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Home > Products > Discrete Semiconductor Products > Thyristors > TRIACs

STMicroelectronics Z0410MH

Name: Z0410MH
Brand: STMicroelectronics
SKU: Z0410MH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: Z0410MH

Manufacturer:: STMicroelectronics

Category:: TRIACs

Package:: TO-251-3 Short Leads, IPAK, TO-251AA

Datasheet:: Z0410MH.pdf

Description:: TRIAC 600V 4A IPAK

Quantity:: RFQ Add To RFQ list

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Product details

Overview

Z0410MH from STMicroelectronics is a 4 A, 600 V repetitive peak off-state voltage (VDRM/VRRM), 4-quadrant triac in IPAK through-hole package, with 25 mA gate trigger current (IGT), rated for 125 °C junction temperature, and used for AC load switching in heating elements and motor-driven power tools.

For engineers reviewing the Z0410MH datasheet, Z0410MH pinout, Z0410MH application, or Z0410MH equivalent, key selection criteria include quadrants compatibility, dV/dt immunity (≥200 V/µs at 110 °C), thermal resistance (Rth(j-c) = 3 °C/W), and I²t rating (1.5 A²s) for surge robustness in inrush-limited industrial controls.

Technical Context

This 4-quadrant triac operates without external gate polarity biasing, enabling triggering in all four voltage-current quadrants-critical for zero-crossing and phase-control circuits where bidirectional AC conduction and gate sensitivity must be maintained across temperature extremes. Its 25 mA IGT and 1.3 V VGT ensure reliable turn-on with standard microcontroller GPIO drive.

The device features high dV/dt immunity (200 V/µs min at Tj = 110 °C) and critical rate of rise of on-state current (dl/dt = 50 A/µs), supporting stable commutation in inductive loads like solenoids and universal motors without snubber networks under typical 50/60 Hz line conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
IT(RMS)	4 A RMS - supports continuous resistive or inductive AC loads up to 960 W at 240 VAC.
VDRM / VRRM	600 V - withstands repetitive peak line voltages in 230 VAC mains applications with safety margin.
VDSM / VRSM	750 V - handles non-repetitive surges such as lightning-induced transients or switching spikes.
IGT	25 mA max - compatible with low-power MCU outputs or discrete transistor gate drivers without amplification.
Rth(j-c)	3 °C/W - enables efficient heat transfer to heatsink; allows 4 A operation at Tc ≤ 107 °C per datasheet derating.
I²t (fusing)	1.5 A²s - defines single-cycle surge withstand capability for inrush current limiting in heating element startups.
dV/dt immunity	200 V/µs min at Tj = 110 °C - prevents false triggering in noisy industrial environments with fast-rising transients.

Pinout & Package

IPAK package: compact through-hole outline with three leads (A1, A2, G), thermally optimized case design (Rth(j-c) = 3 °C/W), halogen-free molding, lead-free plating, ECOPACK2 compliant.

Pin/Terminal	Circuit Role	Design Meaning
A1	Main terminal 1 (anode 1)	Reference terminal for gate triggering; forms conduction path with A2 when triggered; connected to load return in most configurations.
A2	Main terminal 2 (anode 2)	High-side main current path; carries full load current; electrically isolated from PCB ground unless mounted to heatsink.
G	Gate	Control input for bidirectional triggering; accepts ±25 mA pulses; referenced to A1 for quadrant I/III, to A2 for quadrant II/IV.

Key Features

Feature	Design Value
4-quadrant operation	Enables gate-triggered conduction regardless of A2/A1 voltage polarity or current direction-eliminates need for external diodes or polarity logic.
High dV/dt immunity	200 V/µs minimum at 110 °C ensures noise-immune operation in EMI-heavy motor control or appliance environments.
Low thermal resistance	Rth(j-c) = 3 °C/W allows direct mounting to small heatsinks for sustained 4 A RMS conduction without forced cooling.
ECOPACK2 compliance	Halogen-free resin and lead-free plating meet RoHS and JEDEC J-STD-020 reflow requirements for industrial manufacturing.

Applications

Heating Element Control

Power Tool Motor Drive

Use Scenario: Phase-angle dimming of resistive heating coils in ovens, coffee makers, and soldering irons.

IC Role / Device Role / Timing Role: Bidirectional AC switch controlling power delivery via gate-triggered conduction in all four quadrants.

Use Value: Enables precise thermal regulation without zero-crossing delay, supporting rapid ramp-up and fine-grained temperature setpoints.

Use Scenario: Speed and direction control of universal motors in drills, sanders, and grinders.

IC Role / Device Role / Timing Role: Main AC power switch modulated by PWM-derived gate pulses synchronized to line voltage zero crossings.

Use Value: Delivers high starting torque and smooth variable-speed operation while maintaining EMI below CISPR-14 limits.

Inrush Current Limiting

Industrial Actuator Interface

Use Scenario: Soft-start circuit for transformer-coupled power supplies and large capacitor banks.

IC Role / Device Role / Timing Role: Controlled turn-on device limiting peak inrush by delaying conduction angle during first few AC cycles.

Use Value: Prevents fuse blowing and contact welding in legacy industrial panels using mechanical relays or fuses rated for steady-state only.

Use Scenario: Driving solenoid valves and electromagnetic clutches in PLC-controlled assembly lines.

IC Role / Device Role / Timing Role: High-reliability AC output stage interfacing 24 VDC PLC logic to 115/230 VAC actuators.

Use Value: Withstands repeated switching of inductive loads with >50 A/µs dl/dt and maintains >200 V/µs dV/dt immunity over full temperature range.

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, TO-220 package, Rth(j-c) = 4.5 °C/W, IGT = 10 mA	Lower gate sensitivity but higher thermal resistance; requires larger heatsink at full load	Select when lower gate drive current is available and board space permits TO-220 footprint
TIC226M	4 A IT(RMS), 600 V VDRM, TO-220 package, IGT = 35 mA, Rth(j-c) = 5.5 °C/W	Higher IGT demands stronger gate drive; reduced thermal performance limits continuous current in confined spaces	Prefer for cost-sensitive legacy designs where gate driver headroom exists and thermal budget is relaxed

Compared with BT134-600E and TIC226M, Z0410MH offers superior thermal efficiency (Rth(j-c) = 3 °C/W) and tighter gate sensitivity control (25 mA IGT), making it optimal for compact, high-density industrial PCBs where heatsink area and MCU drive capability are constrained.

Availability

Z0410MH is available at Aetrix Electronics and suitable for heating element control, power tool motor drives, inrush current limiting circuits, and industrial actuator interfaces requiring stable component supply across long-lifecycle production programs.

Supply support for Z0410MH 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, designing and manufacturing analog, mixed-signal, power, and microcontroller solutions for industrial, automotive, and consumer markets.

Z0410MH belongs to ST's high-reliability triac product line, engineered specifically for robust AC power control in harsh thermal and electrical environments found in home appliances and factory automation systems.

FAQ

What is the maximum allowable case temperature for continuous 4 A operation?

The datasheet specifies IT(RMS) = 4 A at Tc = 107 °C. Exceeding this case temperature requires derating per Figure 2; operation above 107 °C reduces RMS current capacity to prevent junction temperature exceeding 125 °C, even with adequate heatsinking.

Can Z0410MH replace a BT136-600D in an existing design?

Z0410MH has identical VDRM (600 V) and IT(RMS) (4 A) ratings but differs in package (IPAK vs. TO-220), thermal resistance (3 vs. 4.5 °C/W), and IGT (25 mA vs. 15 mA). Mechanical redesign is required; gate drive remains compatible, but thermal layout must be revalidated.

Is snubber circuitry required for inductive load switching?

Snubbers are not mandatory due to Z0410MH's 200 V/µs dV/dt immunity and 50 A/µs dl/dt rating, but recommended for highly inductive loads (e.g., large solenoids) to extend lifetime and suppress voltage overshoot beyond VRSM (750 V) during turn-off.

Does Z0410MH support zero-crossing switching?

Z0410MH itself does not integrate zero-crossing detection; it is a basic 4-quadrant triac requiring external timing circuitry (e.g., optocoupler + zero-crossing detector IC) to implement zero-crossing turn-on. Its 4-quadrant behavior enables seamless integration into such architectures.

Z0410MH Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: ECOPACK2

Package/Case:: TO-251-3 Short Leads, IPAK, TO-251AA

Packaging:: Tube

Product Status:: Active

Triac Type:: Standard

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):: 15A, 16A

Current - Gate Trigger (Igt) (Max):: 25 mA

Current - Hold (Ih) (Max):: 25 mA

Configuration:: Single

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: IPAK

Z0410MH FAQ

1.How can I place an order for Z0410MH through Aetrix?

Please submit a Request for Quotation (RFQ) for Z0410MH 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 Z0410MH reliable?

The price and inventory of Z0410MH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for Z0410MH is usually 5 days.

3.What payment methods are accepted for Z0410MH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for Z0410MH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for Z0410MH?

Z0410MH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your Z0410MH 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 Z0410MH?

For technical support, including Z0410MH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your Z0410MH requirements.

6.How does Aetrix verify that Z0410MH is sourced from the original manufacturer or authorized distributors?

All Z0410MH 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 Z0410MH meets industry standards.

7.What is the process for return or replacement of Z0410MH?

All Z0410MH units undergo pre-shipment inspection (PSI). If there is an issue with Z0410MH, 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 Z0410MH part is unused and in its original packaging.

Return procedure for Z0410MH:

1.Submit a request within 90 days.

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

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