NEC 2P4M TRIAC 400V 2A TO-126

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NEC 2P4M TRIAC 400V 2A TO-126 The NEC 2P4M SCR Thyristor 400V 2A TO-126 is a passivated, plastic-mold SCR featuring low gate trigger current and compact TO-126 packaging. Rated for 2 A RMS continuous current and 400 V repetitive blocking, it’s optimized for ignition systems, motor control in small appliances, and over-voltage protection applications where gate current is limited. Features Low trigger current SCR (gate sensitive), suitable for limited gate drive scenarios. Repetitive peak reverse/off-state voltage: 400 V. Continuous on-state RMS current: 2 A . Surge capability: 20–25 A for short pulses. Compact TO-126 plastic package for efficient PCB layout and heatsinking. Glass-passivated junction and P-gate design for reliable triggering and robust performance. Specification ABSOLUTE MAXIMUM RATINGS (T a = 25°C) Characteristic Symbol Value Unit Note Non-Repetitive Peak Reverse Voltage* V RSM 500 V R GK = 1 kΩ Non-Repetitive Peak Off-state Voltage* V DSM 500 V R GK = 1 kΩ Repetitive Peak Reverse Voltage* V RRM 400 V R GK = 1 kΩ Repetitive Peak Off-state Voltage* V DRM 400 V R GK = 1 kΩ On-state current I T(AV) 2 (T C =77 °C, θ=180° single phase (1/2 wave)) A See Fig.3, Fig.4 in datasheet Surge Non-Repetitive On-state Current I TSM 20 A See Fig.10 in datasheet Peak Gate Power Dissipation P GM 0.5 (f ≥ 50 Hz, Duty ≤ 10%) W Average Gate Power Dissipation P G(AV) 0.1 W Peak Gate Forward Current I FGM 0.2 (f ≥ 50 Hz, Duty ≤ 10%) A Peak Gate Reverse Voltage V RGM 6 V Junction Temperature T j -40 to +125 °C Storage Temperature T stg -55 to +150 °C Weight — 1.4 g T C : Case Temperature is measured at 1.5mm from the neck of Tablet. * NOTE: Insert a resistance less than 1 kΩ between gate and cathode, because the items indicated are guaranteed by connecting short resistance between gate and cathode (R GK = 1 kΩ). Dimensions and PINOUT Pin Name Function 1 Cathode Connected to neutral 2 Anode Connected to Load 3 Gate Low voltage trigger pulse is given to this pin to turning ON the SCR Applications Electric blanket, Electronic jar, Various temperature control. Electric sewing machine, Speed control of miniature type motor. Light display equipment, Lamp dimmer such as a display for entertainment. Automatic gas lighter, Battery charger. Solid State static switches. Documents Datasheet CAD Files