Thyristor 2P4M 2A 400V (NEC)
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Prices updated: 12 Oct 2026
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About this product
The 2P4M is a 2A, 400V thyristor (silicon controlled rectifier) from NEC for low-power switching. A gate pulse triggers it into conduction, and it remains on until the anode current falls below the holding level. It is used in small control, switching and power-regulation circuits.
Specifications
- Device type
- SCR (thyristor) / ثايرستور
- Current rating
- 2A
- Voltage rating
- 400V
Frequently asked questions
Is the 2P4M suitable for AC switching?
It is a unidirectional thyristor, so on its own it controls current in one direction only. For AC control, use a bridge rectifier in front of it or choose a triac.
How do I confirm the pinout of the 2P4M before wiring?
The listing does not give the package outline, so check the NEC datasheet for the exact pin assignment (anode, cathode and gate) before connecting it. Do not assume the pinout from a similar part.
