TD251N16KOFHPSA1

Series:	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Structure:	Series Connection - SCR/Diode
Moisture Sensitivity Level (MSL):	--
Number of SCRs, Diodes:	1 SCR, 1 Diode
Voltage - Off State:	1.8kV
Current - On State (It (AV)) (Max):	250A
Current - On State (It (RMS)) (Max):	410A
Voltage - Gate Trigger (Vgt) (Max):	2V
Current - Gate Trigger (Igt) (Max):	200mA
Current - Non Rep. Surge 50, 60Hz (Itsm):	9100A @ 50Hz
Current - Hold (Ih) (Max):	300mA
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Chassis Mount
Package / Case:	Module

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TD251N16KOFHPSA1 application field and working principleThe TD251N16KOFHPSA1 is a three-phase, 16-amp module with extensive applications in the power electronics industry. It is mostly used to protect against short-circuits and abnormal current, helping to maintain stability in power systems. The device can be used in motor drives, power electronics, and other applications requiring high current capacity.The TD251N16KOFHPSA1 belongs to a family of thyristors known as a silicon-controlled rectifiers or SCRs. It is a type of four-layer, three-terminal semiconductor device. A SCR consists of four layers – gate layer, anode layer, cathode layer and semiconductor layer. It acts as a switch by allowing current flow in the forward direction, and blocking current flow in the reverse direction.The TD251N16KOFHPSA1 is designed with a current limit of 16A, a non-repudiation response time of 4.0 usec, and a recovery temperature of 75D/85GR. Its design offers a stable, non-deformable, and response over temperature range. The device is based on a planar construction with a diffusion barrier to prevent heat and thermal runaway during switching. The SCR has two stable states– OFF state where no current flows when the voltage is zero, and ON state where current flows from anode to cathode when the device is triggered.Once the device is triggered by a gate pulse, it will remain in its ON state until the need for current interruption is no longer present. When the current interruption is needed, the TD251N16KOFHPSA1 must be commutated off. This can be done in two ways, either by a direct current commutation or an alternating current commutation. The alternating current commutation is generally a more reliable method, as it maintains a higher safety margin.The TD251N16KOFHPSA1 can be used in motor drives, power electronics, and other applications requiring high current capacity. In motor drives, it is often used for protection against short-circuits and abnormal current. It also helps maintain control and accuracy in systems where large amounts of power are required, such as in welding machines, industrial robotics, and large scale power distribution.The TD251N16KOFHPSA1 can also be used in power supplies to improve efficiency or reduce noise. This is because the device allows power switches to be closed continuously, eliminating the need for multiple switch-on operations. The device also helps reduce the total standby power consumption of a system by allowing the primary source to remain on during idle periods.In conclusion, the TD251N16KOFHPSA1 is an ideal choice for a wide range of power control applications. It offers low power consumption, high current capacity, and excellent temperature stability. The device can be used in motor drives, power electronics, and other applications requiring high current capacity, providing reliable and accurate performance in a variety of applications.

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