NXP USA Inc. BT149B,126
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- BT149B,126
- NXP USA Inc.
- SCR 200V 800MA TO92-3
- Thyristors - SCRs
- BT149B,126 Datasheet
- TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
- Tape & Box (TB)
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What is BT149B,126
NXP USA Inc. Part Number BT149B,126（Thyristors - SCRs）, developed and manufactured by NXP USA Inc., distributed globally by Jinftry. We distribute various electronic components from world-renowned brands and provide one-stop services, making us a trusted global electronic component distributor.
BT149B,126 is one of the part numbers distributed by Jinftry, and you can learn about its specifications/configurations, package/case, Datasheet, and other information here. Electronic components are affected by supply and demand, and prices fluctuate frequently. If you have a demand, please do not hesitate to send us an RFQ or email us immediately [email protected] Please inquire about the real-time unit price, Data Code, Lead time, payment terms, and any other information you would like to know. We will do our best to provide you with a quotation and reply as soon as possible.
BT149B,126 Specifications
- Part NumberBT149B,126
- CategoryThyristors - SCRs
- ManufacturerNXP USA Inc.
- DescriptionSCR 200V 800MA TO92-3
- PackageTape & Box (TB)
- Series-
- Operating Temperature-
- Mounting TypeThrough Hole
- Package / CaseTO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
- Supplier Device PackageTO-92-3
- Current - Hold (Ih) (Max)5 mA
- Voltage - Off State200 V
- Voltage - Gate Trigger (Vgt) (Max)800 mV
- Current - Gate Trigger (Igt) (Max)200 µA
- Voltage - On State (Vtm) (Max)1.7 V
- Current - On State (It (AV)) (Max)500 mA
- Current - On State (It (RMS)) (Max)800 mA
- Current - Off State (Max)100 µA
- Current - Non Rep. Surge 50, 60Hz (Itsm)8A, 9A
- SCR TypeSensitive Gate
Application of BT149B,126
BT149B,126 Datasheet
BT149B,126 Datasheet , Tape & Box (TB),Through Hole,TO-226-3, TO-92-3 (TO-226AA) (Formed Leads),TO-92-3,5 mA,200 V,800 mV,200 µA,1.7 V,500 mA,800 mA,100 µA,8A, 9A,Sensitive Gate
BT149B,126 Classification
Thyristors - SCRs
FAQ about Thyristors - SCRs
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1. What is the difference between thyristor and SCR?
Thyristor and thyristor (SCR) are actually the same device, just with different names.
Basic concepts and definitions
Thyristor, also known as silicon controlled rectifier (SCR), is a high-power electrical component with the advantages of small size, high efficiency and long life. It usually consists of three electrodes: anode (A), cathode (K) and gate (G). Thyristors are divided into unidirectional thyristors and bidirectional thyristors. Unidirectional thyristors can be triggered to turn on by applying a positive pulse to the control electrode G, while bidirectional thyristors (TRIAC) can be turned on by applying a positive or negative pulse to the control electrode G. -
2. What is the difference between SCR and SCS?
The main difference between SCR (thyristor) and SCS (thyristor switch) lies in their functions and application scenarios.
Function and application scenarios
SCR (thyristor):
Function: SCR is a three-terminal four-layer semiconductor device that is mainly used to control the conduction and cutoff of current. It can only control conduction, not shutdown, and is a semi-controlled device.
Application scenarios: SCR is often used in overvoltage protection circuits, dimming circuits, etc., to protect and adjust the circuit by controlling voltage and current.
SCS (Silicon Controlled Switch):
Function: SCS is a silicon controlled switch, mainly used for switch action control.
Application scenarios: SCS is often used for simple switch action control, such as household appliances, industrial equipment, etc.
Why are thyristors so popular among other SCR devices?
The main reasons why thyristors (SCRs) are so popular among other SCR devices include their high efficiency, reliability, and wide application scenarios.
Efficiency and reliability
Thyristors have the following advantages:
Efficiency: Thyristors can achieve efficient power control, have high efficiency, can reduce energy loss, and improve the overall performance of the equipment.
Reliability: Thyristors have a simple structure and do not require complex manufacturing processes, so they are low in cost and have a long service life.
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3. Is SCR a DC switch or an AC switch?
AC switch
SCR (Silicon Controlled) is mainly used for AC switching. SCR, or thyristor, is a high-power semiconductor device, mainly used in phase control, rectification, voltage regulation, contactless switching and other applications in AC circuits.
Working principle of SCR
SCR is a four-layer, three-terminal PNPN structure semiconductor device, composed of alternating P-type and N-type semiconductor materials, forming three main terminals: anode, cathode and gate. In the absence of a gate trigger signal, SCR behaves as a reverse-biased PN junction, and even if there is a voltage between the anode and cathode, SCR will not conduct. When the gate receives a sufficiently large trigger signal, the SCR will change from the cut-off state to the on state.
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