BT136-600E 4Q TRIAC: Datasheet, Circuit and Equivalent
TRIAC SENS GATE 600V 4A TO220AB
The BT136 is TRIAC with 4A maximum terminal current. This post mainly covers datasheet, pinout, circuit, equivalents, use, and other details about BT136 Triac. Furthermore, there is a huge range of semiconductors, capacitors, resistors, and Ics in stock. Welcome your RFQ!

BT136 BASIC WORKING OF BT136 TRIAC
What is BT136?
The BT136 is TRIAC with 4A maximum terminal current. The BT136's gate threshold voltage is likewise very low, allowing it to be driven by digital circuits. TRIACs are often utilized for switching AC applications since they are bi-directional switching devices.
BT136 Pinout

BT136 Pinout
| Pin Number | Pin Name | Description |
| 1 | Main Terminal 1 | Connected to Phase or neutral of AC mains |
| 2 | Main Terminal 2 | Connected to Phase or neutral of AC mains |
| 3 | Gate | Used to trigger the SCR. |
BT136 CAD Model
Symbol

BT136 Symbol
Footprint

BT136 Footprint
Specifications
- TypeParameter
- Mounting Type
The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.
Through Hole - Package / Case
refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.
TO-220-3 - Surface Mount
having leads that are designed to be soldered on the side of a circuit board that the body of the component is mounted on.
NO - Voltage-Off State600V
- Operating Temperature
The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.
125°C TJ - Packaging
Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.
Tube - Published2011
- Part Status
Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.
Obsolete - Moisture Sensitivity Level (MSL)
Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures
1 (Unlimited) - Base Part Number
The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.
BT136 - Pin Count
a count of all of the component leads (or pins)
3 - Configuration
The parameter "Configuration" in electronic components refers to the specific arrangement or setup of the components within a circuit or system. It encompasses how individual elements are interconnected and their physical layout. Configuration can affect the functionality, performance, and efficiency of the electronic system, and may influence factors such as signal flow, impedance, and power distribution. Understanding the configuration is essential for design, troubleshooting, and optimizing electronic devices.
Single - Trigger Device Type
Trigger Device Type is a parameter in electronic components that refers to the type of device or mechanism used to initiate a specific action or function within the component. This parameter specifies the specific trigger device, such as a sensor, switch, or signal input, that is required to activate or control the operation of the component. Understanding the trigger device type is crucial for proper integration and operation of the electronic component within a larger system or circuit. By specifying the appropriate trigger device type, engineers and designers can ensure that the component functions correctly and responds to the intended input signals or conditions.
TRIAC - Voltage - Gate Trigger (Vgt) (Max)
Voltage - Gate Trigger (Vgt) (Max) refers to the maximum voltage level required to trigger the gate of a semiconductor device, such as a thyristor or triac, into the conductive state. When the gate receives this voltage, it initiates the device's conduction, allowing current to flow between its anode and cathode. Exceeding this voltage can lead to unwanted behavior or damage to the component, making it a critical parameter in designing circuits that utilize these devices. Understanding Vgt is essential for ensuring proper operation and reliability in electronic applications.
1.5V - Current - Non Rep. Surge 50, 60Hz (Itsm)
The parameter "Current - Non Rep. Surge 50, 60Hz (Itsm)" in electronic components refers to the maximum non-repetitive surge current that a component can withstand without damage during a single surge event at frequencies of 50Hz or 60Hz. This parameter is important for assessing the robustness and reliability of the component in handling sudden spikes or surges in current that may occur in the electrical system. It helps in determining the level of protection needed for the component to ensure its longevity and proper functioning in various operating conditions. Manufacturers provide this specification to guide engineers and designers in selecting the appropriate components for their applications based on the expected surge current levels.
25A 27A - Current - Gate Trigger (Igt) (Max)
Current - Gate Trigger (Igt) (Max) refers to the maximum gate trigger current required to activate a semiconductor device, such as a thyristor or triac. It is the minimum current that must flow into the gate terminal to ensure that the device turns on and conducts current between its anode and cathode. Exceeding this value can lead to unnecessary power consumption, while insufficient current may prevent the device from turning on effectively. This parameter is crucial for circuit design, as it influences the selection of gate driving circuits.
10mA - Current - Hold (Ih) (Max)
The parameter "Current - Hold (Ih) (Max)" in electronic components refers to the maximum current required to maintain the component in a latched or on-state after it has been triggered. This parameter is commonly associated with relays, switches, and other devices that have a latching function. It is important because it determines the minimum current that must be supplied to keep the component in its activated state, ensuring reliable operation. Exceeding the maximum Ih value can lead to the component failing to hold its state, potentially causing malfunctions or disruptions in the circuit.
15mA - Current - On State (It (RMS)) (Max)
The parameter "Current - On State (It (RMS)) (Max)" refers to the maximum root mean square (RMS) current that an electronic component, typically a semiconductor device like a thyristor or a transistor, can handle while in the on state without sustaining damage. This value is crucial for ensuring that the component operates safely under load conditions. Exceeding this maximum rating can result in overheating, degradation, or failure of the component over time. It is an important specification for designers to consider when selecting components for a circuit to ensure reliable performance.
4A - Repetitive Peak Off-state Voltage
The Repetitive Peak Off-state Voltage (Vdrm) is a key parameter in electronic components, particularly in devices like thyristors and triacs. It refers to the maximum voltage that can be applied across the component when it is in the off-state without triggering it to turn on. This parameter is crucial for ensuring the proper functioning and reliability of the component in various circuit applications. It helps determine the voltage level at which the component can safely operate without experiencing unintended conduction. Designers need to consider the Vdrm rating to prevent damage to the component and maintain the overall performance of the circuit.
600V - Leakage Current (Max)
Leakage Current (Max) is a parameter that specifies the maximum amount of current that can flow through an electronic component when it is in an off state. It represents the amount of current that leaks through the component due to imperfections in its insulation or semiconductor materials. Excessive leakage current can lead to power loss, reduced efficiency, and potential reliability issues in electronic circuits. Manufacturers provide this specification to help designers ensure that the leakage current does not exceed acceptable limits for the intended application. It is typically measured in microamps (μA) or nanoamps (nA) and is an important consideration in low-power and high-precision electronic designs.
0.5mA - Triac Type
Triac Type refers to the classification of triacs based on their electrical characteristics and applications. Triacs are semiconductor devices that can control current flow in both directions and are commonly used in AC power control. Different types of triacs may have variations in parameters such as voltage rating, current rating, triggering method, and switching speed, making them suitable for specific applications like light dimmers, motor speed controls, and heating regulation. Understanding the triac type is crucial for selecting the appropriate component for a given circuit design.
Logic - Sensitive Gate - Holding Current-Max
The parameter "Holding Current-Max" in electronic components refers to the maximum current required to maintain the component in its ON state once it has been triggered or turned on. This holding current is necessary to prevent the component from turning off unintentionally due to fluctuations in the input signal or other external factors. It is an important specification for components such as thyristors, triacs, and other semiconductor devices that require a continuous current to remain in the conducting state. Understanding the Holding Current-Max value is crucial for ensuring the reliable operation of the component within its specified parameters.
15mA - Source Url Status Check Date
The parameter "Source URL Status Check Date" in electronic components refers to the date when the current status of the source URL was last verified. This date indicates whether the information from the URL is still valid and up-to-date. It helps users assess the reliability of the data provided by the URL and determines if further checks or updates are necessary. This parameter is crucial for ensuring that information related to electronic components remains accurate and trustworthy.
2013-06-14 00:00:00 - RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
ROHS3 Compliant
BT136 Features
High blocking voltage capability
Low holding current for low current loads and lowest EMI at commutation
Planar passivized for voltage ruggedness and reliability
Sensitive gate
Triggering in all four quadrants
BT136 Applications
General Purpose Switching
AC Light dimmers
Strode lights
AC motor speed control
Noise coupling circuits
Controlling AC loads using MCU/MPU
Ac/DC Power control
BT136 Equivalent
BTA08-600B
BT136 Alternatives
BT139, BTA16, BT169, Q4008
How to use BT136 TRIAC

BT136 Circuit
The TRIAC in this circuit is controlled by the switch; when the switch is pressed, the TRIAC closes the connection between the AC bulb and the AC mains. For this to happen, the TRIAC's gate pin must be exposed to a voltage larger than the threshold gate voltage, as well as a current greater than the gate trigger current. This will activate the TRIAC.
Because the TRIAC and SCR have many of the same features, the TRIAC will not turn off when the gate voltage is removed, just like the SCR. To switch off the SCR again, we need a particular form of circuit called a commutation circuit. Normally, this commutation is accomplished by lowering the load current (forced commutation) to a level lower than the holding current. To put it another way, the TRIAC will stay on only as long as the load current exceeds the TRIAC's holding current.
BT136 Package Dimensions

BT136 Package Dimensions
BT136 Manufacturer
NXP Semiconductors is dedicated to providing secure connectivity solutions for embedded applications. The company has 45,000 employees in more than 35 countries and has been operating, with its experience and expertise, for more than 60 years. As a leader in this field, NXP is driving innovation in the secure connected vehicle, end-to-end security & privacy, and smart connected solutions markets, with the hope of making lives easier, better, and safer free scale Semiconductor parts are now a part of the NXP family
Datasheet PDF
- Datasheets :
What is the use of BT136?
The BT136 is TRIAC with 4A maximum terminal current. The gate threshold voltage of the BT136 is also very less so can be driven by digital circuits. Since TRIACs are bi-directional switching devices they are commonly used for switching AC applications.
How do I use BT136?
The BT136 is TRIAC with 4A maximum terminal current. The gate threshold voltage of the BT136 is also very less so can be driven by digital circuits. Since TRIACs are bi-directional switching devices they are commonly used for switching AC applications.
Can the TRIAC BT136 directly replace BTA08?
No, it can’t. BTA08-600 main parameters: current-IT(RMS): 8.0A voltage-VDRM: ≥600V bt136 main parameters: current-IT(RMS): 4.0A voltage-VDRM: ≥600V It can be seen that the main difference is the large difference in current, so the BT136 cannot directly replace BTA08.
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