QK016NH4RP

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Triac Type:	Alternistor - Snubberless
Voltage - Off State:	1kV
Current - On State (It (RMS)) (Max):	16A
Voltage - Gate Trigger (Vgt) (Max):	1.3V
Current - Non Rep. Surge 50, 60Hz (Itsm):	167A, 200A
Current - Gate Trigger (Igt) (Max):	35mA
Current - Hold (Ih) (Max):	50mA
Configuration:	Single
Operating Temperature:	-40°C ~ 125°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	TO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Supplier Device Package:	TO-263 (D2Pak)

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Thyristors - TRIACs

Thyristors are power semiconductors designed to control large amounts of electric current and voltage. A Triode AC Switch (TRIAC) is a three-terminal analog semiconductor device that conducts current in either direction when triggered. TRIACs are widely used in applications such as motor speed control, light dimming, temperature control, and power control. The QK016NH4RP is a widely used TRIAC for such applications.

QK016NH4RP Application Field and Working Principle

The QK016NH4RP is a general purpose TRIAC with a gate trigger current of 4 mA and a on-state gate trigger voltage of 1.5V. It is used in applications where a TRIAC needs to be used as a switch to control voltage and current in both AC and DC circuits. It can be used for switching high voltage loads. The device offers low thermal runaway, allowing for a high degree of protection against temperature-dependent over current operation.The QK016NH4RP application field can include high power industrial automation, power control, lighting control, motor control, heater and stove control, AC rectification and many other low power applications. The QK016NH4RP working principal is based on a “fill and fire” mechanism. It works by creating a gate-controlled thyristor in which current can flow in both directions across the gate, allowing control of both the current and the voltage. When triggered by a gate signal, the gate charge carriers are filled and then fired instead of holding in the off-state. If the gate voltage is low enough, the device can remain in the on-state, even if the gate current is removed.The device has a breakdown voltage of 400V, which is high enough to operate in an AC-to-DC environment normally encountered in small to medium power applications such as motor speed control and switching low wattage loads. It also features a low minimum gate trigger current of 4 mA and a low on-state gate trigger voltage of 1.5V. The device is rated for continuous forward current of up to 8A.For high power applications, the device can be wired in parallel to double the current carrying capacity. This makes the device ideal for power control, lighting control, motor speed control, and AC to DC rectification in high power applications.The most important parameters to consider when using this device are the type of application and the environment. The device should be operated within its rated parameters and a current surge protection device should be used to protect against over-current and temperature-induced triggering.In conclusion, the QK016NH4RP is a general-purpose TRIAC designed for industrial automation, motor control, and light dimming applications. It is suitable for AC and DC applications and can be wired in parallel to double the current carrying capacity. Its low minimum gate trigger current and low on-state gate trigger voltage makes it ideal for switching low wattage loads. Its high breakdown voltage allows for use in high power applications. Properly configured and used it can provide reliable and efficient control of high voltage and current in both AC and DC circuits.

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