4 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for Z0107SN 5AA4?

Z0107SN 5AA4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your Z0107SN 5AA4 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 Z0107SN 5AA4?

For technical support, including Z0107SN 5AA4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your Z0107SN 5AA4 requirements.

6.How does Aetrix verify that Z0107SN 5AA4 is sourced from the original manufacturer or authorized distributors?

All Z0107SN 5AA4 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 Z0107SN 5AA4 meets industry standards.

7.What is the process for return or replacement of Z0107SN 5AA4?

All Z0107SN 5AA4 units undergo pre-shipment inspection (PSI). If there is an issue with Z0107SN 5AA4, 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 Z0107SN 5AA4 part is unused and in its original packaging.

Return procedure for Z0107SN 5AA4:

1.Submit a request within 90 days.

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

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