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STMicroelectronics ACS102-6T1-TR
- Part No.:
- ACS102-6T1-TR
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ACS102-6T1-TR.pdf
- Description:
- TRIAC ALTERNSTR 600V 0.2A 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:8,113
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Product details
Overview
ACS102-6T1-TR from STMicroelectronics is a transient-protected AC line switch (ACS™) designed for direct microcontroller-driven AC ON/OFF control of low-power inductive or resistive loads. It delivers 0.2 A RMS on-state current, 600 V blocking voltage (VDRM), 5 mA gate trigger current (IGT), and integrated overvoltage crowbar clamping (VCL ≥ 650 V) - enabling robust switching in appliance valves, solenoids, and door locks without external snubbers.
For engineers reviewing the ACS102-6T1-TR datasheet, ACS102-6T1-TR pinout, ACS102-6T1-TR application, or ACS102-6T1-TR equivalent, this device offers verified IEC 61000-4-5 compliance, direct MCU interface via negative gate current, SO-8 thermal performance with common-tab cooling, and validated clamping behavior during high-dI/dt inductive turn-off.
Technical Context
The ACS102-6T1-TR integrates an ASD-based structure combining a main AC switch with an overvoltage crowbar and gate-level shifter driver. Its triggering relies on negative gate current (IGT = 5 mA max), and it operates in quadrants II–III with static dV/dt immunity >300 V/µs at 125°C.
Clamping action activates when load current falls below holding current (IH ≤ 20 mA), limiting voltage to VCL ≥ 650 V during inductive energy dissipation. The SO-8 package provides Rth(j-a) = 150 °C/W (FR4, 40 mm² copper) and supports multi-device thermal sharing via common tab connection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RMS On-State Current | 0.2 A at Tamb = 100°C - supports continuous switching of micro-motors, solenoids, and valves without derating in compact enclosures. |
| Blocking Voltage | 600 V VDRM - ensures reliable isolation across 230 VAC mains with margin for transients and harmonics. |
| Gate Trigger Current | 5 mA max - enables direct drive from standard MCU GPIO pins with simple series resistor (no level shifter required). |
| Clamping Voltage | ≥650 V at Tj = 125°C - actively limits turn-off overvoltage from inductive loads up to 15 H, eliminating need for varistors. |
| Static dV/dt Immunity | >300 V/µs at Tj = 125°C - prevents false triggering from EMI or fast line transients in noisy industrial environments. |
| On-State Voltage Drop | ≤1.2 V at ITM = 0.3 A - minimizes conduction loss and self-heating in thermally constrained SO-8 layout. |
| Thermal Resistance | 150 °C/W junction-to-ambient (SO-8, FR4, 40 mm² copper) - enables stable operation up to 100°C ambient with standard PCB copper area. |
Pinout & Package
ACS102-6T1-TR uses the SO-8 surface-mount package with exposed thermal pad (common tab). Pin assignments are validated per STMicroelectronics datasheet Rev 2 (June 2006), Figure 18 and Table 6.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| COM | Common reference terminal | Connects to AC mains neutral or return path; shared tab enables thermal coupling with other ACS devices. |
| OUT | Switched AC output | Drives load (e.g., valve coil); carries full load current and experiences clamped overvoltage during turn-off. |
| G | Negative gate input | Receives sinking current from MCU GPIO; triggers conduction when IG ≥ 5 mA (negative polarity required). |
| NC (Pins 2, 4, 5, 7) | No connect | Unbonded internal terminals; must remain unconnected per design - no routing or grounding allowed. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated overvoltage crowbar | Clamps turn-off spikes to ≤650 V without external components - meets IEC 61000-4-5 surge immunity without varistors or snubbers. |
| Direct MCU interface | Accepts negative gate current from standard 3.3 V/5 V GPIO - eliminates level shifters, optocouplers, and discrete drivers. |
| Common-tab thermal architecture | Exposed SO-8 tab serves as both thermal path and COM node - allows parallel mounting of multiple ACS devices on single heatsink or copper plane. |
| High-noise immunity | Static dV/dt >300 V/µs at 125°C - suppresses false triggering from EMI in washing machines, HVAC controls, and industrial PLC outputs. |
| Inductive load optimized | Holding current IH ≤ 20 mA and latching current IL ≤ 25 mA - ensures reliable turn-on and sustained conduction for solenoids and micro-motors. |
Applications
| Appliance Valve Control | Industrial Solenoid Driver |
|---|---|
|
Use Scenario: Precise on/off timing of water/gas valves in dishwashers and coffee machines under variable line voltage and temperature. IC Role / Device Role / Timing Role: AC line switch providing zero-crossing–independent, noise-immune switching with built-in surge protection. Use Value: Eliminates external snubber components and reduces BOM count by up to 80%, while maintaining IEC 61000-4-5 compliance across product lifetime. |
Use Scenario: Driving 24 VAC or 115 VAC solenoids in packaging machinery where rapid, repeatable actuation is required amid EMI-rich factory floors. IC Role / Device Role / Timing Role: Transient-hardened AC switch handling inductive kickback without auxiliary clamping, triggered directly by PLC output. Use Value: Enables direct replacement of electromechanical relays with solid-state reliability, reducing mechanical wear and acoustic noise. |
| Smart Door Lock Actuator | Small Appliance Micro-Motor Control |
|
Use Scenario: Secure, low-power AC switching for electromagnetic door strikes in smart home systems operating from universal AC input. IC Role / Device Role / Timing Role: Fail-safe AC switch with overvoltage crowbar protecting against lightning-induced surges on building wiring. Use Value: Guarantees uninterrupted operation during line transients up to 2 kV peak, meeting UL 60730 safety requirements for household controllers. |
Use Scenario: Speed-controlled fan or pump motor in compact kitchen appliances where space and thermal management are critical. IC Role / Device Role / Timing Role: Low-RMS-current AC switch delivering precise phase-angle–independent on/off control with minimal conduction loss. Use Value: Achieves <1.2 V on-state drop at 0.2 A, limiting self-heating in sealed enclosures and extending system MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar AC line switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ACS108-6T1-TR | Higher RMS current rating (0.8 A), same 600 V VDRM and SO-8 package; requires higher gate current (IGT = 15 mA). | Supports heavier inductive loads (e.g., larger solenoids, 24 VAC contactors); not suitable for space-constrained 0.2 A designs due to increased thermal mass. | Select when load current exceeds 0.2 A but board layout and thermal budget allow SO-8 footprint reuse. |
| ACS102-6TA-TR | Same electrical specs (0.2 A, 600 V, 5 mA IGT), but TO-92 through-hole package with Rth(j-l) = 60 °C/W - superior lead-to-board conduction cooling. | Better suited for low-volume, serviceable designs or legacy through-hole assembly; lacks common-tab thermal sharing capability of SO-8. | Choose for manual assembly, field-replaceable modules, or when PCB real estate permits larger TO-92 footprint and enhanced thermal conduction. |
Compared with ACS102-6TA-TR and ACS108-6T1-TR, the ACS102-6T1-TR uniquely balances ultra-low component count, SO-8 thermal scalability via common tab, and verified 0.2 A inductive switching - making it optimal for high-volume, space-constrained appliance control boards requiring IEC 61000-4-5 compliance without redesign.
Availability
ACS102-6T1-TR is available at Aetrix Electronics and suitable for appliance valve control, industrial solenoid driving, and smart door lock actuation requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ACS102-6T1-TR 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 silicon solutions for automotive, industrial, and consumer markets since 1987.
The ACS™ AC switch family was developed specifically for solid-state replacement of electromechanical relays in AC load control, emphasizing integrated surge protection, direct MCU interfacing, and thermal scalability across TO-92 and SO-8 packages.
FAQ
What is the correct gate drive configuration for ACS102-6T1-TR?
The ACS102-6T1-TR requires a negative gate current - meaning the MCU GPIO must sink current from the G pin through a series resistor. With a 5 V MCU, a 680 Ω resistor yields ~5.1 mA gate current, satisfying the 5 mA max IGT spec. The COM pin must be tied to the MCU ground reference, and no positive gate voltage may be applied.
Can ACS102-6T1-TR replace a mechanical relay in a 230 VAC, 0.15 A solenoid circuit?
Yes - the ACS102-6T1-TR supports 0.2 A RMS at 100°C ambient and clamps turn-off overvoltage to ≥650 V, eliminating the need for external snubbers. Its 600 V VDRM provides 1.6× margin above 230 VAC peak (325 V), and its >300 V/µs dV/dt immunity prevents false triggering from solenoid back-EMF transients.
Does ACS102-6T1-TR require a heat sink in SO-8 configuration?
No dedicated heat sink is required for typical 0.2 A loads at ≤100°C ambient, provided the SO-8 thermal pad is soldered to ≥40 mm² of 35 µm copper on FR4. The datasheet confirms Rth(j-a) = 150 °C/W under those conditions, resulting in ≤30°C junction rise above ambient - well within the 125°C max Tj rating.
How does the crowbar overvoltage protection differ from a standard TVS diode?
The ACS102-6T1-TR's crowbar structure is monolithically integrated and activated only during inductive turn-off or line surges - it conducts heavily to clamp voltage to VCL ≥650 V while dissipating stored inductive energy internally. Unlike a TVS, it does not degrade with repeated events and requires no external power path or layout compromises.
ACS102-6T1-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- ACS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Triac Type:
- Alternistor - Snubberless
- Voltage - Off State:
- 600 V
- Current - On State (It (RMS)) (Max):
- 200 mA
- Voltage - Gate Trigger (Vgt) (Max):
- 900 mV
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 7.3A, 7.6A
- Current - Gate Trigger (Igt) (Max):
- 5 mA
- Current - Hold (Ih) (Max):
- 20 mA
- Configuration:
- Single
- Operating Temperature:
- -30°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ACS102-6T1-TR FAQ
1.How can I place an order for ACS102-6T1-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for ACS102-6T1-TR 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 ACS102-6T1-TR reliable?
The price and inventory of ACS102-6T1-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ACS102-6T1-TR is usually 5 days.
3.What payment methods are accepted for ACS102-6T1-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ACS102-6T1-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ACS102-6T1-TR?
ACS102-6T1-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ACS102-6T1-TR 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 ACS102-6T1-TR?
For technical support, including ACS102-6T1-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ACS102-6T1-TR requirements.
6.How does Aetrix verify that ACS102-6T1-TR is sourced from the original manufacturer or authorized distributors?
All ACS102-6T1-TR 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 ACS102-6T1-TR meets industry standards.
7.What is the process for return or replacement of ACS102-6T1-TR?
All ACS102-6T1-TR units undergo pre-shipment inspection (PSI). If there is an issue with ACS102-6T1-TR, 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 ACS102-6T1-TR part is unused and in its original packaging.
Return procedure for ACS102-6T1-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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