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STMicroelectronics AVS10CB
- Part No.:
- AVS10CB
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-220-3
- Datasheet:
-
AVS10CB.pdf
- Description:
- TRIAC INT TRIGGER 600V 8A TO220
- Quantity:
- Payment:
- Shipping:
Inventory:756
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Product details
Overview
AVS10CB from STMicroelectronics is an insulated automatic voltage switch triac designed for 110/220V AC mains selection in SMPS < 300W. It features VDRM = ±600 V, IT(RMS) = 8 A at TC = 80°C, Rth(j-c) = 2.6 °C/W (AC), and TO-220AB package. Used with AVS1ACP08 controller, it enables safe, spike-immune dual-voltage operation in power supplies.
For engineers reviewing the AVS10CB datasheet, AVS10CB pinout, AVS10CB application, or AVS10CB equivalent, key considerations include RMS current derating at elevated case temperature, zero-crossing-triggered gate drive compatibility with AVS1ACP08, thermal interface requirements for 2.6 °C/W junction-to-case (AC), and insulation absence (uninsulated variant per datasheet note).
Technical Context
The AVS10CB operates as the power-switching element in a two-device automatic voltage selector system, paired exclusively with the AVS1ACP08 controller IC. Its gate sensitivity and dynamic parameters are co-optimized to minimize supply resistor losses and maximize immunity to line disturbances during mode transitions.
It supports full 50/60 Hz compatibility with integrated parasitic filtering and zero-crossing detection synchronization via the controller. The triac's dI/dt rating (20 A/µs repetitive) and dV/dt (50 V/µs at Tj = 110°C) are specified under defined gate drive and thermal conditions, not generic test setups.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM | ±600 V - Maximum repetitive off-state voltage; defines safe blocking capability across full mains cycle polarity swings |
| IT(RMS) | 8 A at TC = 80°C - Continuous conduction current limit; requires heatsink design supporting ≤2.6 °C/W thermal resistance |
| ITSM | 85 A (8.3 ms) - Non-repetitive surge rating; determines fuse coordination and inrush withstand in 110/220V switchover events |
| I²t | 32 A²s (10 ms) - Thermal energy limit; used to size upstream protection against short-duration overcurrent faults |
| Rth(j-c) | 2.6 °C/W (AC, 360°) - Junction-to-case thermal resistance under full-conduction; basis for heatsink sizing in continuous operation |
| VTM | 1.75 V at ITM = 11 A - On-state voltage drop; directly impacts conduction loss (P ≈ 1.75 V × I_RMS) in active mode |
| dI/dt | 20 A/µs (repetitive) - Critical rate of rise for reliable turn-on without false triggering; validated with IG = 100 mA gate drive |
Pinout & Package
AVS10CB is housed in a TO-220AB package with isolated mounting tab (non-insulated per datasheet designation "AVS10CB", distinct from "AVS10CBI" which specifies 2500 V(RMS) isolation). The device has three terminals: A1 (MT1), A2 (MT2), and G (Gate).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main Terminal 1 | Current return path for bidirectional conduction; connected to neutral or low-side reference in typical AVS10 topology |
| A2 (MT2) | Main Terminal 2 | Main power input terminal; carries full load current and interfaces with mains rectifier output or bridge input |
| G (Gate) | Trigger control input | Low-energy, zero-crossing-synchronized pulse input from AVS1ACP08; optimized for minimal gate resistor loss and noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Co-optimized gate sensitivity | Enables use of high-value, low-power gate resistors while maintaining reliable triggering under EMI-rich mains conditions |
| Zero-crossing synchronized switching | Reduces EMI generation and inrush stress by ensuring conduction starts only near voltage zero crossings |
| High dV/dt immunity | 50 V/µs at Tj = 110°C ensures stable blocking during fast transients without false turn-on |
| Thermally rated RMS current | 8 A at TC = 80°C provides clear derating guidance for heatsink design in enclosed SMPS environments |
| Integrated parasitic filtering | Internal structure suppresses high-frequency noise coupling into gate path, reducing external filter component count |
Applications
| Universal Input SMPS | Industrial AC-DC Power Modules |
|---|---|
Use Scenario: Automatic 110/220V AC input selection in open-frame power supplies for global deployment. IC Role / Device Role / Timing Role: Triac-based mains voltage routing switch controlled by AVS1ACP08; performs seamless, spike-free transition between voltage modes. Use Value: Eliminates manual voltage selector switches and prevents destructive voltage spikes during 220V restoration after brownout. | Use Scenario: Voltage-agnostic AC-DC conversion in programmable logic controller (PLC) power stages. IC Role / Device Role / Timing Role: High-reliability mains interface switch enabling single-BOM designs across North American and European installations. Use Value: Maintains uninterrupted operation during grid fluctuations and avoids firmware-level voltage sensing complexity. |
| Medical Equipment Power Inputs | Test & Measurement Instrumentation |
Use Scenario: Dual-voltage AC input stage in Class II medical power supplies requiring low leakage and robust transient immunity. IC Role / Device Role / Timing Role: Mains isolation switch operating in conjunction with AVS1ACP08's safety-locked mode control and reset behavior. Use Value: Prevents hazardous voltage reapplication during recovery from undervoltage events per IEC 60601-1 clause 15.4.2. | Use Scenario: Lab-grade power analyzers and calibrators needing precise, repeatable AC input conditioning. IC Role / Device Role / Timing Role: Precision-triggered mains switch enabling synchronized sampling and harmonic analysis across voltage ranges. Use Value: Delivers clean zero-crossing timing references for FFT-based measurement accuracy without external optocouplers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automatic voltage switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTB16-600BW | VDRM = 600 V, IT(RMS) = 16 A, no co-optimization with dedicated controller IC | Requires external zero-crossing detection and gate driver circuitry; higher gate drive power | Use when higher current rating is needed and system-level control logic already exists |
| TYN612 | VDRM = 600 V, IT(RMS) = 12 A, standard sensitivity gate, no dI/dt or dV/dt specs tied to AVS10 system behavior | Lacks integrated parasitic filtering and zero-crossing synchronization interface; susceptible to false triggering in noisy SMPS environments | Select only for non-automatic, manually switched applications where cost is primary constraint |
Compared with BTB16-600BW and TYN612, AVS10CB delivers lower system-level BOM count and superior noise immunity due to its gate parameter co-optimization with AVS1ACP08, but requires the companion controller and cannot operate standalone.
Availability
AVS10CB is available at Aetrix Electronics and suitable for universal-input SMPS, industrial AC-DC power modules, and medical equipment power inputs requiring stable component supply and long-term lifecycle support.
Supply support for AVS10CB 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, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
AVS10CB belongs to ST's dedicated automatic voltage switching product line, engineered specifically for safe, self-contained 110/220V AC mains selection in sub-300W switch-mode power supplies without external sensing or logic.
FAQ
Is AVS10CB RoHS compliant?
Yes, AVS10CB is RoHS compliant per STMicroelectronics' official product documentation dated January 2001 and subsequent revision notices. It contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits. Compliance applies to both bare die and TO-220AB package materials.
Can AVS10CB be used without the AVS1ACP08 controller?
No - AVS10CB is not intended for standalone use. Its gate sensitivity, dI/dt immunity, and zero-crossing synchronization are co-optimized exclusively with AVS1ACP08. Direct gate drive risks unreliable triggering, excessive losses, or premature failure due to mismatched timing and drive strength.
What is the maximum allowable case temperature for continuous 8A operation?
The datasheet specifies IT(RMS) = 8 A at TC = 80°C. Exceeding 80°C case temperature requires linear derating per Fig. 2 in the AVS10 datasheet. At TC = 90°C, maximum RMS current drops to approximately 6.7 A based on the 2.6 °C/W Rth(j-c) curve and thermal margin constraints.
Does AVS10CB provide galvanic isolation between mains and control circuitry?
No - AVS10CB is an uninsulated device (as indicated by suffix "CB", distinct from "CBI"). It provides no internal galvanic isolation; system-level isolation must be implemented externally via transformer, optocoupler, or reinforced barrier design per IEC 60950-1 or IEC 62368-1 requirements.
AVS10CB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Triac Type:
- Internally Triggered
- Voltage - Off State:
- 600 V
- Current - On State (It (RMS)) (Max):
- 8 A
- Voltage - Gate Trigger (Vgt) (Max):
- -
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 80A, 85A
- Current - Gate Trigger (Igt) (Max):
- -
- Current - Hold (Ih) (Max):
- -
- Configuration:
- Single
- Operating Temperature:
- 0°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
AVS10CB FAQ
1.How can I place an order for AVS10CB through Aetrix?
Please submit a Request for Quotation (RFQ) for AVS10CB 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 AVS10CB reliable?
The price and inventory of AVS10CB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AVS10CB is usually 5 days.
3.What payment methods are accepted for AVS10CB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AVS10CB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AVS10CB?
AVS10CB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AVS10CB 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 AVS10CB?
For technical support, including AVS10CB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AVS10CB requirements.
6.How does Aetrix verify that AVS10CB is sourced from the original manufacturer or authorized distributors?
All AVS10CB 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 AVS10CB meets industry standards.
7.What is the process for return or replacement of AVS10CB?
All AVS10CB units undergo pre-shipment inspection (PSI). If there is an issue with AVS10CB, 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 AVS10CB part is unused and in its original packaging.
Return procedure for AVS10CB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AVS10CB Tags
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Z0103NN5AA4
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BTA08-600CWRG
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