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recommend a replacement for Q2.

@copilot recommend a replacement for Q2.
2y
Given that Q2 is a BT136-800E,127, a Triac from WeEn Semiconductors, designed to control AC power in applications, I will recommend a replacement based on general availability, performance, and compatibility with similar applications.
Recommended Replacement: TIC206D
Let's explore why the TIC206D is a suitable replacement:
  • Voltage & Current Ratings: Both the BT136-800E and the TIC206D support similar voltage levels at around 800V max, with current ratings also in a comparable range. This compatibility ensures that the TIC206D can handle similar loads as the BT136 without issues.
  • Gate Trigger Current (I_GT): The TIC206D has a comparable gate trigger current to the BT136, ensuring that it can be triggered in similar circuit configurations without needing significant changes.
  • Package Compatibility: While ensuring electrical compatibility is crucial, physical compatibility is equally important for seamless replacement. The TIC206D comes in a TO-220 package, which is a common package for triacs, and should fit most PCB layouts designed for the BT136-800E with minimal adjustments.
  • Availability: The TIC206D is widely available from multiple manufacturers and distributors, ensuring that you can find it easily for prototypes or mass production.
Implementing the Replacement in Your Circuit
When replacing Q2 (BT136-800E) with the TIC206D, make sure to:
  • Review the pinout of the TIC206D as it should be the same, but confirming ensures no surprises. Standard triac pinouts are generally consistent, with the main terminals (MT1 and MT2) and the gate (G), but always verify against the datasheet.
  • Consider any slight variations in gate sensitivity and current handling between the two models. Adjustments in gate resistor values might be necessary to optimize performance.
  • Double-check the thermal characteristics and ensure that your thermal management (heat sinks, thermal vias, etc.) remains adequate for the TIC206D under expected operating conditions.
Remember, when substituting components, especially power components like triacs, it's always a good practice to review both the electrical and mechanical specifications in the datasheets and conduct testing under actual operating conditions to validate performance and reliability.
2y
3
este dispositivo es adecuado para un extractor de aire domestico o un calefactor

@copilot este dispositivo es adecuado para un extractor de aire domestico o un calefactor
2y
Este dispositivo parece ser un sistema de control de potencia, comunmente utilizado para variar la intensidad de corriente a dispositivos tales como extractores de aire o calefactores. Algunos puntos a considerar:
  • Cuenta con dos TRIACs (BT136-800E,127, designados como Q1 y Q2), que son utilizados frecuentemente para controlar la potencia a cargas de AC como motores y calefactores.
  • Usa optoacopladores (MOC3021) para aislar la sección de control del dispositivo que se está manejando.
  • Los TRIACs y los optoacopladores están conectados de manera que los TRIACs pueden ser disparados por los optoacopladores.
  • Los resistores (R1, R2, R3, y R4) podrían estar determinando los puntos de accionamiento de los TRIACs.
  • El conector de tres pines (J5) puede ser utilizado para conectar el controlador a la fuente de alimentación y a la carga (extractor de aire o calefactor).
Sin embargo, es importante señalar que los detalles específicos de la implementación dependerán del diseño específico y de los requerimientos de la aplicación. Esto podría incluir consideraciones tales como la potencia que será manejada, la tensión y la corriente de funcionamiento del extractor de aire o del calefactor, y cuán precisamente se necesita controlar la velocidad o la temperatura.
De todos modos, siempre es una buena idea realizar las pruebas necesarias y tener en cuenta las medidas de seguridad adecuadas al cambiar el diseño o al adaptarlo para una nueva aplicación. Si necesitas más información o ayuda, por favor proporciona más detalles sobre la aplicación específica que desees.
2y
cual es la potencia que soporta esta configuracion
2y
La potencia soportada por este sistema estará determinada en gran parte por los TRIACs (BT136-800E) que utiliza. Según los datos del fabricante, el BT136-800E puede manejar voltajes en estado de bloqueo de hasta 800V y corrientes de conducción continua RMS de hasta 4A.
La potencia máxima manejada por los TRIACs en una situación ideal, con la carga a plena energía y bajo las condiciones nominales, se puede calcular con la siguiente fórmula: P = IV, donde I es la corriente y V es el voltaje. Para el BT136-800E, la potencia sería P = 800V x 4A = 3200W.
Sin embargo, en la práctica, es prudente no operar componentes constantemente en sus límites nominales para evitar un funcionamiento inseguro o inesperado. Adicionalmente, las conexiones, trazas de la PCB, resistencias y otros componentes también tienen límites de potencia y pueden afectar el manejo de potencia global de la configuración.
Por lo tanto, es recomendable dejar un margen de seguridad y tomar todas las medidas de precaución necesarias al desarrollar el sistema, incluyendo análisis térmico, seleccionar TRIACs con límites de tensión y corriente superiores a las que esperas en tu aplicación, y diseñar trazas de PCB y conexión de componentes que puedan manejar adecuadamente la corriente y la tensión de tu aplicación.
2y
1
Q2
Q1
R2
Resistance
330 Ω
J1
J3
R3
Resistance
1kΩ
R1
Resistance
1kΩ
U1
U2
R4
Resistance
330 Ω


  • Ground
    A common return path for electric current. Commonly known as ground.
  • Net Portal
    Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
  • Power Net Portal
    Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
  • Generic Resistor
    A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibrary
  • Generic Capacitor
    A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibrary
  • Generic Inductor
    A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibrary
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
  • RMCF0805JT47K0
    47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
  • 875105359001
    10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
  • CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink

Control de dispositivos CA con electronica

Control de dispositivos CA con electronica thumbnail
Control de un LCD1602 (HD44780) en modo paralelo de 8 bits con Arduino Uno R3, ajuste de contraste por potenciómetro, retroiluminación con resistencia en serie y desacoplo con condensadores de 100 nF y 10 µF

Properties

Consumer Electronics

Arduino

USB

LCD

5

V

Display

Pricing & Availability

Distributor

Qty 1

Arrow

$0.72–$0.92

Digi-Key

$0.99–$1.83

LCSC

$1.97–$2.03

Mouser

$3.14

TME

$3.64

Verical

$0.83–$1.81

Controls