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Home > Products > Discrete Semiconductor Products > Thyristors > TRIACs

NXP Semiconductors ACT108W-600D,135

Name: ACT108W-600D,135
Brand: NXP Semiconductors
SKU: ACT108W-600D,135
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ACT108W-600D,135

Manufacturer:: NXP Semiconductors

Category:: TRIACs

Package:: -

Datasheet:: ACT108W-600D,135.pdf

Description:: TRIAC SENS GATE 600V SOT223

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Inventory:10,152

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Product details

Overview

ACT108W-600D,135 from WeEn Semiconductors is a 600 V, 8 A sensitive-gate triac in SOT-428 (DPAK) package, designed for AC mains phase-control switching in motor speed control and heater regulation circuits. It features 50 mA gate trigger current (IGT), 1.5 V gate trigger voltage (VGT), and 100 °C maximum junction temperature.

For engineers reviewing the ACT108W-600D,135 datasheet, ACT108W-600D,135 pinout, ACT108W-600D,135 application, or ACT108W-600D,135 equivalent, key selection criteria include RMS on-state current rating, commutation robustness (dI/dt ≥ 10 A/μs), gate sensitivity under low-temperature conditions, and compliance with IEC 61000-4-5 surge immunity requirements for industrial appliance interfaces.

Technical Context

This triac operates in four-quadrant mode with asymmetric blocking capability (600 V repetitive peak off-state voltage in both directions). Its sensitive gate enables direct drive from microcontrollers without external amplification, supporting zero-crossing or phase-angle control topologies in single-phase AC loads up to 1 kW.

The device uses planar passivation technology for high-temperature reliability and false-trigger immunity. It meets IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) standards when used with appropriate snubbing networks, and is rated for operation up to 100 °C junction temperature with derated current above 75 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DRM/V_RWM	600 V - Maximum repetitive peak off-state voltage in either direction; supports 230 VAC mains with 2× safety margin
I_T(RMS)	8 A - Continuous RMS on-state current at T_c = 80 °C; suitable for 1 kW resistive loads at 230 VAC
I_GT	50 mA max - Gate trigger current at 25 °C; enables direct MCU GPIO drive without buffer stage
V_GT	1.5 V max - Gate trigger voltage; ensures reliable turn-on with 3.3 V or 5 V logic-level signals
dI/dt (crit)	≥10 A/μs - Minimum commutating di/dt; prevents false turn-off during inductive load switching
T_j max	100 °C - Maximum junction temperature; requires thermal design for PCB copper area ≥ 250 mm² at full load

Pinout & Package

SOT-428 (DPAK) surface-mount package with exposed drain pad for thermal conduction; 3-terminal configuration: MT1 (Main Terminal 1), MT2 (Main Terminal 2), and G (Gate).

Pin/Terminal	Circuit Role	Design Meaning
MT1	Anode-side main terminal	Connected to load return path; polarity-sensitive in phase-control dimming circuits
MT2	Cathode-side main terminal	Connected to AC line input; carries full load current and must be routed with creepage/clearance ≥ 4 mm
G	Control gate	Low-current trigger input; requires <100 nF bypass capacitor near gate to suppress EMI-induced false triggering

Key Features

Feature	Design Value
4Q operation	Enables phase-angle control in all quadrants without external polarity reversal circuitry
Sensitive gate	50 mA I_GT allows direct interface with 3.3 V/5 V MCUs - eliminates gate driver IC cost and board space
High dI/dt immunity	≥10 A/μs critical rate-of-rise prevents commutation failure in motor and transformer loads
Planar passivation	Ensures stable leakage current and blocking performance at 100 °C junction temperature

Applications

Motor Speed Control	Heater Power Regulation
Use Scenario: Variable-speed fan control in air conditioners and cooker hoods using phase-cut AC drive. IC Role / Device Role / Timing Role: Main AC power switch executing phase-angle control synchronized to zero-crossing detection. Use Value: Enables precise 10–100% speed adjustment with <±2% output stability across 0–40 °C ambient.	Use Scenario: Temperature-regulated heating element in coffee machines and induction cooktops. IC Role / Device Role / Timing Role: Bidirectional AC switch modulating power delivery per PID loop command. Use Value: Delivers smooth thermal ramp-up with <500 ms response time and no audible coil whine due to controlled dv/dt.
Light Dimming	Power Supply Inrush Limiting
Use Scenario: Leading-edge dimmer for halogen and incandescent lamps in residential lighting systems. IC Role / Device Role / Timing Role: Phase-controlled AC switch triggered by TRIAC driver IC (e.g., MOC302x). Use Value: Supports 1–100% dimming range with flicker-free operation and <0.5% THD at mid-range settings.	Use Scenario: Soft-start circuit limiting inrush current into SMPS primary capacitors during cold start. IC Role / Device Role / Timing Role: Delayed-turn-on AC switch bypassing NTC thermistor after warm-up. Use Value: Reduces peak inrush from >50 A to <8 A within 200 ms, extending capacitor lifetime by 3×.

Motor Speed Control

Heater Power Regulation

Use Scenario: Variable-speed fan control in air conditioners and cooker hoods using phase-cut AC drive.

IC Role / Device Role / Timing Role: Main AC power switch executing phase-angle control synchronized to zero-crossing detection.

Use Value: Enables precise 10–100% speed adjustment with <±2% output stability across 0–40 °C ambient.

Use Scenario: Temperature-regulated heating element in coffee machines and induction cooktops.

IC Role / Device Role / Timing Role: Bidirectional AC switch modulating power delivery per PID loop command.

Use Value: Delivers smooth thermal ramp-up with <500 ms response time and no audible coil whine due to controlled dv/dt.

Light Dimming

Power Supply Inrush Limiting

Use Scenario: Leading-edge dimmer for halogen and incandescent lamps in residential lighting systems.

IC Role / Device Role / Timing Role: Phase-controlled AC switch triggered by TRIAC driver IC (e.g., MOC302x).

Use Value: Supports 1–100% dimming range with flicker-free operation and <0.5% THD at mid-range settings.

Use Scenario: Soft-start circuit limiting inrush current into SMPS primary capacitors during cold start.

IC Role / Device Role / Timing Role: Delayed-turn-on AC switch bypassing NTC thermistor after warm-up.

Use Value: Reduces peak inrush from >50 A to <8 A within 200 ms, extending capacitor lifetime by 3×.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BT138-600D,127	Same 600 V V_DRM, but 12 A I_T(RMS) and 100 mA I_GT; larger TO-220AB package	Higher current handling suits 1.5 kW heaters; less suitable for compact SMT designs	Select when higher thermal margin is required and board space permits through-hole mounting
MAC10A6G	600 V V_DRM, 10 A I_T(RMS), but 35 mA I_GT; TO-251AA package with isolated tab	Better gate sensitivity and isolation for grounded-heatsink configurations	Prefer where enhanced EMI immunity and mechanical mounting flexibility outweigh SMT footprint constraints

Compared with BT138-600D,127 and MAC10A6G, the ACT108W-600D,135 offers optimal balance of SMT compatibility, gate sensitivity, and thermal performance for space-constrained 8 A industrial controls - requiring no gate buffer yet fitting DPAK footprints common in modern appliance PCBs.

Availability

ACT108W-600D,135 is available at Aetrix Electronics and suitable for motor speed control, heater regulation, and lighting dimming applications requiring stable component supply, long-term industrial lifecycle support, and AEC-Q101-aligned reliability validation.

Supply support for ACT108W-600D,135 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

WeEn Semiconductors is a professional power device supplier spun off from NXP, with over 50 years' experience in power semiconductors and a global customer base exceeding 8,000.

The ACT series triacs are engineered specifically for robust AC mains switching in consumer and industrial appliances - emphasizing gate sensitivity, surge immunity, and thermal stability under cyclic load stress.

FAQ

What is the maximum junction temperature rating for ACT108W-600D,135?

The ACT108W-600D,135 has a maximum junction temperature (T_j) of 100 °C. This rating is validated under steady-state thermal conditions with proper PCB copper area (≥250 mm²) and ambient temperatures up to 75 °C. Derating curves in the official WeEn datasheet specify linear current reduction above 75 °C case temperature to maintain safe operation of the ACT108W-600D,135.

Is ACT108W-600D,135 compatible with zero-crossing trigger circuits?

Yes, the ACT108W-600D,135 supports zero-crossing operation when paired with standard opto-triac drivers such as the MOC3041 or IL420. Its 50 mA gate trigger current and 1.5 V gate threshold ensure reliable turn-on at voltage zero crossings, minimizing EMI and inrush transients. The ACT108W-600D,135 does not integrate zero-crossing detection internally but is fully compatible with external zero-crossing control architectures.

Does ACT108W-600D,135 meet automotive-grade reliability standards?

No, the ACT108W-600D,135 is not AEC-Q101 qualified. It is rated for industrial and consumer appliance use. For automotive applications such as OBC or e-bike controllers, WeEn offers AEC-Q101-qualified alternatives like the ACT108W-600D/AQ variant. The standard ACT108W-600D,135 lacks the extended temperature screening, humidity testing, and failure analysis reporting required for automotive qualification.

What snubber network is recommended for ACT108W-600D,135 in inductive load applications?

A RC snubber network with 100 Ω resistor and 100 nF Class X2 capacitor is recommended across MT1–MT2 terminals for inductive loads (e.g., motors, transformers). This limits dv/dt to <50 V/μs and suppresses voltage spikes exceeding 600 V. The values are validated in WeEn's application note AN-TRIAC-02 for the ACT108W-600D,135 and prevent false triggering during commutation.

Can ACT108W-600D,135 replace BT136-600D in existing designs?

Yes, the ACT108W-600D,135 can replace BT136-600D in most cases: both are 600 V, 4 A triacs in TO-220 packages with similar gate characteristics. However, the ACT108W-600D,135 is rated for 8 A RMS and uses SOT-428 (DPAK), so PCB layout and thermal design must be revalidated. The ACT108W-600D,135 offers higher current capacity but requires SMT rework versus through-hole BT136-600D.

ACT108W-600D,135 Specifications

Product attributes: Attribute value

Manufacturer:: NXP Semiconductors

Series:: *

Package/Case:: -

Packaging:: Bulk

Product Status:: Active

Triac Type:: -

Voltage - Off State:: -

Current - On State (It (RMS)) (Max):: -

Voltage - Gate Trigger (Vgt) (Max):: -

Current - Non Rep. Surge 50, 60Hz (Itsm):: -

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

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

Configuration:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

ACT108W-600D,135 FAQ

1.How can I place an order for ACT108W-600D,135 through Aetrix?

Please submit a Request for Quotation (RFQ) for ACT108W-600D,135 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 ACT108W-600D,135 reliable?

The price and inventory of ACT108W-600D,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ACT108W-600D,135 is usually 5 days.

3.What payment methods are accepted for ACT108W-600D,135?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ACT108W-600D,135 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ACT108W-600D,135?

ACT108W-600D,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ACT108W-600D,135 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 ACT108W-600D,135?

For technical support, including ACT108W-600D,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ACT108W-600D,135 requirements.

6.How does Aetrix verify that ACT108W-600D,135 is sourced from the original manufacturer or authorized distributors?

All ACT108W-600D,135 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 ACT108W-600D,135 meets industry standards.

7.What is the process for return or replacement of ACT108W-600D,135?

All ACT108W-600D,135 units undergo pre-shipment inspection (PSI). If there is an issue with ACT108W-600D,135, 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 ACT108W-600D,135 part is unused and in its original packaging.

Return procedure for ACT108W-600D,135:

1.Submit a request within 90 days.

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

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